Low-temperature-cracking-resistant PC composite material and preparation method thereof

The invention provides a low-temperature-cracking-resistant PC composite material and a preparation method thereof, and relates to the technical field of PC material processing. The low-temperature-cracking-resistant PC composite material is obtained by rolling, mixing, blending and extruding a PC-based material, a shell-core polymer, high rubber powder, silane modified silicon carbide, chitin, an antioxidant and a lubricant. The low-temperature impact-resistant communication shell material overcomes the defects in the prior art, has high low-temperature impact resistance while guaranteeing the basic mechanical property of the material, and can completely meet the application requirement of the communication shell material in the high and cold area. 本发明提供一种耐低温开裂的PC复合材料及其制备方法，涉及PC材料加工技术领域。所述耐低温开裂的PC复合材料由PC基材料、壳核型聚合物、高胶粉、硅烷改性碳化硅、甲壳素、抗氧剂和润滑剂通滚混料后共混挤出得到。本发明克服了现有技术的不足，在保证材料基础力学性能的同时，使其具有较高的低温抗冲击性能，可以完全满足高寒区域通信壳体材料的应用需求。