等离子体处理对高吸水树脂耐盐性能的影响  

Salt-tolerance of Superabsorbent Polymer Modified by Low Temperature Plasma Treatment

作　　者：段雅丽[1] 李秋荣[1] 肖海燕[1] 郑海武[1] 

机构地区：[1]燕山大学环境与化学工程学院,秦皇岛066004

出　　处：《材料导报（纳米与新材料专辑）》2010年第2期473-476,共4页

基　　金：河北省教育厅项目(2009481)

摘　　要：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%。It is studied that the 2-acrylamido-2-methylpropane sulfonie acid/acrylic acid/acrylamide/polyvinyl alcohol（AMPS/AA/AM/PVA） superabsorbent resin is modified by plasma treatment under ambient temperature and pressure conditions. The effects of discharge power, duration of discharge and the mesh number of resin on the salt tolerance of treated water-absorbent resin are investigated. The co-polymers are characterized by Fourier transform infrared spectroscopy（FT-fR）, thermal analysis（TG/DTA） and other methods. The results show that the plasma treatment can significantly improve the salt-tolerance property of water-absorbent resin obviously, as well as the optimal modified conditions are that discharge power is 60W; duration of discharge is 2min; the water-absorbent resin mesh is 80. The 0. 9 % NaCl solution absorptivity of water-absorbent resin which is modified by plasma treatment raises 13. 33%.

关 键 词：等离子体 聚合物表面改性 高吸水树脂 抗温耐盐性 

分 类 号：TQ324.9[化学工程—合成树脂塑料工业]