对几种中药渣（山芝麻,葫芦茶,三叉苦,广霍香）进行蒸汽爆破处理,以马来酸酐改性无规共聚聚丙烯（MAPP）作为相容剂,与聚丙烯（PP）复合制备复合材料,实现几种中药渣废弃物资源的高值化利用。分析了各药渣的主要成分,用扫描电镜（SEM）观察药渣及复合材料拉伸断面的形貌。结果表明,蒸汽爆破处理药渣可使纤维束解离出纤维细胞作为增强材料;药渣纤维的种类影响复合材料的拉伸和弯曲性能,选用木质化程度高、半纤维素含量低、杂细胞少的药渣有利于制备出综合性能较好的复合材料。
Chinese herbs, helicteres angustifolia （HA）, Tadehagi triquetrum （L.） H. Ohashi （TTO）, Euodia lepta （Spreng.） Merr （ELM）, and Pogostemon cablin （Blanco） Benth （PCB） were pretreated by steam explosion. The composites were prepared by mixing steam exploded residue of Chinese herbs （RCH） fibers with polypropylene （PP） using maleic anhydride grafted polypropylene （MAPP） as compatilizer so as to realize the high-value use of RCHs. The main components of RCHs were analyzed, and the morphology of steam exploded RCH fibers and tensile- fractured composite surfaces were observed by scanning electron microcopy （SEM）. The results show that the fiber bundles of RCHs can be separated into fiber cells by steam-explosion, which can be used as reinforcement materials. RCH fiber species has a great influence on the tensile and flexural properties of composites. Choosing RCHs with high lignified, the low content of hemicellulose and hetero cells is helpful for preparing composites with a good comprehensive performance.
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