高吸水树脂因其优良的吸水性和保水性，近年来受到广泛关注与研究。为实现柚子皮的废物利用，优化高吸水树脂的生产工艺，研究以天然无毒的柚子皮粉为接枝骨架，丙烯酸为接枝单体，司班-80为分散剂，环己烷为油相，过硫酸钾为引发剂，N,N’-亚甲基双丙烯酰胺为交联剂，采用反相悬浮聚合法制备了吸水性和吸生理盐水性能良好的纤维素基高吸水树脂。探讨了司班-80用量、引发剂用量、柚皮粉用量、交联剂用量、丙烯酸中和度、反应温度、油水质量比对树脂在蒸馏水和生理盐水中的吸液倍率的影响。结果表明，在司班-80用量为单体的6.7%，引发剂用量为单体的0.5%，柚皮粉:丙烯酸为1:5，交联剂为单体的0.67%，丙烯酸中和度40%，油水比2:1，反应温度80 ℃条件下，树脂对蒸馏水和生理盐水最大吸液倍率可达362.29 g/g和42.49 g/g。

Superabsorbent resins have attracted high attention and research interest, because of their distinct water-absorbing and water-holding properties. In order to utilize pomelo peel and optimize the production process of super absorbent resins, cellulose-based superabsorbent resins with good water and physiological saline absorption properties were prepared via reversed-phase suspension polymerization using natural and non-toxic pomelo peel powder as the graft skeleton, acrylic acid as the grafting monomer, span 80 as the dispersing agent, cyclohexane as the oil phase, potassium persulfate as initiator, and N, N’-methylenebisacrylamide as the crosslinking agent. The effects of influencing factors, such as the amount of span 80, initiator, pomelo peel powder and crosslinking agent, and the neutralization degree of acrylic acid, reaction temperature and ratio of oil to water, on the water or physiological saline absorption rate of the resin were examined. The results showed that the maximum resin absorption rates in distilled water and physiological saline were 362.29 g/g and 42.49 g/g. respectively, when the following conditions were used: amount of span-80, 6.7%; amount of initiator, 0.5%; ration of pomelo peel power: AA, 1:5; amount of crosslinking agent, 0.67%; neutralization degree of acrylic acid, 40%; ratio of oil to water, 2:1; reaction temperature, 80 ℃.

广东省自然科学基金研究团队项目（2015A030312001）；广东省省级现代农业科技创新联盟建设项目（2016LM2151）