摘要
以聚乙酸乙烯酯乳液(PVAc)和乙酸乙烯酯-乙烯共聚乳液(VAE)为基体树脂,PVA为粘度调节剂,多亚甲基多苯基多异氰酸酯(PAPI)为交联剂制备了一种具有在常温常压条件下使用,并表现良好的力学性能的木材组装胶粘剂。通过激光粒度分析及力学性能测试研究了配方组成及粘度、固含量和交联剂含量对胶粘剂性能的影响。结果表明:M(PVAc):M(VAE)、M(PVA):M(重钙)=37.5%:25%:6%:2.5%,;交联剂(PAPI)=8%(基于主剂质量),常温常压养护48小时后,可得到粘接强度为13.6MPa,耐候性优异的木材组装胶粘剂。
To solve the problem of the strong adhesive in normal temperature and pressure, a new wood assembled adhesive based on water-based polymer - isocyanate adhesive (API) is developed. The effect of prescription composition, viscosity, solid content and crosslink agent content were studied by laser particle size analyzer and mechanical property test on the properties of adhesive. when the content of polyvinyl acetate emulsion (PVAc), vinyl acetate - ethylene copolymer emulsion (VAE), polyvinyl alcohol(PVA), heavy calcium were weight ratio of 37.5%, 25%, 6%, 2.5%, and the polyaryl methene isocyanate (PAPI)= 8%(host-based quality), the results show that wood assembled adhesive exhibits excellent adhesive strength(13.6 MPa).
出处
《现代盐化工》
2016年第2期4-7,共4页
Modern Salt and Chemical Industry
基金
江苏省自然科学基金项目资助
项目编号:BK2012142
