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实验采用部分析因设计探讨对桉木纸浆纤维素接枝丙烯酸制备高吸水树脂的影响因素,并对主要影响因素进行L9(34)正交实验优化最佳制备条件。桉木纸浆纤维素接枝丙烯酸制备高吸水树脂的主要显著影响因素按照影响程度排序为反应温度、引发剂用量、中和度及交联剂用量。桉木纸浆纤维素与丙烯酸及其钠盐接枝共聚的最佳工艺条件为:反应温度60℃,引发剂用量1.0%,中和度70%,交联剂用量0.05%,此条件下制备的高吸水树脂吸水倍率为521g/g。红外光谱图显示,丙烯酸已经成功的接枝到桉木纸浆纤维素分子上。
The factors influencing the preparation of superabsorbent resin by cellulose grafted acrylic acid on eucalyptus pulp were explored by using fractional factorial design. The optimum conditions were optimized by L9 (34) orthogonal experiment. Eucalyptus pulp cellulose graft acrylic acid preparation of superabsorbent resin significant influence factors ranked according to the degree of influence of the reaction temperature, the amount of initiator, the degree of neutralization and the amount of crosslinking agent. The optimal conditions for the graft copolymerization of cellulose and acrylic acid and their sodium salts were as follows: the reaction temperature was 60 ℃, the amount of initiator was 1.0%, the degree of neutralization was 70%, the amount of crosslinking agent was 0.05% High water absorption resin absorbent capacity of 521g / g. Infrared spectroscopy shows that acrylic acid has been successfully grafted onto eucalyptus pulp cellulose molecules.