摘要
本文选用电导率、导热系数高的无机材料膨胀石墨对聚酰胺6进行原位复合改性,采用十二烷基苯磺酸钠对膨胀石墨进行表面改性,提高石墨与聚合物基体的界面相互作用,改善石墨在基体中的分散状况,制备出导电性能、力学性能等综合指标优良的PA6/膨胀石墨纳米复合材料。通过对材料力学性能、电学性能及微观形态的测试与表征,研究了尼龙/膨胀石墨纳米复合材料的纳米结构以及导电、增强机理,并且对原位插层复合反应的原理在反应中的应用进行了初步的探讨。实验结果表明:添加石墨对材料的力学性能、电学性能有所提高,石墨的微孔结构有助于原位插层复合反应的进行。
Sodium doodecyl benzene sutfonate(NaDDBS)as coupling agent was used in the surface treatment of ex- panded graphite to improve the interfacial interaction between graphite and polymer matrix,and dispersion of graphite with electrical conductivity,in matrix polyamide 6 was performed by in-situ polymerization of casting method,PA6/EP nanocomposite which has good comprehensive performance,such as mechanic property,electrical conductivity,was prepared in this paper. The mechanic property,electrical conductivity,nanostrueture,electrical conductivity mechanism,intensification mecha- nism were studied by testing properties,XRD and OM.The results show mechanic properly and electrical conductivity are improved by filling graphite,graphite is beneficial to the layer to put the proceeding to reunite the reaction.
关键词
膨胀石墨
纳米复合材料
尼龙
界面相互作用
聚酰胺6
插层复合
聚合物基体
反应
原位
PA
expaned graphite
polyamide 6
electrical conductivity
mechanic property
nylon
microporous construction
in-situ intercalated polymerization
