Industry News
Silicone dynamic domestic and foreign R & D
Silicone is a product development focused on the development up on the development of high value-added downstream products business is almost all of the organic silicon business focus. Comprehensive domestic and international situation, the development of silicone downstream products are mainly concentrated in the following sectors.
First, the microelectronics industry
Silicone material due to excellent heat resistance, electrical properties, has long been in the electronics industry to a two-component RTV silicone rubber form as potting, encapsulation materials to use. Thereafter, the one-component RTV silicone rubber and silicone rubber molding and processing electronics have become the new favorite. Now, with the development of the electronics industry, in addition to perfusion encapsulating material, there are a variety of organic silicon monomer and fine chemicals, specialty silicones become a key material in the electronics industry.
It is reported that in 2010 the demand for electronic products silicone materials will account for 18% of the total amount of organic silicon, silicon gel market average annual growth rate of 8.3%. Another reported that the United States, the Japanese electronics silicone material requirements at annual rates of 4.7%, 6.4%, market size in 2010 will reach $ 3.7 billion, respectively, $ 380 million,
1. coating, perfusion, encapsulation material
1.1 light emitting diode package
Currently, the use of energy-saving light-emitting diode (LED) as an important social saving measures become Public Interest, which can replace incandescent lamps, can be used in car headlights lighting, energy efficiency has an important significance, development prospects. Bonded light emitting diode, packaging, coating or encapsulation is inseparable from silicone materials.
High-brightness light-emitting diodes are also widely used in liquid crystal display backlighting, huge growth potential. Its high demands on packaging materials, not only requires transparent, no color, good light efficiency, but also requires good heat dissipation, safe, and reliable. General epoxy resin will heat yellow, can not meet the high brightness light-emitting diode packaging requirements. The silicone material of the optical characteristics, and more than 90% light transmittance, weather, heat, extreme heat non-yellowing, can absorb impact, good adhesion, flexibility, and the two liquid components are mixed no bubbles, no solvents, environmental protection, compliance with packaging requirements. In recent years, multinational companies have launched a variety of class encapsulation material and the adhesive material, press material forms a gel-type partakers, elastomeric, resin-based (optical lenses), also have different hardness (low, medium, high) series , curing methods, there are room temperature curing two-component, two-component heat curing type. Many products high refractive index (1.53), on the 400 nm wavelength light permeable than 90%.
Some companies focus on fast-growing LED market, it launched a high-viscosity, high purity and moisture resistant, thermally stable silicone sealant. There has developed a dedicated LED two-component liquid silicone high refractive index, high hardness silicone resin, filling and capping completed together. There is a special glue for packaging LED package, transparent, sealed with a thickness of several vinyl-containing polysiloxane silsesquioxane (made of vinyl trimethoxy silane agent and other alkyl trimethoxy silane agent) and methyl hydrogen Sihuan body made of heat curing effect again.
1.2 liquid crystal panel thin film transistor (TFT) planarization
The thin film transistor liquid crystal flat panel technology is a hot topic that requires new light-transmitting coating material. Conventional clear coating materials are typically acrylate-based, acrylate-based but will turn yellow when heated, while rear heated silicone material will not yellow, and transparency, durability, coating it with a good contrast LCD panel nor by reason of the liquid crystal alignment irregularities lead to confusion and poor contrast performance impact. Data show that the silicone-based material at a wavelength of 400 nm by 98%, and 88% acrylate.
Due to the thin film transistor liquid crystal flat panel is the hot spot, so companies compete to launch new products, competition is very fierce. One company introduced a heat-resistant, good mechanical strength, low price of a two-component gel, not only for the electronics industry, but also for the automotive, aerospace, communications and other fields.
1.3 Thermal silicon material
Radiating silicone rubber for more research: a thermally conductive material such as for CPU heat generation and heat between the body and the like. Such materials, good heat resistance, long-term stable and good insulation, flame resistance. It can also be used in home appliances, game consoles, cars and electrical appliances.
Radiating ultra-low hardness silicone rubber hardness can be done only 1/10 of the conventional products, high thermal conductivity, good contact with the uneven surface, some varieties of thermal conductivity 2.7 W / mk, thickness of 0.5 ~ 5 mm.
1.4 photoresist
The two companies have co-developed a photoresist containing a large amount of silicon, which is a breakthrough in the photoresist industry. Such resist the two companies use their own unique polymers and co-production of the light-sensitive material, used in the past to solve the pure silicon material will release a gas problem. It alleged that the product is mainly used for 65 nm chips.
In addition, the display can be silicon material for a rechargeable battery comprising an anode and a cathode film, can enhance the battery and safety, this area has been used trimethoxy silane agent having an epoxy group and tetraethoxysilane and polybenzimidazole formed casting.
2. The electronics industry with an organic silicon monomer
For the miniaturization of semiconductor devices, it must do everything possible to reduce the k value, in order to improve the signal processing speed and reduce power consumption. This field using a variety of organic silicon monomer. There are:
2.1 trimethylsilane (CH3) 3SiH
Trimethyl silane monomer (the 3MS) is made of silicon-based low-k (k = 2.7 or 2.2) of the interlayer insulator (ILD) and the diffusion barrier film material, trimethyl silane monomer to the environment harmless, inexpensive. Advanced semiconductor devices low-k interlayer insulating width of 90 nm is mainly used in the manufacture of the device. The company has been carrying out dozens of tons of trimethylsilane scale production.
2.2 polysilazane (PHPS)
Performance polysilazane having a glass, shrinkage, high transparency, heat resistance, smooth, wear-resistant, mainly used in the semiconductor, it can be formed on the semiconductor substrate shallow trench for the semiconductor industry lines 65nm or less, further It can be used for automotive protective coatings, anti-fouling, exterior paint and many other uses. Due to the growing demand and other advanced semiconductor memory device, the amount of rapid growth, the company has polysilazane production capacity in recent years has expanded five times.
2.3 tetramethyl cyclotetrasiloxane
Line width of 90 nm and 65 nm chip production in the low-k material, the former is still widely used (flooding) body is Me3SiH or tetramethyl cyclotetrasiloxane of carbon-doped silicon dioxide. Depositing silicon k tetramethyl cyclotetrasiloxane obtained value of about 3 by the CVD method.
2.4 methyldiethoxysilane
The company has made use diethoxysilane porous low-k material. (Porous diethoxymethylsilane) CVD deposition method using an organic silane dimethyl porogen terpinene (porogen (poro-generating materials) such as α-terpinene (terpinene, terpinene)), the ultraviolet curable through porogen burn holes left, so k values below 2.5. Some companies have used this technology to develop the next generation of chips 32 nm, it is expected to launch the product in 2009.
2.5 poly-silicon silsesquioxane (POSS)
Poly silicon silsesquioxane or poly silicon, said polyhedral cage silsesquioxane (RSiO1.5) n is a kind of natural material category "nano" organic - inorganic hybrids. Poly silicon silsesquioxane in the Si-Si distance of ~ 0.5 nm; R-R distance of ~ 1.5 nm. The characteristics of such a compound is no low molecular weight material released, environmentally friendly, there are solid, but also liquid.
Such poly-silicon polyhedral silsesquioxane in the last century had developed many uses, it can be added to the polymer to improve the heat resistance and the like viscoelastic polymer, has subsequently mixed with the polyester, the melting point of the polyester , Tg, flexural modulus and have improved strength.
For its research and development is still in the ascendant, this is because the cage silsesquioxane silicone polymer molecular structure of the R groups can be arbitrarily changed according to performance requirements, such as silicon T8- silsesquioxane containing hydroxyl groups can be used as thermoplastics change agent, intermediate insulating layer, sealants, coatings and the like. Poly-silicon-containing cage silsesquioxane and phenyl may be made of polycarbonate composite, to maintain transparency, but also improve the mechanical strength. Nitrobenzene containing titanium cage silsesquioxane poly silicon can be used as a catalyst of PET. Hydroxyl-containing cage-type poly-silicon silsesquioxane can also be seen as a highly functional polyols, it can be used as a structural unit of the polymer.
Poly silicon clathrate silsesquioxane is a class in electronics and other fields have great prospects of chemicals. For example: In order to produce smaller chips, the material used comprising polymethyl silsesquioxane silicone, and poly alkyl hydrogen silsesquioxane. After the general added pore-forming material as the value of k can be reduced to 2.2; poly silicon hydrogen silsesquioxane can be made ultra resolve photoresist.
Currently marketed by a Japanese company, the United States developed the Q8 series (Q1 ~ Q8) poly silicon silsesquioxane, can make LED packaging materials, photoresists, etc., in Japan, the price per 100 grams of tens of thousands of yen (hundreds USD). The company expects 2010 sales to reach 500 million yen (about US $ 5 million), enough to explain its role.
3. The development of new trends
3.1 silicon carbide
Some multinationals are focused on research of silicon carbide (SiC) material, and commercializing, wide bandgap devices such materials is an important material that can be used in radar, handset manufacturers, etc., will become the next-generation power semiconductor device material. The main raw material is a silane. Monosilane already used in the electronics industry, the system comprising polysilanes, silicon oxide, silicon nitride, and the like.
Cooperation with major multinational electronics and information industry, reflecting its focus on the positive development of the silicon compound into silicon as raw materials for the semiconductor industry.
3.2 organic light emitting material
According to reports, research and development of organic light emitting material also included studies of silicone materials. Such as durable and efficient field carbazole containing polyorganosiloxane electroluminescent device; there are luminescent (greenish / yellow spectrum) of hexamethyldisiloxane plasma deposition film; silylated derivative of anthracene as the light compound, the main fluorescent emitter, the electron transporting materials, can be made FET, organic thin film transistors, organic integrated circuits, organic solar cells, organic light emitting devices.
Second, the personal care products industry
Personal care products in the cosmetics market is a major branch of the world cosmetics market worth 80 to 10 billion US dollars, an annual growth rate of 4% to 5%, China, India and other developing countries, up to 10 to 20% or even higher. The industry, the application of silicone in the 1950s began, in the 1970s, colorless, transparent, low volatility is used as the beginning of the ring body antiperspirant, after the silicone is used extensively for skin care, cosmetics, sunscreen lotion, shampoo and hair care products and the like.
Currently used in the cosmetic industry is mainly (organic) modified silicone, silicone elastomer blends the like, including all types of silicone oil, silicone elastomers, silicone acrylate copolymers, silicone polyether is growing rapidly . Current annual personal care industry demand for raw materials needed for silicone over 20,000 t, which accounted for 18% of silicone oil. According to statistics, in 2003 the United States toiletries silicone raw materials market is about $ 315 million in 2008 will grow to $ 459 million, allegedly in 2013 will increase to $ 653 million.
Silicone materials have become indispensable basis for innovative cosmetic, for the day of production. It is reported that in 1985, 28 percent of new cosmetic products using silicone, this data 2004 has doubled. There are companies in the cosmetic active ingredients such as vitamin A, palmitate, etc. made of silicone nm level capsules for cosmetics factory directly, allegedly such capsules at 40 ℃ stable for three months, without capsule of the only stable one month; silicone rubber powder coated silica can hide wrinkles and can control sebum; via functional silicone has good soaping resistance, soft, shiny sticky film on the skin ; silicone polyether block polymers can be made into a longer shelf-emulsions, as create new varieties of cosmetics to provide greater choice.
Major multinational companies in the industry are optimistic about the day of the market, some companies invest in new personal care center. The personal care products as a future development strategy, its research and development focused on the functional aspects of gel, liquid and resin.
1. permeability good silicone emulsion
Silicone emulsion is an important variety of silicone chemistry in daily use, the existing skin care products focused on the development and increase of skin adhesion and film strength, but due to poor ventilation caused by allergies and skin moist, will slow wound healing or damage caused by limited use.
Japan developed a synthesis of advanced technology silicone and acrylic core / shell non-aqueous silicone emulsion, its transparency, the alleged skin irritation, sweating and allergic reactions are very small. Can improve skin adhesion and water resistance, and breathability closely to overcome the shortcomings of the poor, but also for the pharmaceutical industry.
2. Surfactant
Branched polyether-modified silicone surfactant, the main chain of silicone, an alkyl group and polyether branched soluble cosmetics mineral oil, isopropyl alcohol, ethanol, propylene glycol, 1, 1,3-butanediol, glycerol, etc. partially soluble.
3. Premix
For ease of use, companies will have to make a water-soluble silicone oil, silicone oil with good dispersion of nanoparticles in cosmetics production process, its just with a preservative, fungicide mix can become a colorless, transparent, additional high value cosmetics.
4. Mask
Silicone rubber powder produced with a certain amount of facial mask can improve blood circulation, such mask each commodity price of $ dozens.
5. The crosslinked silicone particles
Small particles of one spherical silicone crosslinking by anti-agglomeration effect is being used in cosmetics, it is based on a tri-functional monomers methyl hydrolysis, polycondensation, good mobility, chemical stability and heat resistance, the particle size range <1 ~ 12 μ m, narrow particle size distribution, particle size and stirring speed reaction time, pH, temperature and concentration and so on.
6. The long-chain alkyl silicone oil
Long chain alkyl silicone oil has excellent lubricity, mobility, non-irritating and good compatibility, compatibility, hydrophobic permeability, high refractive index, skin irritation, harmless, have excellent surface coverage and pigment dispersion sex, personal toiletries, cosmetics also applied.
Third, life sciences
1. The active substance
Xi Lachuan former Soviet scholars have biological activity; existing reports that some silanol bactericidal effect; one kind triazolopyrimidine have microbicidal activity, in particular fungicidal activity.
2. Drug Synthesis
Group protecting agent trimethylchlorosilane as a temporary synthetic drug has a long history in the market currently triethylchlorosilane and trimethylsilyl iodide, also have needs. Triethylchlorosilane market price of 170,000 yuan per ton (170 yuan per gram).
Positive organic silicon compound directly into the composition of drugs. It is reported that the silicone can be used for the synthesis of unsaturated deoxynucleoside treat diseases of cell proliferation; promoting a new synthesis of silicon-containing compound natural bone regeneration; glycopeptide antibiotic in the synthesis of silicon should be introduced; and magnetic poly silicone - IPN composite polyvinyl alcohol (ferromagnetic its derivatives) covalently immobilized antigen is used as a carrier and the like; silicon-containing compound having a mercapto lipophilic, related drugs penetrate the intestinal wall, cell membrane, thus improving treatment effect.
In addition, silicon tetrachloride as raw material made of nanoparticles under UV irradiation can release reactive oxygen used to treat tumors.
3. medical equipment and implants
The medical field has been a great demand for silicone materials, mainly for the manufacture of adhesives, silicone tube, catheter, shunt branch, airbags, medical device lubrication.
It is well known breast implant issue, the FDA has agreed to study four years after continued use. According to statistics, in 2005, breast implant products accounted for approximately $ 30 million on $ 195 million of medical silicone products market in 2015, which will account for about $ 80 million from about $ 370 million of medical silicone products market .
Ordinary contact lenses oxygen impermeable, non-absorbent, wearing inconvenience. Now, with the development of silicone hydrogel contact lenses but also by absorbing oxygen, without a day removed from the eyes, can already be worn continuously for 15 days, some 30 days. It is expected that by 2009, such a contact lens occupies two-thirds of sales in the US market. These gels are formed using the new silicon-based monomer, the end groups are polymerizable cationic hydrophilic groups.
In terms of medical materials, will replace traditional silicone can cause allergies or materials do not meet environmental requirements, such as latex, PVC-made medical materials, it has become a trend.
In the automotive industry, but also a large number of silicone applications. Such as automobile airbags are coated with silicone rubber; high fever and had to adapt to the environment of fuel, the automotive industry used for the inner layer of silicone rubber and fluorine-fiber-reinforced polyamide outer layer of silicone rubber, heat-resistant, excellent formability composite rubber tube; silicone oil use in the automotive industry is also very wide.
First, the microelectronics industry
Silicone material due to excellent heat resistance, electrical properties, has long been in the electronics industry to a two-component RTV silicone rubber form as potting, encapsulation materials to use. Thereafter, the one-component RTV silicone rubber and silicone rubber molding and processing electronics have become the new favorite. Now, with the development of the electronics industry, in addition to perfusion encapsulating material, there are a variety of organic silicon monomer and fine chemicals, specialty silicones become a key material in the electronics industry.
It is reported that in 2010 the demand for electronic products silicone materials will account for 18% of the total amount of organic silicon, silicon gel market average annual growth rate of 8.3%. Another reported that the United States, the Japanese electronics silicone material requirements at annual rates of 4.7%, 6.4%, market size in 2010 will reach $ 3.7 billion, respectively, $ 380 million,
1. coating, perfusion, encapsulation material
1.1 light emitting diode package
Currently, the use of energy-saving light-emitting diode (LED) as an important social saving measures become Public Interest, which can replace incandescent lamps, can be used in car headlights lighting, energy efficiency has an important significance, development prospects. Bonded light emitting diode, packaging, coating or encapsulation is inseparable from silicone materials.
High-brightness light-emitting diodes are also widely used in liquid crystal display backlighting, huge growth potential. Its high demands on packaging materials, not only requires transparent, no color, good light efficiency, but also requires good heat dissipation, safe, and reliable. General epoxy resin will heat yellow, can not meet the high brightness light-emitting diode packaging requirements. The silicone material of the optical characteristics, and more than 90% light transmittance, weather, heat, extreme heat non-yellowing, can absorb impact, good adhesion, flexibility, and the two liquid components are mixed no bubbles, no solvents, environmental protection, compliance with packaging requirements. In recent years, multinational companies have launched a variety of class encapsulation material and the adhesive material, press material forms a gel-type partakers, elastomeric, resin-based (optical lenses), also have different hardness (low, medium, high) series , curing methods, there are room temperature curing two-component, two-component heat curing type. Many products high refractive index (1.53), on the 400 nm wavelength light permeable than 90%.
Some companies focus on fast-growing LED market, it launched a high-viscosity, high purity and moisture resistant, thermally stable silicone sealant. There has developed a dedicated LED two-component liquid silicone high refractive index, high hardness silicone resin, filling and capping completed together. There is a special glue for packaging LED package, transparent, sealed with a thickness of several vinyl-containing polysiloxane silsesquioxane (made of vinyl trimethoxy silane agent and other alkyl trimethoxy silane agent) and methyl hydrogen Sihuan body made of heat curing effect again.
1.2 liquid crystal panel thin film transistor (TFT) planarization
The thin film transistor liquid crystal flat panel technology is a hot topic that requires new light-transmitting coating material. Conventional clear coating materials are typically acrylate-based, acrylate-based but will turn yellow when heated, while rear heated silicone material will not yellow, and transparency, durability, coating it with a good contrast LCD panel nor by reason of the liquid crystal alignment irregularities lead to confusion and poor contrast performance impact. Data show that the silicone-based material at a wavelength of 400 nm by 98%, and 88% acrylate.
Due to the thin film transistor liquid crystal flat panel is the hot spot, so companies compete to launch new products, competition is very fierce. One company introduced a heat-resistant, good mechanical strength, low price of a two-component gel, not only for the electronics industry, but also for the automotive, aerospace, communications and other fields.
1.3 Thermal silicon material
Radiating silicone rubber for more research: a thermally conductive material such as for CPU heat generation and heat between the body and the like. Such materials, good heat resistance, long-term stable and good insulation, flame resistance. It can also be used in home appliances, game consoles, cars and electrical appliances.
Radiating ultra-low hardness silicone rubber hardness can be done only 1/10 of the conventional products, high thermal conductivity, good contact with the uneven surface, some varieties of thermal conductivity 2.7 W / mk, thickness of 0.5 ~ 5 mm.
1.4 photoresist
The two companies have co-developed a photoresist containing a large amount of silicon, which is a breakthrough in the photoresist industry. Such resist the two companies use their own unique polymers and co-production of the light-sensitive material, used in the past to solve the pure silicon material will release a gas problem. It alleged that the product is mainly used for 65 nm chips.
In addition, the display can be silicon material for a rechargeable battery comprising an anode and a cathode film, can enhance the battery and safety, this area has been used trimethoxy silane agent having an epoxy group and tetraethoxysilane and polybenzimidazole formed casting.
2. The electronics industry with an organic silicon monomer
For the miniaturization of semiconductor devices, it must do everything possible to reduce the k value, in order to improve the signal processing speed and reduce power consumption. This field using a variety of organic silicon monomer. There are:
2.1 trimethylsilane (CH3) 3SiH
Trimethyl silane monomer (the 3MS) is made of silicon-based low-k (k = 2.7 or 2.2) of the interlayer insulator (ILD) and the diffusion barrier film material, trimethyl silane monomer to the environment harmless, inexpensive. Advanced semiconductor devices low-k interlayer insulating width of 90 nm is mainly used in the manufacture of the device. The company has been carrying out dozens of tons of trimethylsilane scale production.
2.2 polysilazane (PHPS)
Performance polysilazane having a glass, shrinkage, high transparency, heat resistance, smooth, wear-resistant, mainly used in the semiconductor, it can be formed on the semiconductor substrate shallow trench for the semiconductor industry lines 65nm or less, further It can be used for automotive protective coatings, anti-fouling, exterior paint and many other uses. Due to the growing demand and other advanced semiconductor memory device, the amount of rapid growth, the company has polysilazane production capacity in recent years has expanded five times.
2.3 tetramethyl cyclotetrasiloxane
Line width of 90 nm and 65 nm chip production in the low-k material, the former is still widely used (flooding) body is Me3SiH or tetramethyl cyclotetrasiloxane of carbon-doped silicon dioxide. Depositing silicon k tetramethyl cyclotetrasiloxane obtained value of about 3 by the CVD method.
2.4 methyldiethoxysilane
The company has made use diethoxysilane porous low-k material. (Porous diethoxymethylsilane) CVD deposition method using an organic silane dimethyl porogen terpinene (porogen (poro-generating materials) such as α-terpinene (terpinene, terpinene)), the ultraviolet curable through porogen burn holes left, so k values below 2.5. Some companies have used this technology to develop the next generation of chips 32 nm, it is expected to launch the product in 2009.
2.5 poly-silicon silsesquioxane (POSS)
Poly silicon silsesquioxane or poly silicon, said polyhedral cage silsesquioxane (RSiO1.5) n is a kind of natural material category "nano" organic - inorganic hybrids. Poly silicon silsesquioxane in the Si-Si distance of ~ 0.5 nm; R-R distance of ~ 1.5 nm. The characteristics of such a compound is no low molecular weight material released, environmentally friendly, there are solid, but also liquid.
Such poly-silicon polyhedral silsesquioxane in the last century had developed many uses, it can be added to the polymer to improve the heat resistance and the like viscoelastic polymer, has subsequently mixed with the polyester, the melting point of the polyester , Tg, flexural modulus and have improved strength.
For its research and development is still in the ascendant, this is because the cage silsesquioxane silicone polymer molecular structure of the R groups can be arbitrarily changed according to performance requirements, such as silicon T8- silsesquioxane containing hydroxyl groups can be used as thermoplastics change agent, intermediate insulating layer, sealants, coatings and the like. Poly-silicon-containing cage silsesquioxane and phenyl may be made of polycarbonate composite, to maintain transparency, but also improve the mechanical strength. Nitrobenzene containing titanium cage silsesquioxane poly silicon can be used as a catalyst of PET. Hydroxyl-containing cage-type poly-silicon silsesquioxane can also be seen as a highly functional polyols, it can be used as a structural unit of the polymer.
Poly silicon clathrate silsesquioxane is a class in electronics and other fields have great prospects of chemicals. For example: In order to produce smaller chips, the material used comprising polymethyl silsesquioxane silicone, and poly alkyl hydrogen silsesquioxane. After the general added pore-forming material as the value of k can be reduced to 2.2; poly silicon hydrogen silsesquioxane can be made ultra resolve photoresist.
Currently marketed by a Japanese company, the United States developed the Q8 series (Q1 ~ Q8) poly silicon silsesquioxane, can make LED packaging materials, photoresists, etc., in Japan, the price per 100 grams of tens of thousands of yen (hundreds USD). The company expects 2010 sales to reach 500 million yen (about US $ 5 million), enough to explain its role.
3. The development of new trends
3.1 silicon carbide
Some multinationals are focused on research of silicon carbide (SiC) material, and commercializing, wide bandgap devices such materials is an important material that can be used in radar, handset manufacturers, etc., will become the next-generation power semiconductor device material. The main raw material is a silane. Monosilane already used in the electronics industry, the system comprising polysilanes, silicon oxide, silicon nitride, and the like.
Cooperation with major multinational electronics and information industry, reflecting its focus on the positive development of the silicon compound into silicon as raw materials for the semiconductor industry.
3.2 organic light emitting material
According to reports, research and development of organic light emitting material also included studies of silicone materials. Such as durable and efficient field carbazole containing polyorganosiloxane electroluminescent device; there are luminescent (greenish / yellow spectrum) of hexamethyldisiloxane plasma deposition film; silylated derivative of anthracene as the light compound, the main fluorescent emitter, the electron transporting materials, can be made FET, organic thin film transistors, organic integrated circuits, organic solar cells, organic light emitting devices.
Second, the personal care products industry
Personal care products in the cosmetics market is a major branch of the world cosmetics market worth 80 to 10 billion US dollars, an annual growth rate of 4% to 5%, China, India and other developing countries, up to 10 to 20% or even higher. The industry, the application of silicone in the 1950s began, in the 1970s, colorless, transparent, low volatility is used as the beginning of the ring body antiperspirant, after the silicone is used extensively for skin care, cosmetics, sunscreen lotion, shampoo and hair care products and the like.
Currently used in the cosmetic industry is mainly (organic) modified silicone, silicone elastomer blends the like, including all types of silicone oil, silicone elastomers, silicone acrylate copolymers, silicone polyether is growing rapidly . Current annual personal care industry demand for raw materials needed for silicone over 20,000 t, which accounted for 18% of silicone oil. According to statistics, in 2003 the United States toiletries silicone raw materials market is about $ 315 million in 2008 will grow to $ 459 million, allegedly in 2013 will increase to $ 653 million.
Silicone materials have become indispensable basis for innovative cosmetic, for the day of production. It is reported that in 1985, 28 percent of new cosmetic products using silicone, this data 2004 has doubled. There are companies in the cosmetic active ingredients such as vitamin A, palmitate, etc. made of silicone nm level capsules for cosmetics factory directly, allegedly such capsules at 40 ℃ stable for three months, without capsule of the only stable one month; silicone rubber powder coated silica can hide wrinkles and can control sebum; via functional silicone has good soaping resistance, soft, shiny sticky film on the skin ; silicone polyether block polymers can be made into a longer shelf-emulsions, as create new varieties of cosmetics to provide greater choice.
Major multinational companies in the industry are optimistic about the day of the market, some companies invest in new personal care center. The personal care products as a future development strategy, its research and development focused on the functional aspects of gel, liquid and resin.
1. permeability good silicone emulsion
Silicone emulsion is an important variety of silicone chemistry in daily use, the existing skin care products focused on the development and increase of skin adhesion and film strength, but due to poor ventilation caused by allergies and skin moist, will slow wound healing or damage caused by limited use.
Japan developed a synthesis of advanced technology silicone and acrylic core / shell non-aqueous silicone emulsion, its transparency, the alleged skin irritation, sweating and allergic reactions are very small. Can improve skin adhesion and water resistance, and breathability closely to overcome the shortcomings of the poor, but also for the pharmaceutical industry.
2. Surfactant
Branched polyether-modified silicone surfactant, the main chain of silicone, an alkyl group and polyether branched soluble cosmetics mineral oil, isopropyl alcohol, ethanol, propylene glycol, 1, 1,3-butanediol, glycerol, etc. partially soluble.
3. Premix
For ease of use, companies will have to make a water-soluble silicone oil, silicone oil with good dispersion of nanoparticles in cosmetics production process, its just with a preservative, fungicide mix can become a colorless, transparent, additional high value cosmetics.
4. Mask
Silicone rubber powder produced with a certain amount of facial mask can improve blood circulation, such mask each commodity price of $ dozens.
5. The crosslinked silicone particles
Small particles of one spherical silicone crosslinking by anti-agglomeration effect is being used in cosmetics, it is based on a tri-functional monomers methyl hydrolysis, polycondensation, good mobility, chemical stability and heat resistance, the particle size range <1 ~ 12 μ m, narrow particle size distribution, particle size and stirring speed reaction time, pH, temperature and concentration and so on.
6. The long-chain alkyl silicone oil
Long chain alkyl silicone oil has excellent lubricity, mobility, non-irritating and good compatibility, compatibility, hydrophobic permeability, high refractive index, skin irritation, harmless, have excellent surface coverage and pigment dispersion sex, personal toiletries, cosmetics also applied.
Third, life sciences
1. The active substance
Xi Lachuan former Soviet scholars have biological activity; existing reports that some silanol bactericidal effect; one kind triazolopyrimidine have microbicidal activity, in particular fungicidal activity.
2. Drug Synthesis
Group protecting agent trimethylchlorosilane as a temporary synthetic drug has a long history in the market currently triethylchlorosilane and trimethylsilyl iodide, also have needs. Triethylchlorosilane market price of 170,000 yuan per ton (170 yuan per gram).
Positive organic silicon compound directly into the composition of drugs. It is reported that the silicone can be used for the synthesis of unsaturated deoxynucleoside treat diseases of cell proliferation; promoting a new synthesis of silicon-containing compound natural bone regeneration; glycopeptide antibiotic in the synthesis of silicon should be introduced; and magnetic poly silicone - IPN composite polyvinyl alcohol (ferromagnetic its derivatives) covalently immobilized antigen is used as a carrier and the like; silicon-containing compound having a mercapto lipophilic, related drugs penetrate the intestinal wall, cell membrane, thus improving treatment effect.
In addition, silicon tetrachloride as raw material made of nanoparticles under UV irradiation can release reactive oxygen used to treat tumors.
3. medical equipment and implants
The medical field has been a great demand for silicone materials, mainly for the manufacture of adhesives, silicone tube, catheter, shunt branch, airbags, medical device lubrication.
It is well known breast implant issue, the FDA has agreed to study four years after continued use. According to statistics, in 2005, breast implant products accounted for approximately $ 30 million on $ 195 million of medical silicone products market in 2015, which will account for about $ 80 million from about $ 370 million of medical silicone products market .
Ordinary contact lenses oxygen impermeable, non-absorbent, wearing inconvenience. Now, with the development of silicone hydrogel contact lenses but also by absorbing oxygen, without a day removed from the eyes, can already be worn continuously for 15 days, some 30 days. It is expected that by 2009, such a contact lens occupies two-thirds of sales in the US market. These gels are formed using the new silicon-based monomer, the end groups are polymerizable cationic hydrophilic groups.
In terms of medical materials, will replace traditional silicone can cause allergies or materials do not meet environmental requirements, such as latex, PVC-made medical materials, it has become a trend.
In the automotive industry, but also a large number of silicone applications. Such as automobile airbags are coated with silicone rubber; high fever and had to adapt to the environment of fuel, the automotive industry used for the inner layer of silicone rubber and fluorine-fiber-reinforced polyamide outer layer of silicone rubber, heat-resistant, excellent formability composite rubber tube; silicone oil use in the automotive industry is also very wide.
