聚丙烯纤维与丙烯酸接枝共聚反应的研究

用高锰酸钾 /硫酸作为引发体系 ,聚丙烯纤维与丙烯酸进行接枝共聚反应。研究聚丙烯纤维接枝率与硫酸浓度、丙烯酸浓度、高锰酸钾浓度、高锰酸钾预处理纤维时间、预引发时间、聚合温度和反应时间的关系。结果表明 :硫酸浓度为 0 .2 mol/ L,高锰酸钾浓度为 5× 10 - 3mol/ L,丙烯酸浓度为 0 .8mol/ L,高锰酸钾预处理时间为 30 min,预引发时间为 32 min,反应温度为 80℃ ,反应时间为 3.5h时 ,接枝率较高。

STUDY ON GRAFTING COPOLYMERIZATION OF POLYPROPYLENE FIBER WITH ACRYLIC ACID

The graft copolymerization of acrylic acid onto polypropylene fibre was studied by using KMnO 4/H 2SO 4 as an initiator. The copolymerization reaction is greatly influenced by the concentrations of KMnO 4 and H 2SO 4, pretreatment time, preinitiation time, temperature and time of reaction. The results show that the optimum reaction conditions are as follows: the concentration of H 2SO 4 0 2 mol/L and KMnO 4 5×10 -3 mol/L, acrylic acid 0 8 mol/L, the pretreatment time 30 min, the preinitiation time 32 min, the graft temperature 80℃ and the reaction time 3.5 h.