As the fiber - reinforced composite must has good ductility , first of all the mixing reinforcement of waste pe and pp were studied . the optimum mixture ratio was acquired with a little decrease of strength 鉴于纤维增强复合材料要求基体要有一定的韧性,首先研究了废旧pe和pp基体的共混增韧,获得在强度降低不大的情况下,增韧效果最好的共混组分的最佳共混比。