钠基蒙脱土增强豆胶的耐水性研究

摘要

The adhesion strength and water resistance of soy protein based adhesives were enhanced by adding Na-montmorillonite(Na-MMT). The adhesion strength and water resistance were the highest when 1 wt% Na-MMT was added. The adhesion strength and type- Ⅱ wet strength of the poplar plywood were improved by 20.5% and 18.8% respectively. The water resistance mechanism of Na-MMT enhanced soy protein based adhesion was analyzed by using XRD, TEM, FTIR and contact angle.%钠基蒙脱土(Na-MMT)的加入,提高了大豆蛋白胶黏剂的预压性能、粘接强度和耐水性,当Na-MMT的加入量为大豆分离蛋白的1 wt％时,增强效果最好,可以使杨木胶合板的干强度和Ⅱ类湿强度分别提高20.5％和18.8％；利用XRD、TEM、FUR、接触角等分析方法研究了Na-MMT增强豆胶耐水性的机理.