摘要
利用聚乙烯(PE)回收料和具有亲水性基团的丙烯酸(AA),通过反相乳液聚合法接枝共聚合成了环保型PE-AA吸水树脂。探讨了原料配比、NaOH溶液用量、反应温度、反应时间、引发剂种类及其用量、交联剂用量等因素对吸水树脂吸水率的影响。实验结果表明,在m(AA):m(PE)为8:1、AA用量32g、质量分数25%的NaOH溶液40mL、反应温度70℃、反应时间3h、引发剂(过硫酸铵/亚硫酸氢钠)6mL、交联剂(环氧氯丙烷)2mL的条件下,制备的PE-AA吸水树脂的吸水率为455.3g/g。PE、聚丙烯、聚苯乙烯与AA接枝共聚所得吸水树脂中,PE-AA吸水树脂的性能较优。
Environmental protection super absorbent resin by opposition-emulsion polymerization method stem grafting acrylic acid （AA） and polyethylene （PE） as monomer. reaction temperature, reaction time, initiator type and its polyethylene-acrylic acid （ PE - AA） was synthesized copolymerization using water affinity groups and bases Effects of raw material dosage, NaOH solution dosage, dosage, crosslinking agent dosage and so on were studied. Obtained polymerizations conditions were m（AA） ： m（PE） 8 ： 1, AA 32 g, 25% （w） NaOH solution 40 mL, reaction temperature 70℃, reaction time 3 h, initiator （NH4 ）2S20s/NaHSO3 6 mL, crosslinking agent epichlorohydrin 2 mL, water absorption of this resin was 455.3 g/g. Experimental results conformed that water absorption of super absorbent resin PE-AA was better than other resins grafting by polypropylene or polystyrene.
出处
《合成材料老化与应用》
2009年第1期28-32,共5页
Synthetic Materials Aging and Application
关键词
聚乙烯
丙烯酸
吸水树脂
交联
聚合
polyethylene
acrylic acid
absorbent resin
crosslink
polymerization
