News Details
Plasticizers used for PVC
2017-12-21 16:12:58
Plasticizers used for PVC
The use of PVC plasticizer of many types, and continues to increase, the increased use of PVC plasticizer used in most of the adjacent benzene two formic acid esters, because of low cost, good comprehensive performance; followed by glycol and benzene two formic acid two ISO octyl esters and phosphate etc..
Our country is rich in resources of chlorinated paraffin wax, mature production technology, the development of soft high chlorine content of chlorinated paraffin; China's high carbon alcohol sufficient raw materials should be developed, plasticized high efficiency, heat resistance, weather resistance, low volatility, health and transparency than two formic acid and two octyl phthalate (DOP) of the adjacent benzene two formic acid octyl decyl ester (? 810 ester) and other varieties.
China's ethylene glycol production has more than 6O million t/a, two glycol polyol by-product of diethylene glycol ester of benzoic acid should be developed in low price, low volatility and low toxicity and cold resistant varieties; recycling of waste polymer by using polyester silk, terephthalic acid isooctyl ester (DOTP), two volatile, electrical properties better than two formic acid and two octyl phthalate (DOP), low temperature resistance, anti extraction, heat resistance, is an ideal plasticizer.
Different plasticizers used in PVC have different effects on the performance of the products. O-phenyl two formic acid esters are mostly used in the presence of two phenyl octyl two carboxylate (DOP) and two phthalic acid two isooctyl ester (DIOP), which have more comprehensive properties because of their compatibility with PVC, which can meet the requirements of most general products.
In industry, DOP is often used as a standard to measure the plasticizing efficiency of various plasticizers. Adipic acid, two octyl ester (DOA), two octyl ester sebacate (DOS) and azelaic acid ester, have good low temperature resistance, which can significantly improve the cold hardiness of products. However, the compatibility between these 3 plasticizers and PVC is poor, so they can only be used as secondary plasticizers.
Pentaerythritol esters have good heat resistance and aging resistance. They are usually used to produce high temperature (1100C) insulated wires and cables. They are often shared with other plasticizers. Two benzyl phosphate (DPOP) is nontoxic and is used in the manufacture of nontoxic products (such as food bags, blood transfusion bags, etc.).
Reoplex in adipic acid propylene glycol polyester, although the plasticizing efficiency is poor, high viscosity, and low temperature processing is not good, but low volatile, mobility, oil resistant and soapy water out, heat resistance and durability properties of good plasticizer, mainly used in automobile products. The long-term use of indoor products of wire and cable, refrigerators and abroad, is widely used, the development of a kind of fast plasticizer, and once solved the low temperature resistance and processability, will be more widely used.
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.
Packing method:
200KG/ net galvanized steel drum (a small pallet loaded 16 tons), 1000KG/IB (a small barrel loaded 18 tons or 23 tons of ISOTANK).
In order to meet the demand of the main performance of the product, in order to reduce the cost and solve the main plasticizer and the demand for some of its defects, often used plasticizers and extenders, for example: in PVC plastics is often added two yuan of fatty acid octyl, chlorinated paraffin and petroleum sulfonate ester.
Due to the different properties of various plasticizers, one or two plasticizers alone can not meet the comprehensive performance requirements. In order to complement each other, mixing plasticizers are often used in actual production. There are many ways to add plasticizers into resins, but usually at a certain temperature, they are evenly dispersed in resin by forced mechanical mixing.
The ideal plasticizer should have the following properties:
(1) the compatibility with the polymer is good. It can be well mixed with the polymer during the process of processing, and the plasticizer is not precipitated when the product is used.
(2) low volatility.
(3) the heat resistance is good, and the plasticizer does not break down, discoloration or performance change during the process of processing or use.
(4) good light stability and no harmful reaction with other additives or resins during processing.
(5) good low temperature resistance and good softness of PVC plastic at low temperature.
(6) migration and exudation are small. Migration and exudation of plasticizers are properties of plasticizers exuding from plastic or some plasticizers transferred to other substances in contact with them.
(7) it is not easy to extract water, soapy water, oil, oil and solvent.
(8) the flame resistance is good, and it is not easy to burn.
(9) the effect of anti bacteria and mould is strong.
(10) good electrical insulation performance.
(11) tasteless, colorless and nontoxic.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The use of PVC plasticizer of many types, and continues to increase, the increased use of PVC plasticizer used in most of the adjacent benzene two formic acid esters, because of low cost, good comprehensive performance; followed by glycol and benzene two formic acid two ISO octyl esters and phosphate etc..
Our country is rich in resources of chlorinated paraffin wax, mature production technology, the development of soft high chlorine content of chlorinated paraffin; China's high carbon alcohol sufficient raw materials should be developed, plasticized high efficiency, heat resistance, weather resistance, low volatility, health and transparency than two formic acid and two octyl phthalate (DOP) of the adjacent benzene two formic acid octyl decyl ester (? 810 ester) and other varieties.
China's ethylene glycol production has more than 6O million t/a, two glycol polyol by-product of diethylene glycol ester of benzoic acid should be developed in low price, low volatility and low toxicity and cold resistant varieties; recycling of waste polymer by using polyester silk, terephthalic acid isooctyl ester (DOTP), two volatile, electrical properties better than two formic acid and two octyl phthalate (DOP), low temperature resistance, anti extraction, heat resistance, is an ideal plasticizer.
Different plasticizers used in PVC have different effects on the performance of the products. O-phenyl two formic acid esters are mostly used in the presence of two phenyl octyl two carboxylate (DOP) and two phthalic acid two isooctyl ester (DIOP), which have more comprehensive properties because of their compatibility with PVC, which can meet the requirements of most general products.
In industry, DOP is often used as a standard to measure the plasticizing efficiency of various plasticizers. Adipic acid, two octyl ester (DOA), two octyl ester sebacate (DOS) and azelaic acid ester, have good low temperature resistance, which can significantly improve the cold hardiness of products. However, the compatibility between these 3 plasticizers and PVC is poor, so they can only be used as secondary plasticizers.
Pentaerythritol esters have good heat resistance and aging resistance. They are usually used to produce high temperature (1100C) insulated wires and cables. They are often shared with other plasticizers. Two benzyl phosphate (DPOP) is nontoxic and is used in the manufacture of nontoxic products (such as food bags, blood transfusion bags, etc.).
Reoplex in adipic acid propylene glycol polyester, although the plasticizing efficiency is poor, high viscosity, and low temperature processing is not good, but low volatile, mobility, oil resistant and soapy water out, heat resistance and durability properties of good plasticizer, mainly used in automobile products. The long-term use of indoor products of wire and cable, refrigerators and abroad, is widely used, the development of a kind of fast plasticizer, and once solved the low temperature resistance and processability, will be more widely used.
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.
Packing method:
200KG/ net galvanized steel drum (a small pallet loaded 16 tons), 1000KG/IB (a small barrel loaded 18 tons or 23 tons of ISOTANK).
In order to meet the demand of the main performance of the product, in order to reduce the cost and solve the main plasticizer and the demand for some of its defects, often used plasticizers and extenders, for example: in PVC plastics is often added two yuan of fatty acid octyl, chlorinated paraffin and petroleum sulfonate ester.
Due to the different properties of various plasticizers, one or two plasticizers alone can not meet the comprehensive performance requirements. In order to complement each other, mixing plasticizers are often used in actual production. There are many ways to add plasticizers into resins, but usually at a certain temperature, they are evenly dispersed in resin by forced mechanical mixing.
The ideal plasticizer should have the following properties:
(1) the compatibility with the polymer is good. It can be well mixed with the polymer during the process of processing, and the plasticizer is not precipitated when the product is used.
(2) low volatility.
(3) the heat resistance is good, and the plasticizer does not break down, discoloration or performance change during the process of processing or use.
(4) good light stability and no harmful reaction with other additives or resins during processing.
(5) good low temperature resistance and good softness of PVC plastic at low temperature.
(6) migration and exudation are small. Migration and exudation of plasticizers are properties of plasticizers exuding from plastic or some plasticizers transferred to other substances in contact with them.
(7) it is not easy to extract water, soapy water, oil, oil and solvent.
(8) the flame resistance is good, and it is not easy to burn.
(9) the effect of anti bacteria and mould is strong.
(10) good electrical insulation performance.
(11) tasteless, colorless and nontoxic.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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