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High polymer phosphate flame retardant
2017-9-11 17:38:21
High polymer phosphate flame retardant
Than oligomer molecular weight of the polymer type phosphate ester flame retardant type of phosphate ester flame retardant is big, can be divided into main chain containing phosphorus and the type of side chain type two kinds, polymer type phosphate flame retardants are widely used in plastics, rubber and fiber flame retardant.
The synthesis method of high polymer phosphate flame retardant is composed of solution polymerization, interface polymerization and bulk polymerization. Wang yuzhong et al synthesized polyphenyl diphenylsulfone ester.
Such as zinc, magnesium, aluminum hydroxide or salt has good effect of flame retardant and smoke suppression effect, thus containing zinc, magnesium, aluminum and other organic phosphate by people more and more attention, there are mainly phosphate, phosphonic acid salt and phosphonic acid salt and other categories. Phosphate has the properties of flame retardant, low toxicity, weather resistance, lubrication and plasticity.
Because of organic phosphorus flame retardant efficiency, and its decomposition product and its flame retardant polymer pyrolysis and combustion products of little corrosive, toxic, many varieties at the same time also has the plasticizing, thermal stability, and so on, to improve the comprehensive performance of high polymer material has a very important role. Therefore, organophosphorus flame retardants will be one of the hot spots in flame retardant science, and future research of organophosphorus flame retardants will be concentrated in the following aspects.
(1) high molecular weight of organophosphorus flame retardants. This kind of flame retardant has the advantages of high melting point, normal temperature and good thermal stability. It is easy to use and can be added directly.
(2) organophosphorus and high polymer flame retardants. This kind of flame retardant has the characteristics of high molecular weight, low vapor pressure and more function.
(3) reactive organophosphate flame retardants. The research on reactive flame retardants has been a hot spot in the field of flame retardant. As an integral part of the material, the flame retardant does not migrate, so it is of great significance to improve the comprehensive performance of the material.
Tris (2-Chloroethyl) Phosphate use
1. Tris (2-Chloroethyl) Phosphate Has Excellent Flame Retardancy, Excellent Resistance To Low Temperature And UV Resistance, The Steam Can Only Be Used At 225 ℃ Above The Direct Ignition Can Be Fired, But The Fire The Source Is Immediately Self-Extinguishing. This Product Is A Flame Retardant Not Only Can Improve The Material Level Of Flame Retardant Materials, But Also Improve The Flame Resistance Of Water Resistance, Acid Resistance, Cold Resistance And Antistatic Properties. Commonly Used In Flame Retardant Nitrocellulose And Acetate Fiber As The Substrate Of Paint Coatings, Unsaturated Polyester, Polyurethane, Acrylic, Phenolic Resin, Can Also Be Used For Soft PVC Plastic Flame Retardant. This Product Is Used For The Amount Of Unsaturated Polyester 10% To 20%, In The Polyurethane Rigid Foam (Flame Retardant Polyether As Raw Material) Can Be About 10% In The Soft PVC Used As Auxiliary Plastic Flame Retardant When The 5% To 10%. Flame Retardants, Uranium, Thorium, Plutonium, Technetium And Other Rare Metal Separation Solvent Or Extractant.
2. This Product Is Widely Used In Chemical Fiber Fabrics, Cellulose Acetate As A Flame Retardant, In Addition To Self-Extinguishing, But Also Improve Water Resistance, Cold Resistance And Antistatic Properties. The General Amount Of 5 To 10 Copies. This Product Is An Excellent Flame Retardant For Synthetic Materials, And Has A Good Role In The Promotion, Widely Used In Cellulose Acetate, Nitrocellulose Varnish, Ethyl Cellulose, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane, Phenolic Resin , In Addition To Self-Extinguishing Products, But Also Improve The Physical Properties Of Products, Products Feel Soft, Also Known As Oil Additives And Rare Elements Of The Extractant, And Flame Retardant Rubber Conveyor Belt Is The Main Flame Retardant Materials , The General Amount Of Added 5% To 10%.
3. Used As Additive Type Halogenated Phosphate Flame Retardant And Plasticizer. Molecules In Both Phosphorus And Chlorine, Flame Retardant Effect Is Remarkable, Not Volatile And Hydrolysis, Good Stability To Ultraviolet Light. Applicable To Phenolic Resin, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane And So On. Also Used As Nitrocellulose Coating Flame Retardant, PVC Flame Retardant Plasticizer, Metal Extractant, Gasoline Additives And Polyimide Processing Aids And So On. Can Improve Water Resistance, Weatherability, Cold Resistance, Antistatic Property. Reference Dosage 5% To 20%.
(4) expansive organophosphate flame retardants. The expansion type flame retardant is a flame retardant with phosphor and nitrogen as flame retardant, and generally does not contain halogen, so it is not needed to use antimony. When a polymer containing such flame retardants is heated or burned, a uniform porous carbon foam layer can be formed. The foam layer is insulated, oxygen and smoke, and can prevent the formation of molten droplets. Therefore, it has good flame-retardant and anti-smoking function.
Expansive flame retardant is composed of acid source (dehydrating agent), carbon source (carbon) and gas source (foaming agent). Due to the increasingly strict requirements of anti-smoking and detoxification of materials, many traditional flame retardants are facing difficulties nowadays, while the characteristics of expansive flame retardants provide good opportunities for their development. The expansive flame retardant used for polymers has become one of the most active research fields of flame retardants at the end of last century and is considered one of the most promising ways to achieve the non-halogenation of flame retardants.
It is well known that organophosphate can be synthesized with organophosphate (such as DMMP), phosphorus pentaoxia and epoxide. In addition, in order to give the product hydrophilicity, another hydroxyl reactant (such as water, alcohol, ethylene glycol and pentaerythritol) can be added at the end of the reaction. At the same time, these hydroxyl reactants also have the effect of regulating the molecular weight of the oligomers.
Using ethylene glycol and glycerol instead of epoxy compound as the main polymerization of reactants, the two step reaction to obtain a formaldehyde-free flame retardant FRC - F, on the basis of the phosphorus content changed little increase greatly, make the product hydroxyl content increased its theoretically and polybasic acid chances of crosslinking agent and the reaction of cellulose and to apply it to cotton fiber flame retardant finishing provides favorable conditions. FRC -f flame retardant molecular oxygen and hydroxyl containing alkanes, under acid condition can and butane tetracarboxylic acid carboxylic ester, yi ke and cellulose macromolecule hydroxyl ether, the carboxylic acid can be more and cellulose macromolecule hydroxyl resin, as to form a mesh crosslinking on the fabric, make the flame retardant effect of washing resistance.
Phosphate ester, also known as orthophosphate, is a phosphate derivative of phosphoric acid, which is a kind of phosphate derivative. For ternary phosphate acid, so according to replace the hydroxyl number is different, and phosphate can be divided into "phosphate (phosphoric acid ester, alkyl phosphate), secondary phosphate (dihydrogen phosphate ester) and tertiary phosphate (three phosphate ester).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Than oligomer molecular weight of the polymer type phosphate ester flame retardant type of phosphate ester flame retardant is big, can be divided into main chain containing phosphorus and the type of side chain type two kinds, polymer type phosphate flame retardants are widely used in plastics, rubber and fiber flame retardant.
The synthesis method of high polymer phosphate flame retardant is composed of solution polymerization, interface polymerization and bulk polymerization. Wang yuzhong et al synthesized polyphenyl diphenylsulfone ester.
Such as zinc, magnesium, aluminum hydroxide or salt has good effect of flame retardant and smoke suppression effect, thus containing zinc, magnesium, aluminum and other organic phosphate by people more and more attention, there are mainly phosphate, phosphonic acid salt and phosphonic acid salt and other categories. Phosphate has the properties of flame retardant, low toxicity, weather resistance, lubrication and plasticity.
Because of organic phosphorus flame retardant efficiency, and its decomposition product and its flame retardant polymer pyrolysis and combustion products of little corrosive, toxic, many varieties at the same time also has the plasticizing, thermal stability, and so on, to improve the comprehensive performance of high polymer material has a very important role. Therefore, organophosphorus flame retardants will be one of the hot spots in flame retardant science, and future research of organophosphorus flame retardants will be concentrated in the following aspects.
(1) high molecular weight of organophosphorus flame retardants. This kind of flame retardant has the advantages of high melting point, normal temperature and good thermal stability. It is easy to use and can be added directly.
(2) organophosphorus and high polymer flame retardants. This kind of flame retardant has the characteristics of high molecular weight, low vapor pressure and more function.
(3) reactive organophosphate flame retardants. The research on reactive flame retardants has been a hot spot in the field of flame retardant. As an integral part of the material, the flame retardant does not migrate, so it is of great significance to improve the comprehensive performance of the material.
Tris (2-Chloroethyl) Phosphate use
1. Tris (2-Chloroethyl) Phosphate Has Excellent Flame Retardancy, Excellent Resistance To Low Temperature And UV Resistance, The Steam Can Only Be Used At 225 ℃ Above The Direct Ignition Can Be Fired, But The Fire The Source Is Immediately Self-Extinguishing. This Product Is A Flame Retardant Not Only Can Improve The Material Level Of Flame Retardant Materials, But Also Improve The Flame Resistance Of Water Resistance, Acid Resistance, Cold Resistance And Antistatic Properties. Commonly Used In Flame Retardant Nitrocellulose And Acetate Fiber As The Substrate Of Paint Coatings, Unsaturated Polyester, Polyurethane, Acrylic, Phenolic Resin, Can Also Be Used For Soft PVC Plastic Flame Retardant. This Product Is Used For The Amount Of Unsaturated Polyester 10% To 20%, In The Polyurethane Rigid Foam (Flame Retardant Polyether As Raw Material) Can Be About 10% In The Soft PVC Used As Auxiliary Plastic Flame Retardant When The 5% To 10%. Flame Retardants, Uranium, Thorium, Plutonium, Technetium And Other Rare Metal Separation Solvent Or Extractant.
2. This Product Is Widely Used In Chemical Fiber Fabrics, Cellulose Acetate As A Flame Retardant, In Addition To Self-Extinguishing, But Also Improve Water Resistance, Cold Resistance And Antistatic Properties. The General Amount Of 5 To 10 Copies. This Product Is An Excellent Flame Retardant For Synthetic Materials, And Has A Good Role In The Promotion, Widely Used In Cellulose Acetate, Nitrocellulose Varnish, Ethyl Cellulose, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane, Phenolic Resin , In Addition To Self-Extinguishing Products, But Also Improve The Physical Properties Of Products, Products Feel Soft, Also Known As Oil Additives And Rare Elements Of The Extractant, And Flame Retardant Rubber Conveyor Belt Is The Main Flame Retardant Materials , The General Amount Of Added 5% To 10%.
3. Used As Additive Type Halogenated Phosphate Flame Retardant And Plasticizer. Molecules In Both Phosphorus And Chlorine, Flame Retardant Effect Is Remarkable, Not Volatile And Hydrolysis, Good Stability To Ultraviolet Light. Applicable To Phenolic Resin, Polyvinyl Chloride, Polyvinyl Acetate, Polyurethane And So On. Also Used As Nitrocellulose Coating Flame Retardant, PVC Flame Retardant Plasticizer, Metal Extractant, Gasoline Additives And Polyimide Processing Aids And So On. Can Improve Water Resistance, Weatherability, Cold Resistance, Antistatic Property. Reference Dosage 5% To 20%.
(4) expansive organophosphate flame retardants. The expansion type flame retardant is a flame retardant with phosphor and nitrogen as flame retardant, and generally does not contain halogen, so it is not needed to use antimony. When a polymer containing such flame retardants is heated or burned, a uniform porous carbon foam layer can be formed. The foam layer is insulated, oxygen and smoke, and can prevent the formation of molten droplets. Therefore, it has good flame-retardant and anti-smoking function.
Expansive flame retardant is composed of acid source (dehydrating agent), carbon source (carbon) and gas source (foaming agent). Due to the increasingly strict requirements of anti-smoking and detoxification of materials, many traditional flame retardants are facing difficulties nowadays, while the characteristics of expansive flame retardants provide good opportunities for their development. The expansive flame retardant used for polymers has become one of the most active research fields of flame retardants at the end of last century and is considered one of the most promising ways to achieve the non-halogenation of flame retardants.
It is well known that organophosphate can be synthesized with organophosphate (such as DMMP), phosphorus pentaoxia and epoxide. In addition, in order to give the product hydrophilicity, another hydroxyl reactant (such as water, alcohol, ethylene glycol and pentaerythritol) can be added at the end of the reaction. At the same time, these hydroxyl reactants also have the effect of regulating the molecular weight of the oligomers.
Using ethylene glycol and glycerol instead of epoxy compound as the main polymerization of reactants, the two step reaction to obtain a formaldehyde-free flame retardant FRC - F, on the basis of the phosphorus content changed little increase greatly, make the product hydroxyl content increased its theoretically and polybasic acid chances of crosslinking agent and the reaction of cellulose and to apply it to cotton fiber flame retardant finishing provides favorable conditions. FRC -f flame retardant molecular oxygen and hydroxyl containing alkanes, under acid condition can and butane tetracarboxylic acid carboxylic ester, yi ke and cellulose macromolecule hydroxyl ether, the carboxylic acid can be more and cellulose macromolecule hydroxyl resin, as to form a mesh crosslinking on the fabric, make the flame retardant effect of washing resistance.
Phosphate ester, also known as orthophosphate, is a phosphate derivative of phosphoric acid, which is a kind of phosphate derivative. For ternary phosphate acid, so according to replace the hydroxyl number is different, and phosphate can be divided into "phosphate (phosphoric acid ester, alkyl phosphate), secondary phosphate (dihydrogen phosphate ester) and tertiary phosphate (three phosphate ester).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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