News Details
The effect of plasticizer
2017-12-10 17:49:29
The effect of plasticizer
The role of plasticizers is introduced in this paper. The role of many plasticizers is to change the properties of the polymers, the processing of the polymers and the properties of the products.
The effects of plasticizers are as follows:
(1) reducing the glass temperature of the polymer.
2. Change the structure of the polymer so that the plasticized material is soft.
(3) increasing the elongation of the polymer and reducing the tensile strength.
(4) increase the toughness of the polymer and improve the impact resistance.
Improve low temperature performance.
The lower the polymer viscosity, improve the process of polymer and a mixture of ingredients.
The change of polymer rheology change properties, especially the products of polymer content is very high in the product.
The lower the melting temperature, lower gel temperature, shorten the mixing time, lowering the extrusion pressure (for melt processing in various types of equipment operation, reduce the use of temperature, improve the adhesive brushing smoothness).
Use of products plasticizer to improve interaction with water: hydrophilic plasticizers increased adsorption products for water, increase the curing speed of water activity products, reduce or increase the adhesion, lead to expansion; hydrophobic plasticizer reduces the sensitivity to water products.
The dispersion in liquid and solid additive. It is more effective for the filler, dye and other liquid additives that are soluble in plasticizers.
Increase or weaken the conductivity or insulation of a product.
Improve the sensitivity of the products to combustion, increase the flame retardancy, and inhibit the amount of tobacco.
Plasticizing biodegradability. The degradation rate of products can be increased by adding degradable plasticizers into biodegradable materials.
The adhesion and vibration attenuation between plastic films are improved.
Increase the gloss transparency of the products.
To improve the volatility of the products, reduce the fogging of the products and the oil drop on the surface of the products.
Reduce the spray and crystallinity of the products.
Improve the refraction of the product to light.
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.
To improve the mobility of low molecular weight material to the surface of the product.
Increase the gas permeability of products.
The compatibility of polymer and additive is increased.
Internal plasticizer and external plasticizer
After polymer chains are inserted into plasticizer molecules, plasticizers are physically combined with resin instead of chemical force (covalent bond) to change the processability, softness and tensile properties of resin elastomers, which is called external plasticization. External plasticization does not exist stoichiometric constraints on the processing can be in a wide range according to the product performance to determine the increase amount of plasticizers.
The plasticization is achieved by copolymerization of monomers with high glass transition temperature homopolymers with polymer to change the chemical structure of polymers. The internal plasticization must be added to the polymerization process. The characteristic of internal plasticization is that the structure of the chain is irregular and the cohesive force is weak. The copolymerization of vinyl chloride with acetic acid, nitrification or acetylation of cellulose are internal plasticizers. Usually, external plasticization Binet plasticizer can have a good performance, but not necessarily can have better durability.
Anti plasticizer and anti plasticizer
A small amount of plasticizers added to some plastics did not increase in elongation and tensile strength. On the contrary, polymers became harder and more brittle after adding plasticizers. This phenomenon is called reverse plasticization. In addition to the occurrence of PVC, the reverse plasticizing occurs in polycarbonate, polysulfone, polyphenylene ether, polyester and nylon 66.
In general, anti plasticizers are two or more aromatic rings, which have polarity and have high rigidity. For example, chlorinated biphenyl, chlorinated three biphenyl, polyphenylene glycol and so on. Polycarbonate, if it contains 20% of this substance, can get transparent, hard, rigid, self extinguishing, electrical and stress cracking properties. The plasticizer with strong polarity has obvious anti plasticizing effect. When the plasticizer content is 15%, the anti plasticizing effect is easy to appear, and the reverse plasticization is more easy to appear than the PVC emulsion method PVC.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The role of plasticizers is introduced in this paper. The role of many plasticizers is to change the properties of the polymers, the processing of the polymers and the properties of the products.
The effects of plasticizers are as follows:
(1) reducing the glass temperature of the polymer.
2. Change the structure of the polymer so that the plasticized material is soft.
(3) increasing the elongation of the polymer and reducing the tensile strength.
(4) increase the toughness of the polymer and improve the impact resistance.
Improve low temperature performance.
The lower the polymer viscosity, improve the process of polymer and a mixture of ingredients.
The change of polymer rheology change properties, especially the products of polymer content is very high in the product.
The lower the melting temperature, lower gel temperature, shorten the mixing time, lowering the extrusion pressure (for melt processing in various types of equipment operation, reduce the use of temperature, improve the adhesive brushing smoothness).
Use of products plasticizer to improve interaction with water: hydrophilic plasticizers increased adsorption products for water, increase the curing speed of water activity products, reduce or increase the adhesion, lead to expansion; hydrophobic plasticizer reduces the sensitivity to water products.
The dispersion in liquid and solid additive. It is more effective for the filler, dye and other liquid additives that are soluble in plasticizers.
Increase or weaken the conductivity or insulation of a product.
Improve the sensitivity of the products to combustion, increase the flame retardancy, and inhibit the amount of tobacco.
Plasticizing biodegradability. The degradation rate of products can be increased by adding degradable plasticizers into biodegradable materials.
The adhesion and vibration attenuation between plastic films are improved.
Increase the gloss transparency of the products.
To improve the volatility of the products, reduce the fogging of the products and the oil drop on the surface of the products.
Reduce the spray and crystallinity of the products.
Improve the refraction of the product to light.
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.
To improve the mobility of low molecular weight material to the surface of the product.
Increase the gas permeability of products.
The compatibility of polymer and additive is increased.
Internal plasticizer and external plasticizer
After polymer chains are inserted into plasticizer molecules, plasticizers are physically combined with resin instead of chemical force (covalent bond) to change the processability, softness and tensile properties of resin elastomers, which is called external plasticization. External plasticization does not exist stoichiometric constraints on the processing can be in a wide range according to the product performance to determine the increase amount of plasticizers.
The plasticization is achieved by copolymerization of monomers with high glass transition temperature homopolymers with polymer to change the chemical structure of polymers. The internal plasticization must be added to the polymerization process. The characteristic of internal plasticization is that the structure of the chain is irregular and the cohesive force is weak. The copolymerization of vinyl chloride with acetic acid, nitrification or acetylation of cellulose are internal plasticizers. Usually, external plasticization Binet plasticizer can have a good performance, but not necessarily can have better durability.
Anti plasticizer and anti plasticizer
A small amount of plasticizers added to some plastics did not increase in elongation and tensile strength. On the contrary, polymers became harder and more brittle after adding plasticizers. This phenomenon is called reverse plasticization. In addition to the occurrence of PVC, the reverse plasticizing occurs in polycarbonate, polysulfone, polyphenylene ether, polyester and nylon 66.
In general, anti plasticizers are two or more aromatic rings, which have polarity and have high rigidity. For example, chlorinated biphenyl, chlorinated three biphenyl, polyphenylene glycol and so on. Polycarbonate, if it contains 20% of this substance, can get transparent, hard, rigid, self extinguishing, electrical and stress cracking properties. The plasticizer with strong polarity has obvious anti plasticizing effect. When the plasticizer content is 15%, the anti plasticizing effect is easy to appear, and the reverse plasticization is more easy to appear than the PVC emulsion method PVC.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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