News Details
Plasticized polyvinyl chloride resin flame retardant
2017-11-22 11:47:24
Plasticized polyvinyl chloride resin flame retardant
In recent years, no new flame retardant system has been developed in the world. However, research teams around the world have made great progress in promoting the development of existing flame retardants to halogen free systems.
Antimony oxide mixture has the advantages of one component flame retardant system and masterbatch. The cost of antimony compounds is relatively inexpensive and has been widely used as a flame retardant. However, antimony is a toxic material, and its use in most countries is subject to the relevant laws and regulations, so there is a gradual replacement of antimony compounds flame retardants or reduce the use of trends.
The plasticized polyvinyl chloride resin flame retardant can be mixed with antimony compounds and halogen flame retardants, and the two has good synergistic effect, and is very suitable for making plasticized polyvinyl chloride resin flame retardant. Halogen free polymers need to be mixed with a suitable bromine or chloride compound to obtain certain flame retardancy.
At present, the most important synergistic flame retardant compounds are antimony oxide and halogen donor compounds. The application prospect of metal oxides and other metal compounds is also promising, especially for thermoplastics engineering plastics. Another important development direction of plasticized polyvinyl chloride resin flame retardant technology is to mix new antimony oxide as a synergistic flame retardant.
Among the many alternatives to antimony compounds, zinc sulfide is the most potential advantage. Up to now, zinc sulfide has only been considered as a pigment, "target=" _blank "> pigment. Zinc sulfide alone or as a synergistic compound of new flame retardants have been published.
Although the mechanism of synergistic effect of flame retardant has not been fully mastered, the flame retardant additives and multifunctional flame retardant system prepared by synergistic effect of flame retardants are becoming more and more popular, and are likely to become the important characteristics of the development of future flame retardants.
The flame retardant technology, flame retardant synergistic effect not only to produce more effective flame retardant system, but also enables to reduce the usage of chemical reagents and other flame retardants as possible, and can make a positive contribution to improve the efficiency of flame retardant flame retardant to meet the increasingly stringent standards of production and use.
Many minerals have synergistic effects with organic halogen flame retardants and organophosphorus flame retardants. Synergistic reactions can also be observed in thermosetting materials composed of borate and hydrated minerals. Adding inorganic mineral fillers to intumescent fireproof materials can better control the morphology of intumescent structures of flame retardant materials after contact flame. More and more experience has proved that although the apparent price of inorganic mineral fillers is increasing, in fact, the addition of suitable inorganic mineral fillers can reduce the production cost by reducing a large number of other active additives or by providing multi-functional performance.
Tris(2-chloroethyl)phosphate(TCEP)
There Are Three Industrial Methods: Phosphorus Oxychloride And Chloroethanol Reaction; Phosphorus Trichloride And Chloroethanol Reaction Reoxidation; Phosphorus Oxychloride And Ethylene Oxide Reaction (Industrial Commonly Used Method).
1, Phosphorus Oxychloride And Ethylene Oxide To Sodium Metavanadate As A Catalyst, At 50 ° C Reaction, The Reaction By Neutralization, Washing, Vacuum Dehydration Off The Low Boiling, That Is, The Finished Product. Chlorohydrin Can Also Be Used As Raw Materials, And Phosphorus Oxychloride Or Phosphorus Trichloride Reaction To Produce Tris (2-Chloro Ethyl) Phosphate.
2, 326 Kg Of Phosphorus Oxychloride And 1.0 Kg Of Sodium Metavanadate Into The Reactor. The Nitrogen In The Autoclave Was Driven By Nitrogen, And 650 Kg Of Ethylene Oxide Was Introduced Under Vacuum And Stirred At 45 To 50 ° C For 2 To 3 Hours. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated. Finished Product.
3. Put Phosphorus Oxychloride And Sodium Metaphosphate Into The Reactor. Nitrogen To Drive The Air, In The Vacuum Under The Access To Ethylene Oxide, At 45 ~ 50 ℃ Stirring 2 ~ 3h. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated Finished.
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%.
The melamine added to the inorganic filler flame retardant prepared composite flame retardant, and then the composite flame retardant prepared by mixing polypropylene, usually can improve the flame retardant behavior of flame retardant UL94 test, but also can eliminate the separate use of inorganic mineral filler produced by the afterglow phenomenon.
This composite flame retardant also reduces the quality of flame retardant polypropylene, resulting in economic benefits; also allows the use of relatively inexpensive inert fillers, such as high territories and talc, which do not exhibit flame retardant properties when used alone.
In the use of brominated flame retardants, some inorganic mineral fillers can be used to improve the mechanical properties of the system, but also increase transparency and reduce the corrosion of smoke generated during combustion, thereby reducing the potential harm to the environment. In particular,
magnesium hydroxide and aluminum hydroxide can greatly improve the flame retardant performance and reduce the smoke release level, allowing a substantial reduction in the use of additives, and will not sacrifice the flame retardant properties and smoke suppression characteristics.
Borate salt is a new type of synergistic flame retardant, whether for halogen flame retardants or halogen-free flame retardants. Although borate has been known to have synergistic flame retardancy for a long time, the widespread use of three antimony oxide has led to the use of borate in cold weather.
Brominated flame retardants generate hydrogen bromide in vapor phase, and hydrogen bromide in turn can terminate the free radicals produced by the flame, thereby further inhibiting the flame. Some of the flame retardant treated thermoplastics produce droplets or soot droplets when burning, and borate can effectively curb the development trend of this situation.
A phosphorus nitrogen synergistic system polymer flame retardant has been successfully developed in china. Its characteristics are: flame retardant mainly occurs in the condensed phase, does not produce toxic gas, belongs to the expansion of carbon flame retardant system, which is compared with halogen flame retardant has a big advantage. Because the product is a high molecular compound, it does not drop when heated, and its heat resistance is better than that of the general low molecular compound; block copolymerization can be used to regulate the molecular weight and P / N ratio artificially.
The optimum combination of three factors, carbon source, acid source and gas source for the flame retardant system of expanding formation is obtained. The flame retardant at room temperature is a strong hygroscopic white solid, soluble in water, water solution is colorless, tasteless, non-toxic transparent liquid, as a commodity is its 1:1 aqueous solution, mainly suitable for natural fiber flame retardant treatment.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
In recent years, no new flame retardant system has been developed in the world. However, research teams around the world have made great progress in promoting the development of existing flame retardants to halogen free systems.
Antimony oxide mixture has the advantages of one component flame retardant system and masterbatch. The cost of antimony compounds is relatively inexpensive and has been widely used as a flame retardant. However, antimony is a toxic material, and its use in most countries is subject to the relevant laws and regulations, so there is a gradual replacement of antimony compounds flame retardants or reduce the use of trends.
The plasticized polyvinyl chloride resin flame retardant can be mixed with antimony compounds and halogen flame retardants, and the two has good synergistic effect, and is very suitable for making plasticized polyvinyl chloride resin flame retardant. Halogen free polymers need to be mixed with a suitable bromine or chloride compound to obtain certain flame retardancy.
At present, the most important synergistic flame retardant compounds are antimony oxide and halogen donor compounds. The application prospect of metal oxides and other metal compounds is also promising, especially for thermoplastics engineering plastics. Another important development direction of plasticized polyvinyl chloride resin flame retardant technology is to mix new antimony oxide as a synergistic flame retardant.
Among the many alternatives to antimony compounds, zinc sulfide is the most potential advantage. Up to now, zinc sulfide has only been considered as a pigment, "target=" _blank "> pigment. Zinc sulfide alone or as a synergistic compound of new flame retardants have been published.
Although the mechanism of synergistic effect of flame retardant has not been fully mastered, the flame retardant additives and multifunctional flame retardant system prepared by synergistic effect of flame retardants are becoming more and more popular, and are likely to become the important characteristics of the development of future flame retardants.
The flame retardant technology, flame retardant synergistic effect not only to produce more effective flame retardant system, but also enables to reduce the usage of chemical reagents and other flame retardants as possible, and can make a positive contribution to improve the efficiency of flame retardant flame retardant to meet the increasingly stringent standards of production and use.
Many minerals have synergistic effects with organic halogen flame retardants and organophosphorus flame retardants. Synergistic reactions can also be observed in thermosetting materials composed of borate and hydrated minerals. Adding inorganic mineral fillers to intumescent fireproof materials can better control the morphology of intumescent structures of flame retardant materials after contact flame. More and more experience has proved that although the apparent price of inorganic mineral fillers is increasing, in fact, the addition of suitable inorganic mineral fillers can reduce the production cost by reducing a large number of other active additives or by providing multi-functional performance.
Tris(2-chloroethyl)phosphate(TCEP)
There Are Three Industrial Methods: Phosphorus Oxychloride And Chloroethanol Reaction; Phosphorus Trichloride And Chloroethanol Reaction Reoxidation; Phosphorus Oxychloride And Ethylene Oxide Reaction (Industrial Commonly Used Method).
1, Phosphorus Oxychloride And Ethylene Oxide To Sodium Metavanadate As A Catalyst, At 50 ° C Reaction, The Reaction By Neutralization, Washing, Vacuum Dehydration Off The Low Boiling, That Is, The Finished Product. Chlorohydrin Can Also Be Used As Raw Materials, And Phosphorus Oxychloride Or Phosphorus Trichloride Reaction To Produce Tris (2-Chloro Ethyl) Phosphate.
2, 326 Kg Of Phosphorus Oxychloride And 1.0 Kg Of Sodium Metavanadate Into The Reactor. The Nitrogen In The Autoclave Was Driven By Nitrogen, And 650 Kg Of Ethylene Oxide Was Introduced Under Vacuum And Stirred At 45 To 50 ° C For 2 To 3 Hours. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated. Finished Product.
3. Put Phosphorus Oxychloride And Sodium Metaphosphate Into The Reactor. Nitrogen To Drive The Air, In The Vacuum Under The Access To Ethylene Oxide, At 45 ~ 50 ℃ Stirring 2 ~ 3h. Evaporation Of Excess Ethylene Oxide After Alkali Neutralization To Neutral, Washed, Vacuum Dehydrated Finished.
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%.
The melamine added to the inorganic filler flame retardant prepared composite flame retardant, and then the composite flame retardant prepared by mixing polypropylene, usually can improve the flame retardant behavior of flame retardant UL94 test, but also can eliminate the separate use of inorganic mineral filler produced by the afterglow phenomenon.
This composite flame retardant also reduces the quality of flame retardant polypropylene, resulting in economic benefits; also allows the use of relatively inexpensive inert fillers, such as high territories and talc, which do not exhibit flame retardant properties when used alone.
In the use of brominated flame retardants, some inorganic mineral fillers can be used to improve the mechanical properties of the system, but also increase transparency and reduce the corrosion of smoke generated during combustion, thereby reducing the potential harm to the environment. In particular,
magnesium hydroxide and aluminum hydroxide can greatly improve the flame retardant performance and reduce the smoke release level, allowing a substantial reduction in the use of additives, and will not sacrifice the flame retardant properties and smoke suppression characteristics.
Borate salt is a new type of synergistic flame retardant, whether for halogen flame retardants or halogen-free flame retardants. Although borate has been known to have synergistic flame retardancy for a long time, the widespread use of three antimony oxide has led to the use of borate in cold weather.
Brominated flame retardants generate hydrogen bromide in vapor phase, and hydrogen bromide in turn can terminate the free radicals produced by the flame, thereby further inhibiting the flame. Some of the flame retardant treated thermoplastics produce droplets or soot droplets when burning, and borate can effectively curb the development trend of this situation.
A phosphorus nitrogen synergistic system polymer flame retardant has been successfully developed in china. Its characteristics are: flame retardant mainly occurs in the condensed phase, does not produce toxic gas, belongs to the expansion of carbon flame retardant system, which is compared with halogen flame retardant has a big advantage. Because the product is a high molecular compound, it does not drop when heated, and its heat resistance is better than that of the general low molecular compound; block copolymerization can be used to regulate the molecular weight and P / N ratio artificially.
The optimum combination of three factors, carbon source, acid source and gas source for the flame retardant system of expanding formation is obtained. The flame retardant at room temperature is a strong hygroscopic white solid, soluble in water, water solution is colorless, tasteless, non-toxic transparent liquid, as a commodity is its 1:1 aqueous solution, mainly suitable for natural fiber flame retardant treatment.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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