【摘要】 采用黄原胶为原料与丙烯酸接枝共聚制备了高吸水性树脂,考查了合成条件对所制得的高吸水性树脂吸水性能的影响.结果表明,在聚合温度为65℃,丙烯酸单体∶黄原胶=5∶1(质量比),丙烯酸中和度为75%,引发剂和交联剂与丙烯酸单体的质量比分别为0.08和0.031时,所得树脂的吸水倍率可达1026 g.g-1,吸盐水倍率达到716 g.g-1,且吸水速率适中,保水性能较好,是一种新型的环保型高吸水性树脂.更多还原

【Abstract】 The superabsorbent polymer was synthesized with acrylic acid grafted on xanthan gum.The effects of factors such as neutralization,amount of graft monomer,initiator and cross-linking agent and temperature on the swelling ratio of the superabsorbent polymer were discussed.The optimum reaction conditions were determined as follows: reaction temperature 65℃,AA∶xanthan gum=5∶1 and neutralization 75%,dosage of initiator 0.08and cross-linking agent 0.031(based on mass of acrylic acid).The results show that the absorbent ability of this resin was 1 026 g·g-1 for pure water and 716g·g-1 for NaCl solution.The speed of water absorption was moderate and water-retention ability were good,it is a new water-absorbent with high performance.更多还原