News Details
Flame retardants for polyurethane materials
2017-11-26 22:16:42
Flame retardants for polyurethane materials are used to prevent polyurethane materials from being ignited and to inhibit flame propagation. Polyurethane materials containing polyurethane materials are difficult to ignite and inhibit flame propagation, which can prevent fire.
Effect of flame retardant polyurethane materials with flame retardant elements: boron and aluminum A III, as inorganic compounds in non durable flame retardant and organic boron based flame retardant; IV group B and group V B titanium and zirconium niobium and their compounds for wool flame retardant fabric; V A group nitrogen, phosphorus, antimony and VII of A group is the main element of halogen flame retardant. Among them, nitrogen and phosphorus are used as cellulose fibers, halogen and antimony as durable flame retardants for synthetic fibers.
The main advantages of brominated flame retardants are high flame retardant efficiency, little impact on the properties of the matrix, excellent cost performance, high thermal stability, decomposition temperature mostly at 300 degrees, excellent hydrolysis stability, sufficient raw material sources, mature manufacturing process, moderate price, acceptable. It is suitable for a variety of plastics, rubber, synthetic fiber and coatings. About 70% of the flame retardants used in the global electronic and electrical products are still brominated flame retardants. They have become the mainstream of flame retardants used in synthetic and plastic products. The major industrial brominated flame retardants are 50%, and another important brominated flame retardants are six bromo twelve alkanes.
Fire retardants should minimize the amount of toxic and corrosive gases and smoke produced by thermal decomposition and combustion of materials. They are often the first and most dangerous factors in the fire. Most of the deaths in the fires are caused by toxic gases and smoke. Therefore, flame retardant and attenuation, smoke suppression in the same breath.
The rate of flame propagation and heat release of flame retardant materials decreases greatly, which can effectively reduce the fire environment temperature and the speed of fire propagation, and reduce the amount of poisonous gas and smoke generated in the fire scene. The safety evaluation of flame retardants includes the acute toxicity, carcinogenicity, variability and irritation of the flame retardants, and also the toxic gases and smoke produced during combustion.
Flame retardants are divided into three types: additives, reaction type and finishing type. Add type is based on the physical model, dispersed in a matrix, used for thermoplastic polymers, such as flame retardant and synthetic fiber spinning solution mixing and spinning; reaction type is used as a monomer of polymer, participate in copolymerization, and finally become a monomer molecular structure of polymer, used for heat for polymer after finishing; flame-retardant finishing is in fiber or fabric.
The largest users of flame retardants are plastic products, accounting for about 80%, about 5% of textiles, about 10% of rubber, about 3% of coatings, and about 2% of wood and paper. The biggest users of plastics are electronics, building materials, transportation, furniture, textiles and other industries.
Tris(2-chloroethyl)phosphate(TCEP)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%.
Flame retardant textiles are generally used for clothing, decoration and industrial fabrics. To wear work clothes, fire fighting clothing, uniforms, pajamas, children and adults shirts; decorative fabrics including aircraft, train, car and ship seat fabric, the EMU and the high iron seats and carpets and other textile products, cloth for hotel, high-rise buildings and public places decoration, home textiles such as curtains, curtain. Tablecloth, bed sheets, mattress, carpet, wall cloth, sofa sets; industrial fabrics such as toys, tents etc..
The world's flame retardant dosage 1500~1600 tons, the United States and Europe inorganic flame retardant dosage of its total amount of 50%~55% and 40%~45%. Japan is about 30%, and the rest of Asia is below 15%. The proportion of halogenated flame retardants in the United States is about 20%, Europe is less than 20%, Japan is about 30%, and other parts of Asia is about 50%.
At present, the annual output of China's flame retardant is about 130~160 tons, with an average annual growth rate of 15%~20%, higher than the world average growth rate of 3%~4% level. And the ratio of halogen and halogen phosphorus flame retardants is too high, up to about 70%, of which brominated flame retardants accounted for about 37%, chlorine series accounted for about 6%, halogen phosphorus series accounted for about 25%. As a flame retardant, such as aluminum hydroxide, magnesium hydroxide, zinc borate and other inorganic compounds, the amount is very low, about 8%.
Natural polymer materials and organic synthetic polymers are mostly flammable and combustible. Flame retardants are used to prevent these materials from being ignited and to inhibit flame propagation. Materials containing flame retardants are difficult to ignite and inhibit the spread of flame, which can prevent fire.
Flame retardant chlorinated rubber was prepared by reaction of natural rubber and chlorine gas, which initiated the flame retardant polymer with chemical method. The rapid development of polymer industry in recent 40 years, the rapid development of flame retardant technology of plastics.
The rigid ring phosphate flame retardant with high molecular weight of phosphorus can reduce the amount of flame retardant and has little effect on the thermal deformation temperature of the material.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Effect of flame retardant polyurethane materials with flame retardant elements: boron and aluminum A III, as inorganic compounds in non durable flame retardant and organic boron based flame retardant; IV group B and group V B titanium and zirconium niobium and their compounds for wool flame retardant fabric; V A group nitrogen, phosphorus, antimony and VII of A group is the main element of halogen flame retardant. Among them, nitrogen and phosphorus are used as cellulose fibers, halogen and antimony as durable flame retardants for synthetic fibers.
The main advantages of brominated flame retardants are high flame retardant efficiency, little impact on the properties of the matrix, excellent cost performance, high thermal stability, decomposition temperature mostly at 300 degrees, excellent hydrolysis stability, sufficient raw material sources, mature manufacturing process, moderate price, acceptable. It is suitable for a variety of plastics, rubber, synthetic fiber and coatings. About 70% of the flame retardants used in the global electronic and electrical products are still brominated flame retardants. They have become the mainstream of flame retardants used in synthetic and plastic products. The major industrial brominated flame retardants are 50%, and another important brominated flame retardants are six bromo twelve alkanes.
Fire retardants should minimize the amount of toxic and corrosive gases and smoke produced by thermal decomposition and combustion of materials. They are often the first and most dangerous factors in the fire. Most of the deaths in the fires are caused by toxic gases and smoke. Therefore, flame retardant and attenuation, smoke suppression in the same breath.
The rate of flame propagation and heat release of flame retardant materials decreases greatly, which can effectively reduce the fire environment temperature and the speed of fire propagation, and reduce the amount of poisonous gas and smoke generated in the fire scene. The safety evaluation of flame retardants includes the acute toxicity, carcinogenicity, variability and irritation of the flame retardants, and also the toxic gases and smoke produced during combustion.
Flame retardants are divided into three types: additives, reaction type and finishing type. Add type is based on the physical model, dispersed in a matrix, used for thermoplastic polymers, such as flame retardant and synthetic fiber spinning solution mixing and spinning; reaction type is used as a monomer of polymer, participate in copolymerization, and finally become a monomer molecular structure of polymer, used for heat for polymer after finishing; flame-retardant finishing is in fiber or fabric.
The largest users of flame retardants are plastic products, accounting for about 80%, about 5% of textiles, about 10% of rubber, about 3% of coatings, and about 2% of wood and paper. The biggest users of plastics are electronics, building materials, transportation, furniture, textiles and other industries.
Tris(2-chloroethyl)phosphate(TCEP)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%.
Flame retardant textiles are generally used for clothing, decoration and industrial fabrics. To wear work clothes, fire fighting clothing, uniforms, pajamas, children and adults shirts; decorative fabrics including aircraft, train, car and ship seat fabric, the EMU and the high iron seats and carpets and other textile products, cloth for hotel, high-rise buildings and public places decoration, home textiles such as curtains, curtain. Tablecloth, bed sheets, mattress, carpet, wall cloth, sofa sets; industrial fabrics such as toys, tents etc..
The world's flame retardant dosage 1500~1600 tons, the United States and Europe inorganic flame retardant dosage of its total amount of 50%~55% and 40%~45%. Japan is about 30%, and the rest of Asia is below 15%. The proportion of halogenated flame retardants in the United States is about 20%, Europe is less than 20%, Japan is about 30%, and other parts of Asia is about 50%.
At present, the annual output of China's flame retardant is about 130~160 tons, with an average annual growth rate of 15%~20%, higher than the world average growth rate of 3%~4% level. And the ratio of halogen and halogen phosphorus flame retardants is too high, up to about 70%, of which brominated flame retardants accounted for about 37%, chlorine series accounted for about 6%, halogen phosphorus series accounted for about 25%. As a flame retardant, such as aluminum hydroxide, magnesium hydroxide, zinc borate and other inorganic compounds, the amount is very low, about 8%.
Natural polymer materials and organic synthetic polymers are mostly flammable and combustible. Flame retardants are used to prevent these materials from being ignited and to inhibit flame propagation. Materials containing flame retardants are difficult to ignite and inhibit the spread of flame, which can prevent fire.
Flame retardant chlorinated rubber was prepared by reaction of natural rubber and chlorine gas, which initiated the flame retardant polymer with chemical method. The rapid development of polymer industry in recent 40 years, the rapid development of flame retardant technology of plastics.
The rigid ring phosphate flame retardant with high molecular weight of phosphorus can reduce the amount of flame retardant and has little effect on the thermal deformation temperature of the material.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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