制备胺基离子交换纤维的反应条件优化研究

功能材料, 2012, 43(6): 779-782.

制备胺基离子交换纤维的反应条件优化研究

李明愉 ^1, , 刘雄 ^2, , 吕军军 ^3, , 曾庆轩 ^4, , 冯长根 ^5,

1.北京理工大学机电学院,北京100081

2.北京理工大学机电学院,北京100081

3.北京理工大学机电学院,北京100081

4.北京理工大学机电学院,北京100081

5.北京理工大学机电学院,北京100081

基金项目: 国家高技术研究发展计划(863计划)资助项目(2002AA245091)

关键词：聚丙烯接枝苯乙烯纤维 , 乙酰化 , 胺基化 , 胺基离子交换纤维 , 制备

Study on the optimize conditions of preparation reaction of amino ion exchange fiber

Keywords： polypropylene grafted styrene fiber , acetylation , amination , amino ion exchange fiber , synthesis

以聚丙烯接枝苯乙烯纤维为原料，采用乙酰化及胺基化两步法反应，制备多胺基离子交换纤维。研究了反应时间和温度、催化剂及乙酰氯用量对乙酰化反应条件的影响。利用正交实验法研究了胺酰摩尔比、胺醛摩尔比、胺酸摩尔比及反应时间对胺化反应影响。所制备的胺基纤维对Cu^2＋吸附容量可达2．00mmol／g。

A kind of novel amino fiber was prepared from styrene grafted polypropylene （PP-g-St） fiber through acetylation and amination reaction. Factors affecting the acetylation process, such as reaction time, temperature, catalyst and the amount of acetyl chloride, were investigated. The effects of mol-ratio of amine vs. acetyl, amine vs. paraformaldehyde and amine vs. hydrochloric plus reaction time were also studied to obtain the opti- mum amination conditions by orthogonal experiment design. The results show that the adsorption capacity of Cu^2＋ could reach 2.00mmol/g by this kind of amino fiber.

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