阻燃PEI 1000-7101

阻燃性PEI 1000-7101---Pei has a wide range of chemical resistance,including resistance to most hydrocarbons, alcohols and allhalogenated solvents, as well as resistance to inorganic acids andshort-term weak base. Pei is a good material for some halogenatedsolvents. Pei has good anti ultraviolet and y-ray properties, andits tensile strength maintains 94% when it is processed under 400megarad of cobalt radiation. UL stipulates that the long-termservice temperature of Pei resin is 338t and 356t (according to thegrade), and the combustion grade reaches UL94V-0 (10 mil thickness)The oxygen index is 47, and Pei meets the requirements of FAA flameretardancy and heat release material standards for aircraftinteriors. It has a glass transition temperature of 419f and allowsintermittent use at 392f, resulting in short-term excursion athigher temperatures. At 356t, the tensile temperature and flexuralmodulus are above 41 MPa and 2068mpa respectively. Its low level ofionic pollutants is more than 20 megohm. It can be used as aninsulating material for electronic sensor components. Due to thesmall production scale, few varieties and high cost of PEI inChina, most domestic applications rely on imports, resulting inless applications in China. At present, there is a big gap betweendomestic and foreign Pei, and the components used in China,especially in the high-tech field, are imported. It is suggestedthat the material research units should speed up the varietydevelopment and practical research, and broaden the applicationfields, so that this high-performance plastic can better serve thenational economy.

PEI具备很宽范畴的耐酸类，包含耐大部分氮氧化合物、醛类和全部卤化有机溶剂；也能耐强氧化剂和短期内耐碱性。对一部分卤化有机溶剂，PEI是优良的选料。PEI具备非常好的抗紫外光、Y放射线特性，在400兆拉德的钴放射线辐射源下生产加工,抗拉强度维持94%。英国保险商试验室要求PEI环氧树脂的长期性应用溫度是338T和356T（依据级别），点燃级别做到UL94V—0（10密耳薄厚。）阻燃等级达47，PEI合乎飞机场内件规定的FAA阻燃等级和热稀放性的原材料规范。它的玻璃化变化溫度为419F，并容许在392F下中断应用，在高些溫度下，造成短期内偏位。在356T下，拉申溫度和拉伸应变应变速率各自在41和2068MPa之上。它的无机化合物空气污染物低水平，在20兆欧之上，它可作为电子器件感应器元器件的绝缘层材料。因为现阶段在我国的PEI生产规模小、种类少、成本增加，中国运用的大多数靠進口，进而造成在中国的运用较少。现阶段中国与海外PEI差别很大，中国应用的构件尤其是新科技行业的构件全是進口的，提议原材料科学研究企业加快种类开发设计和产品化科学研究，扩宽主要用途，使这一性能卓越塑胶能能够更好地为社会经济服务项目。