PPS BR-42B

pps br-42b 填料/增强材料 玻璃纤维增强材料, 40% 填料按重量 特性 低摩擦系数耐磨损性良好 用途电气/电子应用领域 rohs 合规性 rohs 合规 外观 自然色 形式 粒子 加工方法 注射成型

application scope:

widely used in electronic and electrical, mechanicalinstruments, automotive fields, home appliances.

the military field is used for the radiation resistant parts ofnuclear submarines, fiber and film.

performance features:

pps has excellent heat resistance, can withstand 260 ℃, 10seconds of immersion in the electric welding bath, enough to meetthe re of electronic components surface assemblytechnology. pps has excellent elastic recovery, creep resistance athigh temperature and high load, and fatigue resistance for cyclicstress. pps has excellent chemical resistance. at present, nosolvent which can dissolve pps under 200 ℃ has been found, and itis very resistant to inorganic acids, bases and salts.

preparation method:

the main production methods of pps are sodium sulfide method,sulfur solution method, oxidative polymerization method, melting orsolution polycondensation of p-haloxyphenylthiophenol salt,amorphous pps synthesis method and hydrogen sulfide method.

pps combustion identification: the degree of flammability isdifficult, it has the ability to automatically extinguish whenleaving the fire, the flame has a deep red top, the middle part hasa deep orange yellow color, and the bottom part has a light yellowedge. during the combustion process, low amount of carbon chips,coking and foaming appear, and the smell is like sulfur.