摘要
以过硫酸钾为引发剂,羧甲基纤维素(CMC)、丙烯酸(AA)、丙烯酰胺(AM)和聚乙烯醇(PVA)为主要原料,采用水溶液聚合法制备了CMC-AA-AM/PVA半互穿网络高吸水树脂。结果表明:当丙烯酸中和度为65%,反应温度为70℃,制备树脂的较优配比为w(AA)∶w(CMC)∶w(PVA)∶w(KPS)∶w(AM)∶w(NMBA)=100%∶2.67%∶6.67%∶0.667%∶33.4%∶0.0467%,此时树脂的吸去离子水率达494 g·g^(-1)、吸生理盐水率达96.0g·g^(-1);对其离心保水率、吸水速率以及吸水溶胀动力学过程的研究表明,该吸水树脂有较好的保水能力和快速吸水能力。
A CMC-AA-AM/PVA semi IPN sumerabsorbent resin was synthesized via aqueous solution polymerization method using arboxymethyl cellulose（CMC）,acrylic acid（AA）,acrylamide（AM） and polyvinyl alcohol（PVA） as main raw materials and potassium persulfate as initiator,respectively.The results showed that the optimum conditions of this resin were as follows：100%∶2.67%∶6.67%∶0.667%∶33.4%∶0.0467% of w（AA）∶w（CMC）∶w（PVA）∶w（KPS）∶w（AM）∶w（NMBA）,neutralization degree was 65%,and reaction temperature was 70℃.Under these conditions,water absorbency rate of the resin was 494 g·g^（-1） and salty water absorbency rate was 96 g·g^（-1）.The study on centrifugal water retention rate,water absorption rate and swelling kinetics showed that the resin exhibited good water retention performance and rapid water absorption capacity.
出处
《南昌大学学报（工科版）》
CAS
2017年第4期314-319,342,共7页
Journal of Nanchang University(Engineering & Technology)
基金
国家自然科学基金资助项目(51568048)
