News Details
Flame retardant for PA
2017-10-19 12:04:00
Flame retardant for PA
So far, the PA's flame retardant most is based on halogen compounds, smoke, toxic, corrosive gases generated in flame retardant brings to the production, application and environment of the secondary disasters and international debate on dioxin problem, make this kind of flame retardant on flame retardant stage despite the has a pivotal position, but people used to substitute for and is committed to looking for this kind of flame retardant, halogen-free flame retardants.
Red phosphorus is one of them, but because of its color problem, its application in light-colored products is limited, and it can release toxic phosphine. Halogen-free flame retardant expansion, on the other hand, not only can give is flame retardant materials in such aspects as performance has better comprehensive balance, and has a wide applicability on color, so halogen-free flame retardant expansion technique has been gradually attention by people.
For the non-halogen expansion of flame retardant white nylon 66, China is still in the basic research stage, the international market white flame retardant nylon is just entering the production stage.
Since the 1980s, we have introduced A3X series of products with red phosphorus as flame retardant. Launched in 1995 KR4455 based on inorganic hydroxide flame retardant flame retardant nylon 66 products, because it improves the interface characteristics of inorganic fillers and the matrix resin, made up for this kind of flame retardant on the influence of material mechanical properties. In other flame retardant varieties, BASF also introduces the product of the melamine - flame retardant system, KR4205. A flame retardant with red phosphorus as PA will contain color. Some products are required to be themselves, so red phosphorus can sometimes be limited.
Triethyl phosphate (TEP)
Triethyl phosphate(Flame retardants TEP) is mainly used as the high boiling point solvents,catalysts, plasticizers, flame retardants, ethylating agent, and organic peroxide stabilizer. And Triethyl phosphate(TEP) is widely used in medicine, pesticides, vinyl ketone, resins, hydraulic oil and other production areas. In Japan, 70% of this product is used in catalyst.
Packing: NW 200KG / galvanized iron (a small cabinet loaded 16 tons a child care), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.
A brand for Latalnid68 HZVOH flame retardant nylon copolymer, it is suitable for film products production and application of the electrical and electronic, its workability and fire resistance ability is very good, so for the connector, miniature socket production application, etc.
Flame retardant nylon packing material can control the development of electrostatic, metal products, curing technology has obtained the flame retardancy and eliminate the static charge, for this new film roll, belt, shield and cloth, etc.
In addition, Rhodia has developed a variety of flame-retardant nylon complexes in the complex, mainly organic phosphating as the flame retardant, and the products are ehnyl C52G3MZ25. Edward D.W iron compounds was studied in excluding the application of halogen flame retardant nylon, they mainly use of inorganic compounds, polyphenylene oxide, zinc borate role to improve the content of carbon compounds, in order to improve the flame retardant effect.
Piete Gijsman et al. studied the melamine cyanuric acid salt in PA6 and PA "the difference of the flame retardant mechanism, they think that the main degradation products are already in PA6 phthalein amine, and the main degradation product is cyclopentanone PA66, think the MC in the effect is better than in PA6, PA66, they also demonstrate the MC in PA6 and PA66 effect happened under the 350-450 ℃ is a chemical reaction.
Based on this, in recent years, people have developed a new type of PA ten bromine diphenyl oxide flame retardant, it like ten bromine biphenyl ether has higher bromine content and better flame retardant efficiency, but it has good thermal stability and light stability, and not easy to frosting, etc, can replace 10 pbdes used in nylon.
The selection of flame retardants should be taken into consideration of many factors, such as compatibility with materials, cost performance, fire resistance, flame retardant stability, etc. According to its different fire retardants mechanism and compatibility and flame retardant materials, in different applications have their own advantages, to replace not only there is no need to blindly, may increase the risk of new instead. Compared with the long - time risk assessment data perfect bromine flame retardant, other types of flame retardant toxicology and environmental impact studies are less, there is a possibility of unknown risk. A recent study by the university of Amsterdam also suggests that alternatives to halogen flame retardants often lack sufficient ecological toxicity test data.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
So far, the PA's flame retardant most is based on halogen compounds, smoke, toxic, corrosive gases generated in flame retardant brings to the production, application and environment of the secondary disasters and international debate on dioxin problem, make this kind of flame retardant on flame retardant stage despite the has a pivotal position, but people used to substitute for and is committed to looking for this kind of flame retardant, halogen-free flame retardants.
Red phosphorus is one of them, but because of its color problem, its application in light-colored products is limited, and it can release toxic phosphine. Halogen-free flame retardant expansion, on the other hand, not only can give is flame retardant materials in such aspects as performance has better comprehensive balance, and has a wide applicability on color, so halogen-free flame retardant expansion technique has been gradually attention by people.
For the non-halogen expansion of flame retardant white nylon 66, China is still in the basic research stage, the international market white flame retardant nylon is just entering the production stage.
Since the 1980s, we have introduced A3X series of products with red phosphorus as flame retardant. Launched in 1995 KR4455 based on inorganic hydroxide flame retardant flame retardant nylon 66 products, because it improves the interface characteristics of inorganic fillers and the matrix resin, made up for this kind of flame retardant on the influence of material mechanical properties. In other flame retardant varieties, BASF also introduces the product of the melamine - flame retardant system, KR4205. A flame retardant with red phosphorus as PA will contain color. Some products are required to be themselves, so red phosphorus can sometimes be limited.
Triethyl phosphate (TEP)
Triethyl phosphate(Flame retardants TEP) is mainly used as the high boiling point solvents,catalysts, plasticizers, flame retardants, ethylating agent, and organic peroxide stabilizer. And Triethyl phosphate(TEP) is widely used in medicine, pesticides, vinyl ketone, resins, hydraulic oil and other production areas. In Japan, 70% of this product is used in catalyst.
Packing: NW 200KG / galvanized iron (a small cabinet loaded 16 tons a child care), 1000KG/IB barrels (a small cabinet loaded 18 tons), or 23 tons ISOTANK.
A brand for Latalnid68 HZVOH flame retardant nylon copolymer, it is suitable for film products production and application of the electrical and electronic, its workability and fire resistance ability is very good, so for the connector, miniature socket production application, etc.
Flame retardant nylon packing material can control the development of electrostatic, metal products, curing technology has obtained the flame retardancy and eliminate the static charge, for this new film roll, belt, shield and cloth, etc.
In addition, Rhodia has developed a variety of flame-retardant nylon complexes in the complex, mainly organic phosphating as the flame retardant, and the products are ehnyl C52G3MZ25. Edward D.W iron compounds was studied in excluding the application of halogen flame retardant nylon, they mainly use of inorganic compounds, polyphenylene oxide, zinc borate role to improve the content of carbon compounds, in order to improve the flame retardant effect.
Piete Gijsman et al. studied the melamine cyanuric acid salt in PA6 and PA "the difference of the flame retardant mechanism, they think that the main degradation products are already in PA6 phthalein amine, and the main degradation product is cyclopentanone PA66, think the MC in the effect is better than in PA6, PA66, they also demonstrate the MC in PA6 and PA66 effect happened under the 350-450 ℃ is a chemical reaction.
Based on this, in recent years, people have developed a new type of PA ten bromine diphenyl oxide flame retardant, it like ten bromine biphenyl ether has higher bromine content and better flame retardant efficiency, but it has good thermal stability and light stability, and not easy to frosting, etc, can replace 10 pbdes used in nylon.
The selection of flame retardants should be taken into consideration of many factors, such as compatibility with materials, cost performance, fire resistance, flame retardant stability, etc. According to its different fire retardants mechanism and compatibility and flame retardant materials, in different applications have their own advantages, to replace not only there is no need to blindly, may increase the risk of new instead. Compared with the long - time risk assessment data perfect bromine flame retardant, other types of flame retardant toxicology and environmental impact studies are less, there is a possibility of unknown risk. A recent study by the university of Amsterdam also suggests that alternatives to halogen flame retardants often lack sufficient ecological toxicity test data.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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