纳米复合材料
共聚物
丙烯酰胺
淀粉
高吸水性高分子
嫁接
磺酸
伊利石
化学工程
材料科学
高分子化学
单体
傅里叶变换红外光谱
水溶液
核化学
化学
复合材料
有机化学
聚合物
工程类
石英
作者
Ming Zhou,Jiaxi Zou,Xiaolu Guo,Yan Yang
标识
DOI:10.1080/10601325.2019.1582303
摘要
Starch-g-poly (AM-AMPS)/illite superabsorbent nanocomposite was synthesized by grafting copolymerization reaction of starch, acrylamide(AM) and 2-acrylamido-2- methyl propane sulfonic acid (APMS) in the presence of illite micropowder in deionized aqueous solution. The influence factors on water absorbency of the superabsorbent nanocoposite was optimized by single factor experiment. The synthesized superabsorbent nanocomposite exhibited the maximum water absorbency of 1320 g H2O/g in deionized water and 142 g H2O/g in 0.9 wt% sodium chloride (NaCl) solution. FTIR spectra confirmed that the grafting copolymerization between -OH groups on starch and monomers generated during the reaction. XRD analysis confirmed that crystal interlayer of illite was pulled open to 3.61 nm. TEM showed that illite slice layer randomly dispersed in the matrix of superabsorbent nanocomposite. The superabsorbent nanocomposite had a better thermal stability the corresponding superabsorbent material without illite by TGA and DSC analysis. The superabsorbent nanocomposite with excellent water absorbency and water retention could be especially useful in industry, agricultural, horticultural applications.
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