热压型淀粉基水性异氰酸酯木材胶黏剂的研制  

Preparation for Ⅱ Type Starch-based API with Composite Modified Starch

作　　者：陈晓波[1] 时君友[1] 顾继友[2] 

机构地区：[1]北华大学,吉林132013 [2]东北林业大学

出　　处：《东北林业大学学报》2008年第7期78-80,共3页Journal of Northeast Forestry University

基　　金：农业科技成果转化资金项目(2007GB2B10078);吉林省科技发展计划重点项目(2040204-2-1)

摘　　要：对利用复合变性玉米淀粉,制造热压型淀粉基水性高分子——异氰酸酯胶黏剂(API)进行了系统的研究。以复合变性淀粉乳液、二元酸、聚乙烯醇、PMDI为主要影响因素,以拉伸剪切强度为评价目标,通过正交试验优化出满足日本JISK6806—1995指标要求的热压型淀粉基API的配方,对影响胶黏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,完全能够满足现有的木材胶合制品生产工艺的要求。An experiment was conducted to study Ⅱ type starch-based water polymer isocyanate adhesive （API） by preparing with composite modified corn starch. The formulation of I type starch-based API meeting the index requirement for JISK 6806 - 1995 was optimized by orthogonal test, and the factors affecting the physical and chemical properties of adhesive were analyzed systemically using composite modified starch latex, dicarboxylic acid, polyvinyl alcohol, PMDI as main influencing factors and compressive shearing strength as evaluation target. Result shows that the optimized formulation is applicable. Cross-linking agent PMDI can be directly used without sealing, which completely meets the requirement for manufacture nrocess of wood glue-oroduet.

关 键 词：玉米淀粉 复合变性 水性高分子——异氰酸酯胶黏剂 胶合制品 拉伸剪切强度 

分 类 号：TQ430[化学工程]