废旧聚合物是数量巨大,但利用很少的聚合物原材料资源。目前,人们开始越来越重视对废旧聚合物的循环再利用,并已研发出了多种聚合物回收方法,其中最先进的方法已经运用到化学和物理加工生产中。化学方法回收聚合物时,其终端产物是单体,可继续加工成新的聚合物原料。而物理加工方法(粉碎)能够保持聚合物的本来 Waste polymers are large in quantity, but utilize little polymer source material. At present, people are beginning to pay more and more attention to the recycling of waste polymers. Various polymer recovery methods have been developed. The most advanced methods have been applied to chemical and physical processing. When the polymer is recycled by chemical means, the end product is a monomer that can be further processed into a new polymer material. The physical processing method (grinding) to maintain the original polymer