News Details
Cryogenic plasticizer
2017-12-23 11:38:32
Cryogenic plasticizer
For the application of low temperature flexibility or improvement of low temperature fracture resistance, there are two ways to select low temperature plasticizer: one is the use of o-benzoic acid two, two is straight chain alcohol, the other is the branched chain or straight chain alcohol ester of aliphatic acid.
In a 50 DINP formula, when two C9 straight chain alkyl ester with a phthalate two formic acid (e.g. L9P) instead of equal numbers, shore A hardness performance slightly improved, decreased from 84 to 82; according to the determination, the brittle temperature of Tb decreased by 11 DEG C, so cold improved flexibility.
If the straight chain C9~C11 two alkyl ester of o-benzoic acid is used (for example, L911P) to replace the same number of DINP, the hardness will increase slightly, and the brittleness temperature will also increase correspondingly.
The main advantage of using L911P products at this time is to reduce the volatility, improve the neutral energy in the fogging test, and improve the durability in the accelerated aging study.
For the low temperature plasticizer based on aliphatic dicarboxylic ester, the two most commonly used products are adipic acid two -2- ethylhexyl ester (DEHA) and adipic acid two nonyl ester (DINA). The two adipate hypothermic plasticizers could reduce the Tb of the DINP formula by about 30 degrees C. The efficiency of DEHA and DINA is better than that of DINP, but the volatility of DEHA is quite high, and it is easy to migrate quickly.
Adipate two (2- ethyl hexyl) ester is a colorless transparent oil like liquid with a slight odor. It is a good cryogenic plasticizer. High plasticizing efficiency can give good soft, soft and light resistance to the products.
A colorless, transparent, oily liquid with a slight odor. Insoluble in water, dissolved in ethanol, ether, acetone, acetic acid and other organic solvents.
Adipic acid two (2- ethylhexyl) ester is a good low-temperature plasticizer for PVC, polystyrene, nitrocellulose and ethyl cellulose. High plasticizing efficiency can give good soft, soft and light resistance to the products. But the volatility is large, water resistance, resistance to mobility and electrical insulation are poor.
The two (2- ethylhexyl) adipate is volatile, and there are still some deficiencies in water resistance, mobility, electrical insulation and so on. In addition, it is also used for rubber softeners and synthetic lubricants. Adipate two (2- ethyl hexyl) ester is often used with two octyl benzoate.
Adipic acid two (2- ethyl hexyl) ester was directly esterified by adipic acid and 2- ethyl hexanol (neutralized by sulfuric acid or non acid catalyst), neutralized, washed, dealcoholated and pressed filter. Stored in a cool, ventilated storeroom. Stay away from fire and heat. Prevent direct sunlight.
The basic information of two octyl terephthalate (plasticizer DOTP)
Chinese Name: two octyl terephthalate
Synonyms: two Chinese terephthalate (2- ethylhexyl) ester; dioctyl terephthalate two; terephthalic acid two 1,4- benzene carboxylic acid isooctyl ester; two bis (2- ethylhexyl) ester; terephthalic acid two (2- ethylhexyl) ester; dioctyl terephthalate (DOTP); two double 2= ethylhexyl terephthalate; bis (2- ethylhexyl) terephthalic acid, plasticizer DOTP
English Name: Dioctyl terephthalate
English synonyms are: Di- (2-Ethylhexyl) Terephthalate; Di (2Ethylhexyl) Terephthalate; Kodaflexdotp; Terephthalicacid, Bis (2-Ethylhexyl) Ester; Bis;; ";"
CAS: 6422-86-2
Molecular formula: C24H38O4
Molecular weight: 390.56
EINECS: 229-176
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.
Adipic acid two (2- ethyl ester); adipic acid two (2- ethylhexyl) ester, [molecular weight or atomic weight 370.58], [0.922] density (25 DEG C), melting point (c)] [-67.8] [(c), the boiling point of 335; 214 (670 PA), [(c)] flash point 192, [viscosity of mPa? S (20 C) 14], [1.4474] refractive index, flash point of 196 DEG C, the viscosity of 13.7 MPa (20 DEG C) seconds.
Two iso - nonyl adipate is a chemical substance whose molecular formula is C24H46O4. Another way to improve low temperature performance is to use low temperature plasticizers, such as adipic acid, two -2- ethylhexyl ester (DEHA) or adipic two ISO nonyl ester (DINA) as auxiliary plasticizers and main plasticizers. For example, replacing 8 copies of DINP in the above formula with 7 copies of DINA will reduce Tb to -36 C and keep the hardness of 84.
The main effect of plasticizer is weakened between polymer molecules price for health, namely Fan Dehua force, thereby increasing the polymer chain mobility, reduces the crystallinity of the polymer chains, which increased the plastic polymer, the polymer showed hardness, modulus, softening temperature and brittleness temperature decreased, and elongation and improve the flexibility and flexibility.
Plastic plasticizer can be divided into two types according to its function, namely, internal plasticizer and external plasticizer.
The internal plasticizer is actually a part of the polymer. The general internal plasticizer is the second monomer introduced in the polymerization process of the polymer. Because of the second monomers in the molecular structure of the polymer, the polymer chains have lower isotacticity, which reduce the crystallinity of polymer chain. For example, the vinyl chloride vinyl ester copolymer is more soft than the vinyl chloride homopolymer. The internal plasticizer has a narrow range of use temperature and must be added to the polymerization process, so the internal plasticizer is less used.
An external plasticizer is a low molecular weight compound or polymer that is added to the polymer that needs to be plasticized, which can increase the plasticity of the polymer. Outside the plasticizer is a kind of solid high boiling point, difficult volatile liquid or low melting point, and most of them are esters of organic compounds. Usually, they do not react with polymers. The interaction with polymers is mainly due to swelling at elevated temperatures, forming a solid solution with polymers. The external plasticizer has more comprehensive performance and convenient production and use, and is widely used. Generally speaking, plasticizers are external plasticizers. The adjacent benzene two formic acid two ester (DOP) and dibutyl phthalate (DBP) are outside the plasticizer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
For the application of low temperature flexibility or improvement of low temperature fracture resistance, there are two ways to select low temperature plasticizer: one is the use of o-benzoic acid two, two is straight chain alcohol, the other is the branched chain or straight chain alcohol ester of aliphatic acid.
In a 50 DINP formula, when two C9 straight chain alkyl ester with a phthalate two formic acid (e.g. L9P) instead of equal numbers, shore A hardness performance slightly improved, decreased from 84 to 82; according to the determination, the brittle temperature of Tb decreased by 11 DEG C, so cold improved flexibility.
If the straight chain C9~C11 two alkyl ester of o-benzoic acid is used (for example, L911P) to replace the same number of DINP, the hardness will increase slightly, and the brittleness temperature will also increase correspondingly.
The main advantage of using L911P products at this time is to reduce the volatility, improve the neutral energy in the fogging test, and improve the durability in the accelerated aging study.
For the low temperature plasticizer based on aliphatic dicarboxylic ester, the two most commonly used products are adipic acid two -2- ethylhexyl ester (DEHA) and adipic acid two nonyl ester (DINA). The two adipate hypothermic plasticizers could reduce the Tb of the DINP formula by about 30 degrees C. The efficiency of DEHA and DINA is better than that of DINP, but the volatility of DEHA is quite high, and it is easy to migrate quickly.
Adipate two (2- ethyl hexyl) ester is a colorless transparent oil like liquid with a slight odor. It is a good cryogenic plasticizer. High plasticizing efficiency can give good soft, soft and light resistance to the products.
A colorless, transparent, oily liquid with a slight odor. Insoluble in water, dissolved in ethanol, ether, acetone, acetic acid and other organic solvents.
Adipic acid two (2- ethylhexyl) ester is a good low-temperature plasticizer for PVC, polystyrene, nitrocellulose and ethyl cellulose. High plasticizing efficiency can give good soft, soft and light resistance to the products. But the volatility is large, water resistance, resistance to mobility and electrical insulation are poor.
The two (2- ethylhexyl) adipate is volatile, and there are still some deficiencies in water resistance, mobility, electrical insulation and so on. In addition, it is also used for rubber softeners and synthetic lubricants. Adipate two (2- ethyl hexyl) ester is often used with two octyl benzoate.
Adipic acid two (2- ethyl hexyl) ester was directly esterified by adipic acid and 2- ethyl hexanol (neutralized by sulfuric acid or non acid catalyst), neutralized, washed, dealcoholated and pressed filter. Stored in a cool, ventilated storeroom. Stay away from fire and heat. Prevent direct sunlight.
The basic information of two octyl terephthalate (plasticizer DOTP)
Chinese Name: two octyl terephthalate
Synonyms: two Chinese terephthalate (2- ethylhexyl) ester; dioctyl terephthalate two; terephthalic acid two 1,4- benzene carboxylic acid isooctyl ester; two bis (2- ethylhexyl) ester; terephthalic acid two (2- ethylhexyl) ester; dioctyl terephthalate (DOTP); two double 2= ethylhexyl terephthalate; bis (2- ethylhexyl) terephthalic acid, plasticizer DOTP
English Name: Dioctyl terephthalate
English synonyms are: Di- (2-Ethylhexyl) Terephthalate; Di (2Ethylhexyl) Terephthalate; Kodaflexdotp; Terephthalicacid, Bis (2-Ethylhexyl) Ester; Bis;; ";"
CAS: 6422-86-2
Molecular formula: C24H38O4
Molecular weight: 390.56
EINECS: 229-176
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.
Adipic acid two (2- ethyl ester); adipic acid two (2- ethylhexyl) ester, [molecular weight or atomic weight 370.58], [0.922] density (25 DEG C), melting point (c)] [-67.8] [(c), the boiling point of 335; 214 (670 PA), [(c)] flash point 192, [viscosity of mPa? S (20 C) 14], [1.4474] refractive index, flash point of 196 DEG C, the viscosity of 13.7 MPa (20 DEG C) seconds.
Two iso - nonyl adipate is a chemical substance whose molecular formula is C24H46O4. Another way to improve low temperature performance is to use low temperature plasticizers, such as adipic acid, two -2- ethylhexyl ester (DEHA) or adipic two ISO nonyl ester (DINA) as auxiliary plasticizers and main plasticizers. For example, replacing 8 copies of DINP in the above formula with 7 copies of DINA will reduce Tb to -36 C and keep the hardness of 84.
The main effect of plasticizer is weakened between polymer molecules price for health, namely Fan Dehua force, thereby increasing the polymer chain mobility, reduces the crystallinity of the polymer chains, which increased the plastic polymer, the polymer showed hardness, modulus, softening temperature and brittleness temperature decreased, and elongation and improve the flexibility and flexibility.
Plastic plasticizer can be divided into two types according to its function, namely, internal plasticizer and external plasticizer.
The internal plasticizer is actually a part of the polymer. The general internal plasticizer is the second monomer introduced in the polymerization process of the polymer. Because of the second monomers in the molecular structure of the polymer, the polymer chains have lower isotacticity, which reduce the crystallinity of polymer chain. For example, the vinyl chloride vinyl ester copolymer is more soft than the vinyl chloride homopolymer. The internal plasticizer has a narrow range of use temperature and must be added to the polymerization process, so the internal plasticizer is less used.
An external plasticizer is a low molecular weight compound or polymer that is added to the polymer that needs to be plasticized, which can increase the plasticity of the polymer. Outside the plasticizer is a kind of solid high boiling point, difficult volatile liquid or low melting point, and most of them are esters of organic compounds. Usually, they do not react with polymers. The interaction with polymers is mainly due to swelling at elevated temperatures, forming a solid solution with polymers. The external plasticizer has more comprehensive performance and convenient production and use, and is widely used. Generally speaking, plasticizers are external plasticizers. The adjacent benzene two formic acid two ester (DOP) and dibutyl phthalate (DBP) are outside the plasticizer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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