聚丙烯离子交换纤维研究  

Study of Polypropyplene Ion-exchange Fiber

作　　者：杜慷慨[1] 庄建平[1] 郑文奇[1] 

机构地区：[1]华侨大学材料学院,福建泉州362011

出　　处：《塑料工业》2003年第4期35-37,40,共4页China Plastics Industry

基　　金：华桥大学科研基金资助

摘　　要：利用超声波分散原理将苯乙烯 (St)分散到聚丙烯纤维 (PP)中 ,以过氧化苯甲酰 (BPO)作为引发剂 ,使苯乙烯接枝到PP纤维表面 ,得到PP -g -St纤维 ;然后用浓硫酸将PP -g -St纤维磺化 ,制成强酸型离子交换纤维。研究了反应时间、反应温度等对离子交换纤维的质量摩尔浓度的影响 ,并用红外光谱加以表征。结果表明 :温度90℃下磺化反应 2h ,可得到离子交换质量摩尔浓度为 0 95mmol/g的强酸型离子交换纤维。Based on the diffusion principle of ultrasonic wave, styrene (St) was dispersed into polypropylene (PP) fiber, and then benzoyl peroxide (BPO) was used as initiator to make styrene solid phase to graft onto the surface of polypropylene fiber, resulted in PP-g-St fiber. The PP-g-St fiber was sulfonated by concentrated sulfuric acid to prepare a strong acidic ion-exchange fiber. The influence of reaction time and temperature on the exchange equivalent of the ion-exchange fiber was studied, and the ion-exchange fiber was characterized by means of infra-red spectrum. The results indicated that the most suitable condition of the sulfonate reaction was: temperature 90℃, time duration 2 hours, resulting in a strong acidic ion-exchange fiber with an exchange equivalent of 0.95 mmol/g.

关 键 词：聚丙烯 苯乙烯 固相接枝 磺化 离子交换纤维 吸附材料 

分 类 号：TQ342.62[化学工程—化纤工业] TQ425.28