芳纶短纤维增强天然橡胶耐磨材料的研究

利用芳纶短纤维增强天然橡胶耐磨材料,研究了纤维含量、长度和纤维粘合处理、混炼工艺等因素对短纤维复合材料性能的影响及芳纶浆粕和短纤维增强复合材料的热老化性能。实验发现,在开炼机上将芳纶短纤维直接加入母校炼校的混炼工艺和芳纶长复丝活化、浸ＲＦＬ后再短切的纤维处理方法可以实现纤维的较好分散和粘合。性能测试结果表明,芳纶短纤维使复合材料具有性能各向异性和更大的拉伸模量、硬度,更好的热老化性、耐溶剂性和纤维

RUBBER WEAR-RESISTANT MATERIALS REINFORCED WITH ARAMID SHORT FIBER

Natural rubber wear resistant material was reinforced with aramid short fiber. The effects of fiber loading, length and adhesion treatment, milling process on the properties of the materials and the thermal aging property of aramid pulp and short fiber composites were investigated. It was found that short fiber may disperse well in rubber by directly adding short fiber to masterbatch and treating aramid fiber with activating, dipping adhesive and short cutting. The results show that aramid short fiber makes composite have orthotropic property, higher modulus and hardness, better thermal aging property, swelling resistance and abrasion property of surface normal fiber than the rubber.