铝合金用聚氨酯底漆的制备和性能研究  

Investigation on Preparation and Properties of Aluminum Polyurethane Primers

作　　者：周伟[1] 曾凡辉[1] 张步峰[1] 王浩新[1] 李儒剑[1] 王红利[1] 

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《中国涂料》2014年第3期52-55,共4页China Coatings

摘　　要：研制了一种铝合金用聚氨酯底漆。结果表明,添加聚酯树脂,铝合金底漆附着力、柔韧性、硬度和抗冲击强度都得到了改善;硅烷偶联剂能提高涂膜对金属基体的附着力,当硅烷偶联剂的添加量为1%时,涂膜对基材的拉开法附着力为5.88 MPa;不同固化剂对涂膜柔韧性和附着力有影响,当选用N3390作固化剂时,涂膜具有优异的综合性能。所研制铝合金底漆与聚氨酯面漆能满足湿碰湿的施工工艺要求。Aluminum polyurethane primers were prepared. Tests results indicated adhesion, flexibility, hardness and anti- impact strength of aluminum primers were improved by adding polyester resin. Silane coupling agent could increase the coating adhesion. When silane coupling agent at 1.0%, the adhesion reached 5.88 MPa. Different curing agents influenced adhesion and anti-impact strength. When N3390 was used as curing agent, the coating exhibited excellent performance. The developed aluminum primer and polyurethane topcoat met the requirements of wet on wet process.

关 键 词：铝合金 聚氨酯底漆 附着力 硅烷偶联剂 湿碰湿工艺 

分 类 号：TQ630.7[化学工程—精细化工]