摘要
以G(乙二醛)取代部分F(甲醛),合成了GUF[乙二醛-U(尿素)-甲醛共缩聚树脂];然后以此作为胶粘剂基体,制备了相应的GUF胶合板。着重探讨了原料配比对GUF黏度和固含量的影响,并对GUF的结构、相对分子质量及其分布进行了表征,同时对GUF胶合板的热压过程、固化性能、力学性能和F释放量等进行了测定。研究结果表明:合成GUF的最佳原料配比是n(G)∶n(U)∶n(F)=0.7∶1.0∶0.7,此时相应GUF胶合板的F释放量和力学性能均满足GB/T 9846.3—2004标准中的指标要求,并且该胶合板可在干燥状态下直接用于室内装修。
With G （glyoxal） replaced part resin] was synthesized. Then, with GUF as matrix influences of raw material ratios on viscosities and s structure, molecular weight and its distribution were characterized, as well as the some properties （hot-pressing process, curing properties, mechanical properties, and F-emission） of GUF-plywood were tested. The research results showed that the optimal raw material ratio of synthesizing GUF was obtained when n （G） ：n （U） ：n （F） was 0.7： 1.0： 0.7. Here, the F-emission and mechanical properties of corresponding GUF-plywood could all meet the index requirement in GB/T 9846.3--2004 standard, and the drying plywood could be used in interior trim.
出处
《中国胶粘剂》
CAS
北大核心
2018年第1期1-6,共6页
China Adhesives
基金
国家林业局948项目(No.2014-4-40),云南省中青年学术和技术带头人后备人才培养项目(No.2017HB030),西南林业大学科研启动基金项目(111426)及国家自然科学基金项目(No.31260160).
