摘要
将牛皮纸进行碱处理,制成微晶纤维素,与淀粉、丙烯酸钠通过反相悬浮聚合法接枝成高吸水树脂。正交实验表明,最佳工艺条件为:反应温度55℃,反应时间3h,丙烯酸中和度75%,交联剂、引发剂、淀粉及纤维素用量分别为单体质量的0.6%,0.5%,10%,10%,对最佳条件下制备的树脂进行吸水倍率测试,并用透反显微镜清晰观察到树脂吸水后的网络结构。结果表明,该吸水树脂具有良好的吸水性能,吸蒸馏率达727.8g/g,吸盐水率达70.8g/g。
Superabsorbents based on starch, microlite cellulose and sodium acrylate were synthesized by inverse suspension polymerization after pretreatment of kraft paper. The optimized reaction conditions were：reaction temperature 55 ℃, reaction time 3 h, neutralization degree of AA 75%, dosages of crosslinking agent,initiator, starch and cellulose 0.6% ,0.5%, 10% and 10% （based on the mass of monomer） ,respectively. The fabric of gel was observed by microscope. The results showed the absorbencys of the resin were 727.8 g/g and 70.8 g/g in case of distilled water and 0.9% NaCl water solution, respectively.
出处
《应用化工》
CAS
CSCD
2007年第2期153-157,共5页
Applied Chemical Industry
关键词
牛皮纸
正交实验
高吸水树脂
接枝共聚
kraft paper
orthogonal design
superabsorbents
graft copolymerization
