高抗冲高模量聚碳酸酯复合材料的制备  

Preparation of Polycarbonate Composites with High Shock Resistance and Modulus

作　　者：李红刚 祁博 马述伟 

机构地区：[1]东莞奥能工程塑料有限公司,广东东莞523382

出　　处：《工程塑料应用》2015年第3期45-49,共5页Engineering Plastics Application

摘　　要：以α–磷酸锆(α–Zr P)为刚性研磨介质,超高分子量聚乙烯(PE–UHMW)为抗冲改性剂,聚碳酸酯(PC)作为基体材料,通过母粒法(两步熔融共混法)制备了高抗冲高模量复合材料。研究了PE–UHMW添加量及几种无机填料对复合材料力学性能及微观结构的影响。结果表明,当PE–UHMW含量为8份、α–Zr P含量为2份时,复合材料的冲击强度、弯曲弹性模量达到最大值。α–Zr P的加入还使复合材料的其它力学性能得到了一定程度改善。经扫描电子显微镜分析表明,α–Zr P的加入起到了助分散的作用,促进了PE–UHMW在基体树脂中的均匀分散,所以冲击性能得到进一步提高。A kind of polycarbonate（PC） composite with high shock-resistance and modulus was developed with α -ZrP as rigid attrition medium, ultra-high molecular weight polyethylene（PE-UHMW） as toughening modifier and PC as matrix material by means of master batch method. The effects of PE-UHMW content and several kinds of inorganic fillers on mechanical properties and microcosmic structure of the composite were investigated. The results show that when the mass fraction of PE-UHMW is 8 phr and α-ZrP is 2 phr, the impact strength and flexural modulus of PC/PE-UHMW/α-ZrP composite reaches the maximum value. Furthermore, the incorporation of α -ZrP is effective to improve the other mechanical properties of composite to a certain extent. The SEM analysis shows that α -ZrP plays a dispersion effect to promote PE-UHMW uniformly disperse in the matrix resin, so the impact performance can be further improved.

关 键 词：聚碳酸酯 超高分子量聚乙烯 Α-磷酸锆 复合材料 冲击强度 

分 类 号：TQ322.3[化学工程—合成树脂塑料工业]