聚吡咯/环氧树脂复合材料的制备及其性能研究  

Study on Preparation and performance of polypyrrole/epoxyresin composites

作　　者：郭江 习绍华 Abdul Wariz 李帅 陈卓然 李旭 王芬[1] 朱建锋[1] GUO Jiang;XI Shao-hua;Abdul Wariz;LI Shuai;CHEN Zhuo-ran;LI Xu;WANG Fen;ZHU Jian-feng(School of Material Science and Engineering,Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials,Shaanxi University of Science&Technology,Xi′an 710021,China)

机构地区：[1]陕西科技大学材料科学与工程学院陕西省无机材料绿色制备与功能化重点实验室,陕西西安710021

出　　处：《陕西科技大学学报》2022年第6期86-92,共7页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(51972200);陕西省科技厅自然科学基础研究计划项目(2022JQ-441)。

摘　　要：以环氧树脂为基体,以氧化模板法制备的纤维聚吡咯为掺杂材料,成功制备了纤维聚吡咯/环氧树脂复合材料.利用X射线衍射仪、扫描电子显微镜、傅里叶红外光谱仪等表征手段对聚吡咯填料的晶体结构、形貌进行了分析.研究了不同含量的纤维聚吡咯对复合材料力学性能及吸波性能的影响.结果表明:少量的纤维PPy能够提高复合材料的拉伸强度,3 wt%PPy/环氧树脂复合材料的拉伸强度达到80.1 MPa;随着PPy填料含量的增加,PPy/复合材料的电阻率显著降低;3 wt%PPy/环氧树脂复合材料展示了优异的吸波性能,在16.1 GHz下的最小反射损耗RL达到-33.50 dB.为处理电磁波污染的环氧树脂基纳米复合材料的制备提供了指导.In this work,fibrous polypyrrole/epoxy composites are successfully prepared using epoxy resin as the matrix and fibrous polypyrrole prepared by oxidation template method as the doping material.The crystal structure and morphology of the polypyrrole filler are analyzed by means of X-ray diffractometer,scanning electron microscope and Fourier infrared spectrometer.The effects of different contents of fibrous polypyrrole on the mechanical properties and wave absorption properties of the composites are investigated.The results show that a small amount of fibrous PPy can improve the tensile strength of the composites,and the tensile strength of 3 wt%PPy/epoxy resin composites reaches 80.1 MPa.The resistivity of PPy/composites decreases significantly with the increase of PPy filler content.The 3 wt%PPy/epoxy composite exhibits excellent wave absorption performance with a minimum reflection loss RL of-33.50 dB at 16.1 GHz.This work provides guidance for the preparation of epoxy resin-based nanocomposites to deal with electromagnetic wave pollution.

关 键 词：导电高分子复合材料 聚吡咯 环氧树脂 力学性能 吸波性能 

分 类 号：TJ04[兵器科学与技术—兵器发射理论与技术] TQ11[化学工程—无机化工]