News Details
Common phosphate ester flame retardant
2017-9-8 16:43:46
Common phosphate ester flame retardant
At present, the commonly used on the market of phosphate ester flame retardants mainly include alkyl phosphate ester flame retardant, condensed phosphate flame retardants, phenyl phosphate ester, phosphate flame retardants, annular flame retardants and cage type and screw type phosphate flame retardants, etc.
With the increasing awareness of environmental protection, pure halogen flame retardants are about to be withdrawn from the history stage, and there are more and more calls for the halogenation of flame retardants. Because the phosphate ester flame retardant has flame retardant and plasticizing double efficacy, can further improve the flow performance of plastic molding, inhibit the residue after burning, produce toxic gas and corrosive gas less than the halogen flame retardants. Currently, the proportion of phosphorous flame retardants in developed countries and regions is over 20%.
Developed successfully on the market commonly used phosphate flame retardants mainly have three toluene phosphate ester, triphenyl phosphate and phosphoric acid isopropyl benzene ester, tributyl phosphate and phosphoric acid octyl ester and cresyl diphenyl phosphate, etc. They are mostly liquid, less heat-resistant, more volatile, less compatible with polymers.
These days at home and abroad has developed a new type phosphate flame retardants, such as three (1 - oxidation - 1 - phosphorus mixed - 2, 6) - three oxygen mixed double loop,2,2 [2] octane - 4 - methylene) phosphate ester (Trimer) and 1 - oxygen - 4 - hydroxy methyl - 2, 6) - three oxygen mixed 1 - phosphorus mixed double loop,2,2 [2] octane (PEPA). The Trimer features a symmetrical structure, with a mass fraction of 21.2% phosphorus, while PEPA flame retardant phosphorus has a mass fraction of 17.2%. The two kinds of flame retardants are white powder, excellent thermal stability, and good compatibility with polymers.
The marketing status of phosphate-retardant in foreign countries.
With the rapid development of world market economy, the consumption structure of flame retardant in the United States, Japan and Europe has also changed greatly. The consumption of flame retardant of organophosphorus system has been steadily increased, and phosphorous flame retardants gradually replaced halogen flame retardants, especially PC/ABS and PC engineering plastics.
The flame retardant mechanism of phosphor flame retardant is mainly to form the isolation film to achieve the flame retardant effect, and there are two ways to form the isolation film.
The flame retardant mechanism of phosphor flame retardant (1) the thermal degradation product of flame retardant makes the polymer surface dehydrate rapidly and carbonization, and the carbonization layer is formed. Because the single carbon does not produce the flame evaporation combustion and decomposition combustion, therefore, has the flame retardant protection function.
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%.
The flame retardant effect of phosphor flame retardant on oxygen-containing polymers is realized in this way. The reason is that the final product of the pyrolysis of phosphorus compounds is polymetaphosphate, which is a strong dehydrating agent.
The flame retardant mechanism of phosphorus-containing flame retardants (2) the phosphorus-containing flame retardant on the combustion temperature decomposition generated non-volatile vitreous material, it is coated on the surface of polymer, this kind of dense protective layer of isolation layer.
Red phosphorus flame retardant is a kind of excellent performance, with high efficiency, smoke suppression and flame retardant effect of low toxicity, red phosphorus at 400 ℃ under the heat decomposition of depolymerization form white phosphorus, phosphorus in the presence of water vapor was oxidized into sticky phosphorus oxyacid, this type of acid that is over is flame retardant material surface, prompted accelerated dehydration carbonized material surface, form a carbon layer. The liquid film and carbon layer can play a role in storing heat and preventing the exchange of gases. The protection of the lower layer is no longer continuously oxidized and has the effect of flame retardation.
But in the practical application of easy absorption of moisture, oxidation, and emit poisonous gas, dust explosion, and its dark red, with resin in the process of mixing, molding and other processing operations on fire danger, and poor compatibility with resin, should not be dispersed evenly, resulting in a decline in base material physical properties. In order to overcome these shortcomings, the surface modification of red phosphorus particles is one of the important research subjects.
Red phosphorus flame retardant has broad market prospect. Because of the influence of microcapsule can protect the material from the environment, change the material performance, quality, state, or surface segregation active ingredients, reduce a variety of action such as volatile and toxicity, so this technology was applied to inorganic flame retardants, can prevent the migration of inorganic flame retardant, improve the effect of flame retardant, improve the thermal stability, etc.
The development trend and prospect of the common phosphate retardants in China. The production and application of flame retardant in China has entered a steady development stage after the vigorous development in the early 1980s. Nowadays, China's flame retardant industry is in a period of consumption structure transformation, and the proportion of the consumption of phosphate flame retardants in China will rise sharply in the future. As the flame retardant of phosphate ester has many functions such as plasticizer and flame retardant, it still has great development potential and good market space.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
At present, the commonly used on the market of phosphate ester flame retardants mainly include alkyl phosphate ester flame retardant, condensed phosphate flame retardants, phenyl phosphate ester, phosphate flame retardants, annular flame retardants and cage type and screw type phosphate flame retardants, etc.
With the increasing awareness of environmental protection, pure halogen flame retardants are about to be withdrawn from the history stage, and there are more and more calls for the halogenation of flame retardants. Because the phosphate ester flame retardant has flame retardant and plasticizing double efficacy, can further improve the flow performance of plastic molding, inhibit the residue after burning, produce toxic gas and corrosive gas less than the halogen flame retardants. Currently, the proportion of phosphorous flame retardants in developed countries and regions is over 20%.
Developed successfully on the market commonly used phosphate flame retardants mainly have three toluene phosphate ester, triphenyl phosphate and phosphoric acid isopropyl benzene ester, tributyl phosphate and phosphoric acid octyl ester and cresyl diphenyl phosphate, etc. They are mostly liquid, less heat-resistant, more volatile, less compatible with polymers.
These days at home and abroad has developed a new type phosphate flame retardants, such as three (1 - oxidation - 1 - phosphorus mixed - 2, 6) - three oxygen mixed double loop,2,2 [2] octane - 4 - methylene) phosphate ester (Trimer) and 1 - oxygen - 4 - hydroxy methyl - 2, 6) - three oxygen mixed 1 - phosphorus mixed double loop,2,2 [2] octane (PEPA). The Trimer features a symmetrical structure, with a mass fraction of 21.2% phosphorus, while PEPA flame retardant phosphorus has a mass fraction of 17.2%. The two kinds of flame retardants are white powder, excellent thermal stability, and good compatibility with polymers.
The marketing status of phosphate-retardant in foreign countries.
With the rapid development of world market economy, the consumption structure of flame retardant in the United States, Japan and Europe has also changed greatly. The consumption of flame retardant of organophosphorus system has been steadily increased, and phosphorous flame retardants gradually replaced halogen flame retardants, especially PC/ABS and PC engineering plastics.
The flame retardant mechanism of phosphor flame retardant is mainly to form the isolation film to achieve the flame retardant effect, and there are two ways to form the isolation film.
The flame retardant mechanism of phosphor flame retardant (1) the thermal degradation product of flame retardant makes the polymer surface dehydrate rapidly and carbonization, and the carbonization layer is formed. Because the single carbon does not produce the flame evaporation combustion and decomposition combustion, therefore, has the flame retardant protection function.
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%.
The flame retardant effect of phosphor flame retardant on oxygen-containing polymers is realized in this way. The reason is that the final product of the pyrolysis of phosphorus compounds is polymetaphosphate, which is a strong dehydrating agent.
The flame retardant mechanism of phosphorus-containing flame retardants (2) the phosphorus-containing flame retardant on the combustion temperature decomposition generated non-volatile vitreous material, it is coated on the surface of polymer, this kind of dense protective layer of isolation layer.
Red phosphorus flame retardant is a kind of excellent performance, with high efficiency, smoke suppression and flame retardant effect of low toxicity, red phosphorus at 400 ℃ under the heat decomposition of depolymerization form white phosphorus, phosphorus in the presence of water vapor was oxidized into sticky phosphorus oxyacid, this type of acid that is over is flame retardant material surface, prompted accelerated dehydration carbonized material surface, form a carbon layer. The liquid film and carbon layer can play a role in storing heat and preventing the exchange of gases. The protection of the lower layer is no longer continuously oxidized and has the effect of flame retardation.
But in the practical application of easy absorption of moisture, oxidation, and emit poisonous gas, dust explosion, and its dark red, with resin in the process of mixing, molding and other processing operations on fire danger, and poor compatibility with resin, should not be dispersed evenly, resulting in a decline in base material physical properties. In order to overcome these shortcomings, the surface modification of red phosphorus particles is one of the important research subjects.
Red phosphorus flame retardant has broad market prospect. Because of the influence of microcapsule can protect the material from the environment, change the material performance, quality, state, or surface segregation active ingredients, reduce a variety of action such as volatile and toxicity, so this technology was applied to inorganic flame retardants, can prevent the migration of inorganic flame retardant, improve the effect of flame retardant, improve the thermal stability, etc.
The development trend and prospect of the common phosphate retardants in China. The production and application of flame retardant in China has entered a steady development stage after the vigorous development in the early 1980s. Nowadays, China's flame retardant industry is in a period of consumption structure transformation, and the proportion of the consumption of phosphate flame retardants in China will rise sharply in the future. As the flame retardant of phosphate ester has many functions such as plasticizer and flame retardant, it still has great development potential and good market space.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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