Assessment of Mechanical Degradation in Polyester Fibers for Offshore Mooring through Hydrolysis Processes in Seawater

Q3 Materials Science Macromolecular Symposia Pub Date : 2024-12-16 DOI:10.1002/masy.202400097

Daniel Magalhães da Cruz, Ignacio Melito, Aleones José da Cruz Júnior, Ivan Napoleão Bastos, Ana Lúcia Nazareth da Silva, Jakson Manfredini Vassoler, Fernanda Mazuco Clain, Carlos Eduardo Marcos Guilherme

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引用次数: 0

Abstract

For decades, polyethylene terephthalate (PET) has been a prominent material for high-performance polymer fibers, finding widespread applications in offshore mooring. PET offers cost-effectiveness, high strength, ease of processing, compatibility with other fibers, and recyclability. This article presents the depolymerization of PET for material aging via hydrolysis conducted with seawater (South Atlantic) at three different elevated temperatures, with hydrolysis time of up to 100 days. Three PET fibers with different linear densities are used, and the experimental investigation involves measuring the breaking strength through yarn break load (YBL) tests to evaluate the effect of hydrolysis conditions (time, temperature) on the mechanical behavior of the multifilaments. A constant reduction in strength is observed for all PETs due to hydrolysis time. However, within the studied temperature range, the maximum strength loss is not always associated with the highest temperature. Additionally, several models are used to fit the effects of hydrolysis exposure time and temperature on yarn strength, providing both 2D and 3D models that describe the phenomenon.

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来源期刊

Macromolecular Symposia Materials Science-Polymers and Plastics

CiteScore

1.50

自引率

0.00%

发文量

226

期刊介绍： Macromolecular Symposia presents state-of-the-art research articles in the field of macromolecular chemistry and physics. All submitted contributions are peer-reviewed to ensure a high quality of published manuscripts. Accepted articles will be typeset and published as a hardcover edition together with online publication at Wiley InterScience, thereby guaranteeing an immediate international dissemination.