【摘要】 利用超声波的分散原理,以二甲苯作为界面剂,把引发剂过氧化苯甲酰(BPO)分散到聚丙烯(PP)纤维表层里,然后在水溶液中接枝对乙烯基苯磺酸钠(VSB),得到接枝产物PP-g-VSB纤维．研究反应条件对接枝率的影响,以及接枝率对接枝纤维性能的影响,并用热重分析加以表征．结果表明,反应温度为90℃、VSB和 BPO质量分数分别为8％,4％,可得到接枝率34％、离子交换当量1．2 mmol·g-1的强酸型离子交换纤维．更多还原

【Abstract】 Under sonication, dimethylbenzone, which is used as a swelling agent, and benzoyl peroxide, which is used as an initiator, were swelled and permeated onto the surface of polypropylene fiber （PPF）. Then, the vinyl sodium benzos-ulfonate （VSB） was grafted onto polypropylene fiber in water medium, to prepare the grafted fiber （PP-g-VSB） . This paper investigated the effects of the reaction condition on the grafting rate, and effects of grafting rate on the function of grafted fiber. The grafted fiber was also characterized by DSC. The optimum reaction condition were as follows: reaction temperature: 90℃, the charge ratio: PP:VSB :BPO= 1: 0. 08 （in 40 mL aqueous） : 0. 04. It showed that the grafting rate of the obtained grafted fiber was rate of 34%, with a strong acidic ion-exchange equivalent of 1. 2 mmol ?g^-1.更多还原