News Details
Epoxy type plasticizer
2017-12-27 11:15:30
Epoxy type plasticizer
The epoxidation principle and synthesis method of epoxy type plasticizer are introduced in this paper. Epoxy type plasticizer has the advantages of environmental protection, green, biodegradation and so on, and has broad prospects for development.
With the rapid development of the plastics industry and textile printing and dyeing industry, the dosage of plasticizers has increased significantly. And now on the market than the commonly used plasticizer phthalate two formic acid ester, in recent years the health concerns and plasticizer research on traditional phthalate two formic acid ester, phthalic acid esters found two plasticizer will pollute the air, water and soil and food, and degradation in the environment the speed is very slow, so it has become a global environmental pollutants of concern. In addition, the direct contact between people and plastic products in daily life, ortho benzene two carboxylate plasticizers will enter human body through various ways and cause different degrees of harm.
Epoxy type plasticizer is a newly developed nontoxic plasticizer. It refers to organic compounds with epoxy groups in molecular structure. Compared with traditional ortho benzene plasticizers, it has many advantages, such as innocuity, heat resistance and light resistance.
With the environmental awareness of all countries in the world, pharmaceutical and food packaging, daily necessities, toys and other plastic products for the main plasticizer o-benzene two formic acid two ester (DOP) put forward higher requirements for the purity and health, epoxy plasticizer as environmentally friendly non-toxic plasticizer has gradually become a hot topic in the research and application the.
Epoxy type plasticizers mainly consist of two main categories: epoxy oil and epoxy fatty acid ester. Epoxy fatty acid ester has better lubricity, compatibility and dispersibility besides the advantages of epoxy oil.
Can the epoxidation of vegetable oil contains high unsaturated fatty acids, such as soybean oil, linseed oil, rapeseed oil, olive oil, corn oil, safflower oil, in addition, some other animal oils can also be used in the epoxidation reaction, such as lard, fish oil, etc..
One of the most important is the most common epoxidized soybean oil, it has good heat resistance, light resistance and low temperature flexibility, and low volatility, no toxicity, is China's most widely used green plasticizers, especially for food and drug packaging materials plastic plasticizer. This is determined by many reasons. On the one hand, soybean oil is used as raw material for regenerative soybean oil, which has a wide range of sources.
At present, the annual yield of domestic non transgenic soybean is 16 million ~ 18 million T. In addition, China's imports of genetically modified soybean oil giant, harm the application of transgenic soybean in food for the body which has been the focus of debate, which can be applied to the chemical products of epoxy soybean oil production; on the other hand, soybean oil has a high degree of unsaturation, the oleic acid (C18: 1) content is 22% ~ 25% linoleic acid, (C18: 2) content is 50% ~ 55%, linolenic acid (C18: 3) content is 7% ~ 9%, as is the epoxidation of plasticizer ideal raw material. Epoxidized soybean oil is a mixture of linoleic acid, oleic acid ester epoxy epoxy ester and epoxy palmitate etc., is under the action of the catalyst by soybean oil and organic acid synthesis and.
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.
There are 4 methods for epoxidation of epoxy plasticizers.
(1) the acid and enzyme can be used to catalyze the oxidation of peroxic acid, which is the most widely used in industrial production.
(2) oxidation of organic or inorganic peroxides, including alkaline or nitrile hydroperoxide and metal catalyzed epoxidation.
(3) with halogenated alcohol ring oxidation, the disadvantages are many reactants and many by-products, which also cause certain pollution to the environment.
(4) the oxidation of oxygen molecules is not contaminated, but it is limited to small molecules. For example, molecular oxygen is limited to ethylene, and silver is used as a catalyst. Oxidation of the molecular oxygen ring causes the production of volatile small molecular substances, such as aldehydes and short chain diacids, which are volatile in plant oil.
The first method is often used in actual production. The principle is that organic acid and hydrogen peroxide react to form peroxic acid under the action of catalyst. Peroxy acid react with unsaturated fatty acids in neutral fat (soybean oil, cottonseed oil, rice bran oil, linseed oil, etc.) to form epoxy bonds.
Epoxy fatty acid methyl ester is a mild yellow liquid at room temperature. It is a new environment-friendly plasticizer based on fatty acid methyl ester. It is a non-toxic and tasteless plasticizer and stabilizer for PVC.
Fatty acid methyl ester is formed by the reaction of various straight chain fatty acids with methanol. The carbon chain of linear unsaturated fatty acid methyl ester is generally l6-18 carbon, and its structural formula is R1, CH=CH R2 and COOCH: (R1 and R2 are 14-l6). In the presence of H +, organic acids (formic acid) react with H202 to form peroxy formic acid, and peroxy formic acid instantly react with unsaturated double bond of fatty acid methyl ester to form epoxy fatty acid methyl ester.
With epoxy plant oil plasticizer compared to epoxy fatty acid methyl ester plasticizer can completely or partly replace DOP plasticizer to produce non-toxic and environmentally friendly PVC products for food packaging materials, medical supplies, toys and water supply pipes, is also used for cellulose resin and synthetic rubber and non-toxic plasticizer softener in products processing, adding epoxy fatty acid methyl ester can obviously improve the physical properties of the products and the aging time, and barium, cadmium and zinc metal and stabilizer, has good synergistic effect. In addition, because it also has good lubricity, compatibility and dispersion properties, but also can be used as surfactant and dispersant used in epoxy coating and epoxy resin production industry, but because of the low temperature crystallization (curing incomplete, migration) and other issues, which limits its application in epoxy resin.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The epoxidation principle and synthesis method of epoxy type plasticizer are introduced in this paper. Epoxy type plasticizer has the advantages of environmental protection, green, biodegradation and so on, and has broad prospects for development.
With the rapid development of the plastics industry and textile printing and dyeing industry, the dosage of plasticizers has increased significantly. And now on the market than the commonly used plasticizer phthalate two formic acid ester, in recent years the health concerns and plasticizer research on traditional phthalate two formic acid ester, phthalic acid esters found two plasticizer will pollute the air, water and soil and food, and degradation in the environment the speed is very slow, so it has become a global environmental pollutants of concern. In addition, the direct contact between people and plastic products in daily life, ortho benzene two carboxylate plasticizers will enter human body through various ways and cause different degrees of harm.
Epoxy type plasticizer is a newly developed nontoxic plasticizer. It refers to organic compounds with epoxy groups in molecular structure. Compared with traditional ortho benzene plasticizers, it has many advantages, such as innocuity, heat resistance and light resistance.
With the environmental awareness of all countries in the world, pharmaceutical and food packaging, daily necessities, toys and other plastic products for the main plasticizer o-benzene two formic acid two ester (DOP) put forward higher requirements for the purity and health, epoxy plasticizer as environmentally friendly non-toxic plasticizer has gradually become a hot topic in the research and application the.
Epoxy type plasticizers mainly consist of two main categories: epoxy oil and epoxy fatty acid ester. Epoxy fatty acid ester has better lubricity, compatibility and dispersibility besides the advantages of epoxy oil.
Can the epoxidation of vegetable oil contains high unsaturated fatty acids, such as soybean oil, linseed oil, rapeseed oil, olive oil, corn oil, safflower oil, in addition, some other animal oils can also be used in the epoxidation reaction, such as lard, fish oil, etc..
One of the most important is the most common epoxidized soybean oil, it has good heat resistance, light resistance and low temperature flexibility, and low volatility, no toxicity, is China's most widely used green plasticizers, especially for food and drug packaging materials plastic plasticizer. This is determined by many reasons. On the one hand, soybean oil is used as raw material for regenerative soybean oil, which has a wide range of sources.
At present, the annual yield of domestic non transgenic soybean is 16 million ~ 18 million T. In addition, China's imports of genetically modified soybean oil giant, harm the application of transgenic soybean in food for the body which has been the focus of debate, which can be applied to the chemical products of epoxy soybean oil production; on the other hand, soybean oil has a high degree of unsaturation, the oleic acid (C18: 1) content is 22% ~ 25% linoleic acid, (C18: 2) content is 50% ~ 55%, linolenic acid (C18: 3) content is 7% ~ 9%, as is the epoxidation of plasticizer ideal raw material. Epoxidized soybean oil is a mixture of linoleic acid, oleic acid ester epoxy epoxy ester and epoxy palmitate etc., is under the action of the catalyst by soybean oil and organic acid synthesis and.
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.
There are 4 methods for epoxidation of epoxy plasticizers.
(1) the acid and enzyme can be used to catalyze the oxidation of peroxic acid, which is the most widely used in industrial production.
(2) oxidation of organic or inorganic peroxides, including alkaline or nitrile hydroperoxide and metal catalyzed epoxidation.
(3) with halogenated alcohol ring oxidation, the disadvantages are many reactants and many by-products, which also cause certain pollution to the environment.
(4) the oxidation of oxygen molecules is not contaminated, but it is limited to small molecules. For example, molecular oxygen is limited to ethylene, and silver is used as a catalyst. Oxidation of the molecular oxygen ring causes the production of volatile small molecular substances, such as aldehydes and short chain diacids, which are volatile in plant oil.
The first method is often used in actual production. The principle is that organic acid and hydrogen peroxide react to form peroxic acid under the action of catalyst. Peroxy acid react with unsaturated fatty acids in neutral fat (soybean oil, cottonseed oil, rice bran oil, linseed oil, etc.) to form epoxy bonds.
Epoxy fatty acid methyl ester is a mild yellow liquid at room temperature. It is a new environment-friendly plasticizer based on fatty acid methyl ester. It is a non-toxic and tasteless plasticizer and stabilizer for PVC.
Fatty acid methyl ester is formed by the reaction of various straight chain fatty acids with methanol. The carbon chain of linear unsaturated fatty acid methyl ester is generally l6-18 carbon, and its structural formula is R1, CH=CH R2 and COOCH: (R1 and R2 are 14-l6). In the presence of H +, organic acids (formic acid) react with H202 to form peroxy formic acid, and peroxy formic acid instantly react with unsaturated double bond of fatty acid methyl ester to form epoxy fatty acid methyl ester.
With epoxy plant oil plasticizer compared to epoxy fatty acid methyl ester plasticizer can completely or partly replace DOP plasticizer to produce non-toxic and environmentally friendly PVC products for food packaging materials, medical supplies, toys and water supply pipes, is also used for cellulose resin and synthetic rubber and non-toxic plasticizer softener in products processing, adding epoxy fatty acid methyl ester can obviously improve the physical properties of the products and the aging time, and barium, cadmium and zinc metal and stabilizer, has good synergistic effect. In addition, because it also has good lubricity, compatibility and dispersion properties, but also can be used as surfactant and dispersant used in epoxy coating and epoxy resin production industry, but because of the low temperature crystallization (curing incomplete, migration) and other issues, which limits its application in epoxy resin.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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