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一种用于改善铝镁合金粘接性能和耐久性的简单表面处理方法。

A Simple Surface Treatment for Improving the Adhesive Bonding Properties and Durability of an AlMg Alloy.

作者信息

Fan Changfeng, Yang Bo, Wang Xue, Zhan Xianghua, Yin Xiaoli, Shi Jianmin, Liu Yancong, Dilger Klaus

机构信息

College of Intelligent Manufacturing and Control Engineering, Shandong Institute of Petrochemical and Chemical Technology, Dongying 257061, China.

BYD Germany GmbH, Otto-Hahn-Street 21, 71069 Sindelfingen, Germany.

出版信息

Molecules. 2024 Dec 12;29(24):5856. doi: 10.3390/molecules29245856.

DOI:10.3390/molecules29245856
PMID:39769945
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11676185/
Abstract

The structural adhesive bonding of aluminum is widely used in the aircraft and automotive industries. The surface preparation of aluminum prior to adhesive bonding plays a significant role in improving the bonding strength. Surface cleanliness, surface roughness, and surface chemistry can be controlled, primarily, by proper surface treatment methods. In this study, the effect of varying the chemical treatment period on the adhesive bonding characteristics was investigated. An epoxy adhesive was used to join the treated surfaces, and the bond strengths were evaluated via single lap-shear (SLS) tests in pristine, as well as degraded, conditions. The surface morphology, chemistry, and corrosion properties of the surfaces with chemical treatments were characterized using various surface analytical tools, such as scanning electron microscopy, an energy dispersive spectrometer (SEM/EDX), and an electrochemical workstation. Excellent adhesion characteristics, with the complete cohesive failure of the adhesive, were encountered on the surfaces of the HO-treated samples. The HO-treated samples exhibited the highest initial bond strength, reaching 22.5 ± 0.5 MPa, and showed a decrease of only 10% (to 18.1 ± 0.2 MPa) after aging under extreme humidity and temperature conditions (70 °C and 100% R.H. for 4 weeks). The chemical treatment reported in this work is a very simple method to produce durable joints.

摘要

铝的结构胶接在航空航天和汽车工业中得到广泛应用。在进行胶接之前，铝的表面处理对于提高胶接强度起着重要作用。表面清洁度、表面粗糙度和表面化学性质主要可通过适当的表面处理方法来控制。在本研究中，研究了改变化学处理时间对胶接特性的影响。使用环氧胶粘剂连接经过处理的表面，并通过单搭接剪切（SLS）试验在原始状态以及老化状态下评估胶接强度。使用各种表面分析工具，如扫描电子显微镜、能量色散光谱仪（SEM/EDX）和电化学工作站，对经过化学处理的表面的形貌、化学性质和腐蚀性能进行了表征。在经HO处理的样品表面，遇到了优异的粘附特性，胶粘剂出现完全内聚破坏。经HO处理的样品表现出最高的初始胶接强度，达到22.5±0.5 MPa，并且在极端湿度和温度条件（70°C和100%相对湿度，持续4周）下老化后，强度仅下降了10%（降至18.1±0.2 MPa）。本工作中报道的化学处理是一种生产耐用接头的非常简单的方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/8750040d5234/molecules-29-05856-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/ea4f59b5f09f/molecules-29-05856-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/f2aa596cc391/molecules-29-05856-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/4517efdb7ae5/molecules-29-05856-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/1484582041f0/molecules-29-05856-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/2f92ea0e3a2d/molecules-29-05856-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/57547505ceb6/molecules-29-05856-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/b884892a4308/molecules-29-05856-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/d8dab60859c2/molecules-29-05856-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/bf076aa3231d/molecules-29-05856-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/841b9b619575/molecules-29-05856-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/8750040d5234/molecules-29-05856-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/ea4f59b5f09f/molecules-29-05856-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/f2aa596cc391/molecules-29-05856-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/4517efdb7ae5/molecules-29-05856-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/1484582041f0/molecules-29-05856-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/2f92ea0e3a2d/molecules-29-05856-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/57547505ceb6/molecules-29-05856-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/b884892a4308/molecules-29-05856-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/d8dab60859c2/molecules-29-05856-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/bf076aa3231d/molecules-29-05856-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/841b9b619575/molecules-29-05856-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6ec8/11676185/8750040d5234/molecules-29-05856-g011.jpg

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本文引用的文献

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Materials (Basel). 2023 Aug 18;16(16):5674. doi: 10.3390/ma16165674.
2
Investigation on the composition and corrosion resistance of cerium-based conversion treatment by alkaline methods on aluminum alloy 6063.6063铝合金碱性铈基转化膜的成分及耐蚀性研究
RSC Adv. 2020 Oct 6;10(60):36654-36666. doi: 10.1039/d0ra07201j. eCollection 2020 Oct 1.
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A Review of Structural Adhesive Joints in Hybrid Joining Processes.
混合连接工艺中的结构胶接接头综述
Polymers (Basel). 2021 Nov 16;13(22):3961. doi: 10.3390/polym13223961.
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Aluminum anodizing waste and its uses: An overview of potential applications and market opportunities.铝阳极氧化废物及其用途：潜在应用和市场机会概述。
Waste Manag. 2019 Feb 1;84:286-301. doi: 10.1016/j.wasman.2018.12.003. Epub 2018 Dec 10.