单宁基胶粘剂的研究  

Study on tannin base adhesive

作　　者：王璇[1] 吴志刚[2] 雷洪[1] 周卫红 苏莉[2] 杜官本[1] 

机构地区：[1]西南林业大学,云南省木材胶粘剂及胶合制品重点实验室,云南昆明650224 [2]贵州大学林学院,贵州贵阳550025 [3]江西省高安四中,江西高安330800

出　　处：《中国胶粘剂》2017年第2期35-38,42,共5页China Adhesives

基　　金：云南省科技厅国际合作项目(2014IA017);“十二五”国家科技支撑计划项目(2015BAD14B03);云南省中青年学术带头人后备人才项目(2011HB024)

摘　　要：以杨梅单宁、相思单宁或黑荆树单宁为基体材料,甲醛(F)、戊二醛、乙二醛或糠醛为固化剂,PF(酚醛树脂)为键桥增长剂,制备了不同的单宁基胶粘剂,并着重探讨了单宁、固化剂类型对单宁基胶粘剂性能的影响。研究结果表明:单宁的类型和结构会影响单宁基胶粘剂的性能,黑荆树单宁胶粘剂具有相对最高的干态胶接强度和耐沸水胶接强度;添加固化剂和键桥增长剂,可制备耐沸水性优良的单宁基胶粘剂;F是单宁基胶粘剂理想的固化剂,但不适合大规模使用,可用乙二醛替代F作为单宁基胶粘剂的固化剂。With waxberry tannin,acacia tannin or black wattle tannin as matrix materials,formaldehyde（F）,glutaraldehyde,glyoxal or furfural as curing agents,PF（phenolic resin）as a chain bridge agent,the different tanninbase adhesives were prepared.And the influences of types of tannin and curing agent were emphatically discussedon the properties of tannin base adhesives.The research results showed that the types and structures of tannin willimpact the properties of tannin base adhesives,and the black wattle tannin adhesive had the relatively highestbonding strength at dry and boiling water resistance.The tannin base adhesive with good boiling water resistancecould be prepared by adding curing agent and chain bridge agent.F is an ideal curing agent of tannin base adhesive,but it is not suitable for large-scale use,so the glyoxal as a substitute of F could be used as curing agent of tanninbase adhesive.

关 键 词：单宁 胶粘剂 固化剂 胶接强度 耐沸水性 

分 类 号：TQ432.9[化学工程]