海藻接枝丙烯酸高吸水性树脂的制备及性能研究

采用海藻为原料与丙烯酸接枝共聚制备了高吸水性树脂。通过红外光谱(FT-IR)分析了产物的结构。考查了丙烯酸中和度、丙烯酸用量、引发剂和交联剂的用量以及反应温度等各因素对产物吸水率的影响。结果表明,所得树脂的吸水率可达618g/g,吸盐水率(0.9%的NaCl水溶液)达到120g/g,其吸水速率适中,热稳定性和在室温下的保水性均较好,是一种新的环保型高吸水性树脂。FT-IR初步表明了丙烯酸与海藻的接枝聚合作用。

Study on synthesis of the superabsorbent polymer by grafting acrylic acid on alga

The superabsorbent polymer was synthesized with acrylic acid grafted on alga.The structure of this product was analysed by IR.The effects of factors such as neutralization,amount of graft monomer,initiator and cross-linking agent and temperature on the superabsorbent polymer were discussed.The results showed that the absorbent ability of the resin was 618g/g for pure water and120g/g for 0.9%NaCl solution.Its thermal stability and the capability of keeping water in room temperature were good,it is a new water-absorbent with high performance.FT-IR indicated that acrylic acid was grafted on alga.