News Details
Flame retardant for plastic
2017-9-16 23:47:44
Flame retardant for plastic: polypropylene flame retardant
The mechanism of halogen-antimony is the mechanism of flame retardation. Common phosphorus-containing flame retardants is ten pbdes, hexabromocyclododecane, eight bromine ether, tetrabromobisphenol A, etc., coupled with flame retardant agent antimony trioxide, association with adding quantity is little, flame retardant effect good characteristic. However, halogen flame retardants have been criticized by green environmental groups, so that some countries have been restricted and banned. However, countries such as the United States and Japan still allow the use of halogen flame retardants, a developing country, for at least a decade or more.
The PP is treated with bromoalkyl phosphate. This kind of flame retardant has the PBr synergistic effect, which makes the flame retardant effect significantly, while also improving the rheological and processing properties of PP, and has little influence on the physical mechanical properties of PP.
(3) in the past decade, in PP flame retardant technology in Turin, Italy, a professor at the university of Camino pioneering expansion type flame retardant has played a huge role, this kind of P N series flame retardant with high efficiency, high thermal and light stability, low toxicity, low smoke, low corrosion, small effects on processing and mechanical performance, can not cause environment pollution. In PP, you can add 2530 copies to reach UL94V 0. We have the production report of the expanded flame retardant products in China.
Polypropylene, flame retardant of graft copolymer of PBR and triethyl propylene rubber. These fire-retardant treatments have high impact strength and can be used as engineering plastics in some situations.
The so-called inorganic fillers of flame retardant polypropylene are referred to as aluminum hydroxide and magnesium hydroxide, which have the effect of flame retardant and smoke suppression. But to achieve the desired effect, particulate and surface treatment are key technologies applied to different plastics. It is important to choose a suitable surfactant so as to make it compatible with plastic and distribute it evenly in the plastic without affecting the mechanical properties of plastic.
Since ATH and magnesium hydroxide can act as flame retardants in different temperature ranges, the combination of the two can cause the plastic to play a continuous flame retardant effect within the wider range of temperature. Here is to emphasize that when deal with PP with magnesium hydroxide, to achieve a better flame retarding effect and suitable mechanical properties, adding magnesium hydroxide in the mixing process, appropriate USES two-step feeding way, it will get better results than a charging.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Flame retardant for plastic: polyethylene flame retardant
(1) in general, applicable to flame retardant PP can be used in PE processing, but due to differences in the structure of the two, thermal stability and pyrolysis temperature is different, some aromatic bromide flame retardants, such as ten pbdes in PE especially in the application of LDPE effect will be better.
It is also pointed out that chlorinated flame retardants such as chlorinated paraffin and enemy clones are better used in some cases. For example, the enemy clone is used in the PE insulation layer of the cable, so that PE has excellent voltage resistance and flame retardant effect. Some literatures report that chlorinated flame retardants and bromine flame retardants can produce some kind of synergistic effect, although it is not obvious, but it is better than the flame retardant effect alone.
Flame retardant for plastic: polychloro-ethylene flame retardant
It is necessary to add plasticizer to PVC to make it soft PVC. It should be emphasized that in addition to flame retardants, smoke suppression is also an urgent problem for PVC.
(1) selection of flame retardant plasticizer - aryl phosphate, aryl alkyl phosphate ester here carefully choose flame retardant plasticizer, avoiding the increase flame retardant performance deterioration in the other properties of plastic at the same time, paying special attention to the material of low temperature flexibility.
The traditional anti-smoking agent of smoke inhibitor is trioxide molybdenum, magnesium hydroxide, ammonium trimolybdate, zinc borate, ferrocene, etc. Adding molybdenum, which is generally measured in 2% of 3%, can reduce the amount of smoke by 30% 80%, which can be better if used in combination with ATH, magnesium hydroxide or calcium carbonate.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The mechanism of halogen-antimony is the mechanism of flame retardation. Common phosphorus-containing flame retardants is ten pbdes, hexabromocyclododecane, eight bromine ether, tetrabromobisphenol A, etc., coupled with flame retardant agent antimony trioxide, association with adding quantity is little, flame retardant effect good characteristic. However, halogen flame retardants have been criticized by green environmental groups, so that some countries have been restricted and banned. However, countries such as the United States and Japan still allow the use of halogen flame retardants, a developing country, for at least a decade or more.
The PP is treated with bromoalkyl phosphate. This kind of flame retardant has the PBr synergistic effect, which makes the flame retardant effect significantly, while also improving the rheological and processing properties of PP, and has little influence on the physical mechanical properties of PP.
(3) in the past decade, in PP flame retardant technology in Turin, Italy, a professor at the university of Camino pioneering expansion type flame retardant has played a huge role, this kind of P N series flame retardant with high efficiency, high thermal and light stability, low toxicity, low smoke, low corrosion, small effects on processing and mechanical performance, can not cause environment pollution. In PP, you can add 2530 copies to reach UL94V 0. We have the production report of the expanded flame retardant products in China.
Polypropylene, flame retardant of graft copolymer of PBR and triethyl propylene rubber. These fire-retardant treatments have high impact strength and can be used as engineering plastics in some situations.
The so-called inorganic fillers of flame retardant polypropylene are referred to as aluminum hydroxide and magnesium hydroxide, which have the effect of flame retardant and smoke suppression. But to achieve the desired effect, particulate and surface treatment are key technologies applied to different plastics. It is important to choose a suitable surfactant so as to make it compatible with plastic and distribute it evenly in the plastic without affecting the mechanical properties of plastic.
Since ATH and magnesium hydroxide can act as flame retardants in different temperature ranges, the combination of the two can cause the plastic to play a continuous flame retardant effect within the wider range of temperature. Here is to emphasize that when deal with PP with magnesium hydroxide, to achieve a better flame retarding effect and suitable mechanical properties, adding magnesium hydroxide in the mixing process, appropriate USES two-step feeding way, it will get better results than a charging.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Flame retardant for plastic: polyethylene flame retardant
(1) in general, applicable to flame retardant PP can be used in PE processing, but due to differences in the structure of the two, thermal stability and pyrolysis temperature is different, some aromatic bromide flame retardants, such as ten pbdes in PE especially in the application of LDPE effect will be better.
It is also pointed out that chlorinated flame retardants such as chlorinated paraffin and enemy clones are better used in some cases. For example, the enemy clone is used in the PE insulation layer of the cable, so that PE has excellent voltage resistance and flame retardant effect. Some literatures report that chlorinated flame retardants and bromine flame retardants can produce some kind of synergistic effect, although it is not obvious, but it is better than the flame retardant effect alone.
Flame retardant for plastic: polychloro-ethylene flame retardant
It is necessary to add plasticizer to PVC to make it soft PVC. It should be emphasized that in addition to flame retardants, smoke suppression is also an urgent problem for PVC.
(1) selection of flame retardant plasticizer - aryl phosphate, aryl alkyl phosphate ester here carefully choose flame retardant plasticizer, avoiding the increase flame retardant performance deterioration in the other properties of plastic at the same time, paying special attention to the material of low temperature flexibility.
The traditional anti-smoking agent of smoke inhibitor is trioxide molybdenum, magnesium hydroxide, ammonium trimolybdate, zinc borate, ferrocene, etc. Adding molybdenum, which is generally measured in 2% of 3%, can reduce the amount of smoke by 30% 80%, which can be better if used in combination with ATH, magnesium hydroxide or calcium carbonate.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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