SYNTHESIS AND CHARACTERIZATION OF SUPER WATER-ABSORBENT RESIN OF BINARY COPOLYMER

CUI Yingde; GUO Jianwei; LIAO Liewen; KANG Zheng

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SYNTHESIS AND CHARACTERIZATION OF SUPER WATER-ABSORBENT RESIN OF BINARY COPOLYMER

更新时间：2025-12-10

- SYNTHESIS AND CHARACTERIZATION OF SUPER WATER-ABSORBENT RESIN OF BINARY COPOLYMER
- CIESC Journal Issue 7, (2001)
- 作者机构：
  
  广东工业大学轻工化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 July 2001，
  
  Published：25 July 2001
- 稿件说明：
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CUI Yingde, GUO Jianwei, LIAO Liewen, et al. SYNTHESIS AND CHARACTERIZATION OF SUPER WATER-ABSORBENT RESIN OF BINARY COPOLYMER[J]. CIESC Journal, 2001, (7).
DOI：

CUI Yingde, GUO Jianwei, LIAO Liewen, et al. SYNTHESIS AND CHARACTERIZATION OF SUPER WATER-ABSORBENT RESIN OF BINARY COPOLYMER[J]. CIESC Journal, 2001, (7). DOI：

摘要

以N

N′-亚甲基双丙烯酰胺为交联剂

过硫酸钾为引发剂

采用溶液聚合法合成了丙烯酸 -丙烯酰胺二元共聚高吸水性树脂 .研究了单体组成、单体浓度、引发剂用量、交联剂用量、反应温度等因素对产物性能的影响 .并对反应动力学和共聚物的溶涨动力学进行了探讨

Abstract

A super water-absorbent resin was synthesized from the sodium salt of acrylic acid with acrylamide as comonomer

N ′-methylenebisacrylamide as crosslinking agent

K2S2O8 as initator

by means of aqueous solution polymerization.The effects of AM content

total monomer concentration

initiator concentration

crosslinker content

bath temperature on the characteristics of products as well as the reaction kinetics and the swelling kinetics of products were investigated.Under the following polymerization conditions: monomer concentration 40%

AM∶(AM+AA)=0.3-0.4

initiator concentration 0.3%-0.4%

bath temperature 110-130 ℃

crosslinker content 0.02%

the super water-absorbent resin of binary copolymer thus obtained had a higher water-absorbency (500-600) and salt solution(0.9% NaCl) absorbency (100-120).In addition

the water absorbent rate of this super water-absorbent resin of binary copolymer was higher than that of the reported superabsorbents.

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