News Details
Flame retardant for bromine
2017-9-5 16:57:38
Flame retardant for bromine
Bromine series flame retardant is halogen flame retardants in one of the most important and the most effective, as a result of bromine series flame retardant have good flame retardant effect, adding quantity is little, good compatibility, thermal stability performance, little effect on the capabilities of the flame retardant products, has the advantages of price advantage, has been very popular with the market.
However, the flame retardants of the bromine system also have serious disadvantages, namely reducing the anti-ultraviolet light stability of the flame retardant materials, and producing more smoke, corrosive gases and poisonous gases when burned. The flame retardants of the bromine are generally used with antimony oxide, which makes the quantity of smoke higher.
Flame retardant mechanism of bromine system
All macromolecular materials are flammable, and there are no fireproof resins. Flame retardant and self-extinguishing can be obtained by adding flame retardants. When the resin leaves the fire, it stops burning, called self-extinguishing. Combustion generally requires the following three conditions: 1. Combustible material; 2 temperature; 3. Oxygen. As long as there is no one of these conditions the fire will go out.
Bromine series flame retardant flame retardant effect is mainly to gas phase, the main reason is in the department of bromine flame retardant thermal decomposition, generate gets, and gets to capture transmit the combustion chain reaction activity of free radicals (such as OH. , O. , h.) , the low activity of the bromide free radical, which causes the combustion to slow or terminate. The equation is as follows:
Br > Br. + r. Br. + RCH3 - gets + RCH2. Gets a + H and H2 + Br. Gets + o. - OH. + Br.. Gets + OH - H2O + Br.
In addition, HBr is a dense gas and is difficult to ignite. It can not only dilute the oxygen in the air, but also cover the surface of the material and eliminate air, resulting in the combustion speed or self-extinguishing of the material.
In terms of flame retardation efficiency, fat group bromide > fatty ring bromide > aromatic bromide, while thermal stability is the opposite.
Tris (2-Chloroethyl) Phosphate
Appearance: Pure Tris (2-Chloroethyl) Phosphate Is A Colorless Or Pale Yellow Oily Transparent Liquid With A Light Creamy Taste.
Refractive Index (N20D) 1.4731
Boiling Point Of 194 ° C, Flash Point Of 225 ° C
Freezing Point -64 ℃
Decomposition Temperature 240-280 ℃
Viscosity 38-47 Centipoise (20 ° C)
Phosphorus Content Of 10.8%
Chlorine Content Of 37.3%, With The General Organic Solvents (Such As Alcohol, Ketones, Aromatics, Chloroform, Etc.) Compatible, Insoluble In Aliphatic Hydrocarbons, Almost Insoluble In Water, And Hydrolytic Stability Is Good, In Alkaline Solution In A Small Amount Of Decomposition, The No Obvious Corrosion Of The Product.
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%.
When the flame retardant of bromine is used with antimony oxide, it has obvious synergistic effect.
Main varieties of flame retardant of bromine
1. Polybromodiphenylether polybromodiphenyl ether (DBOPO), ODPO and PBDPO (PBDPO), both of which are additive flame retardants. Only decabromodiphenyl ether is a single compound, and the other two are mixtures. The molecular formula is C12OBr10, C12H2OBr8 and C12H5OBr5. Decabromodiphenyl ether
(DBOPO) is a type of added flame retardant. The product has excellent thermal stability melting point of 304 -- -309 oc, and the bromine content is 83.3%.
2. Brominated phthalate represents product DP - 45, whose flame retardant efficiency is higher than chlorinated paraffin and phosphatate, and the smoke content is lower than that of phosphate
The flame retardant of bromine (39568-99-5) is easy to use and can be added directly in the post-processing of textiles (polyester, viscose, blended, cotton, pure polyester), finishing the whole process at normal temperature. Is pollution-free new fiber flame retardant, compared with the conventional product pbdes, the flame retardant join, when polymer cracking or burning, no poisonous diphenyl and two well alkanes and polybrominated diphenyl and furan produce.
Brominated polystyrene on the basis of the synthesis way named respectively brominated polystyrene and poly (styrene brominated, can be seen from the name on the brominated polystyrene is done through to brominated polystyrene; Polybrominated styrene is used to protect the styrene first, then bromide, then restore the keene bond, synthesize brominated styrene, and complete the polymerization again. Solvent and non-solvent methods can be divided into the use of solvents from the synthesis process. Solvent method is usually used to synthesize the solvent.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Bromine series flame retardant is halogen flame retardants in one of the most important and the most effective, as a result of bromine series flame retardant have good flame retardant effect, adding quantity is little, good compatibility, thermal stability performance, little effect on the capabilities of the flame retardant products, has the advantages of price advantage, has been very popular with the market.
However, the flame retardants of the bromine system also have serious disadvantages, namely reducing the anti-ultraviolet light stability of the flame retardant materials, and producing more smoke, corrosive gases and poisonous gases when burned. The flame retardants of the bromine are generally used with antimony oxide, which makes the quantity of smoke higher.
Flame retardant mechanism of bromine system
All macromolecular materials are flammable, and there are no fireproof resins. Flame retardant and self-extinguishing can be obtained by adding flame retardants. When the resin leaves the fire, it stops burning, called self-extinguishing. Combustion generally requires the following three conditions: 1. Combustible material; 2 temperature; 3. Oxygen. As long as there is no one of these conditions the fire will go out.
Bromine series flame retardant flame retardant effect is mainly to gas phase, the main reason is in the department of bromine flame retardant thermal decomposition, generate gets, and gets to capture transmit the combustion chain reaction activity of free radicals (such as OH. , O. , h.) , the low activity of the bromide free radical, which causes the combustion to slow or terminate. The equation is as follows:
Br > Br. + r. Br. + RCH3 - gets + RCH2. Gets a + H and H2 + Br. Gets + o. - OH. + Br.. Gets + OH - H2O + Br.
In addition, HBr is a dense gas and is difficult to ignite. It can not only dilute the oxygen in the air, but also cover the surface of the material and eliminate air, resulting in the combustion speed or self-extinguishing of the material.
In terms of flame retardation efficiency, fat group bromide > fatty ring bromide > aromatic bromide, while thermal stability is the opposite.
Tris (2-Chloroethyl) Phosphate
Appearance: Pure Tris (2-Chloroethyl) Phosphate Is A Colorless Or Pale Yellow Oily Transparent Liquid With A Light Creamy Taste.
Refractive Index (N20D) 1.4731
Boiling Point Of 194 ° C, Flash Point Of 225 ° C
Freezing Point -64 ℃
Decomposition Temperature 240-280 ℃
Viscosity 38-47 Centipoise (20 ° C)
Phosphorus Content Of 10.8%
Chlorine Content Of 37.3%, With The General Organic Solvents (Such As Alcohol, Ketones, Aromatics, Chloroform, Etc.) Compatible, Insoluble In Aliphatic Hydrocarbons, Almost Insoluble In Water, And Hydrolytic Stability Is Good, In Alkaline Solution In A Small Amount Of Decomposition, The No Obvious Corrosion Of The Product.
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%.
When the flame retardant of bromine is used with antimony oxide, it has obvious synergistic effect.
Main varieties of flame retardant of bromine
1. Polybromodiphenylether polybromodiphenyl ether (DBOPO), ODPO and PBDPO (PBDPO), both of which are additive flame retardants. Only decabromodiphenyl ether is a single compound, and the other two are mixtures. The molecular formula is C12OBr10, C12H2OBr8 and C12H5OBr5. Decabromodiphenyl ether
(DBOPO) is a type of added flame retardant. The product has excellent thermal stability melting point of 304 -- -309 oc, and the bromine content is 83.3%.
2. Brominated phthalate represents product DP - 45, whose flame retardant efficiency is higher than chlorinated paraffin and phosphatate, and the smoke content is lower than that of phosphate
The flame retardant of bromine (39568-99-5) is easy to use and can be added directly in the post-processing of textiles (polyester, viscose, blended, cotton, pure polyester), finishing the whole process at normal temperature. Is pollution-free new fiber flame retardant, compared with the conventional product pbdes, the flame retardant join, when polymer cracking or burning, no poisonous diphenyl and two well alkanes and polybrominated diphenyl and furan produce.
Brominated polystyrene on the basis of the synthesis way named respectively brominated polystyrene and poly (styrene brominated, can be seen from the name on the brominated polystyrene is done through to brominated polystyrene; Polybrominated styrene is used to protect the styrene first, then bromide, then restore the keene bond, synthesize brominated styrene, and complete the polymerization again. Solvent and non-solvent methods can be divided into the use of solvents from the synthesis process. Solvent method is usually used to synthesize the solvent.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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