玻璃微珠改性PA6/PA66合金复合材料的制备与性能  

Preparation and performance of polyamide alloys/glass bead composites

作　　者：黄丽[1] 魏星[1] 马赟喆[1] 吕亚非[1] 

机构地区：[1]北京化工大学新型高分子材料的制备与加工北京市重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2010年第5期88-92,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：采用玻璃微珠填充PA6/PA66合金制得复合材料,通过一系列测试方法研究了复合材料的力学性能、耐热性、吸水率及结晶性能的变化。结果表明,随着玻璃微珠含量的增加,复合材料的拉伸强度有所提高,但当其质量分数超过15%时,拉伸强度开始降低;冲击强度的变化与拉伸强度的变化类似;复合材料的耐热性能则随玻璃微珠的增加而不断增加;玻璃微珠在材料的结晶过程中起到异相成核的作用,导致材料在相对较高的温度下便能形成稳定的晶核,使晶体更稳定地生长,但复合材料的结晶度有所下降。The mechanical,thermal,and water absorption properties,as well as the non-isothermal crystallization behavior of composites of polyamide 66 and polyamide 6 alloys filled with hollow glass beads have been studied.Both the tensile strength and impact strength of the polyamide alloy were improved by addition of glass beads up to a content of about 15%.The heat resistance of the composites showed a continuous increase with increasing content of the hollow glass beads.Heterogeneous nucleation of the glass beads in the composites results in stable crystal nuclei at relatively high temperatures and steady growth,but the crystallinity of the polyamide alloy decreases as result.

关 键 词：聚酰胺合金 空心玻璃微珠 结晶 复合材料 

分 类 号：TQ316.6[化学工程—高聚物工业]