Reclaimation and Reuse of Ground Rubber Powder

废旧橡胶主要来源于废轮胎，废胶鞋等橡胶制品，是热固性高分子材料。废橡胶从再生资源及循环经济的角度考虑，生产再生胶最为合理，几乎100％可以利用。废轮胎胶粉（以下称黑胶粉）和废旅游鞋鞋底胶粉（以下称黄胶粉）是目前福建省生产量最大的废胶粉。使用传统的再生方法能耗大，污染严重，且成本过高。本文采用低温化学法和微波脱硫法研究了两种胶粉的回收利用。 低温化学法主要是利用促进剂混合物作为脱硫改性剂，配以氧化锌和硬脂酸等常规助剂来实现胶粉脱硫改性。对黑胶粉的改性体系脱硫时间较短，得到的硫化胶拉伸强度≥8.5MPa，断裂伸长率≥280%，拉伸强度比市售脱硫再生胶的（按国标GB/T-13460规定为5MPa）...Large amounts of rubbers are used as tires for aeroplanes, trucks, cars, and shoes etc. But after a long run when these tires are not serviceable and discarded, only a few grams or kilograms of rubber (<1%) are abraded out. This poses two major problems: the wastage of valuable rubber and the disposal of waste tires leading to environmental pollution. In this paper two kinds of ground rubber ...学位：理学硕士院系专业：化学化工学院材料科学与工程系_高分子化学与物理学号：20043603

Preparation of Elastomers from Whole Ground Tire Rubber

［中文文摘］用硫化改性剂和废轮胎胶粉制备了全胶粉弹性体.讨论了改性剂用量、炭黑用量、加工工艺及加工助剂对全胶粉弹性体物理机械性能的影响.实验发现硫化改性剂用量为2份;炭黑用量15份;加工油用量小于2份,可以得到较好性能的全胶粉弹性体,拉伸强度达7.9 MPa,断裂伸长率为315%,超过了再生胶的国标(拉伸强度6 MPa).同时对全胶粉弹性体的微观形貌及断裂行为也进行了讨论.［英文文摘］Ground Tire Rubber(GTR) was reclaimed by using the strong shearing force and the reclaiming agent in less than ten minute.It was found that adding 2 phr reclaiming agent,15 phr carbon black,2 phr naphthenic oil,the obtained elastomer had the best mechanical properties.The tensile strength was 7.9 MPa,elongation at break was 315%,the tear strength was 28 N/m.The microstruture of elastomers were also been detected by SEM