用注塑成型方法制备了PP/PMMA接枝剑麻纤维(SF)复合材料,研究了它的热性能、晶态结构、微观结构和力学性能.结果表明PMMA表面接枝的SF增强了PP与SF之间的作用力,改善了PP/SF的热稳定性,降低了PP相的熔点.同时SF的加入诱导了β-晶型PP的生成,提高了PP相的结晶度,降低了无定型PP的玻璃化转变温度.PMMA接枝的SF提高了PP的模量,对PP有明显的增韧效果.
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