Ⅰ型淀粉基API木材胶粘剂的研究  

Study on preparation for Ⅰtype starch-based API wood adhesives

作　　者：时君友[1] 顾继友[2] 涂怀刚[3] 王淑敏[3] 

机构地区：[1]清华大学化学工程系,北京100084 [2]东北林业大学材料科学与工程学院,黑龙江哈尔滨150040 [3]北华大学木材科学与工程系,吉林吉林132013

出　　处：《中国胶粘剂》2008年第4期21-26,共6页China Adhesives

基　　金：科技部农业转化资金项目(03EFN212200069);吉林省科技发展计划重点项目(2040204-2-1)

摘　　要：利用复合变性玉米淀粉制备了Ⅰ型淀粉基水性高分子异氰酸酯(API)胶粘剂。以复合变性淀粉乳液、二元酸、聚乙烯醇(PVA)和聚异氰酸酯(PMDI)为主要影响因素,以压缩剪切强度为评价目标,通过正交试验优化出满足JISK6806-1995要求的Ⅰ型淀粉基API胶粘剂的配方,对影响胶粘剂理化性能的因素进行了系统分析。经验证性试验证明,所优化出的最佳配方具有明显的生产可操作性,交联剂PMDI可不经封闭直接使用,完全能满足现有的木材胶合制品的生产工艺要求,其原料成本为同类进口胶粘剂的1/3,具有明显的社会环境效益和经济效益。Ⅰ type starch-based aqueous polymer isocyanate（API） adhesive was prepared by composite modified corn starch. Composite modified starch emulsion,dicarboxylic acid,polyvinyl alcohol（PVA）,poly-isocyanate （PMDI） as main influencing factor,compression shearing strength as evaluation target,formulation of Ⅰ type starchbased API adhesive with meeting index requirement for JIS K 6 806-1995 is optimized by orthogonal test and the factor of effect on physical and chemical properties of adhesive is analyzed systematically. The results of validating test showed that the best formulation has obvious maneuverability in produce. Cross-linking agent PMDI is directly used without sealing,which meets completely requirement for manufacture process of wood glue-product and the cost is equivalent to 1/3 of congener imported adhesive. So it has obvious social environment and economical benefit.

关 键 词：玉米淀粉 复合变性 水性 异氰酸酯 胶粘剂 胶合制品 压缩剪切强度 

分 类 号：TQ432.2[化学工程]