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Flame retardant for polypropylene resin
2017-9-30 11:51:02
Flame retardant for polypropylene resin
There are many kinds of flame retardants available for polypropylene. The chemical composition of polypropylene resin can be classified into two categories: organic flame retardant and inorganic flame retardant; Polypropylene resin is divided into reactive type and additive by using flame retardant.
Polypropylene resins are representative of flame retardants, including bromine, phosphorous nitrogen, phosphorus, aluminum hydroxide, magnesium hydroxide and so on.
Bromide flame retardants in the mid 70 s ~ 80 s of the 20th century has experienced a golden age of rapid development, due to the low C - Br key in the key can, most of the bromide flame retardants will break down under the 200-300 ℃, the temperature range was also polypropylene decomposition temperature range, so the polypropylene thermal decomposition, the bromine flame retardants are also beginning to decomposition, and can capture the degradation reaction of free radicals, to slow or stop the combustion chain reaction.
At the same time, the release of HBr itself is a kind of hard gas, which can cover the surface of the material, which can prevent the gas from burning on the surface, and also inhibit the combustion of the material. This kind of flame retardant can be used in combination with other compounds (such as antimony trioxide), and the effect of the flame retardant can be improved obviously through synergistic effect.
Bromide flame retardants in pp flame retardant application has an important position, the current main products have ten pbdes, tetrabromobisphenol A, four bromine two season, bromine e four generation of polystyrene, five bromine toluene and hexabromocyclododecane, etc. The main disadvantage of bromine flame retardant is to reduce the anti-ultraviolet stability of the flame retardant substrate, and the smoke, corrosive gas and poisonous gases are generated when combustion, so that its application is limited.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
(A Small Cabinet Loaded With 16 Tons), 1000KG / IB Bucket (A Small Cabinet Installed 18 Tons) Or 23 Tons (1, 3-Dichloro-2-Propyl) Phosphate (TDCPP) Packing: Net Weight 200KG / ISOTANK.
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.
Phosphorus - nitrogen flame retardant is also called the expansion type flame retardant, contain this kind of flame retardant polymer when heated, surface is able to generate a uniform layer of the carbon foam layer, insulation, oxygen and smoke suppression effect, and prevent the phenomenon of molten drops, it has a good flame retardant performance. The expansive flame retardant system is generally composed of three parts: sour-source (dehydrating agent), carbon source (carbon) and gas source (nitrogen source, foaming source). The expansion type flame retardant is mainly used to flame retardant of the carbon layer of porous foam. Phosphorous nitrogen flame retardant has the advantages of halogen, low smoke and low toxicity.
The flame retardant effect of phosphor flame retardant is caused by the dehydration and carbonation of the early decomposition of high polymer. This process of dehydration and carbonization must depend on the oxygen-containing groups of the polymer itself, and it has a high polymer with oxygen groups in its own structure. Their flame retardant effects will be better. For polypropylene, due to the molecular structure of itself without oxygen containing groups, when used alone phosphorus-containing flame retardant flame retardant effect is not good, but if with (0 h) 3 and the distribution of such as Mg (OH) 2 can produce synergies, good flame retardant effect is obtained.
The commonly used flame retardants of organophosphorus are triphenyl phosphate, trimethylphenyl phosphate, trimethylene phosphate, propylene phosphate and butyl phosphatate. The characteristics of phosphate ester are the dual functions of flame retardant and plasticizing. It can make the flame retardant without halogenation, and its plasticizing function can improve the flow processing when plastic is formed, and can restrain the residue after combustion. The toxic gases and corrosive gases produced are less than halogen flame retardants.
Its main advantage is high efficiency; The effect of light stability or light stabilizer is small. Small corrosivity in processing and combustion; Having the effect of obstructing the rekindling; Rarely or not to increase the quality of flame retardant materials. But most phosphaters have some drawbacks. For example, poor heat resistance, high volatility and compatibility are not ideal, and there is a drop in the combustion.
The main products of phosphor inorganic flame retardant are red phosphorus flame retardant, ammonium phosphate and ammonium polyphosphate. As the dosage of halogen-free flame retardants is increased, the dosage of red phosphorus flame retardants is increasing. The flame retardant effect of red phosphorus is better than the flame retardant effect of phosphate ester. Phosphorous inorganic flame retardants have been widely used due to their excellent thermal stability, non-volatile, non-corrosive gases, long-lasting effects and low toxicity.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
There are many kinds of flame retardants available for polypropylene. The chemical composition of polypropylene resin can be classified into two categories: organic flame retardant and inorganic flame retardant; Polypropylene resin is divided into reactive type and additive by using flame retardant.
Polypropylene resins are representative of flame retardants, including bromine, phosphorous nitrogen, phosphorus, aluminum hydroxide, magnesium hydroxide and so on.
Bromide flame retardants in the mid 70 s ~ 80 s of the 20th century has experienced a golden age of rapid development, due to the low C - Br key in the key can, most of the bromide flame retardants will break down under the 200-300 ℃, the temperature range was also polypropylene decomposition temperature range, so the polypropylene thermal decomposition, the bromine flame retardants are also beginning to decomposition, and can capture the degradation reaction of free radicals, to slow or stop the combustion chain reaction.
At the same time, the release of HBr itself is a kind of hard gas, which can cover the surface of the material, which can prevent the gas from burning on the surface, and also inhibit the combustion of the material. This kind of flame retardant can be used in combination with other compounds (such as antimony trioxide), and the effect of the flame retardant can be improved obviously through synergistic effect.
Bromide flame retardants in pp flame retardant application has an important position, the current main products have ten pbdes, tetrabromobisphenol A, four bromine two season, bromine e four generation of polystyrene, five bromine toluene and hexabromocyclododecane, etc. The main disadvantage of bromine flame retardant is to reduce the anti-ultraviolet stability of the flame retardant substrate, and the smoke, corrosive gas and poisonous gases are generated when combustion, so that its application is limited.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
(A Small Cabinet Loaded With 16 Tons), 1000KG / IB Bucket (A Small Cabinet Installed 18 Tons) Or 23 Tons (1, 3-Dichloro-2-Propyl) Phosphate (TDCPP) Packing: Net Weight 200KG / ISOTANK.
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.
Phosphorus - nitrogen flame retardant is also called the expansion type flame retardant, contain this kind of flame retardant polymer when heated, surface is able to generate a uniform layer of the carbon foam layer, insulation, oxygen and smoke suppression effect, and prevent the phenomenon of molten drops, it has a good flame retardant performance. The expansive flame retardant system is generally composed of three parts: sour-source (dehydrating agent), carbon source (carbon) and gas source (nitrogen source, foaming source). The expansion type flame retardant is mainly used to flame retardant of the carbon layer of porous foam. Phosphorous nitrogen flame retardant has the advantages of halogen, low smoke and low toxicity.
The flame retardant effect of phosphor flame retardant is caused by the dehydration and carbonation of the early decomposition of high polymer. This process of dehydration and carbonization must depend on the oxygen-containing groups of the polymer itself, and it has a high polymer with oxygen groups in its own structure. Their flame retardant effects will be better. For polypropylene, due to the molecular structure of itself without oxygen containing groups, when used alone phosphorus-containing flame retardant flame retardant effect is not good, but if with (0 h) 3 and the distribution of such as Mg (OH) 2 can produce synergies, good flame retardant effect is obtained.
The commonly used flame retardants of organophosphorus are triphenyl phosphate, trimethylphenyl phosphate, trimethylene phosphate, propylene phosphate and butyl phosphatate. The characteristics of phosphate ester are the dual functions of flame retardant and plasticizing. It can make the flame retardant without halogenation, and its plasticizing function can improve the flow processing when plastic is formed, and can restrain the residue after combustion. The toxic gases and corrosive gases produced are less than halogen flame retardants.
Its main advantage is high efficiency; The effect of light stability or light stabilizer is small. Small corrosivity in processing and combustion; Having the effect of obstructing the rekindling; Rarely or not to increase the quality of flame retardant materials. But most phosphaters have some drawbacks. For example, poor heat resistance, high volatility and compatibility are not ideal, and there is a drop in the combustion.
The main products of phosphor inorganic flame retardant are red phosphorus flame retardant, ammonium phosphate and ammonium polyphosphate. As the dosage of halogen-free flame retardants is increased, the dosage of red phosphorus flame retardants is increasing. The flame retardant effect of red phosphorus is better than the flame retardant effect of phosphate ester. Phosphorous inorganic flame retardants have been widely used due to their excellent thermal stability, non-volatile, non-corrosive gases, long-lasting effects and low toxicity.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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