改性聚乙烯醇耐水淀粉粘合剂  

Modified Polyvinyl Alcohol Water Resistance Starch Adhesive

作　　者：夏聪 孔一萍 罗碧蔚 柯琪 奚源 陈琢 李琴[1] XIA Cong;KONG Yi-ping;LUO Bi-wei;KE Qi;XI Yuan;CHEN Zhuo;LI Qin(Zhixing College,Hubei University,Hubei Wuhan 430011,China)

机构地区：[1]湖北大学知行学院,湖北武汉430011

出　　处：《广州化工》2021年第17期115-116,共2页GuangZhou Chemical Industry

基　　金：2020年湖北省大学生创新创业训练项目。

摘　　要：淀粉粘合剂通常需要加入甲醛,会对环境和人体造成一定的伤害。本文将用过硫酸铵改性后的聚乙烯醇(PVA)胶,加入到经过氧化氢氧化的大米淀粉中,再加入硼砂交联制备淀粉-聚乙烯醇粘合剂,无需添加甲醛。对产品性能进行分析,探究最佳反应条件。结果表明:氧化淀粉为30 g,聚乙烯醇为1.5 g,过硫酸铵为0.12 g时,氧化淀粉与聚乙烯醇反应效果最佳,粘合剂的粘合强度、耐水性能较好。Starch adhesives usually need to add formaldehyde,which will cause certain harm to the environment and human body.The polyvinyl alcohol(PVA)adhesive modified by ammonium persulfate was added to the rice starch oxidized by hydrogen oxide,and then borax was cross-linked to prepare starch-PVA adhesive without formaldehyde.The product performancewas analyzed to explore the best reaction conditions.The results showed that when the oxidized starch was 30 g,PVA was 1.5 g and ammonium persulfatewas 0.12 g,the reaction effect of oxidized starch and PVA was the best,and the adhesive strength and water resistance were good.

关 键 词：耐水性 淀粉粘合剂 环境保护 改性PVA 

分 类 号：TQ433[化学工程]