摘要
为解决传统丙烯酸树脂(PAA树脂)性能不足、反复利用率差的问题,以腐植酸为原料,采用溶液聚合法制备腐植酸-丙烯酸吸水树脂(HA-PAA树脂),测试树脂粒径大小、溶液含盐量、环境温度、pH值对其吸水倍率的影响和HA-PAA树脂的保水能力及重复使用性.结果表明,粒径为10~20目时HA-PAA树脂的吸水倍率最大,达到1 403g/g;360min左右基本达到饱和;HA-PAA树脂的耐盐性、耐温性、耐酸碱性能较好;经过5次吸水后,HA-PAA树脂吸水倍率达457.5g/g,大于PAA树脂,重复吸水性能和反复利用率较好.
In order to solve the problem of the poor performance and reuse rate of the traditional acrylic resin,humic acid is introduced as raw material.The humic acid-poly acrylic acid superabsorbent resin(HA-PAA superabsorbent resin)is synthesized through aqueous solution polymerization method.The effect of humic acid superabsorbent resin particle size,salinity,ambient temperature and pH value on the water uptake rate is analyzed.The water retention capacity and water retention capacity of humic acid super absorbent resin are tested.The result shows that when the particle size is 10~20,the water absorption of the HA-PAA superabsorbent resin is the largest,and the maximum value is 1 403 g/g.Its water absorption can basically reach saturation after about 360 min.and the salt resistance,temperature resistance,acid and alkali resistance of the HA-PAA superabsorbent resin are better.After 5 times water absorption,the water absorption rate still reaches 457.5 g/g.The value is much larger than that of acrylic resin,and the repeated water absorption and repeated utilization rate are better.
作者
刘梦雅
郭雅妮
穆林聪
马畅柠
徐斗均
LIU Mengya;GUO Yani;MU Lincong;MA Changning;XU Doujun(School of Enviornmental and Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China)
出处
《西安工程大学学报》
CAS
2018年第2期168-174,共7页
Journal of Xi’an Polytechnic University
基金
国家自然科学基金(21573171)
陕西省科技厅工业科技攻关基金(2015GY168)
关键词
腐植酸
丙烯酸
溶液聚合法
吸水性树脂
吸水倍率
重复吸水率
humic acid
poly acrylic acid
aqueous solution polymerization method
superabsorbent resin
water absorption rate
repeated water absorption
作者简介
通信作者:郭雅妮(1972—),女,西安工程大学教授,研究方向为新型环保材料.E-mail:guoyani2002@163.com
