Surface treatment of aluminum in structural adhesive bonding******

结构胶粘合中铝的表面处理******

• 批准号: 536374-2018
• 负责人: Sarkar, Dilip
• 金额: $ 1.82万
• 依托单位: Université du Québec à Chicoutimi
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=664311
• 关键词: Surface; treatment; aluminum; structural; adhesive

This study seeks to address a problem of interest for the Composites VCI Inc., specialized in the structural adhesive bonding of aluminum sandwich panels. They are currently using anodization of aluminum to ensure good adhesive bonding between aluminum pieces. While anodization provides good adhesive strength, this treatment is very expensive and the duration of the stability of this treatment is very short as it's hygroscopic. Therefore, the objectives of this project is to (i) chemically etch aluminum surface with mild alkaline solutions, (ii) modify them with self-assembled monolayers (SAM) of innovative organic molecules blend and (iii) study their durability against water absorption from environment. Furthermore, carryout the adhesive bonding between etched, and SAM-modified aluminum surfaces for testing.

本研究旨在解决复合材料VCI公司感兴趣的问题，专门从事铝夹芯板的结构粘合剂粘合。他们目前正在使用铝阳极氧化来确保铝片之间的良好粘合。虽然阳极氧化提供了良好的粘接强度，但这种处理非常昂贵，而且这种处理的稳定性持续时间非常短，因为它是吸湿的。因此，这个项目的目标是：(1)用温和的碱性溶液化学蚀刻铝表面，(2)用创新有机分子混合的自组装单层（SAM）修饰它们，(3)研究它们在环境中吸水的耐久性。此外，还对蚀刻铝表面和sam改性铝表面进行了粘接测试。