Shanghai Daoqin Plastics Co., Ltd.

flame retardant nylon is nylon more modified product types 之一, can application field/area has automotive system parts, solar energy photovoltaic battery parts, home appliances 插头插 base/seat, electrical device and other and other. modified front nylon flame retardant rating in UL 94 V-2 grade left right, through nylon in add flame retardant modified, modified rear flame retardant rating can to UL 94V-0 grade.

nylon processing temperature degree comparison high, 像PA6 熔 melt temperature degree in 230-280℃, reinforcement PA6 need more high 一点, need 250-280℃. this requirements must use heat stabilized property comparison good flame retardant, 像C-I键 can comparison small flame retardant, heat stabilized property good is use 不, currently flame retardant nylon use comparison more is bromine flame retardant, and poly amine salt type.

bromine flame retardant belongs to flame retardant types, bromine flame retardant use most 广泛 就 is bromine ether. its 常跟锑化 combined material use, bromine ether hot HBr and Sb2O3 reaction formed SbOBr, 而SbOBr受 hot also 放出Sb2O3, its in SbBr3 is flame retardant function main/primary 承担者, process through hot, gas dilute flame retardant mechanism flame retardant.

现 in 都提倡无卤化, causes is flame retardant in flame retardant generate ring issues. is bromine ether has 害没害 in upper has very large 争议, 2005 year 时候欧盟说 it 无害, 2008 year Europe 共同体 method 院跳出 说, 不行, 欧盟说 不算, this is has 害. is most bromine ether to made use.

不 tube/pipe how 说, will flame retardant nylon 无卤化肯定 is most good selection, in 无卤化 selection upper main/primary is and poly amine salt type.

我国 is world 磷资源 large 国, therefore tool has very large cost advantages, but also its flame retardant efficiency relatively high, this make it to comparison application. 红磷 in hot separation understanding rear formed acid, acid 一方面 as is water agent, promote formed 炭, 炭 生 formed reduce from to poly versus hot 传导; 另一方面磷 acid can hot, is it retardant CO oxidation is CO2, reduce add hot process. its through hot, poly versus flame retardant mechanism flame retardant.

但 is in 2010 year 时候, lower 召回门事 parts 引发 人们 for flame retardant use 担忧, its causes in 于红磷会 make product property can in 一定 潜 in safety 隐患. 另一方面, color make it by made in black or color and other deep color nylon products in, therefore shallow color or transparent flame retardant nylon generally use poly amine salt type.

三 poly amine salt type main/primary has poly amine acid salt (MCA), poly amine poly acid salt (MMP) and other and other, tool has property small, property small, flame retardant efficiency high, and additives 不冲突 and other advantages, mono use can make PA达 to UL 94 V–0 grade.

三 poly amine salt type hot separation understanding rear, belt/tape separation hot amount, reduce PA surface temperature degree. from gas versus degree analysis, separation understanding easy 放出氨 gas, nitrogen gas, nitrogen oxidation material, water gas and other gas 体, dilute can 燃, property gas concentrated degree, retardant 碍PA internal 进一步燃烧. from poly versus degree analysis, PA材 material degradation front, promote 残炭生 formed, to 保护基体 internal function.

in use this flame retardant 时候, 出于 reduce cost and flame retardant most large 化 目, 人们会 according to 一 协同效应进行复配, ratio gas versus flame retardant 效果 卤系 flame retardant and solid versus flame retardant 效果 磷系 flame retardant can formed gas - solid versus flame retardant system; nitrogen flame retardant can promote 磷系化 combined material carbon and other and other.

总而言之, flame retardant nylon has for flame retardant can selection, this need specific specific analysis, DuPont, DSM, 艾曼斯, BASF, Germany 道默, 柯曼尼, 恒达利, in new and other has launch various 各样 无卤 flame retardant nylon product types. in environmental protection large trend lower, 无卤化, high 效复配 is will development direction.