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.

这项研究旨在解决 Composites VCI Inc. 感兴趣的问题，该公司专门从事铝夹芯板的结构粘合。他们目前正在使用铝阳极氧化来确保铝件之间良好的粘合。虽然阳极氧化提供了良好的粘合强度，但这种处理非常昂贵，并且由于具有吸湿性，这种处理的稳定持续时间很短。因此，该项目的目标是（i）用温和的碱性溶液对铝表面进行化学蚀刻，（ii）用创新有机分子混合物的自组装单层（SAM）对其进行改性，以及（iii）研究它们对吸水性的耐久性环境。此外，在蚀刻和 SAM 改性铝表面之间进行粘合以进行测试。