期刊论文

Zhou, J.

中文

精细石油化工

1003-9384

2011

28

4

67-71

10.3969/j.issn.1003-9384.2011.04.019

湖南省科技计划项目（2009FJ3100）； 中南林业科技大学引进***人才科研启动基金（104-0178）；

本校为第一且通讯机构

通过木质素磺酸盐与丙烯酰胺及部分中和的丙烯酸接枝共聚，将木质素磺酸盐引入至高吸水性树脂中，制备了木质素基高吸水性树脂LS-g—P(AA-co-AM)，研究了其吸水保水性能。结果表明：被吸收液pH值对 LS-g—P(AA-co-AM)树脂吸水性能有很大影响，当被吸收液的pH值在6～7时，树脂的吸水能力最强。树脂具有较好的重复使用性能和自然条件下的保水性能。由于LS-g—P(AA-co-AM)树脂中有较多的离子性基团，因而吸液速率较慢。二级方程dQ／dt—k(Q—Q)~2可以较好地拟合LS-g—P(AA—co—AM)树脂吸蒸馏水的动力学行为，经拟合计算得树脂的初始溶胀速率r_0为14．374 g／(g·min)，理论平衡吸液倍率Q_t为1 197...

Lignin-based superabsorbent resin LS-g-P（AA-co-AM） was prepared through graft copolymerization of lignosulfonate with acrylamide and partially-neutralized acrylic acid. Water absorbency and water retention of LS-g-P（AA-co-AM） resin were investigated. Experimental results showed thatthe pH of the absorbed solution has significant influence on the resiffs water absorption capacity. The highest water absorption capacity was achieved when the pH was 6 -7. LS-g-P（AA-co-AM） resin featured good repeated water absorption and water retention under...