An INNOVative Approach for Mechanical Characterization of Coatings on Fibres

IF 2 3区工程技术 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Experimental Mechanics Pub Date : 2024-10-03 DOI:10.1007/s11340-024-01117-2

M. Benzarti, P. Henry

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Abstract

Background

Varnish is used in many domains to enhance wear resistance, mechanical behaviour or chemical resistance. To characterize varnish cohesion or adhesion on plane surface, a scratch-test is predominantly used. In order to investigate coating properties on fibres, the common method uses tensile tests.

Objective

The aim of this paper was to investigate the adhesion of varnish on a monofibre of polyamide using an out of the box procedure based on scratch tests. To do so, a specific device was conceived to enable a scratch test on a single fibre.

Methods

Adhesion between varnish and a monofibre of nylon was investigated using several series of scratch tests on fibres coated by two types of varnish. Coating toughness and adhesion were investigated according to the coating composition and thermal treatment. A comparison between the different prints was discussed to characterize the effect of varnish type on the scratch resistance and to determine the parameters that influence this adhesion using scratch-test.

Results

The obtained results highlighted the influence of the thermal treatment imposed to the fibres on the mechanical behaviour. Tensile tests were conducted on the three types of samples in order to establish a link in terms of classification between a well-known characterization experiment and the presented scratch test.

Conclusion

Beyond the investigation of varnish/nylon fibre adhesion, this paper mostly aims at validating an innovative process for the characterization of coatings deposited on curved surfaces like fibres.

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一种纤维涂层力学表征的创新方法

背景漆用于许多领域，以提高耐磨性，机械性能或耐化学性。为了测定清漆在平面上的内聚性或附着力，主要采用划痕试验。为了研究纤维的涂层性能，常用的方法是使用拉伸试验。目的采用基于划痕试验的开箱即用方法研究清漆在聚酰胺单纤维上的附着力。为此，设计了一种特殊的设备来对单个纤维进行划痕测试。方法通过对涂有两种清漆的纤维进行一系列划痕试验，研究了清漆与尼龙单纤维的粘附性。根据涂层成分和热处理工艺，研究了涂层的韧性和附着力。通过对不同印版的比较，探讨了漆型对耐刮擦性能的影响，并通过刮擦试验确定了影响这种附着力的参数。结果得到的结果突出了热处理对纤维力学行为的影响。为了在众所周知的表征实验和本文提出的划痕试验之间建立分类联系，对三种类型的样品进行了拉伸试验。除了对清漆/尼龙纤维粘附性的研究之外，本文主要旨在验证一种创新的工艺，用于表征沉积在纤维等曲面上的涂层。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Experimental Mechanics 物理-材料科学：表征与测试

CiteScore

4.40

自引率

16.70%

发文量

111

审稿时长

3 months

期刊介绍： Experimental Mechanics is the official journal of the Society for Experimental Mechanics that publishes papers in all areas of experimentation including its theoretical and computational analysis. The journal covers research in design and implementation of novel or improved experiments to characterize materials, structures and systems. Articles extending the frontiers of experimental mechanics at large and small scales are particularly welcome. Coverage extends from research in solid and fluids mechanics to fields at the intersection of disciplines including physics, chemistry and biology. Development of new devices and technologies for metrology applications in a wide range of industrial sectors (e.g., manufacturing, high-performance materials, aerospace, information technology, medicine, energy and environmental technologies) is also covered.