应用化学2017，Vol.34Issue(3)：282-290,9.DOI:10.11944/j.issn.1000-0518.2017.03.160237
碳纳米管复合聚丙烯酸钠的制备及吸水性能
Preparation and Swelling Properties of Carbon Nanotubes Composited Sodium Polyacrylate
摘要
Abstract
Carbon nanotubes(CNTs) composited sodium polyacrylate (PAA-Na) superabsorbent polymer was prepared by solution polymerization of acrylic acid (AA),where ammonium persulfate (APS) was used as an initiator,N,N'-methylene-bisacrylamide(MBA) as a crosslinker in the presence of carbon nanotubes.Effects of the amount of CNTs,initiator,crosslinker and the reaction temperature on water absorbency were studied.The results show that the synthetic resins have the best water absorbency when the mass ratio of the crosslinker to AA is 0.04％,the initiator to AA is 0.3％,the CNTs to AA is 0.3％ and the reaction temperature at 75 ℃.After the addition of carbon nanotubes,the CNTs/PAA-Na shows rough surface and porous structure,which may lead to changes in water absorbency.The water absorbence and the swelling rate by the CNTs/PAA-Na are significantly improved than those by PAA-Na.The highest water absorbence of CNTs/PAA-Na reaches 1423 g/g and 104 g/g in distilled water and in saline water,respectively.The CNTs/PAA-Na composite maintains 76.0％ of its water absorbency after repeated five times,and the water absorbent capacity is 1081.5 g/g.关键词
水溶液聚合/碳纳米管/聚丙烯酸钠/吸水倍率Key words
solution polymerization/carbon nanotubes/sodium polyacrylate/swelling ratio分类
化学化工引用本文复制引用
庄知博,南照东..碳纳米管复合聚丙烯酸钠的制备及吸水性能[J].应用化学,2017,34(3):282-290,9.基金项目
国家自然科学基金资助项目(212731796,21673204)Supported by the National Natural Science Foundation of China(No.212731796,No.21673204) （212731796,21673204）
