沙伯基础创新塑料(中国)有限公司于1994年02月23日成立。公司经营范围包括:化工产品批发(危险化学品除外);塑料制品批发;合成纤维批发;初级形态塑料及合成树脂制造(化学品、危险化学品除外);塑料薄膜制造;塑料板、管、型材制造;塑料粒料制造等
PEI的注塑模工艺条件:
熔化温度:普通类型材料为340~400℃;增强类型材料为340~415℃。
模具温度:107~175℃,建议模具温度为140℃。压力:700~1500bar。
速度:使用尽可能高的速度。
干燥处理:PEI具有吸湿特性并可导致材料降解。要求湿度值应小于0.02%。建议干燥条件为150℃、4小时的干燥处理。
Pei has strong high temperature stability, even if it is non reinforced Pei, it still has good toughness and strength. Therefore, Pei can be used to make high temperature heat-resistant devices. Pei also has good flame retardant, chemical resistance and electrical insulation properties. The glass transition temperature is very high, up to 215 ℃. Pei also has low shrinkage and good isotropic mechanical properties. Adding glass fiber, carbon fiber or other fillers can achieve the pure of reinforcement and modification; it can also form heat-resistant polymer alloy with other engineering plastics, which can be used for a long time under the working temperature of - 160 ~ 180 ℃. UL stipulates that the long-term service temperature of polyetherimide resin is 338t and 356t. According to the grade, the combustion grade reaches ul94v-010 mil thickness. The oxygen index is 47, and Pei meets the FAA flame retardant and heat release material standards for aircraft internals. It has a glass transition temperature of 419f and allows intermittent use at 392f, resulting in short-term excursion at higher temperatures.
美国保险商实验室规定聚醚树脂的长期使用温度是338T和356T(根据等级),燃烧等级达到UL94V—0(10密耳厚度。)氧指数达47,聚醚酰符合飞机内件要求的FAA阻燃性和热稀放性的材料标准。它的玻璃化转变温度为419F,并允许在392F下间断使用,在更高温度下,产生短期偏移。在356T下,拉伸温度和挠曲模量分别在41和2068MPa以上。用玻纤、碳纤维增强的材料在接近玻璃态转变温度下,具有更高的强度和刚度。
Pei plate is an amorphous plastic. It is a kind of amorphous high-performance polymer. It is made of engineering plastics made of amorphous Pei (polyether imide) by high-temperature extrusion of extruder. China Plastics
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