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化工进展  2015 

玉米秸秆接枝丙烯酸-丙烯酰胺树脂的制备与吸水性能

DOI: 10.16085/j.issn.1000-6613.2015.01.035, PP. 198-202

Keywords: 高吸水性树脂,玉米秸秆,丙烯酸,丙烯酰胺,吸水率

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Abstract:

以醚化预处理玉米秸秆(PTCS)为基体,丙烯酸(AA)和丙烯酰胺(AM)为单体,过硫酸钾为引发剂,N,N'-亚甲基双丙烯酰胺(MBA)为交联剂,采用水溶液聚合法制备PTCS接枝AA、AM共聚物[PTCS-g-P(AA-co-AM)]。研究了合成条件对树脂吸水率的影响,考察了树脂重复吸水和保水性能,并用红外光谱(FTIR)、电子扫描电镜(SEM)表征了产物的结构和形貌。结果表明,在m(PTCS)m(AA)m(AM)=152,丙烯酸中和度为70%,K2S2O8为0.6%,MBA为0.2%,60℃反应3h条件下,制备高吸水性树脂的吸水率最大,对蒸馏水和0.9%NaCl水溶液的吸水率分别为144.04g/g、30.60g/g,且重复吸水和保水性能良好。

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