Effectiveness of Bonding Steel Elements with Polyester-Coated Paint

IF 2.5 4区综合性期刊 Q2 CHEMISTRY, MULTIDISCIPLINARY Applied Sciences-Basel Pub Date : 2023-09-06 DOI:10.3390/app131810059

A. Rudawská, Arkadiusz Gola, J. Pizoń, Paweł Capała, Łukasz Wójcik

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Abstract

The aim of the paper is to assess the impact of the effectiveness of bonding steel elements with paint coating. The adhesive joints were made using two types of the adhesives: two-component epoxy resin adhesive based on Bisphenol A and polyurethane. Three types of adhesive joints were made: (i) reference samples, (ii) samples with a paint polyester coating, and (iii) samples with a zinc primer and paint polyester coating. These coatings were applied using the electrokinetic method. A shear strength test of the adhesive joints (EN DIN 1465 standard), a coating adhesion test (ASTM D3359-B standard), and surface wettability tests (based on contact angle) were used. Through analyzing the test results, it can be seen that the strength of the adhesive joints of the reference samples made with epoxy adhesive is 46% lower than that of the specimens with primer and paint coating applied. However, in the case of the adhesive joints made with the polyurethane adhesive, the aforementioned difference in the strength value of the adhesive joints of the reference samples and paint-coated samples with an applied primer is 76%. Adherends with a paint coating and a previously applied primer obtained the lowest value of the contact angle (38.72°) and are characterized by good wettability.

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钢构件与聚酯涂层涂料结合的有效性

本文的目的是评估用油漆涂层粘合钢元件的有效性的影响。采用双酚A双组分环氧树脂胶粘剂和聚氨酯胶粘剂两种胶粘剂制作了粘接接头。制作了三种类型的粘合接头：（i）参考样品，（ii）具有涂料聚酯涂层的样品，以及（iii）具有锌底漆和涂料聚酯涂层。这些涂层是使用电动方法涂覆的。使用粘合接头的剪切强度测试（EN DIN 1465标准）、涂层附着力测试（ASTM D3359-B标准）和表面润湿性测试（基于接触角）。通过对试验结果的分析可以看出，使用环氧胶粘剂制成的参考样品的粘接接头强度比使用底漆和油漆涂层的样品低46%。然而，在用聚氨酯粘合剂制成的粘合接头的情况下，参考样品和涂有底漆的涂料样品的粘合接头强度值的上述差异为76%。具有油漆涂层和先前涂覆的底漆的粘附物获得了最低的接触角值（38.72°），并且具有良好的润湿性。

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来源期刊

Applied Sciences-Basel CHEMISTRY, MULTIDISCIPLINARYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.30

自引率

11.10%

发文量

10882

期刊介绍： Applied Sciences (ISSN 2076-3417) provides an advanced forum on all aspects of applied natural sciences. It publishes reviews, research papers and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.