News Details
Flame retardant for abs resin
2017-10-30 12:28:29
Flame retardant for abs resin
Abs is acrylonitrile (acrylonitrile), 1, 3-butadiene (butadiene) and styrene (styrene). It is widely used in military, electronic, automobile, communication, daily furniture and other fields. However, abs limit oxygen index of only 18.3 to 20.0% (less than 21%), inflammables, when burnt, and release a lot of black smoke and toxic gases, greatly limits its application and so on abs resin with flame retardant become the research focus and hot spot.
In the case of abs resin, additive chemical retardant is the most effective. At present, the main methods to improve the performance of abs resin are: (1) change the composition and structure of abs copolymer. The four components of flame retardant copolymer were obtained by polymerization of anti-butadienate or tribromostyrene as the fourth monomer with styrene, butadiene and acrylonitrile.
The flame retardant durability is good, but it needs to be added in the process of abs resin. (2) mixed high flame retardant resin. Such as polyvinyl chloride (PVC), chlorinated polyvinyl chloride (cpe), etc. The method requires high flame retardant resin to be effective. It is necessary to influence the inherent performance of abs resin. (3) direct addition of flame retardants for abs resin. This method is convenient, widely used and versatile, and is the most commonly used method of abs resin flame retardant technology.
Phosphorus-containing flame retardants: choosing abs flame retardant, various factors should be considered, but the most important is the physical - mechanical properties of impact strength, heat distortion temperature (HDT), the stability of the melt flow index and uv resistance. The mechanical properties of abs are not affected by the tensile strength and bending strength. In the current widespread use of bromine flame retardants, particularly recommended use: btbpoe (melting point 220 ℃), obdpo melting point (130 ℃ ~ 150 ℃ or 80 ℃ ~ 150 ℃) and tbbpa, melting point 180 ℃), the three is the most commonly used in industry of flame retardants.
Chlorinated flame retardants (CFRS) include chlorinated paraffin, methyl chlorinated stearate, hexachlorocyclic triphosphate, and clone (DCRP), etc.
In abs's flame retardant formulation system, tbbpa has the best flame retardant performance, oxygen index (loi) 33.6%, ul-94v-0; Second, the loi of btbpie was 31.2%, and the ul-94v-0 level. The loi of dbdpo again is 30.4%, ul-94v-0.
Halogen-antimony synergistic flame retardant: in order to improve the flame retardant efficiency, coefficent flame retardant technology (se) is often used, and the most important coefficent is sb2o3. The co-effect model of halogen-antimony coactive system is composed of free radical trapping mechanism, coagulation phase and gas-phase flame retardant mechanism and physical function.
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.
Physical factors are: (1) the antimony halide vapor can stay longer in the combustion zone, can dilute combustible gases, and three antimony halide vapor density is big, by covering the surface of the polymer matrix can be isolated from the heat, oxygen, form a "blanket" effect. (2) the decomposition of halogen oxide is an endothermic reaction, which can effectively reduce the temperature and decomposition rate of the polymer. (3) the surface effect of liquid and solid trihalide particles can reduce flame energy. (4) the generated carbon layer closes the polymer and prevents the combustible gas from escaping from the polymer into the flame zone. (5) in halogen flame retardant polymer - antimony system, halogen - antimony system can absorb polymer pyrolysis of combustible gas combustion energy when it hits, so in order to maintain the combustion, must increase the external heat flux in order to improve the quality and speed of the polymer gasification, otherwise the flameout. Thermochemical calculation shows that the effects of many halogen-antimony flame retardants are related to thermal decomposition and heat capacity.
Bromine flame retardant: sb2o3 is a better flame retardant of abs with obdpo and tbbpa. It has a significant coeffect, especially with obppo and PDBS and sb2o3.
18%tbbpa 6%sb2o3 flame retardant system loi was 28.1%; 18% of obdpo 6%sb2o3 flame retardant system loi was 27.9%.
Dbdpe (dbdpe) sb2o3 pairs abs flame retardant. Abs is 75.4 PHR and dbdpe at 17.0 PHR and loi is 28.1%, ul-94v-0.
The f additive is used to flame retardant abs for br-sb system. A small amount of polytetrafluoroethylene (ptef) is added to improve the flame retardant properties of the material. The ptef oxygen index with 0.5 PHR (number of shares) in abs flame retardant system reached 28.5%, which was higher than the non-added loi17.5%, up to 11%, and the flame retardant ul-94v-0.
Bromide: antimony trioxide polyethylene (cpe) is the flame retardant of abs. Bromide is: ber (there are three types of bert-1, ber-2 and ber- 3), obdpo, tbbpa, btbpoe, bpbpe, btbpie.
To make abs reach ul-94v- 0. Adopt a better formula system: the bromine content is 8%, sb2o34% and cpe6 %. In order to make the bromine content in the formula reach 8%, the bert-1 dosage should be 15.8%, ber-2 is 14.5%, ber-3 is 13.8%; Obdpo is 10%, tbbpa is 13.5%, btbpoe is 11.4%, bpbpe is 9.8%, btbpie is 11.9%.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Abs is acrylonitrile (acrylonitrile), 1, 3-butadiene (butadiene) and styrene (styrene). It is widely used in military, electronic, automobile, communication, daily furniture and other fields. However, abs limit oxygen index of only 18.3 to 20.0% (less than 21%), inflammables, when burnt, and release a lot of black smoke and toxic gases, greatly limits its application and so on abs resin with flame retardant become the research focus and hot spot.
In the case of abs resin, additive chemical retardant is the most effective. At present, the main methods to improve the performance of abs resin are: (1) change the composition and structure of abs copolymer. The four components of flame retardant copolymer were obtained by polymerization of anti-butadienate or tribromostyrene as the fourth monomer with styrene, butadiene and acrylonitrile.
The flame retardant durability is good, but it needs to be added in the process of abs resin. (2) mixed high flame retardant resin. Such as polyvinyl chloride (PVC), chlorinated polyvinyl chloride (cpe), etc. The method requires high flame retardant resin to be effective. It is necessary to influence the inherent performance of abs resin. (3) direct addition of flame retardants for abs resin. This method is convenient, widely used and versatile, and is the most commonly used method of abs resin flame retardant technology.
Phosphorus-containing flame retardants: choosing abs flame retardant, various factors should be considered, but the most important is the physical - mechanical properties of impact strength, heat distortion temperature (HDT), the stability of the melt flow index and uv resistance. The mechanical properties of abs are not affected by the tensile strength and bending strength. In the current widespread use of bromine flame retardants, particularly recommended use: btbpoe (melting point 220 ℃), obdpo melting point (130 ℃ ~ 150 ℃ or 80 ℃ ~ 150 ℃) and tbbpa, melting point 180 ℃), the three is the most commonly used in industry of flame retardants.
Chlorinated flame retardants (CFRS) include chlorinated paraffin, methyl chlorinated stearate, hexachlorocyclic triphosphate, and clone (DCRP), etc.
In abs's flame retardant formulation system, tbbpa has the best flame retardant performance, oxygen index (loi) 33.6%, ul-94v-0; Second, the loi of btbpie was 31.2%, and the ul-94v-0 level. The loi of dbdpo again is 30.4%, ul-94v-0.
Halogen-antimony synergistic flame retardant: in order to improve the flame retardant efficiency, coefficent flame retardant technology (se) is often used, and the most important coefficent is sb2o3. The co-effect model of halogen-antimony coactive system is composed of free radical trapping mechanism, coagulation phase and gas-phase flame retardant mechanism and physical function.
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.
Physical factors are: (1) the antimony halide vapor can stay longer in the combustion zone, can dilute combustible gases, and three antimony halide vapor density is big, by covering the surface of the polymer matrix can be isolated from the heat, oxygen, form a "blanket" effect. (2) the decomposition of halogen oxide is an endothermic reaction, which can effectively reduce the temperature and decomposition rate of the polymer. (3) the surface effect of liquid and solid trihalide particles can reduce flame energy. (4) the generated carbon layer closes the polymer and prevents the combustible gas from escaping from the polymer into the flame zone. (5) in halogen flame retardant polymer - antimony system, halogen - antimony system can absorb polymer pyrolysis of combustible gas combustion energy when it hits, so in order to maintain the combustion, must increase the external heat flux in order to improve the quality and speed of the polymer gasification, otherwise the flameout. Thermochemical calculation shows that the effects of many halogen-antimony flame retardants are related to thermal decomposition and heat capacity.
Bromine flame retardant: sb2o3 is a better flame retardant of abs with obdpo and tbbpa. It has a significant coeffect, especially with obppo and PDBS and sb2o3.
18%tbbpa 6%sb2o3 flame retardant system loi was 28.1%; 18% of obdpo 6%sb2o3 flame retardant system loi was 27.9%.
Dbdpe (dbdpe) sb2o3 pairs abs flame retardant. Abs is 75.4 PHR and dbdpe at 17.0 PHR and loi is 28.1%, ul-94v-0.
The f additive is used to flame retardant abs for br-sb system. A small amount of polytetrafluoroethylene (ptef) is added to improve the flame retardant properties of the material. The ptef oxygen index with 0.5 PHR (number of shares) in abs flame retardant system reached 28.5%, which was higher than the non-added loi17.5%, up to 11%, and the flame retardant ul-94v-0.
Bromide: antimony trioxide polyethylene (cpe) is the flame retardant of abs. Bromide is: ber (there are three types of bert-1, ber-2 and ber- 3), obdpo, tbbpa, btbpoe, bpbpe, btbpie.
To make abs reach ul-94v- 0. Adopt a better formula system: the bromine content is 8%, sb2o34% and cpe6 %. In order to make the bromine content in the formula reach 8%, the bert-1 dosage should be 15.8%, ber-2 is 14.5%, ber-3 is 13.8%; Obdpo is 10%, tbbpa is 13.5%, btbpoe is 11.4%, bpbpe is 9.8%, btbpie is 11.9%.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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