A heat-shrinkable tube is described. The tube is characterized by a resin composition which contains from 5 to 80 % by weight of a graft copolymer, and chlorinated polyethylene having a crystal proportion of from 1 to 25%. The graft copolymer is prepared by graft-copolymerizing polyvinyl chloride to an ethylene-vinyl acetate copolymer having a vinyl acetate content of at least 50 % by weight.
描述了一种热缩管。这种管子的特点是其
树脂组合物含有 5%至 80%(按重量计)的接枝共聚物和晶体比例为 1%至 25%的
氯化聚乙烯。接枝共聚物的制备方法是将聚
氯乙烯与
乙烯-
醋酸乙烯共聚物进行接枝共聚,
乙烯-
醋酸乙烯共聚物的
醋酸乙烯含量至少为 50%(重量百分比)。