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发明公开
CN107793724A 一种聚碳酸酯组合物及其制备方法 无效 - 驳回

一种聚碳酸酯组合物及其制备方法
摘要：
本发明公开了一种聚碳酸酯组合物及其制备方法，按重量份计，包括以下组份：35份-75份的聚碳酸酯；0份-30份的接枝共聚物；5份-25份的阻燃剂；10份-50份的矿物填料；其中，基于聚碳酸酯组合物的总重量，钛元素的重量含量为1ppm-40ppm。本发明通过在聚碳酸酯组合物中添加具有较低可溶性钛含量的含钛化合物以及减少或者避免其它含钛化合物的加入，将聚碳酸酯组合物中钛元素的含量控制在1-40ppm范围内，可以使制得的聚碳酸酯组合物在90℃和90%湿度下烘烤500h后，耐湿热老化性能保持率大于70%，具有明显改善的耐湿热老化性能，同时具有更具高的表面质量，保持优异的机械性能。
摘要（英）：

The invention discloses a polycarbonate composition and a preparation method thereof. The polycarbonate composition comprises, by weight, 35 to 75 parts of polycarbonate, 0 to 30 parts of a graft copolymer, 5 to 25 parts of a flame retardant and 10 to 50 parts of a mineral filler. Based on the total weight of the polycarbonate composition, the weight content of titanium element is 1 ppm to 40 ppm.Through use of the titanium-containing compound having low soluble titanium content in the polycarbonate composition and reduction or prevention of other titanium-containing compounds, the titanium content of the polycarbonate composition is controlled in a range of 1-40 ppm so that the prepared polycarbonate composition has a damp-heat aging resistance retaining rate of more than 70% after beingbaked at 90 DEG C and humidity of 95% for 500h, obviously improves resistance to damp-heat aging and surface quality and keeps excellent mechanical properties.

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