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Phosphorus-nitrogen mixed flame retardant
2017-9-18 17:41:05
Phosphorus-nitrogen mixed flame retardant
The coactive flame retardant system refers to the flame retardant system composed of two kinds (one is flame retardant, the other is the coactive agent) or two or more components. The flame retardant effect is superior to the combined flame retardant action of the components. In flame retardant technology, phosphorus-nitrogen mixed flame retardants are being widely used, especially in multifunctional flame retardant systems.
Phosphorus - nitrogen flame retardant synergistic reaction is not just simply to improve the flame retardant efficiency of the system, and can reduce the content of some components of flame retardant system, and still can satisfy the requirement of some application field of increasingly stringent flame retardant.
Nitrogen compounds and phosphorus containing compounds are used together and have a significant co-effect. A prominent advantage of phosphorus-nitrogen mixed flame retardants is the low toxicity of the gases released. At the same time, it has the mechanism of carbon forming in the presence of polyhydroxy compounds.
The self-extinguishing POM was prepared with NH4H2PO4 or (NH4)2HPO4 in the mid-60s, and it could also be used (NH4) 3PO4, but it would reduce the thermal stability of POM. A compound of triazine derivatives or a compound that produces triazine derivatives when heated, and a phosphorus compound that produces phosphoric acid and phosphoric acid when heated, burned or hydrolyzed.
The reaction products of diguanide, melamine and ammonium polyphosphate, or phosphorus and triazine fire retardant POM, can reach UL94 V - 1. Flame-retardant POM is used in methyl ethyl phosphate, 1, 2-2 (methyl phosphate) ethanolamine addition and methyl ethyl phosphate/guanidine. The flame retardant POM was also achieved with a kind of aminophosphate ammonium phosphate.
Cresyl Diphenyl Phosphate(CDP) The Production Process
(1) Mixing M-Cresol And Molten Phenol, And Then Adding Calcium And Magnesium Catalyst; When The Temperature Is Less Than 50 ℃, Adding Phosphorus Oxychloride, The Mixture; The Mixture And Then Pressure Row Acid, Negative Pressure Row Acid, The Negative Pressure Distillation Separation, Vacuum System Vacuum ≥ 0.0983Mpa, Collecting The Temperature Of The Fraction At 290 ~ 310 ℃ When The Resulting Fractions, Measured The Acid Value ≤ 0.15mgKOH / G, That Is, Toluene Diphenyl Phosphate. The Production Process Is Simple And The Cost Is Low. The Prepared Toluene Diphenyl Phosphate (Flame Retardant CDP) Conforms To The Standard Of Toluene Diphenyl Phosphate (Flame Retardant CDP), The Yield Is Over 88%, Plasticizer, And Has Good Compatibility, Electrical Insulation, Good Hydrolytic Stability, High Plasticizing Efficiency, Good Wear Resistance Of The Products; Can Be Used In Polyvinyl Chloride, Vinyl Chloride Copolymer, Polyvinyl Alcohol Shrink Aldehydes, Nitrocellulose, Cellulose Acetate, Butyl Acetate Cellulose, Cellulose Resins, Natural And Synthetic Rubbers, And The Like.
Cresyl Diphenyl Phosphate(CDP) Use
This Product Is Flame Retardant Plasticizer, And Resin Compatibility, For Polyvinyl Acetal, Nitrocellulose, Polyvinyl Chloride, Natural Rubber And Synthetic Rubber; Can Also Be Used For Synthetic Lubricants And Hydraulic Oil; Substitutes For Triphenyl Phosphate. Applicable To Polyvinyl Chloride, Vinyl Chloride Copolymer, Polyvinyl Acetal, Nitrocellulose, Ethyl Cellulose, Cellulose Acetate Butyrate And So On.
Hatsuhiko Harashina et al. studied a new type of POM flame retardant system. The compound, which is synthesized from red phosphorus, melamine and phenolic varnish, has a good flame retardant effect on POM as a flame retardant. When red phosphorus flame retardants containing 10%, 10%, 5% novolac, melamine, applying this flame retardant can make the oxygen index of POM by 15.3% to 37.5%, and can reach the standard of UL94 V - 1, when the thickness is 0.8 mm no molten dripping phenomenon.
Based on POM combustion mechanism and combustion characteristic, chooses to ammonium polyphosphate (APP) flame retardants, melamine and pentaerythritol melamine phosphate double salt (MPP) as the auxiliary flame retardants, combined with formaldehyde absorbent polymer of flame retardant system, joined by plasticate constitutes the flame retardant POM POM, tested its oxygen index can be reached 50%, vertical combustion FV - level 0, and the processing conditions the same as the common POM, can satisfy the use requirement.
In 100 POM, anhui chemical research institute added 40 ammonium polyphosphate and pentaerythritol tetrahydrate, 20 melamine and 10 acetaldehyde, which were made to flame retarded POM. The oxygen index reaches 50% and the vertical combustion performance reaches the fv-0 level.
Fan zhen et al. added 40 MPP and polyphosphate (APP) mixture and 20 melamine in 100 POM, which could make the flame retardant POM's oxygen index up to 49.0%. Add 30 in 100 POM MPP and APP mixture, 20 melamine and formaldehyde absorbent October, can make the oxygen index of flame retardant POM was 50.0%, and for UL94 V - level 0, the impact strength decline rate is 18.2% and 23.6%, respectively, less than 30% of the contract "five-year" technological requirements.
Zhao small equality with phosphorus - nitrogen flame retardant, homemade phosphorus - nitrogen flame retardant B with melamine, MCA according to certain proportion added to POM, oxygen index can be obtained up to 42% of the flame retardant POM material and achieve UL94 V - level 0.
The nitrogen flame retardant mainly refers to melamine and its derivatives, which can be used separately or in combination with other flame retardants. This kind of flame retardant has no halogen, low smoke, is stable to heat and light, high efficiency and low price. Can be used for PA, PU, PO, PET, PS, PVC and epoxy resin.
Flame-retardant POM with triazine derivatives or dicyandiamide and its derivatives can be self-extinguishing. Fire retardant POM of 1,3, 6-3 (4, 6-2 cyano-triazine -2 -), the flame retardant product can reach UL94 V - 1.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The coactive flame retardant system refers to the flame retardant system composed of two kinds (one is flame retardant, the other is the coactive agent) or two or more components. The flame retardant effect is superior to the combined flame retardant action of the components. In flame retardant technology, phosphorus-nitrogen mixed flame retardants are being widely used, especially in multifunctional flame retardant systems.
Phosphorus - nitrogen flame retardant synergistic reaction is not just simply to improve the flame retardant efficiency of the system, and can reduce the content of some components of flame retardant system, and still can satisfy the requirement of some application field of increasingly stringent flame retardant.
Nitrogen compounds and phosphorus containing compounds are used together and have a significant co-effect. A prominent advantage of phosphorus-nitrogen mixed flame retardants is the low toxicity of the gases released. At the same time, it has the mechanism of carbon forming in the presence of polyhydroxy compounds.
The self-extinguishing POM was prepared with NH4H2PO4 or (NH4)2HPO4 in the mid-60s, and it could also be used (NH4) 3PO4, but it would reduce the thermal stability of POM. A compound of triazine derivatives or a compound that produces triazine derivatives when heated, and a phosphorus compound that produces phosphoric acid and phosphoric acid when heated, burned or hydrolyzed.
The reaction products of diguanide, melamine and ammonium polyphosphate, or phosphorus and triazine fire retardant POM, can reach UL94 V - 1. Flame-retardant POM is used in methyl ethyl phosphate, 1, 2-2 (methyl phosphate) ethanolamine addition and methyl ethyl phosphate/guanidine. The flame retardant POM was also achieved with a kind of aminophosphate ammonium phosphate.
Cresyl Diphenyl Phosphate(CDP) The Production Process
(1) Mixing M-Cresol And Molten Phenol, And Then Adding Calcium And Magnesium Catalyst; When The Temperature Is Less Than 50 ℃, Adding Phosphorus Oxychloride, The Mixture; The Mixture And Then Pressure Row Acid, Negative Pressure Row Acid, The Negative Pressure Distillation Separation, Vacuum System Vacuum ≥ 0.0983Mpa, Collecting The Temperature Of The Fraction At 290 ~ 310 ℃ When The Resulting Fractions, Measured The Acid Value ≤ 0.15mgKOH / G, That Is, Toluene Diphenyl Phosphate. The Production Process Is Simple And The Cost Is Low. The Prepared Toluene Diphenyl Phosphate (Flame Retardant CDP) Conforms To The Standard Of Toluene Diphenyl Phosphate (Flame Retardant CDP), The Yield Is Over 88%, Plasticizer, And Has Good Compatibility, Electrical Insulation, Good Hydrolytic Stability, High Plasticizing Efficiency, Good Wear Resistance Of The Products; Can Be Used In Polyvinyl Chloride, Vinyl Chloride Copolymer, Polyvinyl Alcohol Shrink Aldehydes, Nitrocellulose, Cellulose Acetate, Butyl Acetate Cellulose, Cellulose Resins, Natural And Synthetic Rubbers, And The Like.
Cresyl Diphenyl Phosphate(CDP) Use
This Product Is Flame Retardant Plasticizer, And Resin Compatibility, For Polyvinyl Acetal, Nitrocellulose, Polyvinyl Chloride, Natural Rubber And Synthetic Rubber; Can Also Be Used For Synthetic Lubricants And Hydraulic Oil; Substitutes For Triphenyl Phosphate. Applicable To Polyvinyl Chloride, Vinyl Chloride Copolymer, Polyvinyl Acetal, Nitrocellulose, Ethyl Cellulose, Cellulose Acetate Butyrate And So On.
Hatsuhiko Harashina et al. studied a new type of POM flame retardant system. The compound, which is synthesized from red phosphorus, melamine and phenolic varnish, has a good flame retardant effect on POM as a flame retardant. When red phosphorus flame retardants containing 10%, 10%, 5% novolac, melamine, applying this flame retardant can make the oxygen index of POM by 15.3% to 37.5%, and can reach the standard of UL94 V - 1, when the thickness is 0.8 mm no molten dripping phenomenon.
Based on POM combustion mechanism and combustion characteristic, chooses to ammonium polyphosphate (APP) flame retardants, melamine and pentaerythritol melamine phosphate double salt (MPP) as the auxiliary flame retardants, combined with formaldehyde absorbent polymer of flame retardant system, joined by plasticate constitutes the flame retardant POM POM, tested its oxygen index can be reached 50%, vertical combustion FV - level 0, and the processing conditions the same as the common POM, can satisfy the use requirement.
In 100 POM, anhui chemical research institute added 40 ammonium polyphosphate and pentaerythritol tetrahydrate, 20 melamine and 10 acetaldehyde, which were made to flame retarded POM. The oxygen index reaches 50% and the vertical combustion performance reaches the fv-0 level.
Fan zhen et al. added 40 MPP and polyphosphate (APP) mixture and 20 melamine in 100 POM, which could make the flame retardant POM's oxygen index up to 49.0%. Add 30 in 100 POM MPP and APP mixture, 20 melamine and formaldehyde absorbent October, can make the oxygen index of flame retardant POM was 50.0%, and for UL94 V - level 0, the impact strength decline rate is 18.2% and 23.6%, respectively, less than 30% of the contract "five-year" technological requirements.
Zhao small equality with phosphorus - nitrogen flame retardant, homemade phosphorus - nitrogen flame retardant B with melamine, MCA according to certain proportion added to POM, oxygen index can be obtained up to 42% of the flame retardant POM material and achieve UL94 V - level 0.
The nitrogen flame retardant mainly refers to melamine and its derivatives, which can be used separately or in combination with other flame retardants. This kind of flame retardant has no halogen, low smoke, is stable to heat and light, high efficiency and low price. Can be used for PA, PU, PO, PET, PS, PVC and epoxy resin.
Flame-retardant POM with triazine derivatives or dicyandiamide and its derivatives can be self-extinguishing. Fire retardant POM of 1,3, 6-3 (4, 6-2 cyano-triazine -2 -), the flame retardant product can reach UL94 V - 1.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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