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通过溶液聚合的方法,以丙烯酰胺和浆板制备了纤维素系高吸水树脂;研究了单体量、合成温度、引发剂量、交联剂量、水解浓度对树脂吸水能力的影响,并确定树脂的最佳制备条件为:浆板3g,单体量18g,交联剂量0.08g,引发剂量0.6g,合成温度70℃,水解浓度0.7mol/L,此时吸水倍率最高,达到633.3g/g;采用红外光谱(FT-IR)、X-射线衍射(XRD)、热重分析(TGA)和扫描电镜(SEM)分别对树脂进行表征并分析了高吸水树脂的结构。
The effects of monomer amount, synthesis temperature, initiator amount, cross-linking agent and hydrolysis concentration on the water absorption capacity of the resin were investigated by means of solution polymerization. Acrylamide and pulp board were used to prepare cellulose superabsorbent. The optimum preparation conditions were as follows: pulp plate 3g, monomer amount 18g, cross-linking agent 0.08g, initiator 0.6g, synthesis temperature 70 ℃, hydrolysis concentration 0.7mol / L, the highest water absorption rate 633.3g / g; The structure of superabsorbent polymer was characterized by FT-IR, XRD, TGA and SEM.