【摘要】 以脲素、甲醛、糠醇为原料 ,探索适当的合成工艺条件 ,合成出粘度适宜的糠脲树脂。以一定量糠脲树脂为改性剂 ,以淀粉胶为主要胶接原料制得的改性淀粉胶的初粘时间小于 2 min,固含量为 2 2 % ,贮存期大于6 0 d,对纸板粘接强度比普通淀粉胶高 ,可用于纸质包装工业。更多还原

【Abstract】 A furancarbinol urea formaldehyde having suitable viscosity was synthesized which used the urea, formaldehyde,and furfuralcohol as raw materials und the suitable conditions. A kind of modified starch adhesive can be made by mixing an amount of furancarbinol urea formaldehyde resin as modifier with starch adhesive as main adhesive content. This modified starch adhesive can cure in less than 2 min and keep in unchange in three months or longer when its solid materials content is 22%. The adhesive strength of pappe is higher than general starch adhesives and can be used for paper packing industry.更多还原