木粉接枝改性制备高吸水材料的研究

Preparation of Superabsorbent Resin from Wood Flour by Grafting-copolymerization

以木粉为原料,通过接枝丙烯酸制备高吸水材料。对单体用量、引发剂用量、中和度、反应温度等工艺条件进行了优化研究,确定了最佳合成条件,并用红外图谱对产物的结构进行了表征。结果表明,制备的高吸水材料吸水率达1560g/g,对质量分数为0.9%的NaCl溶液吸水率为115g/g,且保水性能较好。

Wood flour was used as a raw material on which acrylic acid was grafted to prepared superabsorbent resin. Some process conditions such as consumption of monomer,initiator,neutraliztion degree and polymerizing temperature were investigated. The optimal reaction conditions were obtained and the structure of the product was characterized by FT-IR. The resin could absorb water and salt so lution as much as 1560 times and 115 times of its own mass respectively,and its water retention capacity was well.