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表面交联对高吸水性树脂吸水性能的影响
引用本文:张良培,张卫英,李晓,英晓光.表面交联对高吸水性树脂吸水性能的影响[J].功能材料,2012,43(5):653-656.
作者姓名:张良培  张卫英  李晓  英晓光
作者单位:福州大学化学化工学院,福建福州,350108
基金项目:福建省高等学校新世纪优秀人才支持计划资助项目
摘    要:采用异氰酸酯、醛及金属盐等对溶液聚合法制备的丙烯酸型吸水性树脂进行表面交联处理,结果表明以甲醛为表面交联剂处理后的树脂吸水速度快,入水后即分散、不结团,吸水凝胶表面干爽,加压下吸水性能好,且处理工艺简单,5g吸水树脂用0.1g左右的甲醛在室温下共置12h后即可得到综合性能优良的吸水树脂。

关 键 词:高吸水性树脂  丙烯酸  表面交联  甲醛

Effect of surface crosslinking on absorption properties of superabsorbent polymers
ZHANG Liang-pei,ZHANG Wei-ying,LI Xiao,YING Xiao-guang.Effect of surface crosslinking on absorption properties of superabsorbent polymers[J].Journal of Functional Materials,2012,43(5):653-656.
Authors:ZHANG Liang-pei  ZHANG Wei-ying  LI Xiao  YING Xiao-guang
Affiliation:(School of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou 350108,China)
Abstract:Isocyanates,aldehydes and metal salts were applied as surface crosslinking agent for superabsorbent polymers prepared by solution polymerization of acrylic acid.The results showed that the superabsorbent polymers treated by formaldehyde possessed good properties,including high absorption speed,easy dispersion in aqueous solution,dry surface of the gel after absorption,pretty absorbency under pressure,and simple surface treating process.When 5g superabsorbent polymer was treated with 0.1g formaldehyde for 12h at room temperature,the superabsorbent polymer got the optimum performance.
Keywords:superabsorbent polymer  acrylic acid  surface cross-linking  formaldehyde
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