低毒脲醛树脂胶粘剂在E_1级胶合板中的应用  

Application of Low Toxic Urea-Formaldehyde Resin in E_1 Plywood

作　　者：唐朝发[1] 杜洪双[1] 朱常君 李杉[1] 刘彦龙[1] 

机构地区：[1]北华大学,吉林132013 [2]吉林珲春亚鑫木业,吉林珲春133300

出　　处：《人造板通讯》2005年第11期19-22,共4页Wood-Based Panels

摘　　要：在低毒脲醛树脂胶粘剂合成过程中加入淀粉或氧化淀粉,能有效地改善胶合板板坯的预压性能和胶合板的胶接强度。当淀粉、氧化淀粉加入量为合成低毒脲醛树脂胶粘剂所用尿素量的30%～40%时,达到较好的使用效果。通过在低毒脲醛树脂胶粘剂调制过程中加入低成本API对低毒脲醛树脂胶粘剂进行改性,亦能改善胶合板板坯的预压性能和胶合板的胶接强度。试验表明,随着低成本API加入量的增加,胶合板的预压性能、胶接强度都有明显提高。考虑成本原因,低成本API的加入量为3%～10%即可达到较好的使用效果。改性低毒脲醛树脂胶粘剂能适应多层胶合板的生产。Adding amylum or oxidized amylum in the synthesis process of low toxic urea-formaldehyde resin can improve pre-press capability and bonding strength of plywood. When the quantity of amylum or oxidized amylum added is 30%～40% of urea in composition ,the low toxic UF shows better effect. Adding low cost API to UF resin can also gain the same purpose. Experiment results showed that pre-press capability and bonding strength of plywood can be improved distinctly with increasing added quantity of low cost API. In consideration of manufacture cost, adding low cost API to UF by 3%～10% of UF makes preferable effect. Low toxic UF resin is fit for manufacturing multi-ply plywood.

关 键 词：低毒脲醛树脂 预压性能 改性 物理力学性能 

分 类 号：TS653[轻工技术与工程]