常温常压下使用等离子体技术对2-丙烯酰胺基2-甲基丙磺酸/丙烯酸/丙烯酰胺/聚乙烯醇(AMPS/AA/AM/PVA)高吸水树脂进行改性处理.系统地研究了等离子体放电功率、放电时间以及树脂目数对处理后吸水树脂耐盐性的影响.通过傅立叶变换红外光谱(FT-IR)、差热热重分析(TG/DTA)等测试手段研究了改性前后树脂的结构与性能.结果表明,等离子体改性处理可明显改善吸水树脂的耐盐性,并确定了使用等离子体改性的最佳条件:放电时间为2min;放电功率为60W;树脂目数为80目.经过等离子体处理表面改性的树脂对0.9%NaCl溶液吸液率较未处理前提高了13.33%.
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