News Details
Multifunctional plasticizer
2017-12-15 11:18:21
Multifunctional plasticizer
The new plastic products needed in domestic multifunctional plasticizer, in order to play a more effective agent "role in aid; should strengthen the research and development of new technologies, new products and new applications, the elimination of backward production methods and varieties, to meet the needs of all kinds of plastic products plasticizer varieties and quality the demand for multi-functional.
The development trend of plastic additives in the world is high efficiency, efficiency, non-toxic or low toxicity, pollution-free plasticizer products and clean industrial production mode. With the progress of science and technology, production enterprises should adjust their product structure and eliminate backward production processes and varieties. Developing and producing non-toxic, cheap and environmentally friendly auxiliaries is the main problem to be solved in plasticizer industry. Government departments should vigorously support enterprises to develop new products, new materials, especially through policy support, to increase research investment efforts, encourage enterprises through scientific research and technological innovation, to solve the problem of implementation of large-scale industrialization as soon as possible, so that China's plasticizer of scientific research and development and application level of catch up with the international advanced level.
We should focus on the development of the following special plasticizer products to meet market demand at home and abroad: three trimellitic acid ester plasticizer, terephthalic acid, diethylene glycol two two octyl phenyl ester, phthalic acid two butyl benzyl phthalate two formic acid and two methoxy ethyl ester of adipic acid, sebacic acid, two - two three, citric acid, citric acid, butyl octyl three citric acid three, citric acid three acetyl butyl octyl, different molecular weight polyester plasticizer, maleic acid, maleic acid ester two butyl two etc..
The plasticizer industry should focus on the development and research of the application field of re materials, such as the recent demand for plasticizer products with good resistance to fouling and mildew at home and abroad. The products are mainly ester compounds with asymmetric molecular structure. Butyl benzyl ortho benzoic acid and benzyl octylbenzoic acid two have large imports. They are mainly used to satisfy the new high-grade wallpaper products, while the domestic industrial products such as two are very small.
The cost is reduced by using non acid catalyst, continuous esterification reaction, or using sulfuric acid as an esterification catalyst. Solid acid catalyst for esterification catalyst is promising, is to concentrate on the development, synthesis of four titanium chloride ion exchange polymer Lewis acid catalyst resin and polymer as carrier and the application of the catalyst in esterification reaction is an important research direction.
Develop a versatile plasticizer. Two ethylhexyl sebacate as lowvolatility cold-resistance plasticizer, is non-toxic, transparent, low viscosity, commonly used in plastic, wire and cable, artificial leather and frozen packaging materials.
The isooctyl glutarate was synthesized from glutaric acid and isooctyl ester from two carboxylic acid and catalyzed by heteropoly acid at Nanchang Normal School of Vocational Technics. The development and utilization of glutaric acid were preliminarily explored in Nanchang Normal School of Vocational Technics.
Two solid catalysts, stannous oxide and QS-6, were used in the synthesis of phthalic acid esters, which solved the problem of producing a large amount of waste water from traditional methods.
Physical and chemical properties of two octyl terephthalate (plasticizer DOTP)
Appearance: transparent and colorless liquid
Boiling point: 400 degrees centigrade
Density: 0.984
Melting point: 30-34 degrees centigrade
Flash point: 238 degrees centigrade
Refractive index: 1.489-1.491
Flash point centigrade 210
Water is less than or equal to 0.03
Acid value is less than 0.1 mgKOH/g
The refractive index is greater than or equal to 1.4900 (20 C)
Color = (platinum cobalt) 30
The ester content% (chromatography) more than 99.5
Density (20 C) g/cm3 0.981-0.985
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
Based on rayon based activated carbon fiber, supported SnO catalyst was prepared for the synthesis of three octyl benzyl Tri (TOTM), which basically realized the cleaning process.
Research on clean production process of industrial plasticizer. With the increasing demand for environmental protection at home and abroad, it is imperative to adopt more new catalysts instead of traditional acidic catalysts. This is of great importance in resource development, energy saving and production cost reduction. At present, the main research is focused on finding new solid catalysts and developing new catalytic processes. Cleaner production technology has become a hot research topic in China, and the breakthrough point is esterification catalyst.
(1) solid superacid catalyst preparation, both from the theoretical exploration, structural characterization, research or industrial applications have made new discoveries, solid super acid because of its unique advantages and broad prospects for industrial applications, has received extensive attention of scholars at home and abroad, has become a hot research for solid acid catalyst. With the deepening of research, the types of catalysts also develop from halogen free Superacid to halogen free solid superacid, single component solid superacid and multi component solid superacid.
(2) the rare earth resources in China are rich, and the use of rare earth oxides as the synthesis DOP catalyst is mainly Gd2O3, Lu2O3 and so on.
(3) solid supported heteropoly acid solid catalyst.
(4) Al2O3 NaOH, LiOH and other composite solid acid catalyst, tetravalent titanium oxide, SnO, ZnO for esterification of DOP, more and more attention.
In order to overcome the shortcomings of the surface migration of PVC products and the precipitation on the surface of products, polymer plasticizer has been developed at home and abroad. For example, the PVC/TPU elastomer obtained by thermoplastic polyurethane (TPU) instead of DOP (TPU is 50%), the tensile strength is 23Mpa, and the elongation at break is 450%. In addition, a soft PVC product with tensile strength of 17Mpa and a breaking elongation of 350% can be obtained by mixing 41% EVA - CO three - copolymer in PVC. The results show that the plasticizing efficiency of the polymer plasticizer is not as good as the low molecular plasticizer, and it is better to use both of the plasticizers and the plasticizer. In recent years, European and American countries have produced a variety of soft PVC products with polymer plasticizer, especially Elvaloy 742.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The new plastic products needed in domestic multifunctional plasticizer, in order to play a more effective agent "role in aid; should strengthen the research and development of new technologies, new products and new applications, the elimination of backward production methods and varieties, to meet the needs of all kinds of plastic products plasticizer varieties and quality the demand for multi-functional.
The development trend of plastic additives in the world is high efficiency, efficiency, non-toxic or low toxicity, pollution-free plasticizer products and clean industrial production mode. With the progress of science and technology, production enterprises should adjust their product structure and eliminate backward production processes and varieties. Developing and producing non-toxic, cheap and environmentally friendly auxiliaries is the main problem to be solved in plasticizer industry. Government departments should vigorously support enterprises to develop new products, new materials, especially through policy support, to increase research investment efforts, encourage enterprises through scientific research and technological innovation, to solve the problem of implementation of large-scale industrialization as soon as possible, so that China's plasticizer of scientific research and development and application level of catch up with the international advanced level.
We should focus on the development of the following special plasticizer products to meet market demand at home and abroad: three trimellitic acid ester plasticizer, terephthalic acid, diethylene glycol two two octyl phenyl ester, phthalic acid two butyl benzyl phthalate two formic acid and two methoxy ethyl ester of adipic acid, sebacic acid, two - two three, citric acid, citric acid, butyl octyl three citric acid three, citric acid three acetyl butyl octyl, different molecular weight polyester plasticizer, maleic acid, maleic acid ester two butyl two etc..
The plasticizer industry should focus on the development and research of the application field of re materials, such as the recent demand for plasticizer products with good resistance to fouling and mildew at home and abroad. The products are mainly ester compounds with asymmetric molecular structure. Butyl benzyl ortho benzoic acid and benzyl octylbenzoic acid two have large imports. They are mainly used to satisfy the new high-grade wallpaper products, while the domestic industrial products such as two are very small.
The cost is reduced by using non acid catalyst, continuous esterification reaction, or using sulfuric acid as an esterification catalyst. Solid acid catalyst for esterification catalyst is promising, is to concentrate on the development, synthesis of four titanium chloride ion exchange polymer Lewis acid catalyst resin and polymer as carrier and the application of the catalyst in esterification reaction is an important research direction.
Develop a versatile plasticizer. Two ethylhexyl sebacate as lowvolatility cold-resistance plasticizer, is non-toxic, transparent, low viscosity, commonly used in plastic, wire and cable, artificial leather and frozen packaging materials.
The isooctyl glutarate was synthesized from glutaric acid and isooctyl ester from two carboxylic acid and catalyzed by heteropoly acid at Nanchang Normal School of Vocational Technics. The development and utilization of glutaric acid were preliminarily explored in Nanchang Normal School of Vocational Technics.
Two solid catalysts, stannous oxide and QS-6, were used in the synthesis of phthalic acid esters, which solved the problem of producing a large amount of waste water from traditional methods.
Physical and chemical properties of two octyl terephthalate (plasticizer DOTP)
Appearance: transparent and colorless liquid
Boiling point: 400 degrees centigrade
Density: 0.984
Melting point: 30-34 degrees centigrade
Flash point: 238 degrees centigrade
Refractive index: 1.489-1.491
Flash point centigrade 210
Water is less than or equal to 0.03
Acid value is less than 0.1 mgKOH/g
The refractive index is greater than or equal to 1.4900 (20 C)
Color = (platinum cobalt) 30
The ester content% (chromatography) more than 99.5
Density (20 C) g/cm3 0.981-0.985
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
Based on rayon based activated carbon fiber, supported SnO catalyst was prepared for the synthesis of three octyl benzyl Tri (TOTM), which basically realized the cleaning process.
Research on clean production process of industrial plasticizer. With the increasing demand for environmental protection at home and abroad, it is imperative to adopt more new catalysts instead of traditional acidic catalysts. This is of great importance in resource development, energy saving and production cost reduction. At present, the main research is focused on finding new solid catalysts and developing new catalytic processes. Cleaner production technology has become a hot research topic in China, and the breakthrough point is esterification catalyst.
(1) solid superacid catalyst preparation, both from the theoretical exploration, structural characterization, research or industrial applications have made new discoveries, solid super acid because of its unique advantages and broad prospects for industrial applications, has received extensive attention of scholars at home and abroad, has become a hot research for solid acid catalyst. With the deepening of research, the types of catalysts also develop from halogen free Superacid to halogen free solid superacid, single component solid superacid and multi component solid superacid.
(2) the rare earth resources in China are rich, and the use of rare earth oxides as the synthesis DOP catalyst is mainly Gd2O3, Lu2O3 and so on.
(3) solid supported heteropoly acid solid catalyst.
(4) Al2O3 NaOH, LiOH and other composite solid acid catalyst, tetravalent titanium oxide, SnO, ZnO for esterification of DOP, more and more attention.
In order to overcome the shortcomings of the surface migration of PVC products and the precipitation on the surface of products, polymer plasticizer has been developed at home and abroad. For example, the PVC/TPU elastomer obtained by thermoplastic polyurethane (TPU) instead of DOP (TPU is 50%), the tensile strength is 23Mpa, and the elongation at break is 450%. In addition, a soft PVC product with tensile strength of 17Mpa and a breaking elongation of 350% can be obtained by mixing 41% EVA - CO three - copolymer in PVC. The results show that the plasticizing efficiency of the polymer plasticizer is not as good as the low molecular plasticizer, and it is better to use both of the plasticizers and the plasticizer. In recent years, European and American countries have produced a variety of soft PVC products with polymer plasticizer, especially Elvaloy 742.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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