Reliability modeling to predict in‐service weatherability of polyurethane nanocomposite coatings: Approach, comparison and validation

IF 3.2 4区工程技术 Q2 ENGINEERING, CHEMICAL

Polymer Engineering and Science Pub Date : 2024-07-10 DOI:10.1002/pen.26868

Upashana Chatterjee, Shantanu Patra, Bhupendra S. Butola, Mangala Joshi

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引用次数: 0

Abstract

This article addresses the challenge of comparing in‐service weatherability among newly developed coatings. The study aims to compare the durability of three thermoplastic polyurethane‐based coatings specifically formulated for defense inflatables. It introduces a reliability model that incorporates two weathering stresses, namely, ultra‐violet radiation and temperature, to predict the service life of the coatings. A life–stress relationship has been established from the accelerated aging tests, which facilitates the determination of material service life at use level conditions. Notably, the analysis underscores the significant improvement in service lifetime achieved with nanocomposite‐based coatings. The validity of the proposed model is established through comparison with real‐world field test data, emphasizing the effectiveness of the approach in assessing and comparing the performance of the three coated samples. The insights gained from this research will surely contribute to enhancing the durability assessment of coated systems in real‐world conditions for various fields of applications.Highlights

Introduces a unique method to compare weatherability of three polyurethane coatings.

Reliability model predicts service life under UV and temperature stresses.

Life–stress relationship via accelerated aging for accurate service life.

Nanocomposite coatings show longer service life than conventional ones.

Model validated with field data, confirming practical applicability.

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通过可靠性建模预测聚氨酯纳米复合涂层的在役耐候性：方法、比较和验证

本文探讨了比较新开发涂料在使用中的耐候性这一难题。研究旨在比较三种热塑性聚氨酯涂料的耐久性，这三种涂料是专门为国防充气艇配制的。研究引入了一个可靠性模型，该模型结合了两种老化应力，即紫外线辐射和温度，来预测涂层的使用寿命。加速老化试验建立了寿命应力关系，有助于确定材料在使用水平条件下的使用寿命。值得注意的是，分析结果表明，纳米复合材料涂层的使用寿命显著提高。通过与实际现场测试数据的比较，确定了所建议模型的有效性，强调了该方法在评估和比较三种涂层样品性能方面的有效性。从这项研究中获得的启示必将有助于提高涂层系统在实际条件下的耐久性评估，从而应用于各个领域。亮点介绍了一种比较三种聚氨酯涂层耐候性的独特方法。可靠性模型可预测紫外线和温度应力下的使用寿命。通过加速老化分析生命应力关系，以获得准确的使用寿命。纳米复合涂层的使用寿命比传统涂层更长。模型经现场数据验证，确认了实际适用性。

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

Polymer Engineering and Science 工程技术-高分子科学

CiteScore

5.40

自引率

18.80%

发文量

329

审稿时长

3.7 months

期刊介绍： For more than 30 years, Polymer Engineering & Science has been one of the most highly regarded journals in the field, serving as a forum for authors of treatises on the cutting edge of polymer science and technology. The importance of PE&S is underscored by the frequent rate at which its articles are cited, especially by other publications - literally thousand of times a year. Engineers, researchers, technicians, and academicians worldwide are looking to PE&S for the valuable information they need. There are special issues compiled by distinguished guest editors. These contain proceedings of symposia on such diverse topics as polyblends, mechanics of plastics and polymer welding.