单组分聚氨酯热固化胶粘剂用于内嵌式推拉窗的可行性研究  

Feasibility study of one-component polyurethane thermosetting adhesive for embedded sliding window

作　　者：詹锋 黄加俊 李桂妃 谢志明 Zhan Feng;Huang Jiajun;Li Guifei;Xie Zhiming(Guangdong Pustar Material Technology Co.,Ltd.,Dongguan 523600,Guangdong,China)

机构地区：[1]广东普赛达材料科技股份有限公司,广东东莞523600

出　　处：《中国胶粘剂》2025年第2期52-56,共5页China Adhesives

摘　　要：将单组分聚氨酯热固化胶和湿气固化聚氨酯密封胶用于汽车内嵌式推拉窗制造过程中的铝型材粘接。对比了两种胶的固化性能、剪切性能,着重探讨了热固化胶用于内嵌式推拉窗的可行性。研究结果表明:(1)热固化胶用于阳极氧化铝基材与黑边玻璃的粘接组装时,必须配合活化剂和底涂同时使用。(2)不同温度对两种密封胶固化速度表现明显差异。随着温度的升高,湿固化胶结皮速度加快,固化厚度呈现先增加后降低的情况,但变化幅度较小。热固化胶粘剂低温表干时间较慢,随着温度增加,固化厚度快速增加。(3)湿固化胶养护时间为8 h,23、70和90℃条件下,剪切力分别为203、243和187 N,均小于装箱要求的600 N,无法满足8 h内快速装箱技术要求。(4)热固化胶在70℃、养护4 h时,固化厚度可达3.56 mm,剪切力达到1 466 N,可以实现清胶快速装箱;提高养护温度到90℃,清胶装箱的间隔时间可以缩短到20 min,此时固化厚度可达5.24 mm,剪切力达到2 126 N。热固化胶的这两种工艺条件均能有效适用于内嵌式推拉窗短周期装配。The one-component polyurethane thermosetting adhesive and moisture-curing polyurethane sealant were applied to the bonding of aluminum profiles in the manufacturing process of automotive embedded sliding window.The curing properties and shear performance of two types of adhesive were compared,and the feasibility of using the thermosetting adhesive for embedded sliding window was analyzed.The research results indicated that,(1)When thermosetting adhesive was used for bonding and assembling anodized aluminum substrate with black edge glass,it must be used together with activator and primer.(2)There was a significant difference in the curing speed of two sealants at different temperatures.With the increase of temperature,the skinning speed of moisture-curing adhesive accelerated,and the curing thickness showed a trend of first increasing and then decreasing,but the change range was relatively small.The surface drying time of thermosetting adhesive was slow at low temperature,and as the temperature increased,the curing thickness increased rapidly.(3)The curing time of the moisture-curing adhesive was 8 hours.Under the conditions of 23,70,and 90℃,the shear forces were 203,243,and 187 N,respectively,all of which were less than the required 600 N for packaging,and could not meet the technical requirements for rapid packaging within 8 hours.(4)When the thermosetting adhesive was cured at 70℃for 4 hours,the curing thickness could reach 3.56 mm,and the shear force could reach 1466 N,which could achieve rapid cleaning adhesive and packaging.By increasing the curing temperature to 90℃,the interval time between cleaning adhesive and packaging could be shortened to 20 minutes.At this time,the curing thickness could reach 5.24 mm and the shear force could reach 2126 N.Both of these process conditions for thermosetting adhesive could be effectively applied to the short cycle assembly of embedded sliding window.

关 键 词：单组分 聚氨酯 热固化胶 推拉窗 

分 类 号：TQ436.6[化学工程]