建筑门窗用单组分聚氨酯组角胶的性能研究  

Performance of polyurethane corner-combining sealant applied in windows and doors

作　　者：刘亚琼 尹业琳 陈淼 龚洪洋 孔军仕 岳丽清 

机构地区：[1]郑州中原思蓝德高科股份有限公司,河南郑州450001

出　　处：《粘接》2017年第2期26-28,共3页Adhesion

摘　　要：制备了一种建筑门窗用单组分聚氨酯组角胶,按GB/T7124—2008对其铝合金-铝合金的粘接性能进行了评价。结果表明其在标准条件养护7 d、14 d和21 d,剪切强度分别达6.20MPa,7.27 MPa、8.30 MPa,与国外同类产品基本相当;经过40℃浸水72 h后与浸水之前相差不大;120℃高温3 h、90℃高温300 h以及高温高湿(温度85℃,相对湿度85%)300 h处理后,剪切强度均有所增强,具有优良的耐温耐湿热性能。A polyurethane corner-combining sealant applied in windows and doors was prepared, and its bonding properties for aluminum alloy-alumunum alloy were evaluted according to the GB/T7124-2008. The results indicated that its tensile lap-shear strength results were 6.20 Mpa, 7.27 MPa and 8.30 MPa after maintaining at the standard conditions for 7d, 14 d and 21 d, respectively, which were similar with the results of similar foreign products. The tensile lap-shear strength of the sealant was kept well after soaking at 40℃ for 72 hours in water, and the tensile lap-shear strengths of the sealant were slightly increased after being processed at 120℃ for 3 hours, at 90℃ for 300 hours or at 85℃, RH 85% for 300 hours. The sealant had excellent temperature resistance and resistance to heat and humidity.

关 键 词：聚氨酯 组角胶 剪切粘接性能 

分 类 号：TQ433.432[化学工程]