News Details
PVC material plasticizer
2017-12-22 11:39:39
PVC material plasticizer
In the broadest sense, plasticizers are a material that, when they are added to another substance, produces a mixture that is easy to handle or is more widely used. The use of water softening clay or oil plasticized bitumen for waterproofing is two examples of early plasticizing system.
The use of plasticizer to improve the polymer began in 1800s, when Hyatt Brothers added camphor into the digestive fiber to increase the latter's formability and reduce brittleness. In PVC, plasticizers were invented in 1920s; the first patent on octanol ester (DOP) as a plasticizer was released in 1933.
In 1943, B.F.Goodrich won the patent for DOP for PVC. There are more than 500 recognized plasticizers, but only 50 to 100 are used for commercial purposes. About 80-90% of all plasticizers is used for PVC. Other end uses of plasticizers include synthetic rubber, cellulose and acrylic acid.
Because a lot of plasticizers are used for PVC, the research focuses on PVC plasticizers, especially o-phthalic acid two esters, which occupy most of PVC plasticizers.
The properties of the plasticizers are the best when the molecules contain both polar and non polar groups. The polar groups help the plasticizers to be confined to the system, and the non polar groups can eliminate the attraction between the polymer chains to produce flexibility. It should be noted that plasticizers are part of the entire final product and thus provide long-term benefits.
Low molecular polar materials have some effect on increasing machinability, but the volatility of plasticizers is a problem. On the other hand, polymer plasticizers better maintain performance at extreme temperatures, but do not offer any benefits in processing.
Many different materials can be used as plasticizers for PVC materials. Most of the common materials are phthalic acid esters of two. This colorless and tasteless liquid can be prepared by a simple reaction of alcohol and phthalic anhydride.
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.
Phthalate plasticizers are the most widely used plasticizers in the world by the reaction of proper alcohols with phthalic anhydride or phthalic acid two formic acid. Although methanol and up to C17 alcohols can be used for the production of phthalate two formate plasticizers, the main plasticizers are C4-C10 alcohols.
Linear alcohols can also be used to produce plasticizers. However, compared with C9-C10 plasticizers, their applications are losing their superiority due to the high cost of ethylene (linear alcohols).
O-phenyl two carboxylic acid two (ethylhexyl) ester (DEHP), also known as two octyl phthalate two formic acid, namely DOP, is produced by the reaction of 2- ethylhexanol (derived from propylene) and O-benzyl two anhydride. Although the impact on health has always been a problem, it is still widely used as a plasticizer because of its plasticizing performance and low cost.
C9 (two ISO nonylphenyl two formate (DINP)) and C10 (two isodecyl o-phenyl two formic acid ester (DPDP)), the heterogeneous o-phthalic two formate plasticizer, is constantly competing with DEHP, especially in various commodity applications. It is generally believed that compared with DEHP, C9 and C10 terephthalate provide a moderate cost / performance advantage.
General phthalate two formates are used for many uses, such as floor, wallpaper, vinyl leather, cable sheath, coated fabric and shoes. Compared with the same molecular weight branched phthalate ester, the linear phthalate ester has lower volatility. They have better effects on low temperature elasticity and light degradation.
So they are used for PVC roof, car interior decoration with antifogging synthetic leather and some car cables. There are many other special-purpose phthalate esters in the production, although the number is much smaller than that of DEHP, DINP or DIDP.
The specific phthalate two formic acid esters produced from low carbon alcohols can be quickly fused. The other special-o-o-benzoic acid two esters contain phenyl BUTYLPHENYL two formate, two ISO eleven alkyl phthalic two formic acid (low volatility), and semilinear and linear ortho benzene two formic acid esters (used in the use of low viscosity plasticizers).
Phthalate two formate was first produced in 1920s, but at that time they were limited in commercial use. However, since 1950s, a large number of phthalates have been consumed in plasticized PVC. Plasticized PVC uses a wide range of applications such as medical tubes, blood bags, footwear, stationery, floor and wallpaper, cable insulation, clothing and toys. In addition, phthalate esters are also used for other non PVC uses such as rubber products, paints, printing inks, adhesives, lubricants and some cosmetics.
Phthalic acid ester is the most commonly used two adjacent benzene two formic acid two ethylhexyl ester (DEHP, also known as the two octyl phthalate two formic acid ester (DOP) two), isodecyl phthalate ester two (DIDP), two different eleven alkyl phthalate two formic acid ester (DINP) and two butyl phthalate two formic acid ester (DBP).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
In the broadest sense, plasticizers are a material that, when they are added to another substance, produces a mixture that is easy to handle or is more widely used. The use of water softening clay or oil plasticized bitumen for waterproofing is two examples of early plasticizing system.
The use of plasticizer to improve the polymer began in 1800s, when Hyatt Brothers added camphor into the digestive fiber to increase the latter's formability and reduce brittleness. In PVC, plasticizers were invented in 1920s; the first patent on octanol ester (DOP) as a plasticizer was released in 1933.
In 1943, B.F.Goodrich won the patent for DOP for PVC. There are more than 500 recognized plasticizers, but only 50 to 100 are used for commercial purposes. About 80-90% of all plasticizers is used for PVC. Other end uses of plasticizers include synthetic rubber, cellulose and acrylic acid.
Because a lot of plasticizers are used for PVC, the research focuses on PVC plasticizers, especially o-phthalic acid two esters, which occupy most of PVC plasticizers.
The properties of the plasticizers are the best when the molecules contain both polar and non polar groups. The polar groups help the plasticizers to be confined to the system, and the non polar groups can eliminate the attraction between the polymer chains to produce flexibility. It should be noted that plasticizers are part of the entire final product and thus provide long-term benefits.
Low molecular polar materials have some effect on increasing machinability, but the volatility of plasticizers is a problem. On the other hand, polymer plasticizers better maintain performance at extreme temperatures, but do not offer any benefits in processing.
Many different materials can be used as plasticizers for PVC materials. Most of the common materials are phthalic acid esters of two. This colorless and tasteless liquid can be prepared by a simple reaction of alcohol and phthalic anhydride.
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.
Phthalate plasticizers are the most widely used plasticizers in the world by the reaction of proper alcohols with phthalic anhydride or phthalic acid two formic acid. Although methanol and up to C17 alcohols can be used for the production of phthalate two formate plasticizers, the main plasticizers are C4-C10 alcohols.
Linear alcohols can also be used to produce plasticizers. However, compared with C9-C10 plasticizers, their applications are losing their superiority due to the high cost of ethylene (linear alcohols).
O-phenyl two carboxylic acid two (ethylhexyl) ester (DEHP), also known as two octyl phthalate two formic acid, namely DOP, is produced by the reaction of 2- ethylhexanol (derived from propylene) and O-benzyl two anhydride. Although the impact on health has always been a problem, it is still widely used as a plasticizer because of its plasticizing performance and low cost.
C9 (two ISO nonylphenyl two formate (DINP)) and C10 (two isodecyl o-phenyl two formic acid ester (DPDP)), the heterogeneous o-phthalic two formate plasticizer, is constantly competing with DEHP, especially in various commodity applications. It is generally believed that compared with DEHP, C9 and C10 terephthalate provide a moderate cost / performance advantage.
General phthalate two formates are used for many uses, such as floor, wallpaper, vinyl leather, cable sheath, coated fabric and shoes. Compared with the same molecular weight branched phthalate ester, the linear phthalate ester has lower volatility. They have better effects on low temperature elasticity and light degradation.
So they are used for PVC roof, car interior decoration with antifogging synthetic leather and some car cables. There are many other special-purpose phthalate esters in the production, although the number is much smaller than that of DEHP, DINP or DIDP.
The specific phthalate two formic acid esters produced from low carbon alcohols can be quickly fused. The other special-o-o-benzoic acid two esters contain phenyl BUTYLPHENYL two formate, two ISO eleven alkyl phthalic two formic acid (low volatility), and semilinear and linear ortho benzene two formic acid esters (used in the use of low viscosity plasticizers).
Phthalate two formate was first produced in 1920s, but at that time they were limited in commercial use. However, since 1950s, a large number of phthalates have been consumed in plasticized PVC. Plasticized PVC uses a wide range of applications such as medical tubes, blood bags, footwear, stationery, floor and wallpaper, cable insulation, clothing and toys. In addition, phthalate esters are also used for other non PVC uses such as rubber products, paints, printing inks, adhesives, lubricants and some cosmetics.
Phthalic acid ester is the most commonly used two adjacent benzene two formic acid two ethylhexyl ester (DEHP, also known as the two octyl phthalate two formic acid ester (DOP) two), isodecyl phthalate ester two (DIDP), two different eleven alkyl phthalate two formic acid ester (DINP) and two butyl phthalate two formic acid ester (DBP).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian