The polypropylene used for making cigarette filters was prepared with the process of free radical graft copolymerization in order to raise the selfadhesive power and surface energy of the PP.
用自由基化学接枝共聚的方法制作聚丙烯香烟滤材,以提高其表面能,增加自粘性。
3
Objective In order to find out a normalization of cardial carcinoma radical surgery and a rational measures to improve the treating effect.