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Plasticizers of phthalic acid two formic acid
2017-12-9 16:44:19
Plasticizers of phthalic acid two formic acid
Phthalic acid ester plasticizer two soluble in organic solvents, medium polar substances, high boiling point, low volatility and high lipid solubility, compared with other plasticizers, adjacent benzene two formic acid ester plasticizer has the following advantages: wide applicability, good chemical stability, the production process is simple. Cheap and easily obtained raw materials and low cost; the adjacent benzene two formic acid ester plasticizer phthalic acid esters two disadvantages: plasticizer products in the process of volatile, with exudative and migration in PVC products, a large dose of entering the human body is carcinogenic.
Phthalic acid esters are the most widely used and most used plasticizers, accounting for about 88% of the market share of plasticizers. Phthalic acid ester two is widely used in plastic packaging industry, this kind of compounds in plastic products and plastic molecular miscibility between the two is better, because there is no strict chemical bonding, so by hydrogen bonds and van Edward connected between the two relatively independent of the chemical nature.
As of two phthalic acid ester plasticizer including two formic acid isooctyl phthalate two (DEHP) and dibutyl phthalate (DBP) phthalate two formic acid and two methyl ester (DMP) and two formic acid butyl benzyl phthalate (BBP) etc..
Phthalic acid two formic acid two (2 - ethyl) hexyl ester (DEHP). DEHP, also known as two octyl phthalate (DOP), is the most important phthalate ester, and is the most widely used and largest plasticizer. DEHP is a colorless liquid with almost no taste. It is insoluble in water, soluble in most organic solvents and hydrocarbons, and has good compatibility with polyvinyl chloride, chloroacetate, polystyrene, polymethyl methacrylate and cellulose.
But because in the process of production, DEHP does not polymerized with polymer materials, and its molecular weight is small, so the migration characteristics are quite obvious. It will release from products and enter the environment, and it will do harm to the crowd.
JaneC.Caldwell et al. Put forward that DEHP is a genotoxic carcinogen to rodents, which directly affects the chromosomes, spindles and mitosis of tissues.
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.
Dibutyl phthalate (DBP). DBP is also an important plasticizer in Phthalic two formic acid esters. It is a colorless liquid, slightly soluble in water, and easy to dissolve in organic solvents such as ethanol and ether. It has good low temperature resistance, aging resistance and good plasticity, but its toxicity can not be underestimated. Li Yuanfeng [4] studied the effects of dibutyl phthalate on neurobehavioral development of rats, the mechanism of DBP toxicity is mainly due to the disruption of endocrine function, in vivo and in vitro experiments indicated that DBP has estrogenic and / or anti androgenic activity, and can affect a variety of enzymes activity of steroid synthesis.
When plasticizers are added to the polymer, the interaction between plasticizer molecules, plasticizers and polymer molecules is important. Unless all these interactions (plasticizers and plasticizers, plasticizers and polymers, polymers and polymers) are at the same hour, there is no possibility of plasticizing and anti plasticizing.
1. Vander Ed Levandewali is a weak attraction between molecules and molecules in the aggregation state of matter. The van Edward force includes the dispersion force, the inducement and the orientation force. The scope of van Edward's force is only a few angstroms.
(1) the dispersion force exists in all polar or non-polar molecules. It is a force generated by the transient dipole interaction near the dipole. But only in the nonpolar system, such as benzene, polyethylene or polystyrene, the dispersion force is the main component.
(2) induced force, when a fixed dipole molecule induces an induced dipole in a neighboring nonpolar molecule, the attraction between the dipole and the inherent dipole is called the induced force.
Aromatic compounds are highly influential dueto highly polarized pi electrons, such as low molecular weight esters and polystyrene, or between benzene and polyvinyl acetate.
(3) when the polar molecules are close to each other, a force between the molecules is called the orientation force due to the orientation of the inherent dipole. For example, the interaction between an ester plasticizer and a PVC or a nitrocellulose is a representative example.
2. hydrogen bonds containing OH base or NH group molecules, such as polyamide, polyvinyl alcohol, cellulose and so on, can form hydrogen bonds between molecules and sometimes inside molecules.
Hydrogen bond is a relatively strong interaction bond, which prevents the plasticizer molecules from intercalation between polymer molecules. If the hydrogen bond is densely distributed along the polymer molecular chain, the stronger the effect of plasticizer insertion will be. Therefore, it is required that the plasticizer and polymer molecules can also have a similar strong effect. On the other hand, with the increase of temperature, the attraction between molecules is weakened due to the decrease of hydrogen bonds. This is because the thermal movement of molecules hinders the orientation of polymer molecules.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Phthalic acid ester plasticizer two soluble in organic solvents, medium polar substances, high boiling point, low volatility and high lipid solubility, compared with other plasticizers, adjacent benzene two formic acid ester plasticizer has the following advantages: wide applicability, good chemical stability, the production process is simple. Cheap and easily obtained raw materials and low cost; the adjacent benzene two formic acid ester plasticizer phthalic acid esters two disadvantages: plasticizer products in the process of volatile, with exudative and migration in PVC products, a large dose of entering the human body is carcinogenic.
Phthalic acid esters are the most widely used and most used plasticizers, accounting for about 88% of the market share of plasticizers. Phthalic acid ester two is widely used in plastic packaging industry, this kind of compounds in plastic products and plastic molecular miscibility between the two is better, because there is no strict chemical bonding, so by hydrogen bonds and van Edward connected between the two relatively independent of the chemical nature.
As of two phthalic acid ester plasticizer including two formic acid isooctyl phthalate two (DEHP) and dibutyl phthalate (DBP) phthalate two formic acid and two methyl ester (DMP) and two formic acid butyl benzyl phthalate (BBP) etc..
Phthalic acid two formic acid two (2 - ethyl) hexyl ester (DEHP). DEHP, also known as two octyl phthalate (DOP), is the most important phthalate ester, and is the most widely used and largest plasticizer. DEHP is a colorless liquid with almost no taste. It is insoluble in water, soluble in most organic solvents and hydrocarbons, and has good compatibility with polyvinyl chloride, chloroacetate, polystyrene, polymethyl methacrylate and cellulose.
But because in the process of production, DEHP does not polymerized with polymer materials, and its molecular weight is small, so the migration characteristics are quite obvious. It will release from products and enter the environment, and it will do harm to the crowd.
JaneC.Caldwell et al. Put forward that DEHP is a genotoxic carcinogen to rodents, which directly affects the chromosomes, spindles and mitosis of tissues.
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.
Dibutyl phthalate (DBP). DBP is also an important plasticizer in Phthalic two formic acid esters. It is a colorless liquid, slightly soluble in water, and easy to dissolve in organic solvents such as ethanol and ether. It has good low temperature resistance, aging resistance and good plasticity, but its toxicity can not be underestimated. Li Yuanfeng [4] studied the effects of dibutyl phthalate on neurobehavioral development of rats, the mechanism of DBP toxicity is mainly due to the disruption of endocrine function, in vivo and in vitro experiments indicated that DBP has estrogenic and / or anti androgenic activity, and can affect a variety of enzymes activity of steroid synthesis.
When plasticizers are added to the polymer, the interaction between plasticizer molecules, plasticizers and polymer molecules is important. Unless all these interactions (plasticizers and plasticizers, plasticizers and polymers, polymers and polymers) are at the same hour, there is no possibility of plasticizing and anti plasticizing.
1. Vander Ed Levandewali is a weak attraction between molecules and molecules in the aggregation state of matter. The van Edward force includes the dispersion force, the inducement and the orientation force. The scope of van Edward's force is only a few angstroms.
(1) the dispersion force exists in all polar or non-polar molecules. It is a force generated by the transient dipole interaction near the dipole. But only in the nonpolar system, such as benzene, polyethylene or polystyrene, the dispersion force is the main component.
(2) induced force, when a fixed dipole molecule induces an induced dipole in a neighboring nonpolar molecule, the attraction between the dipole and the inherent dipole is called the induced force.
Aromatic compounds are highly influential dueto highly polarized pi electrons, such as low molecular weight esters and polystyrene, or between benzene and polyvinyl acetate.
(3) when the polar molecules are close to each other, a force between the molecules is called the orientation force due to the orientation of the inherent dipole. For example, the interaction between an ester plasticizer and a PVC or a nitrocellulose is a representative example.
2. hydrogen bonds containing OH base or NH group molecules, such as polyamide, polyvinyl alcohol, cellulose and so on, can form hydrogen bonds between molecules and sometimes inside molecules.
Hydrogen bond is a relatively strong interaction bond, which prevents the plasticizer molecules from intercalation between polymer molecules. If the hydrogen bond is densely distributed along the polymer molecular chain, the stronger the effect of plasticizer insertion will be. Therefore, it is required that the plasticizer and polymer molecules can also have a similar strong effect. On the other hand, with the increase of temperature, the attraction between molecules is weakened due to the decrease of hydrogen bonds. This is because the thermal movement of molecules hinders the orientation of polymer molecules.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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