稻草焦油替代苯酚合成酚醛树脂胶黏剂的研究.pdfVIP

化 学 与 黏 合 2008年第 30卷第 3期 CH EM ISTRY AND ADH ESION ·5 · 稻草焦油替代苯酚合成酚醛树脂胶黏剂的研究 周建斌 , 　张合玲 , 　邓丛静 , 　张齐生 (南京林业大学 化学工程学院 ,江苏 南京 2 10037) 摘要 :用稻草焦油部分替代苯酚合成酚醛树脂胶黏剂 ,并对其性能进行了分析 。实验结果表明 ,稻草焦油替代量对所合 成的酚醛树脂胶黏度和胶合强度特性影响较大 ,当稻草焦油添加量为 25g,即替代量达到 19. 2%时 ,制备的酚醛树脂胶黏度适 中 ,游离甲醛质量分数低于 0. 5% ,具备较高的胶合强度 ,并且胶合强度达到 GB / T 9846 - 2004对 Ⅰ类胶合板的要求 。由于稻 草焦油的加入降低了胶黏剂的成本 ,其所制得的胶黏剂有良好的应用前景 。 关键词 :稻草焦油 ;酚醛树脂胶 ;胶合强度 中图分类号 : TQ 433. 43 1　　　　　文献标识码 : A 　　　　　文章编号 : 1001 - 0017 (2008) 03 - 0005 - 03 Study on Prep aration of Pheno l - form aldehyde R e sin A dhe sive from Straw Tar Sub stitu ting for Pheno l ZHOU J ian - b in , ZHAN G H e - ling, D EN G Cong - j ing and ZHAN G Q i - sheng ( Colleg e of Chem ica l E ng ineering, N anj ing F orestry Un iversity, N anj ing 2 10037, Ch ina) Abstract: The techn ique for p rep aring phenol - form aldehyde resin adhesive from straw tar and its p rop ertieswere studied and analyzed. The exp eri m ent showed that the viscosity and adhesion of the p rep ared phenol - form aldehyde resin adhesive was greatly affected by the sub stituted content of the straw tar. W hen the addition of straw tar was 25 g, i. e. the sub stitu ted content of straw tar reached 19. 2 % , the free form aldehyde content was lower than 0. 5% , the PF adhesive had moderate visco sity and h igh bonding strength , and the bonding strength cou ld m eet the requ irem ent of GB / T 9846 - 2004. The co st of the adhesive decreased for the u sing of straw tar, and therefore the adhesive had a good p rosp ect. Key words: Straw tar; p henol - form aldehyde resin adhesive; bonding strength