News Details
Polystyrene (PS) resin flame retardant
2017-11-6 11:43:01
Polystyrene (PS) resin flame retardant
Can be used for polystyrene (PS) a lot of flame retardant varieties, polystyrene (PS) resin flame retardant according to the chemical composition can be divided into two categories: organic and inorganic flame retardant flame retardant; flame retardant polystyrene (PS) resin by using the method of divided into reaction type and addition type.
Brominated flame retardants in twentieth Century 70~80 in the mid-1990s has experienced a rapid development of the golden age, the C-Br bond is relatively low, the majority of brominated flame retardants at 200-300 deg.c decompose, this temperature range is polystyrene (PS) decomposition temperature range, so the polystyrene (PS) thermal decomposition. Brominated flame retardants also began to decompose, and can capture the degradation reaction of free radicals, thereby delaying or terminate the chain reaction of combustion.
At the same time, the released HBr is a nonflammable gas, which can cover the surface of the material, play a role in obstructing the surface flammable gas, and also inhibit the combustion of materials. This kind of flame retardant can also be used in combination with other compounds (such as three oxidation two antimony), and the flame retardant effect is obviously improved by synergistic effect.
Brominated flame retardants in polystyrene (PS) plays an important role on the application of flame retardant, the main products are four tetrabromobisphenol A, decabromodiphenyl oxide, four bromo two pentaerythritol, brominated polystyrene, five bromine toluene and six bromo alkyl ring twelve. The main disadvantage of brominated flame retardants is to reduce the UV stability of flame retardant substrates, and produce more smoke, corrosive gas and toxic gas when burning, which limits the application of brominated flame retardants.
Intumescent flame retardant and intumescent flame retardant, containing this kind of flame retardant polymer is heated, the surface can generate a uniform layer of carbon foam layer, to heat and oxygen, and smoke suppression effect, and prevent the droplet phenomenon, so it has good flame retardant properties.
Intumescent flame retardant system is generally composed of three parts: acid source (dehydrating agent), carbon source (carbon forming agent) and gas source (nitrogen source, foaming source). Intumescent flame retardant mainly acts as flame retardant by forming porous foam carbon layer in condensed phase. Phosphorous nitrogen flame retardant has the advantages of no halogen, low smoke and low toxicity.
The flame retardant of phosphorus series flame retardant is to accelerate the dehydration and carbonization of the polymer at the initial stage of decomposition. The dehydration and carbonization steps must depend on the oxygen-containing groups of the polymer itself, and the polymers with oxygen-containing groups for their own structures. Their flame retardant effect will be better. For the polystyrene (PS), due to the molecular structure itself without oxygen containing groups, single use flame retardant flame retardant is ineffective, but if and (0H) 3 and Mg (OH) 2 compound can produce synergistic effect, so as to obtain good flame retardant effect.
Tris(2-chloroisopropyl)Phosphate(TCPP)
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
Due to the transport process to avoid collision damage, Tris2-chloropropyl phosphate TCPP packaging methods generally used 250KG galvanized iron drum.
Below to introduce some of Tris2-chloropropyl phosphate TCPP packaging:
Net weight 250KG/ galvanized iron drum (a small cabinet pallet loaded 20 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
Company 1.5 hour drive from Shanghai, the general sent to Shanghai port, the goods from customs inspection to the fastest one week after, the slowest ten days.
In view of the domestic and foreign demand is relatively small clients, also can use 50KG plastic bucket.
If you have special requirements on the Tris2-chloropropyl phosphate TCPP packaging, please contact us, try to meet the packaging requirements of customers.
Phosphoric ester is characterized by its dual functions of flame retardancy and plasticization. It can make the flame retardant realize halogen-free, and its plasticizing function can make plastic molding flow processability better, can inhibit the residual after combustion. The toxic and corrosive gases produced are less than those of halogenated flame retardants.
The main advantages are high efficiency; has little effect on the stability of light or light stabilizers; processing and combustion in low corrosion; prevent resurgence effect; very little or no increase in the quality of flame retardant materials. However, most phosphate flame retardants also have some disadvantages. Such as poor heat resistance, high volatility, compatibility is not ideal, but also in the combustion of drops produced.
The main products containing inorganic flame retardant with red phosphorus flame retardant, ammonium phosphate, ammonium polyphosphate etc.. With the increase of the amount of halogen free flame retardant material, red phosphorus flame retardant dosage is increased. Red phosphorus flame retardant effect better than phosphate ester flame retardant effect. Phosphorus inorganic flame retardants are widely used because of their good thermal stability, non-volatile, no corrosive gas, lasting effect, low toxicity and so on.
Aluminum hydroxide Al (OH) 3 (abbreviated as ATH) decomposes at 200-300 DEG C and absorbs heat of 1967.8 J/g. It is a flame retardant with three functions of flame retardance, smoke suppression and filling. It has the advantages of non-toxic, non corrosive, good stability, non-volatile, high temperature does not produce toxic gas, and low price, wide range of sources.
But as a flame retardant, it also has a large amount of filling, mechanical properties decline, poor processing shortcomings. The temperature at which Al (OH) 3 begins to decompose is in the process of polymer phase transition from condensation to liquid, so the rise of the early temperature of polymer material is suppressed. When the mass fraction of Al (OH) 3 is 40%, the thermal decomposition rate of the material can be significantly slowed down, and the effect of flame retardant and smoke reduction can be reduced.
The magnesium hydroxide decomposes at 340-490 DEG C and absorbs heat of 782.9 J/g, which has good thermal stability and good flame retardancy and smoke elimination effect. It is especially suitable for processing high temperature polystyrene (PS) material. When Mg (OH) 2 was used in polystyrene (PS), the flame retardant effect was better than that of Al (OH) 3 (50%).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Can be used for polystyrene (PS) a lot of flame retardant varieties, polystyrene (PS) resin flame retardant according to the chemical composition can be divided into two categories: organic and inorganic flame retardant flame retardant; flame retardant polystyrene (PS) resin by using the method of divided into reaction type and addition type.
Brominated flame retardants in twentieth Century 70~80 in the mid-1990s has experienced a rapid development of the golden age, the C-Br bond is relatively low, the majority of brominated flame retardants at 200-300 deg.c decompose, this temperature range is polystyrene (PS) decomposition temperature range, so the polystyrene (PS) thermal decomposition. Brominated flame retardants also began to decompose, and can capture the degradation reaction of free radicals, thereby delaying or terminate the chain reaction of combustion.
At the same time, the released HBr is a nonflammable gas, which can cover the surface of the material, play a role in obstructing the surface flammable gas, and also inhibit the combustion of materials. This kind of flame retardant can also be used in combination with other compounds (such as three oxidation two antimony), and the flame retardant effect is obviously improved by synergistic effect.
Brominated flame retardants in polystyrene (PS) plays an important role on the application of flame retardant, the main products are four tetrabromobisphenol A, decabromodiphenyl oxide, four bromo two pentaerythritol, brominated polystyrene, five bromine toluene and six bromo alkyl ring twelve. The main disadvantage of brominated flame retardants is to reduce the UV stability of flame retardant substrates, and produce more smoke, corrosive gas and toxic gas when burning, which limits the application of brominated flame retardants.
Intumescent flame retardant and intumescent flame retardant, containing this kind of flame retardant polymer is heated, the surface can generate a uniform layer of carbon foam layer, to heat and oxygen, and smoke suppression effect, and prevent the droplet phenomenon, so it has good flame retardant properties.
Intumescent flame retardant system is generally composed of three parts: acid source (dehydrating agent), carbon source (carbon forming agent) and gas source (nitrogen source, foaming source). Intumescent flame retardant mainly acts as flame retardant by forming porous foam carbon layer in condensed phase. Phosphorous nitrogen flame retardant has the advantages of no halogen, low smoke and low toxicity.
The flame retardant of phosphorus series flame retardant is to accelerate the dehydration and carbonization of the polymer at the initial stage of decomposition. The dehydration and carbonization steps must depend on the oxygen-containing groups of the polymer itself, and the polymers with oxygen-containing groups for their own structures. Their flame retardant effect will be better. For the polystyrene (PS), due to the molecular structure itself without oxygen containing groups, single use flame retardant flame retardant is ineffective, but if and (0H) 3 and Mg (OH) 2 compound can produce synergistic effect, so as to obtain good flame retardant effect.
Tris(2-chloroisopropyl)Phosphate(TCPP)
The product is used for the soft / hard polyurethane foam, with thermal and hydrolytic stability good, especially suitable for ASTME84 (Level 11) foam, with low viscosity unsaturated polyester resin in low temperature application and phenolic plastics at. This product is also used to grab the foam sealant and sheet production. For polyvinyl chloride, polystyrene, phenolic resin, acrylic resin and rubber, coating, flame retardant, also used for soft and hard polyurethane foam, epoxy resin, polystyrene, cellulose acetate, ethyl cellulose tree and phenolic plastics, polyvinyl acetate and gun type foam sealant production. Particularly recommended for rigid polyurethane foam has excellent thermal and hydrolytic stability is particularly suitable for ASTM84 (II), compound for polyurethane foam and unsaturated resin and phenolic plastics.
Due to the transport process to avoid collision damage, Tris2-chloropropyl phosphate TCPP packaging methods generally used 250KG galvanized iron drum.
Below to introduce some of Tris2-chloropropyl phosphate TCPP packaging:
Net weight 250KG/ galvanized iron drum (a small cabinet pallet loaded 20 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
Company 1.5 hour drive from Shanghai, the general sent to Shanghai port, the goods from customs inspection to the fastest one week after, the slowest ten days.
In view of the domestic and foreign demand is relatively small clients, also can use 50KG plastic bucket.
If you have special requirements on the Tris2-chloropropyl phosphate TCPP packaging, please contact us, try to meet the packaging requirements of customers.
Phosphoric ester is characterized by its dual functions of flame retardancy and plasticization. It can make the flame retardant realize halogen-free, and its plasticizing function can make plastic molding flow processability better, can inhibit the residual after combustion. The toxic and corrosive gases produced are less than those of halogenated flame retardants.
The main advantages are high efficiency; has little effect on the stability of light or light stabilizers; processing and combustion in low corrosion; prevent resurgence effect; very little or no increase in the quality of flame retardant materials. However, most phosphate flame retardants also have some disadvantages. Such as poor heat resistance, high volatility, compatibility is not ideal, but also in the combustion of drops produced.
The main products containing inorganic flame retardant with red phosphorus flame retardant, ammonium phosphate, ammonium polyphosphate etc.. With the increase of the amount of halogen free flame retardant material, red phosphorus flame retardant dosage is increased. Red phosphorus flame retardant effect better than phosphate ester flame retardant effect. Phosphorus inorganic flame retardants are widely used because of their good thermal stability, non-volatile, no corrosive gas, lasting effect, low toxicity and so on.
Aluminum hydroxide Al (OH) 3 (abbreviated as ATH) decomposes at 200-300 DEG C and absorbs heat of 1967.8 J/g. It is a flame retardant with three functions of flame retardance, smoke suppression and filling. It has the advantages of non-toxic, non corrosive, good stability, non-volatile, high temperature does not produce toxic gas, and low price, wide range of sources.
But as a flame retardant, it also has a large amount of filling, mechanical properties decline, poor processing shortcomings. The temperature at which Al (OH) 3 begins to decompose is in the process of polymer phase transition from condensation to liquid, so the rise of the early temperature of polymer material is suppressed. When the mass fraction of Al (OH) 3 is 40%, the thermal decomposition rate of the material can be significantly slowed down, and the effect of flame retardant and smoke reduction can be reduced.
The magnesium hydroxide decomposes at 340-490 DEG C and absorbs heat of 782.9 J/g, which has good thermal stability and good flame retardancy and smoke elimination effect. It is especially suitable for processing high temperature polystyrene (PS) material. When Mg (OH) 2 was used in polystyrene (PS), the flame retardant effect was better than that of Al (OH) 3 (50%).
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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