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Citation: 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, ;2013, 30(11): 1265-1269. doi: 10.3724/SP.J.1095.2013.20581 shu

Water Absorbency Performance of Three Kinds of Polyacrylate Superabsorbent Polymer

Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemical Engineering, Ocean University of China, Qingdao 266100, China

Received Date: 12 December 2012
Revised Date: 22 March 2013

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.
- superabsorbent polymer,
- polyacrylic acid,
- inverse suspension polymerization,
- water retention,
- water absorbency
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