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化工学报  2014 

废旧聚丙烯/废弃印刷线路板非金属粉复合材料的制备及性能

DOI: 10.3969/j.issn.0438-1157.2014.04.046, PP. 1495-1502

Keywords: 废弃印刷线路板非金属粉,废旧聚丙烯,复合材料,硅烷偶联剂,马来酸酐接枝聚丙烯

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Abstract:

采用挤出注塑法以废旧聚丙烯(WPP)为基体、废弃线路板非金属粉(WPCBN)为填料制备了复合材料。考察了WPCBN对材料阻燃性能及力学性能的影响。通过红外光谱和扫描电子显微镜分析研究了WPCBN改性前后官能团结构及复合材料冲击断面形貌的差异,以探讨硅烷偶联剂(KH550)、马来酸酐接枝聚丙烯(MAPP)对WPP/WPCBN界面相容性改善及复合材料力学性能提高的作用机理。结果表明,WPCBN超过10phr后复合材料具有自熄性;经1.5phrKH550改性后,WPCBN与WPP间的界面黏结力增强,复合材料拉伸、弯曲及冲击强度分别提高6.5%、6.25%和17.9%;m(WPP):m(WPCBN):m(MAPP)为100:30:9时,复合材料的拉伸、弯曲强度增幅最大,分别为37.5%和48.8%;WPP/WPCBN与新聚丙烯(NPP)/WPCBN复合材料相比,拉伸、弯曲强度仅降低16.8%、20.4%。

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