温湿度对SIKA聚氨酯胶粘剂工艺性能的影响  

Effect of humiture on processing propeties of Sika polyurethane adhesives

作　　者：王元伍[1] 李唯[1] 赵辉[1] 谢静思[1] 孙玉英[1] 董双良[1] 

机构地区：[1]唐山轨道客车有限责任公司,河北唐山063035

出　　处：《粘接》2013年第1期55-58,共4页Adhesion

基　　金："十一五"国家科技支撑计划资助(2009BAG12A01-G02-2)

摘　　要：研究了环境条件主要是温湿度对聚氨酯胶的表干时间、固化速率、初始剪切强度、粘接性能的影响。试验表明,对于结构粘接级别为A1和A2级的部件,SIKA 265、SIKA 221、SIKA 252胶的施工环境温度应为15～30℃、相对湿度为30%～70%;而对于以密封功能为主的部件,施工温度应为10～40℃、湿度为10%～80%。The effects of environmental condition,mainly the temperature and humidity, on the skin drying time,curing rate,green shearing strength and adhesion performance were investigated.The results showed the temperature and relative humidity of construction environment of the adhesives Sika 265,221 and 252 should be 15-35℃ and 30%- 70%,respectively,for the components having adhesion level A1 and level A2;and the construction environment temperature and relative humidity should be 10-40℃ and 10%-80%,respectively,for the components mainly used for sealing function.

关 键 词：聚氨酯 温湿度 工艺性 胶粘剂 

分 类 号：TQ433.432[化学工程]