3种丙烯酸系列高吸水树脂的吸水性能

doi:10.3724/SP.J.1095.2013.20581

摘要/Abstract

摘要： 采用反相悬浮聚合法合成了3种聚丙烯酸系列吸水树脂：聚丙烯酸钠(PAA)、丙烯酸-丙烯酰胺共聚物(P(AA/AM))和丙烯酸-马来酸酐共聚物(P(AA/MA))。对3种树脂的吸水性、保水性、耐候性和耐电解质等性能进行测试比较。结果表明，P(AA/MA)的吸水性能最优异，10 min内吸蒸馏水量可达3578.4 g/g；在一定的温度或压力范围内，3种树脂均有良好的保水性能，在不同温度下储存均能保持各自的吸水性；P(AA/MA)的耐电解质性能较为突出，吸生理盐水量可达107.2 g/g，其综合性能最好。

关键词: 高吸水树脂, 聚丙烯酸, 反相悬浮, 保水性能, 吸水倍率

Abstract: Three polyacrylate superabsorbent polymers: sodium-polyacrylate(PAA), poly(acrylic acid-co-acrylamide)(P(AA/AM)) and poly(acrylate acid-co-maleic acid)(P(AA/MA)) were synthesized by inverse suspension polymerization(ISP). Systematic tests and comparison were taken at water absorption, water retention, weather resistance and electrolyte resistance of the product. The results show that P(AA/MA) possesses the best water absorption performance with an absorbency for distilled water of 3578.4 g/g in 10 min. The three polymers all have good quality of water retention within a range of temperature and pressure, with P(AA/MA) showing the best in this performance. The three polymers all can keep their water absorption in different temperature storage, and P(AA/MA) has excellent quality toward electrolyte resistance, with an absorbency for normal saline of 107.2 g/g. Overall, the comparisons show that the comprehensive performance of P(AA/MA) is the best.

Key words: superabsorbent polymer, polyacrylic acid, inverse suspension polymerization, water retention, water absorbency

中图分类号:

O632.5

朱正, 赵宇, 张东真, 汪阳, 毕彩丰. 3种丙烯酸系列高吸水树脂的吸水性能[J]. 应用化学, DOI: 10.3724/SP.J.1095.2013.20581.

ZHU Zheng, ZHAO Yu*, ZHANG Dongzhen, WANG Yang, BI Caifeng. Water Absorbency Performance of Three Kinds of Polyacrylate Superabsorbent Polymer[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2013.20581.

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