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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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kps？can？nahso3接枝稻草丙烯酸吸水材料的合成
DOI: 10.3969/j.issn.1000-2006.2013.05.025, PP. 129-133
Keywords: 复合引发剂,稻草,吸水材料,碱处理,接枝共聚,纤维素,木质素,半纤维素
Abstract:
用过硫酸盐-铈盐-亚硫酸氢钠（kps？can？nahso3）复合引发体系诱发碱处理稻草与丙烯酸接枝共聚，研究了稻草与丙烯酸接枝共聚合成吸水材料的特性，分析了接枝过程的工艺特点。结果表明，碱处理稻草粉可有效降解秸秆中的木质素和半纤维素，提高了纤维素相对含量，改性纤维组织结构，提高接枝反应性能，碱处理后所得的稻草纤维灰分质量分数仅为1.8%；当kps、can、nahso3质量比为15∶3∶5时，该复合引发体系协同性较佳；在m（丙烯酸）∶m（稻草）=8∶1、单体中和度70%、交联剂用量为单体质量的1%、反应温度60℃、反应时间3h条件下，合成吸水材料的接枝率可达493%、吸水倍率达350g/g。
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