The environmentally friendly wood adhesive was synthesized by raw materials of cassava starch, mela-mine, formaldehyde and crosslinking agent. To improve the bonding strength and reduce the emission of free formaldehyde, the experiments were optimized through uniform design, the bonding strength of the adhesive was detected and analyzed, and the optimal formula was chosen, which was practical and good function. The experiment results show that:(l) The best conditions for the synthesis process were mole ratio of formaldehyde to melamine 2. 2, mass ratio of crosslinking agent to water was 2. 5% ;(2) The optimum technological parameters for producing plywood were determined as follows: hot-press temperature 155℃ , hot-pressing time 370 s, filler 22%; (3) The bonding strength of the adhesive met the requirements of the Plywood II of the National Standard (GB/T14732 - 2006), the emission of free formaldehyde of the plywood satisfied E2 of GB/T18580 - 2001, part of them satisfied E1.%以木薯淀粉、三聚氰胺、甲醛为原料,再辅以交联剂合成了环保型木材胶粘剂.通过均匀设计来优化实验,并对其胶合强度进行检测和分析,从胶合强度和甲醛释放量等方面考虑,寻求性能良好且又实用的最优配方.实验结果表明:(1)胶粘剂最佳合成条件为:三聚氰胺与甲醛的摩尔比为2.2,盐酸/水质量百分比为2.5％;(2)胶合板最佳胶合工艺为:热压温度为155℃、热压时间为367 s、填料为22％、固化剂为1.4％；(3)胶合强度均达到了国家标准(GB/T14732- 2006)Ⅱ类胶合板的要求,压制胶合板的游离甲醛释放量都达到E2级,部分达到E1级.
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