作　　者： ; ; ; ;

机构地区： 山东理工大学材料科学与工程学院

出　　处： 《工程塑料应用》 2011年第12期68-71,共4页

摘　　要： 以马来酸酐接枝聚乙烯(PE-g-MAH)作为界面增容剂,将聚苯硫醚(PPS)、高密度聚乙烯(PE-HD)和玻璃纤维(GF)在转矩流变仪中混炼制得复合材料,并对其冲击性能、断面形貌及增韧机理进行了分析。结果表明,PPS基体中添加PE-HD与GF可有效提高复合材料的缺口冲击强度,且随PE-HD含量的增加显著提高。随着PE-g-MAH含量的增加,复合材料的缺口冲击强度显著提高。但当PE-g-MAH质量分数达到8%时,缺口冲击强度反而下降。扫描电子显微镜(SEM)分析表明,PE-g-MAH明显地改善了复合材料界面粘结性。PPS/PE-HD/GF复合材料中,韧性良好的PE-HD贯穿于复合材料,PE-g-MAH作为增容剂对界面的改进起到了明显的增韧效果。 The maleic anhydride grafted polyethylene（PE-g-MAH） was used as the interfacial compatibilizer,poly（phenylene sulfide）（PPS）,high density polyethylene（PE-HD） and glass fiber（GF） were blended by a mixer,and the composites were gained.The impact toughness,morphology of impact fracture surfaces of the specimens were investigated,and toughening mechanism was discussed.The results showed that the notch impact strength of the composite was improved efficiently by the blending of PE-HD and GF,and increased obviously with increase of PE-HD content.The impact toughness increased with increase of PE-g-MAH content at first,but it decreased slowly when the mass fraction of PE-g-MAH exceeded 8%.The analysis of SEM showed that the interfacial bond of the composite was improved obviously by PE-g-MAH.In the composite of PPS/PE-HD/GF,flexile PE-HD could run through the composite system and PE-g-MAH could enhance the interfacial bond,which increased the toughness of the composites obviously.

关 键 词： 聚苯硫醚 高密度聚乙烯 玻璃纤维 增韧

领　　域： [化学工程]