Influence of moisture and salinity on property degradation of nano-engineered epoxy polymers for offshore applications

IF 2.3 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Journal of Reinforced Plastics and Composites Pub Date : 2024-04-18 DOI:10.1177/07316844241247897

B. S. Sindu, Saptarshi Sasmal

{"title":"Influence of moisture and salinity on property degradation of nano-engineered epoxy polymers for offshore applications","authors":"B. S. Sindu, Saptarshi Sasmal","doi":"10.1177/07316844241247897","DOIUrl":null,"url":null,"abstract":"This study has attempted to investigate the influence of major environmental degradation factors for offshore and coastal structures, such as moisture and salinity, on epoxy-based bonded composite systems and to identify the means of degradation of the same. Exhaustive experimental investigations have been carried out with different salinity levels (0%, 2.5% and 5%) and exposure periods (45 days to longer time periods (>1 year)) to determine the influence of the same on the mechanical property degradation of epoxy polymers. The effect of degraded properties on the performance degradation of bonded epoxy composite systems in terms of damage pattern and load-carrying capacity has been investigated using numerical simulations with non-linear material models and traction-separation interface behaviour. Further, it is also attempted to fundamentally engineer the epoxy polymers using nanosilica to improve their mechanical properties and environmental resistance. Finally, diffusion tests have been performed on the plain and nanoengineered epoxy polymers to understand the change in diffusion mechanisms due to nanoengineering, and a correlation has been established between the diffusion behaviour and the mechanical property degradation. The findings of this study will lead towards the development of stronger and more durable epoxy-bonded composite systems for marine applications.","PeriodicalId":16943,"journal":{"name":"Journal of Reinforced Plastics and Composites","volume":"38 1","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Reinforced Plastics and Composites","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1177/07316844241247897","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}

引用次数: 0

Abstract

This study has attempted to investigate the influence of major environmental degradation factors for offshore and coastal structures, such as moisture and salinity, on epoxy-based bonded composite systems and to identify the means of degradation of the same. Exhaustive experimental investigations have been carried out with different salinity levels (0%, 2.5% and 5%) and exposure periods (45 days to longer time periods (>1 year)) to determine the influence of the same on the mechanical property degradation of epoxy polymers. The effect of degraded properties on the performance degradation of bonded epoxy composite systems in terms of damage pattern and load-carrying capacity has been investigated using numerical simulations with non-linear material models and traction-separation interface behaviour. Further, it is also attempted to fundamentally engineer the epoxy polymers using nanosilica to improve their mechanical properties and environmental resistance. Finally, diffusion tests have been performed on the plain and nanoengineered epoxy polymers to understand the change in diffusion mechanisms due to nanoengineering, and a correlation has been established between the diffusion behaviour and the mechanical property degradation. The findings of this study will lead towards the development of stronger and more durable epoxy-bonded composite systems for marine applications.

查看原文本刊更多论文

湿度和盐度对用于近海应用的纳米工程环氧聚合物性能降解的影响

本研究试图调查近海和海岸结构的主要环境降解因素（如湿度和盐度）对环氧基粘结复合材料系统的影响，并确定其降解方式。在不同的盐度水平（0%、2.5% 和 5%）和暴露期（45 天到更长时间（1 年））下进行了详尽的实验研究，以确定这些因素对环氧聚合物机械性能降解的影响。利用非线性材料模型和牵引分离界面行为进行数值模拟，研究了性能退化对粘结环氧复合材料系统在损伤模式和承载能力方面性能退化的影响。此外，还尝试使用纳米二氧化硅对环氧聚合物进行基本工程设计，以改善其机械性能和耐环境性。最后，对普通环氧聚合物和纳米工程环氧聚合物进行了扩散测试，以了解纳米工程引起的扩散机制的变化，并建立了扩散行为与机械性能退化之间的相关性。这项研究的结果将有助于为海洋应用开发更坚固、更耐用的环氧树脂粘合复合材料系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Reinforced Plastics and Composites 工程技术-材料科学：复合

CiteScore

5.40

自引率

6.50%

发文量

审稿时长

1.3 months

期刊介绍： The Journal of Reinforced Plastics and Composites is a fully peer-reviewed international journal that publishes original research and review articles on a broad range of today''s reinforced plastics and composites including areas in: Constituent materials: matrix materials, reinforcements and coatings. Properties and performance: The results of testing, predictive models, and in-service evaluation of a wide range of materials are published, providing the reader with extensive properties data for reference. Analysis and design: Frequency reports on these subjects inform the reader of analytical techniques, design processes and the many design options available in materials composition. Processing and fabrication: There is increased interest among materials engineers in cost-effective processing. Applications: Reports on new materials R&D are often related to the service requirements of specific application areas, such as automotive, marine, construction and aviation. Reports on special topics are regularly included such as recycling, environmental effects, novel materials, computer-aided design, predictive modelling, and "smart" composite materials. "The articles in the Journal of Reinforced Plastics and Products are must reading for engineers in industry and for researchers working on leading edge problems" Professor Emeritus Stephen W Tsai National Sun Yat-sen University, Taiwan This journal is a member of the Committee on Publication Ethics (COPE).