News Details
High efficiency expansion without halogen flame retardant
2017-10-16 11:27:02
High efficiency expansion without halogen flame retardant
At present, to reach the high flame retardant level of the UL-94 V-0 level, the international generally needs to include 20% ~ 28% of the flame retardants in the materials, and the domestic proportion is generally 26% ~ 30%. In the case of high efficiency expansion without halogen flame retardant, it can reach the ul-94 V-0 level with 18% ~ 20%, which greatly reduces the production cost of flame retardant materials.
Will be added to the efficient expansion halogen-free flame retardant electrical products, chairs, foam packaging materials, environmental protection materials, cable sheath, coating, special rubber products, products of flame retardant level can significantly progress.
China's commodity expansion flame retardant has only started in recent years, and there are already some manufacturers in China. However, compared with foreign products, the flame retardant efficiency of domestic flame retardant is low, the addition quantity is generally larger, and the thermal stability is poor.
It is understood that halogen flame retardant mainly includes expansion type flame retardant and inorganic flame retardant. Expansion type flame retardant is phosphorus and nitrogen as the main flame retardant, flame retardant elements containing this kind of flame retardant polymer thermal decomposition or combustion, the surface can be born a uniform layer of porous carbon foam layer. The foam layer has the function of insulating and isolating oxygen, as well as anti-smoking and preventing droplet. The high-efficiency expansion of halogen free flame retardant meets the requirements of today's anti-smoking and detoxification of the materials, and there is a lot of attention to the development of the expansion of flame retardant products.
Expansion type flame retardant is in recent years, the development of flame retardants of phosphorus and nitrogen as the main, with this kind of flame retardant when heated surface can form a layer of dense foam carbon layer heat insulation, lie between oxygen, smoke suppression and can prevent drop; Good flame retardant performance.
Since 1992, there have been reports of successful studies in China. Since 1992, several research units have been engaged in this development, but no production reports of industrial scale have been reported. There may be two reasons for the failure to achieve scale production: one is that the inorganic acid that has not yet been reflected in the product reflects the phenomenon of moisture absorption on the surface of the flame retardant products; The other one is that the expansion flame retardant is the synthesis of some large molecular compounds;
The last step is to do the opposite. Its mass transfer and heat transfer process are too complicated. Finally on inorganic flame retardants to note is that some people always will antimony trioxide to this category, but strictly speaking antimony trioxide itself is not flame retardant, it's just share of effect and halogen flame retardant agent.
Isopropylphenyl Phosphate(IPPP95) Use:
Isopropylphenyl Phosphate, Flame Retardant IPPP95 Is Used For Rubber Products And PVC Plastic Flame Retardant Conveyor Belt, Cable, Chloroprene Rubber, Nitrile Rubber And Other Synthetic Rubber Flame Retardant Plasticizer, Triisopropyl Phenyl Phosphate Applicable To Fabric Coating, Circuit Boards, Flooring, Textiles, PVC, Phenolic Resin And Other Fields.
Isopropylphenyl Phosphate, Flame Retardant IPPP95 Halogen-Free Phosphate Flame Retardant Plasticizer, Will Not Twice Pollute The Environment; In The Phosphate Ester Species Is A Viscosity, Phosphorus Content Is More Moderate A Model. This Product Is Colorless And Transparent, Good Compatibility, The Use Of Both Flame Retardant And Plasticizer, In The Flame Retardant And Plasticizer To Play A Balance Between The Role, But Also To Make The Processing Of The Same Material And Its Physical Properties.
Aluminum hydroxide and magnesium hydroxide are the main forces in inorganic flame retardants, especially when they are promoted in certain fields. Because of the large amount of inorganic flame retardants need to add, in some special circumstances exceed the amount of the polymer itself, therefore will have very big impact on physical and mechanical properties of the polymer This requires to deal with inorganic flame retardant which particles, surface activation.
The purpose of particulate matter is to allow them to be dispersed uniformly in the polymer and flame retardant in the body phase. The experiments show that the same flame retardant standard can be used to reduce the amount of particulates. The other surface activation is to make inorganic flame retardants compatible with high polymers so as to reduce the mechanical strength of the polymer by adding a large amount of inorganic flame retardants.
Recently some articles have talked about the superiority of the flame retardant of inorganic nanoparticles. Our work experience suggests that the addition of these nanoparticles may be beneficial to the improvement of mechanical strength but will not have much impact on the performance of flame retardants.
A study carried out by the department of materials and translational research at the university of lille in France showed that the use of halogen flame retardants could be used to effectively flame retardant polypropylene (PP) in oyster shells. The results showed that the addition of the phosphate-based ExolitAP 760 to the high performance polypropylene complex could greatly enhance its thermal stability.
Oyster shells are used as special mineral fillers to avoid adverse environmental impacts and high energy consumption during standard mining. In addition, the method can also reduce landfill by recycling. ExolitAP can effectively improve the environmental protection of the compound: ExolitAP is not toxic and will not accumulate in the environment. Its biodegradability allows it to degrade into the natural world of phosphate. In addition, the addition of this flame retardant dose is low, and has little impact on mechanical properties.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
At present, to reach the high flame retardant level of the UL-94 V-0 level, the international generally needs to include 20% ~ 28% of the flame retardants in the materials, and the domestic proportion is generally 26% ~ 30%. In the case of high efficiency expansion without halogen flame retardant, it can reach the ul-94 V-0 level with 18% ~ 20%, which greatly reduces the production cost of flame retardant materials.
Will be added to the efficient expansion halogen-free flame retardant electrical products, chairs, foam packaging materials, environmental protection materials, cable sheath, coating, special rubber products, products of flame retardant level can significantly progress.
China's commodity expansion flame retardant has only started in recent years, and there are already some manufacturers in China. However, compared with foreign products, the flame retardant efficiency of domestic flame retardant is low, the addition quantity is generally larger, and the thermal stability is poor.
It is understood that halogen flame retardant mainly includes expansion type flame retardant and inorganic flame retardant. Expansion type flame retardant is phosphorus and nitrogen as the main flame retardant, flame retardant elements containing this kind of flame retardant polymer thermal decomposition or combustion, the surface can be born a uniform layer of porous carbon foam layer. The foam layer has the function of insulating and isolating oxygen, as well as anti-smoking and preventing droplet. The high-efficiency expansion of halogen free flame retardant meets the requirements of today's anti-smoking and detoxification of the materials, and there is a lot of attention to the development of the expansion of flame retardant products.
Expansion type flame retardant is in recent years, the development of flame retardants of phosphorus and nitrogen as the main, with this kind of flame retardant when heated surface can form a layer of dense foam carbon layer heat insulation, lie between oxygen, smoke suppression and can prevent drop; Good flame retardant performance.
Since 1992, there have been reports of successful studies in China. Since 1992, several research units have been engaged in this development, but no production reports of industrial scale have been reported. There may be two reasons for the failure to achieve scale production: one is that the inorganic acid that has not yet been reflected in the product reflects the phenomenon of moisture absorption on the surface of the flame retardant products; The other one is that the expansion flame retardant is the synthesis of some large molecular compounds;
The last step is to do the opposite. Its mass transfer and heat transfer process are too complicated. Finally on inorganic flame retardants to note is that some people always will antimony trioxide to this category, but strictly speaking antimony trioxide itself is not flame retardant, it's just share of effect and halogen flame retardant agent.
Isopropylphenyl Phosphate(IPPP95) Use:
Isopropylphenyl Phosphate, Flame Retardant IPPP95 Is Used For Rubber Products And PVC Plastic Flame Retardant Conveyor Belt, Cable, Chloroprene Rubber, Nitrile Rubber And Other Synthetic Rubber Flame Retardant Plasticizer, Triisopropyl Phenyl Phosphate Applicable To Fabric Coating, Circuit Boards, Flooring, Textiles, PVC, Phenolic Resin And Other Fields.
Isopropylphenyl Phosphate, Flame Retardant IPPP95 Halogen-Free Phosphate Flame Retardant Plasticizer, Will Not Twice Pollute The Environment; In The Phosphate Ester Species Is A Viscosity, Phosphorus Content Is More Moderate A Model. This Product Is Colorless And Transparent, Good Compatibility, The Use Of Both Flame Retardant And Plasticizer, In The Flame Retardant And Plasticizer To Play A Balance Between The Role, But Also To Make The Processing Of The Same Material And Its Physical Properties.
Aluminum hydroxide and magnesium hydroxide are the main forces in inorganic flame retardants, especially when they are promoted in certain fields. Because of the large amount of inorganic flame retardants need to add, in some special circumstances exceed the amount of the polymer itself, therefore will have very big impact on physical and mechanical properties of the polymer This requires to deal with inorganic flame retardant which particles, surface activation.
The purpose of particulate matter is to allow them to be dispersed uniformly in the polymer and flame retardant in the body phase. The experiments show that the same flame retardant standard can be used to reduce the amount of particulates. The other surface activation is to make inorganic flame retardants compatible with high polymers so as to reduce the mechanical strength of the polymer by adding a large amount of inorganic flame retardants.
Recently some articles have talked about the superiority of the flame retardant of inorganic nanoparticles. Our work experience suggests that the addition of these nanoparticles may be beneficial to the improvement of mechanical strength but will not have much impact on the performance of flame retardants.
A study carried out by the department of materials and translational research at the university of lille in France showed that the use of halogen flame retardants could be used to effectively flame retardant polypropylene (PP) in oyster shells. The results showed that the addition of the phosphate-based ExolitAP 760 to the high performance polypropylene complex could greatly enhance its thermal stability.
Oyster shells are used as special mineral fillers to avoid adverse environmental impacts and high energy consumption during standard mining. In addition, the method can also reduce landfill by recycling. ExolitAP can effectively improve the environmental protection of the compound: ExolitAP is not toxic and will not accumulate in the environment. Its biodegradability allows it to degrade into the natural world of phosphate. In addition, the addition of this flame retardant dose is low, and has little impact on mechanical properties.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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