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crc潤滑劑的使用注意事項

日期：2025-08-30 11:57

浏覽次數：3956

摘要：

　　crc潤滑劑的品种相当多，常用的外潤滑劑有石蜡、硬脂酸及其盐类；内潤滑劑有相对低分子量的PE、PTFE、PP等。这些低分子量的聚合物不但是优良内潤滑劑，而且也是很好的外潤滑劑。有时候，一种潤滑劑的效果往往不理想，需要几种潤滑劑配合使用，由此而产生了复合潤滑劑，可以起到多方面的作用。效果更好。潤滑劑的用量一般为0.5%-1%。

　　在选用crc潤滑劑时，要遵循下列几条原则：

　　1、如果聚合物的流动性已可满足成型工艺的需要，则主要考虑外潤滑劑是否满足工艺要求，是否便于脱模，以保证内外平衡。

　　2、外润滑是否理想，应看它能在成型时，在塑料表面能否形成完整的液体薄膜.因此，外潤滑劑的熔点应与成型温度相接近，但要注意有10—30℃的差异，这样才能形成完整薄膜。

　　3、與聚合物的相容性大小適中，內外潤滑作用平衡，不噴霜，不易結垢。

　　4、crc潤滑劑的耐热性和化学稳定性优良，在加工中不分解，不挥发、不腐蚀设备，不污染制品、没有毒性。

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