News Details
Polyvinyl chloride (PVC) material flame retardant
2017-11-29 11:03:44
Polyvinyl chloride (PVC) material flame retardant
With the development and application of PVC (PVC) flame retardants, the research of new flame retardants and flame-retardant technologies is attracting more and more attention.
Polyvinyl chloride (PVC) two research materials of flame retardant is: (1) a new flame retardant has multiple fire retardant effects (including low toxicity, low smoke flame retardant monomer) design and synthesis application research; (2) to study on the modification of flame retardant PVC material by radiation crosslinking, plasma grafting.
Considering the industrial application, blending and copolymerization of adding flame retardant composition into polyvinyl chloride (PVC) is still the dominant direction of flame retardant materials. Halogenated flame retardants is one of the largest organic flame retardants in the world. It experienced a rapid development in the golden era from 70s to 80s.
However, in recent years, halogenated flame retardants have attracted wide attention in the application process. First, polybrominated two phenyl ether itself and its flame retardant polymer pyrolysis and combustion products toxicity; the other is the preparation of antimony oxide substitutes. So far, halogen-containing flame retardant polymer materials, such as polyvinyl chloride (PVC), CR, and flame retardants containing halogen organic flame retardants, are widely used. Although the halogen - containing flame retardant materials show excellent flame retardancy, they produce more smoke and toxic and corrosive gases (Lu Huaqing) during the combustion.
This gas is the most dangerous factor in fire. Because their diffusion speed is far greater than that of flame diffusion, it prevents people from evacuating and extinguishing in fire and causes serious loss of life and property. From here, we do not lose face about the harmfulness of halogen containing flame retardants to the social environment and our life. Therefore, we must pay attention to the research and development of halogen-free flame retardants.
The application of halogen-free and phosphorous flame retardant can be traced back to the beginning of nineteenth Century. Since the 50s, the wide application of polymer materials has made a great development of organophosphorus flame retardants. In the early 70s, the organophosphorus flame retardants accounted for more than half of the total sales of the American flame retardant, which was mainly used for the flame retardant plasticizing of PVC resin.
With the requirement of flame retardance of polyurethane, polyolefin and various engineering plastics, the research of new organophosphorous flame retardants has been increasingly active. Its developing trend is progressive thermal stability and flame-retardant efficiency, and a series of halogen-free organophosphorous flame retardants with good performance have appeared.
Tris(2-chloroethyl)phosphate(TCEP)
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(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%.
At the beginning of 80s, early for intumescent flame retardant coatings such as flame retardant system was introduced to the flame retardant polymeric materials, in this period, Professor GCamino of Italy conducted a series of pioneering work, and establish and perfect the theory of expansion type flame retardant system and flame retardant mechanism with phosphorus and nitrogen as the main body. Since the 80s, the research of cyclic and cage phosphates and their derivatives has attracted wide attention.
Thus, people familiar to reveal the flame retardant agent on polymer materials is an important content of flame retardant science, with phosphate acid, pentaerythritol as the flame retardant mechanism of carbon source, melamine as the source of the IFR system is called a certain, but due to the thermal oxidation reaction of different flame retardant system in polymer the material is not the same, so the flame retardant mechanism of new flame retardant system remains to be further study.
Inorganic flame retardants such as Al (OH) 3, Mg (OH) 2, zinc borate and inorganic phosphorus compounds, etc. many inorganic flame retardants are filler type, they add large amounts to resins, which will seriously affect the processing technology and the final product performance. In 90s, efforts to improve the performance of inorganic flame retardants were concentrated on 4 aspects: (1) particle size, ultrafine and particle size distribution; (2) surface treatment; (3) less dust or dust-free; (4) microencapsulation.
The flame retardant mechanism of Al (OH) 3 and Mg (OH) 2 flame retardants is Al (OH) 3, the flame retardant is referred to as ATH, which accounts for more than 80% of inorganic flame retardants. It has three functions of flame retardant, smoke elimination and filling. It has no volatilization, no poison, little corrosion and low price. It is known as a nuisance free flame retardant. Mg (OH) 2 flame retardant also has the above characteristics, and Mg (OH) 2 is more soft than Al (OH) 3. In the mixing and molding process, the wear of the equipment is less. The thermal decomposition temperature of Mg (OH) 2 is higher, and it does not produce thermal decomposition at the mixing and molding temperature, which affects the quality of the product.
The flame retardancy mechanism of Al (OH) 3 and Mg (OH) 2 is believed to be the result of the synergistic effects of the following mechanisms. Al (OH) 3, Mg (OH) 2 as a filler, the concentration of combustible polymers decreased; dehydration at 300 DEG C temperature endothermic, inhibition of polymer; Al (OH) 3, Mg (OH) 2 release of the water vapor concentration dehydration dilute combustible gas and oxygen, can prevent combustion; Al (OH) 3, Mg (OH) 2 after dehydration in combustible surface natural metal oxide protective layer, isolation effect, to halt its combustion.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
With the development and application of PVC (PVC) flame retardants, the research of new flame retardants and flame-retardant technologies is attracting more and more attention.
Polyvinyl chloride (PVC) two research materials of flame retardant is: (1) a new flame retardant has multiple fire retardant effects (including low toxicity, low smoke flame retardant monomer) design and synthesis application research; (2) to study on the modification of flame retardant PVC material by radiation crosslinking, plasma grafting.
Considering the industrial application, blending and copolymerization of adding flame retardant composition into polyvinyl chloride (PVC) is still the dominant direction of flame retardant materials. Halogenated flame retardants is one of the largest organic flame retardants in the world. It experienced a rapid development in the golden era from 70s to 80s.
However, in recent years, halogenated flame retardants have attracted wide attention in the application process. First, polybrominated two phenyl ether itself and its flame retardant polymer pyrolysis and combustion products toxicity; the other is the preparation of antimony oxide substitutes. So far, halogen-containing flame retardant polymer materials, such as polyvinyl chloride (PVC), CR, and flame retardants containing halogen organic flame retardants, are widely used. Although the halogen - containing flame retardant materials show excellent flame retardancy, they produce more smoke and toxic and corrosive gases (Lu Huaqing) during the combustion.
This gas is the most dangerous factor in fire. Because their diffusion speed is far greater than that of flame diffusion, it prevents people from evacuating and extinguishing in fire and causes serious loss of life and property. From here, we do not lose face about the harmfulness of halogen containing flame retardants to the social environment and our life. Therefore, we must pay attention to the research and development of halogen-free flame retardants.
The application of halogen-free and phosphorous flame retardant can be traced back to the beginning of nineteenth Century. Since the 50s, the wide application of polymer materials has made a great development of organophosphorus flame retardants. In the early 70s, the organophosphorus flame retardants accounted for more than half of the total sales of the American flame retardant, which was mainly used for the flame retardant plasticizing of PVC resin.
With the requirement of flame retardance of polyurethane, polyolefin and various engineering plastics, the research of new organophosphorous flame retardants has been increasingly active. Its developing trend is progressive thermal stability and flame-retardant efficiency, and a series of halogen-free organophosphorous flame retardants with good performance have appeared.
Tris(2-chloroethyl)phosphate(TCEP)
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(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%.
At the beginning of 80s, early for intumescent flame retardant coatings such as flame retardant system was introduced to the flame retardant polymeric materials, in this period, Professor GCamino of Italy conducted a series of pioneering work, and establish and perfect the theory of expansion type flame retardant system and flame retardant mechanism with phosphorus and nitrogen as the main body. Since the 80s, the research of cyclic and cage phosphates and their derivatives has attracted wide attention.
Thus, people familiar to reveal the flame retardant agent on polymer materials is an important content of flame retardant science, with phosphate acid, pentaerythritol as the flame retardant mechanism of carbon source, melamine as the source of the IFR system is called a certain, but due to the thermal oxidation reaction of different flame retardant system in polymer the material is not the same, so the flame retardant mechanism of new flame retardant system remains to be further study.
Inorganic flame retardants such as Al (OH) 3, Mg (OH) 2, zinc borate and inorganic phosphorus compounds, etc. many inorganic flame retardants are filler type, they add large amounts to resins, which will seriously affect the processing technology and the final product performance. In 90s, efforts to improve the performance of inorganic flame retardants were concentrated on 4 aspects: (1) particle size, ultrafine and particle size distribution; (2) surface treatment; (3) less dust or dust-free; (4) microencapsulation.
The flame retardant mechanism of Al (OH) 3 and Mg (OH) 2 flame retardants is Al (OH) 3, the flame retardant is referred to as ATH, which accounts for more than 80% of inorganic flame retardants. It has three functions of flame retardant, smoke elimination and filling. It has no volatilization, no poison, little corrosion and low price. It is known as a nuisance free flame retardant. Mg (OH) 2 flame retardant also has the above characteristics, and Mg (OH) 2 is more soft than Al (OH) 3. In the mixing and molding process, the wear of the equipment is less. The thermal decomposition temperature of Mg (OH) 2 is higher, and it does not produce thermal decomposition at the mixing and molding temperature, which affects the quality of the product.
The flame retardancy mechanism of Al (OH) 3 and Mg (OH) 2 is believed to be the result of the synergistic effects of the following mechanisms. Al (OH) 3, Mg (OH) 2 as a filler, the concentration of combustible polymers decreased; dehydration at 300 DEG C temperature endothermic, inhibition of polymer; Al (OH) 3, Mg (OH) 2 release of the water vapor concentration dehydration dilute combustible gas and oxygen, can prevent combustion; Al (OH) 3, Mg (OH) 2 after dehydration in combustible surface natural metal oxide protective layer, isolation effect, to halt its combustion.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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