利用再生纸浆制备高吸水性树脂的合成工艺  

Synthesis technology of super water-absorbent resin by grafting acrylic acid from reclaimed pulp cellulose

作　　者：郑彤[1] 王鹏[2] 闫杰[2] 张志谦[2] 

机构地区：[1]哈尔滨工业大学环境科学与工程系,哈尔滨150001 [2]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《现代化工》2001年第11期35-37,39,共4页Modern Chemical Industry

基　　金：哈尔滨工业大学跨学科交叉性研究基金资助项目 (HITMD2 0 0 0 2 8)

摘　　要：以微波辐射为引发热源 ,以再生纸浆为原料与单体丙烯酸在复合引发剂 (硝酸铈铵和过硫酸钾 )引发下进行非均相接枝共聚反应 ,合成高吸水性树脂。经过选择和优化得到最佳的工艺条件为 :单体中和度为 75 %,单体体积与纸浆干重之比为 2 1∶2 ,引发剂硫酸铈铵与过硫酸钾的用量分别为 0 0 6ml和 0 1 2ml,在 75℃下引发 5min后反应 1 6h。得到的树脂每克吸水1 0 60g ,吸盐水 (0 9%NaCl) 1 0 8g。A super water-absorbent resin was synthesized from reclaimed pulp cellulose and acrylic acid by graft copolymerization under microwave irradiation in heterogeneous phases and using ceric ammonium nitrate and potassium persulfate as initiators. The optimal synthesis conditions were as following: first initiating for 5 min by 0.06 ml ceric ammonium nitrate and 0.12 ml potassium persulfate as initiators, then reacting for 16h under 75°C with 75% of monomer neutralization degree and 21:2 of proportion of monomer volume to dry pulp weight. The resin prepared has a super water absorption capacity of 1 060 g/g for deionized water or 108 g/g for 0.9% NaCl saline water.

关 键 词：高吸水性树脂 纤维素 丙烯酸 再生纸浆 制备 合成工艺 废水处理 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业] X793[环境科学与工程—环境工程]