News Details
Phosphoric acid ester retardant plasticizer
2017-12-14 11:29:24
Phosphoric acid ester retardant plasticizer
The synthesis and product characteristics of phosphoric ester flame retardant plasticizer SCEP are introduced in this paper.
SCEP is a kind of phosphoric acid ester retardant plasticizer, which is mainly used in the processing industry of flame retardant plastics and rubber products. The phosphate ester flame retardant plasticizer is a mixed three aryl phosphate ester prepared by reaction of phenol, tert butylphenol and three phosphorus oxychloride. The best reaction conditions are as follows: the three chlorophosphate drop temperature is 60 degrees, the holding temperature is 150 degrees, and the holding time is 4H. Compared with other flame-retardant plasticizers such as TCP and TCEP, SCEP has the characteristics of low toxicity, low viscosity, small smell, good light stability and good flame retardancy.
SCEP flame retardant plasticizer preparation method of phenol 240g, tert butyl phenol, 60g catalyst 5.0g joined with stirrer, a thermometer, a condenser and a dropping funnel four in flask, stirring is heated to 60 DEG C, adding three phosphorus oxychloride 160g, after adding slowly heated up to 150 DEG C insulation and 4h.
It was cooled to 70 C, neutralized and washed, then decompressed and distilled, and the distillates of 190~240 and 0.2kPa were collected, and the 303.8g product was obtained with a yield of 87.8%. The characteristics of 2.2CEP flame-retardant plasticizer 2.2.1SCEP flame retardant plasticizer has better flame retardancy than TCP plasticizer.
The synthetic process of SCEP flame-retardant plasticizer is simple, the raw material is easy to be obtained, the investment of the equipment is little, and it is easy to be put into industrial production. SCEP flame-retardant plasticizers do not need any treatment in the process of plastic and rubber processing, and can be added directly with other additives. It is convenient for users to use.
The monomer copolymerization is introduced into the main chain of vinyl chloride, and the new polymer, which includes two monomers, is called the copolymer. The main varieties and properties of the copolymers of vinyl chloride and other monomers are as follows:
The vinyl chloride vinyl acetate copolymer of vinyl acetate monomer can be introduced to the general effect of plasticizers, the so-called "internal plasticization", can avoid the disadvantages of plasticizer volatilization, migration, extraction, but also can reduce the melt viscosity, lower processing temperature, improved processing performance. The content of vinyl acetate in the general copolymer is 3 ~ 14%.
The main disadvantages of the vinyl chloride vinyl acetate copolymer are the reduction of tensile strength, thermal deformation temperature, wear resistance, chemical stability and thermal stability.
The vinyl chloride vinylidene chloride copolymer, the copolymer plasticizing, softening temperature, solubility and intramolecular plasticization of vinyl chloride and vinyl acetate copolymer is basically the same. The most important feature is that the permeability of water and gas is small, the solubility of the ketone solvent is high and the diluting effect of aromatics can be resistant, so it can be effectively used in the coating. In addition, it is also used to make shrinkable thin films. Because heat and light stability are worse than vinyl chloride vinyl acetate copolymer, monomer cost is higher, so there is no extensive vinyl chloride vinyl acetate application.
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.
The vinyl chloride copolymer of acrylate copolymer: the internal plasticization and chloride - vinyl acetate, good thermal stability, can be used in the manufacture of hard and soft products, improved processability, impact resistance and cold resistance etc.. It can also be used for coating, bonding and so on.
The vinyl chloride maleate copolymer: maleic acid ester content of the copolymer is about 15%, the internal plasticization and vinyl chloride acrylate similar. It has good processing performance. The properties of physical and mechanical properties are lower, and the heat resistance is higher than that of the general copolymer.
The vinyl chloride - olefin copolymer: ethylene and propylene olefin polymerization can be prepared, fluidity, thermal stability, impact resistance, transparency, heat resistance and other excellent copolymerization resin.
In order to improve the soft PVC in the process of using plasticizer volatilization, migration, extraction and other commonly used polymer blends: nitrile rubber (NBR), chlorinated polyethylene (CPE), vinyl chloride acrylate and maleic acid copolymer, the double octyl ethylene vinyl acetate (EVA), ethylene vinyl acetate - vinyl chloride copolymer.
The introduction of other monomers on the PVC side chain or the introduction of vinyl chloride chain on the side chain of the heteropoly polymer is called graft polymerization.
Change the arrangement of the chain in the main chain of PVC, or change the arrangement of the polyvinyl chloride chain, which changes the polymerization method, which is called low temperature polymerization.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The synthesis and product characteristics of phosphoric ester flame retardant plasticizer SCEP are introduced in this paper.
SCEP is a kind of phosphoric acid ester retardant plasticizer, which is mainly used in the processing industry of flame retardant plastics and rubber products. The phosphate ester flame retardant plasticizer is a mixed three aryl phosphate ester prepared by reaction of phenol, tert butylphenol and three phosphorus oxychloride. The best reaction conditions are as follows: the three chlorophosphate drop temperature is 60 degrees, the holding temperature is 150 degrees, and the holding time is 4H. Compared with other flame-retardant plasticizers such as TCP and TCEP, SCEP has the characteristics of low toxicity, low viscosity, small smell, good light stability and good flame retardancy.
SCEP flame retardant plasticizer preparation method of phenol 240g, tert butyl phenol, 60g catalyst 5.0g joined with stirrer, a thermometer, a condenser and a dropping funnel four in flask, stirring is heated to 60 DEG C, adding three phosphorus oxychloride 160g, after adding slowly heated up to 150 DEG C insulation and 4h.
It was cooled to 70 C, neutralized and washed, then decompressed and distilled, and the distillates of 190~240 and 0.2kPa were collected, and the 303.8g product was obtained with a yield of 87.8%. The characteristics of 2.2CEP flame-retardant plasticizer 2.2.1SCEP flame retardant plasticizer has better flame retardancy than TCP plasticizer.
The synthetic process of SCEP flame-retardant plasticizer is simple, the raw material is easy to be obtained, the investment of the equipment is little, and it is easy to be put into industrial production. SCEP flame-retardant plasticizers do not need any treatment in the process of plastic and rubber processing, and can be added directly with other additives. It is convenient for users to use.
The monomer copolymerization is introduced into the main chain of vinyl chloride, and the new polymer, which includes two monomers, is called the copolymer. The main varieties and properties of the copolymers of vinyl chloride and other monomers are as follows:
The vinyl chloride vinyl acetate copolymer of vinyl acetate monomer can be introduced to the general effect of plasticizers, the so-called "internal plasticization", can avoid the disadvantages of plasticizer volatilization, migration, extraction, but also can reduce the melt viscosity, lower processing temperature, improved processing performance. The content of vinyl acetate in the general copolymer is 3 ~ 14%.
The main disadvantages of the vinyl chloride vinyl acetate copolymer are the reduction of tensile strength, thermal deformation temperature, wear resistance, chemical stability and thermal stability.
The vinyl chloride vinylidene chloride copolymer, the copolymer plasticizing, softening temperature, solubility and intramolecular plasticization of vinyl chloride and vinyl acetate copolymer is basically the same. The most important feature is that the permeability of water and gas is small, the solubility of the ketone solvent is high and the diluting effect of aromatics can be resistant, so it can be effectively used in the coating. In addition, it is also used to make shrinkable thin films. Because heat and light stability are worse than vinyl chloride vinyl acetate copolymer, monomer cost is higher, so there is no extensive vinyl chloride vinyl acetate application.
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.
The vinyl chloride copolymer of acrylate copolymer: the internal plasticization and chloride - vinyl acetate, good thermal stability, can be used in the manufacture of hard and soft products, improved processability, impact resistance and cold resistance etc.. It can also be used for coating, bonding and so on.
The vinyl chloride maleate copolymer: maleic acid ester content of the copolymer is about 15%, the internal plasticization and vinyl chloride acrylate similar. It has good processing performance. The properties of physical and mechanical properties are lower, and the heat resistance is higher than that of the general copolymer.
The vinyl chloride - olefin copolymer: ethylene and propylene olefin polymerization can be prepared, fluidity, thermal stability, impact resistance, transparency, heat resistance and other excellent copolymerization resin.
In order to improve the soft PVC in the process of using plasticizer volatilization, migration, extraction and other commonly used polymer blends: nitrile rubber (NBR), chlorinated polyethylene (CPE), vinyl chloride acrylate and maleic acid copolymer, the double octyl ethylene vinyl acetate (EVA), ethylene vinyl acetate - vinyl chloride copolymer.
The introduction of other monomers on the PVC side chain or the introduction of vinyl chloride chain on the side chain of the heteropoly polymer is called graft polymerization.
Change the arrangement of the chain in the main chain of PVC, or change the arrangement of the polyvinyl chloride chain, which changes the polymerization method, which is called low temperature polymerization.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian