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Polypropylene butadiene styrene (ABS) flame retardant
2017-11-8 10:52:11
Polypropylene butadiene styrene (ABS) flame retardant
When polypropylene butadiene styrene (ABS) flame retardant is selected, it is necessary to consider whether the impact strength decreases, the thermal deformation temperature, melt flow index and photostability are affected. The commonly used acrylic butadiene styrene (ABS) flame retardant decabromodiphenyl oxide, a brominated epoxy resin (BER), four tetrabromobisphenol A and eight bromo ether phosphate, three phenyl ether, ten bromo two benzene ethane, TBC etc..
Some newly developed polypropylene butadiene styrene (ABS) flame retardants can maintain the original thermal stability, thermal aging, processability, photostability of ABS and no exudation of the flame retardant itself.
In order to ensure the original impact strength, gloss and transparency of ABS, colloidal five oxidation of two antimony can be used as flame retardant synergistic agent.
Flame retardant silicone resin SFR100 and SFR1000 can be effectively used in flame retardant processing, when they are used together with magnesium stearate or ATH, APP and pentaerythritol, not only can promote the formation of carbon layer, to prevent smoke and prevent the spread of flame, improve the smoothness of the surface of polyolefin can. Especially combined with magnesium stearate can improve the impact strength of flame retardant, flame retardant silicone resin so in the processing technology of ABS, HIPS is a good flame retardant, but the price is too expensive, non special purpose, usually very few people interested.
General requirements for flame retardant PA, reach UL94V0 level, mainly by adding flame retardant agent, for example, deca brominated polystyrene (BPS), brominated epoxy resin (BER) etc.. When choosing a flame retardant, it is necessary to consider that the flame retardant is not easy to seep out from PA, and the light resistance of the system and the impact strength of the material will not be reduced.
Add some disadvantages of flame retardant has improved, synthesis of some new phosphine oxide containing active functional group monomer, such as three aryl phosphine oxide (TPO), and nylon 66 salt and hexamethylendiamine copolymer can be prepared with the main chain of TPO nylon 66 copolymers. This kind of flame retardant PA can be used as flame retardant in condensed phase and gas phase. Because flame retardant elements become part of flame retardant PA, it has lasting flame retardancy.
In addition MCA (melamine cyanurate) as flame retardants and red phosphorus compound in PA flame retardant treatment is also often used, also can obtain a good flame retardant effect.
Triphenyl Phosphate (TPP)
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.
PC has a certain flame retardant performance, can reach UL94V2 level, but to obtain V0 level, you need to be fire-retardant treatment. Generally speaking, as the addition of PC type flame retardant with bromine containing aryl phosphate and tetrabromobisphenol A, decabromodiphenyl oxide, four poly two PBDEs, including BrP flame retardant will be more effective. It is necessary to point out that, because three antimony oxide is the catalyst for depolymerization of PC, three antimony oxide two can not be used as a synergistic agent for bromine containing flame retardants in the presence of two antimony.
Like flame retardant ABS, phosphorus containing flame retardant copolymerized PC was prepared by using phosphine oxide monomer containing active functional groups such as TPO.
The flame retardant treatment of PC/PBT, PC/ABS and PC/PET alloy prepared by PC itself is generally based on the addition of flame retardants. PC/PBT brominated polystyrene (BPS), bromine containing aryl phosphate and so on. PC/ABS three phenyl phosphate (TPP), three methyl phosphate (TCP), resorcinol bis phosphate (RDP), and bromine containing aryl phosphate ester, etc.. PC/PETTPP, RDP and so on.
PBT and PET are two important engineering plastics. They are widely used in electronics, instruments and automotive industry. Their flame retardant products are used in parts with high flame retardancy. Their flame retardant treatment is as follows:
Adding brominated flame retardants are commonly used, deca brominated polystyrene (BPS), brominated epoxy resin (BER), double (three - methoxy) ethane. For example: brominated flame retardant additive 10%15%, three oxidation of 3%5% two antimony containing 30% glass fiber PBT can reach UL94V0 level, the oxygen index reached 27%29%. The use of additive flame retardant must pay attention to the dispersion and easy exudation in PBT and PET, as well as the influence on the gloss and mechanical strength of polyester.
Add bromine containing phosphate commonly used is three (dibromophenyl) phosphate (TDBPPE), due to the presence of Br and P elements in the same molecule, thus having halogen phosphorus synergistic effect on PBT and PET in flame retardant efficiency is very high. It should be noted here that in flame retardant treatment often two to add three antimony synergistic oxidation, if the oxygen index test, then the limiting oxygen index increases, but in a test environment enriched in Sb and P seems to have a role against each other, therefore, difficult to burn performance evaluation system with UL94 the vertical burning method is the most appropriate.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
When polypropylene butadiene styrene (ABS) flame retardant is selected, it is necessary to consider whether the impact strength decreases, the thermal deformation temperature, melt flow index and photostability are affected. The commonly used acrylic butadiene styrene (ABS) flame retardant decabromodiphenyl oxide, a brominated epoxy resin (BER), four tetrabromobisphenol A and eight bromo ether phosphate, three phenyl ether, ten bromo two benzene ethane, TBC etc..
Some newly developed polypropylene butadiene styrene (ABS) flame retardants can maintain the original thermal stability, thermal aging, processability, photostability of ABS and no exudation of the flame retardant itself.
In order to ensure the original impact strength, gloss and transparency of ABS, colloidal five oxidation of two antimony can be used as flame retardant synergistic agent.
Flame retardant silicone resin SFR100 and SFR1000 can be effectively used in flame retardant processing, when they are used together with magnesium stearate or ATH, APP and pentaerythritol, not only can promote the formation of carbon layer, to prevent smoke and prevent the spread of flame, improve the smoothness of the surface of polyolefin can. Especially combined with magnesium stearate can improve the impact strength of flame retardant, flame retardant silicone resin so in the processing technology of ABS, HIPS is a good flame retardant, but the price is too expensive, non special purpose, usually very few people interested.
General requirements for flame retardant PA, reach UL94V0 level, mainly by adding flame retardant agent, for example, deca brominated polystyrene (BPS), brominated epoxy resin (BER) etc.. When choosing a flame retardant, it is necessary to consider that the flame retardant is not easy to seep out from PA, and the light resistance of the system and the impact strength of the material will not be reduced.
Add some disadvantages of flame retardant has improved, synthesis of some new phosphine oxide containing active functional group monomer, such as three aryl phosphine oxide (TPO), and nylon 66 salt and hexamethylendiamine copolymer can be prepared with the main chain of TPO nylon 66 copolymers. This kind of flame retardant PA can be used as flame retardant in condensed phase and gas phase. Because flame retardant elements become part of flame retardant PA, it has lasting flame retardancy.
In addition MCA (melamine cyanurate) as flame retardants and red phosphorus compound in PA flame retardant treatment is also often used, also can obtain a good flame retardant effect.
Triphenyl Phosphate (TPP)
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.
PC has a certain flame retardant performance, can reach UL94V2 level, but to obtain V0 level, you need to be fire-retardant treatment. Generally speaking, as the addition of PC type flame retardant with bromine containing aryl phosphate and tetrabromobisphenol A, decabromodiphenyl oxide, four poly two PBDEs, including BrP flame retardant will be more effective. It is necessary to point out that, because three antimony oxide is the catalyst for depolymerization of PC, three antimony oxide two can not be used as a synergistic agent for bromine containing flame retardants in the presence of two antimony.
Like flame retardant ABS, phosphorus containing flame retardant copolymerized PC was prepared by using phosphine oxide monomer containing active functional groups such as TPO.
The flame retardant treatment of PC/PBT, PC/ABS and PC/PET alloy prepared by PC itself is generally based on the addition of flame retardants. PC/PBT brominated polystyrene (BPS), bromine containing aryl phosphate and so on. PC/ABS three phenyl phosphate (TPP), three methyl phosphate (TCP), resorcinol bis phosphate (RDP), and bromine containing aryl phosphate ester, etc.. PC/PETTPP, RDP and so on.
PBT and PET are two important engineering plastics. They are widely used in electronics, instruments and automotive industry. Their flame retardant products are used in parts with high flame retardancy. Their flame retardant treatment is as follows:
Adding brominated flame retardants are commonly used, deca brominated polystyrene (BPS), brominated epoxy resin (BER), double (three - methoxy) ethane. For example: brominated flame retardant additive 10%15%, three oxidation of 3%5% two antimony containing 30% glass fiber PBT can reach UL94V0 level, the oxygen index reached 27%29%. The use of additive flame retardant must pay attention to the dispersion and easy exudation in PBT and PET, as well as the influence on the gloss and mechanical strength of polyester.
Add bromine containing phosphate commonly used is three (dibromophenyl) phosphate (TDBPPE), due to the presence of Br and P elements in the same molecule, thus having halogen phosphorus synergistic effect on PBT and PET in flame retardant efficiency is very high. It should be noted here that in flame retardant treatment often two to add three antimony synergistic oxidation, if the oxygen index test, then the limiting oxygen index increases, but in a test environment enriched in Sb and P seems to have a role against each other, therefore, difficult to burn performance evaluation system with UL94 the vertical burning method is the most appropriate.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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