聚氨酯底涂剂的制备与性能研究  

Preparation and performance study of polyurethane primer

作　　者：张勇 陆瑜翀 李瑶 马玉民 蔡耀武 王建斌 Zhang Yong;Lu Yuchong;Li Yao;Ma Yumin;Cai Yaowu;Wang Jianbin(Zhengzhou Hollowlite Materials Co.,Ltd.,Zhengzhou 450100,Henan,China)

机构地区：[1]郑州圣莱特空心微珠新材料有限公司,河南郑州450100

出　　处：《中国胶粘剂》2023年第4期50-53,67,共5页China Adhesives

摘　　要：使用不同分子量的含羟基物质制备了不同的成膜物质,使用不同用量的双(3-三甲氧基甲硅烷基丙基)胺制备了不同的粘接助剂。分别制备了不同成膜物质、不同粘接助剂、不同空心玻璃微珠的聚氨酯底涂剂,测试分析了含羟基物质、粘接助剂、空心玻璃微珠用量对底涂剂性能的影响。研究结果表明:当使用分子量较大的含羟基物质A制备成膜物质时,表干时间会有不利影响,同时对底涂剂的粘接性能也有不良影响;随着粘接助剂中双(3-三甲氧基甲硅烷基丙基)胺质量分数在一定范围内(40%~53%)增加时,表干时间逐渐减少,底涂剂与基材之间的粘接往好的方向发展;空心玻璃微珠在一定范围内(质量分数为0.45%~0.89%)用量不会对底涂剂粘接强度有影响,大比表面积的空心玻璃微珠对底涂剂表干速度的影响要优于小比表面积的微球。Different film-forming substances were prepared by using hydroxyl-containing substances with different molecular weights,and different bonding auxiliaries were prepared by using different amounts of bis(3-trimethoxysilylpropyl)amine.Polyurethane primer with different film-forming substances,different bonding auxiliaries,and different hollow glass microspheres were prepared,and the effects of the amount of hydroxylcontaining substance,bonding auxiliary,and hollow glass microsphere on the performance of primer were tested and analyzed.The research results showed that when hydroxyl-containing substance A with larger molecular weight was used to prepare the film-forming substance,the surface drying time had adverse effects,and it also had adverse effects on the bonding performance of primer.As the mass fraction of bis(3-trimethoxysilylpropyl)amine in the bonding auxiliary increased within a certain range(40%-53%),the surface drying time gradually decreased,and the bonding between the primer and the substrate developed in a positive direction.The amount of hollow glass microsphere within a certain range(mass fraction 0.45%-0.89%)did not affect the bonding strength of primer,hollow glass microsphere with large specific surface area had a better effect on the surface drying speed of primer than microsphere with small specific surface area.

关 键 词：空心玻璃微珠 聚氨酯 底涂剂 成膜物质 

分 类 号：TQ430.4[化学工程]