玉米淀粉胶粘剂的增强及耐水改性研究  

Study on modified corn starch adhesive in reinforcing and water-resistance

作　　者：聂亚楠[1] 田孝才[1] 吴凯[1] 汪济奎[1] 

机构地区：[1]华东理工大学,上海200237

出　　处：《中国胶粘剂》2012年第11期15-18,共4页China Adhesives

基　　金：国家关键技术研究发展计划项目(2012BAD32B01)

摘　　要：以淀粉接枝聚醋酸乙烯酯(淀粉-g-PVAc)作为增强组分,环氧树脂(EP)作为耐水改性组分,制备了一种新型的粘接强度较高、耐水性较好的玉米淀粉胶粘剂。结果表明:当m(淀粉-g-PVAc)∶m(EP)=2∶1、w(淀粉-g-PVAc/EP)=70%(相对于氧化淀粉乳质量而言)时,改性淀粉胶粘剂的综合性能相对最好,其干态剪切强度和湿态剪切强度分别为4.50、2.51 MPa,黏度为0.875 Pa.s;该改性淀粉胶粘剂在胶合板生产领域中具有良好的应用前景。With starch-g-PVAc（starch grafted by polyvinyl acetate） as reinforcing component,epoxy resin（EP） as water-resistance modified component,a new corn starch adhesive with higher bonding strength and better water-resistance was prepared. The results showed that the modified starch adhesive had the reversely best combination property and good application prospect in the field of plywood production because its dry shear strength and wet shear strength were 4.50,2.51 MPa respectively,the viscosity was 0.875 Pa·s when mass ratio of m （starch-g-PVAc）：m（EP） was 2：1, mass fraction of starch-g-PVAc/EP was 70% in oxidized starch emulsion.

关 键 词：玉米淀粉 胶粘剂 增强改性 耐水改性 剪切强度 

分 类 号：TQ432.2[化学工程]