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Organic flame retardants for polyolefins
2017-11-21 11:35:27
Organic flame retardants for polyolefins
Attention has been paid to silicon based flame retardants because of their low toxicity. Silicon flame retardant can be divided into two categories: inorganic silicon and silicone flame retardant according to its composition.
The former is mainly SiO2, and has both reinforcing and flame retardant effects. Its flame retardant mechanism is: when the plastic combustion, the formation of SiO2 cover, play a dual role of insulation and shielding. SiO2 is rarely used alone and is often used in conjunction with halides. Organic flame retardant for polyolefin is a new type of halogen-free flame retardant, and also a carbon based smoke suppressant.
As an organic flame retardant, polyolefin flame retardant has the characteristics of high efficiency, non-toxic, low smoke, anti dripping, no pollution, especially because of the organic flame retardant itself as high polymer material, so it has little influence on the performance of the product.
Silicon flame retardant mechanism is: when plastic is burned Si-O bond in the silicone molecule to form Si-C bond, and the white residue carbide composite inorganic layer can prevent the combustion of volatiles escaping, oxygen barrier and resin contact, prevent melt dripping, so as to achieve the purpose of flame retardant.
At present, the silicone flame retardant available on the market is the main agent of SFR-100, it is a kind of transparent, viscous silicone polymer, and a variety of collaborative agents (stearic acid and pentaerythritol phosphate amine salt and aluminium hydroxide mixture, etc.) and use, has been used for flame retardant polyolefin, low dosage can meet the general requirements of flame retardant, high dosage can be given excellent flame retardancy and smoke suppression of the substrate, the flame retardant material can be used for fire safety requirements can not be applied to flame retardant system strictly and the previous place, the polyolefin has good flame retardant effect, and improve the processing performance and mechanical properties of the resin, can give excellent flame retardancy and smoke suppression, for the application of ordinary flame retardant system cannot occasion.
With the increasing demand for environmental protection, silicone based flame retardants and silicone flame retardant based composites will be one of the main development trends of halogen-free flame retardants in the future.
Phosphorus flame retardants play an important role in halogen free flame retardants. They can be classified into inorganic phosphorus and organic phosphorus flame retardants according to their composition and structure. The former is mainly red phosphorus and ammonium polyphosphate, the latter is mainly phosphate and phosphonate.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
CAS No.:13674-87-8
HS: 29199000
Tax Rate (%): 9%
Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP) Raw Materials: Phosphorus Oxychloride, Epichlorohydrin
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
Red phosphorus is an excellent inorganic phosphorus flame retardant, high efficiency, low toxicity and smoke suppression of fire retardant effect, but easy to absorb moisture, oxidation, and release of toxic gases, dust explosive, which restricts the application of them. Commonly used aluminum hydroxide, metal sulfate, synthetic resin as coating wall material of microcapsule surface treatment to improve the performance of red phosphorus.
The future direction for the development of red phosphorus surface treatment: one is through the modification of the encapsulated capsule material, which has both thermal stability and flame retardant plasticizer and other functions, the development of multi function of Microencapsulated Red phosphorus flame retardant; two is the effective compound relationship between all kinds of flame retardant and red phosphorus flame retardant, and the micro capsule and increase the flame retardant effect, improve the mechanical properties of the materials; the three is red with the smoke suppression effect, can find a suitable smoke eliminating agent with a mixture of smoke and promote the development of technology, because the fire smoke is more important than fire. Ammonium polyphosphate (APP) is also a good inorganic phosphorus flame retardant. It is an active research field of phosphorus flame retardants.
APP N P- has high flame retardant element content, good thermal stability, almost neutral product, low price, low toxicity, long flame retardant properties, and can be used alone or in combination with other flame retardants for flame retardancy of plastics.
At high temperature, APP rapidly decomposes into ammonia and phosphoric acid. Ammonia can dilute the oxygen concentration in the gas phase, thus preventing the combustion. In addition, poly (phosphoric acid) is a strong dehydrating agent, which can make the polymer dehydrate and carbonized to form carbon layer, isolate the contact between polymer and oxygen, and prevent combustion in solid phase. Organic phosphorus flame retardant is one of the most important flame retardant varieties, flame retardant and plasticizer has dual effect, can make the full realization of halogen-free flame retardant, improve the flow performance of plastic molding, inhibit the residue after combustion, toxic gas and corrosive gas produced less than halogen flame retardant.
Flame retardant flame retardant mechanism: on the one hand the flame retardant produced by decomposing phosphate, phosphate, polymetaphosphate, these substances have a strong dehydration, can make the polymer surface dehydration and carbonization, and elemental carbon can occur to produce a flame evaporation combustion and decomposition combustion, so with flame retardant effect; on the other hand, flame retardant heat PO free radicals, can absorb large quantities of H and HO free radicals, thereby interrupting the combustion reaction.
Phosphate flame retardant belongs to additive type flame retardant. Because of its rich resources and cheap price, it is widely used. Phosphate is alcohol or phenol and phosphorus trichloride reaction, then hydrolysis. Phosphate flame retardants have been developed and widely used in the market, including triphenyl phosphate, phosphoric acid three phenyl ester, phosphoric acid three isopropyl ester, phosphoric acid three butyl ester, phosphoric acid three octyl ester, toluene base two phenyl phosphate ester and so on. Phosphate ester has many varieties and uses widely, but most phosphate ester products are liquid, heat resistance is poor, and volatile is very large, and the compatibility with polymer is not ideal.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Attention has been paid to silicon based flame retardants because of their low toxicity. Silicon flame retardant can be divided into two categories: inorganic silicon and silicone flame retardant according to its composition.
The former is mainly SiO2, and has both reinforcing and flame retardant effects. Its flame retardant mechanism is: when the plastic combustion, the formation of SiO2 cover, play a dual role of insulation and shielding. SiO2 is rarely used alone and is often used in conjunction with halides. Organic flame retardant for polyolefin is a new type of halogen-free flame retardant, and also a carbon based smoke suppressant.
As an organic flame retardant, polyolefin flame retardant has the characteristics of high efficiency, non-toxic, low smoke, anti dripping, no pollution, especially because of the organic flame retardant itself as high polymer material, so it has little influence on the performance of the product.
Silicon flame retardant mechanism is: when plastic is burned Si-O bond in the silicone molecule to form Si-C bond, and the white residue carbide composite inorganic layer can prevent the combustion of volatiles escaping, oxygen barrier and resin contact, prevent melt dripping, so as to achieve the purpose of flame retardant.
At present, the silicone flame retardant available on the market is the main agent of SFR-100, it is a kind of transparent, viscous silicone polymer, and a variety of collaborative agents (stearic acid and pentaerythritol phosphate amine salt and aluminium hydroxide mixture, etc.) and use, has been used for flame retardant polyolefin, low dosage can meet the general requirements of flame retardant, high dosage can be given excellent flame retardancy and smoke suppression of the substrate, the flame retardant material can be used for fire safety requirements can not be applied to flame retardant system strictly and the previous place, the polyolefin has good flame retardant effect, and improve the processing performance and mechanical properties of the resin, can give excellent flame retardancy and smoke suppression, for the application of ordinary flame retardant system cannot occasion.
With the increasing demand for environmental protection, silicone based flame retardants and silicone flame retardant based composites will be one of the main development trends of halogen-free flame retardants in the future.
Phosphorus flame retardants play an important role in halogen free flame retardants. They can be classified into inorganic phosphorus and organic phosphorus flame retardants according to their composition and structure. The former is mainly red phosphorus and ammonium polyphosphate, the latter is mainly phosphate and phosphonate.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
CAS No.:13674-87-8
HS: 29199000
Tax Rate (%): 9%
Tris (1,3-Dichloro-2-Propyl) Phosphate (TDCPP) Raw Materials: Phosphorus Oxychloride, Epichlorohydrin
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
Red phosphorus is an excellent inorganic phosphorus flame retardant, high efficiency, low toxicity and smoke suppression of fire retardant effect, but easy to absorb moisture, oxidation, and release of toxic gases, dust explosive, which restricts the application of them. Commonly used aluminum hydroxide, metal sulfate, synthetic resin as coating wall material of microcapsule surface treatment to improve the performance of red phosphorus.
The future direction for the development of red phosphorus surface treatment: one is through the modification of the encapsulated capsule material, which has both thermal stability and flame retardant plasticizer and other functions, the development of multi function of Microencapsulated Red phosphorus flame retardant; two is the effective compound relationship between all kinds of flame retardant and red phosphorus flame retardant, and the micro capsule and increase the flame retardant effect, improve the mechanical properties of the materials; the three is red with the smoke suppression effect, can find a suitable smoke eliminating agent with a mixture of smoke and promote the development of technology, because the fire smoke is more important than fire. Ammonium polyphosphate (APP) is also a good inorganic phosphorus flame retardant. It is an active research field of phosphorus flame retardants.
APP N P- has high flame retardant element content, good thermal stability, almost neutral product, low price, low toxicity, long flame retardant properties, and can be used alone or in combination with other flame retardants for flame retardancy of plastics.
At high temperature, APP rapidly decomposes into ammonia and phosphoric acid. Ammonia can dilute the oxygen concentration in the gas phase, thus preventing the combustion. In addition, poly (phosphoric acid) is a strong dehydrating agent, which can make the polymer dehydrate and carbonized to form carbon layer, isolate the contact between polymer and oxygen, and prevent combustion in solid phase. Organic phosphorus flame retardant is one of the most important flame retardant varieties, flame retardant and plasticizer has dual effect, can make the full realization of halogen-free flame retardant, improve the flow performance of plastic molding, inhibit the residue after combustion, toxic gas and corrosive gas produced less than halogen flame retardant.
Flame retardant flame retardant mechanism: on the one hand the flame retardant produced by decomposing phosphate, phosphate, polymetaphosphate, these substances have a strong dehydration, can make the polymer surface dehydration and carbonization, and elemental carbon can occur to produce a flame evaporation combustion and decomposition combustion, so with flame retardant effect; on the other hand, flame retardant heat PO free radicals, can absorb large quantities of H and HO free radicals, thereby interrupting the combustion reaction.
Phosphate flame retardant belongs to additive type flame retardant. Because of its rich resources and cheap price, it is widely used. Phosphate is alcohol or phenol and phosphorus trichloride reaction, then hydrolysis. Phosphate flame retardants have been developed and widely used in the market, including triphenyl phosphate, phosphoric acid three phenyl ester, phosphoric acid three isopropyl ester, phosphoric acid three butyl ester, phosphoric acid three octyl ester, toluene base two phenyl phosphate ester and so on. Phosphate ester has many varieties and uses widely, but most phosphate ester products are liquid, heat resistance is poor, and volatile is very large, and the compatibility with polymer is not ideal.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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