Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions

Abstract Development of fifth‐generation technology leads to a growing demand for materials with exceptional thermal property, mechanical strength, and low dielectric loss. However, ensuring the broad application of such materials by comprehensively investigating their aging mechanisms and service l...

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Main Authors: Peijiang Liu, Yinle Li, Huanxiang Xu, Wanchun Tian, Zhenbo Zhao, Yao Liu, Hao Zhao, Zhaoning Sun, Jianyu Wu, Liguo Xu
Format: Article
Language:English
Published: Wiley-VCH 2024-03-01
Series:Macromolecular Materials and Engineering
Subjects:
Online Access:https://doi.org/10.1002/mame.202300301
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author Peijiang Liu
Yinle Li
Huanxiang Xu
Wanchun Tian
Zhenbo Zhao
Yao Liu
Hao Zhao
Zhaoning Sun
Jianyu Wu
Liguo Xu
author_facet Peijiang Liu
Yinle Li
Huanxiang Xu
Wanchun Tian
Zhenbo Zhao
Yao Liu
Hao Zhao
Zhaoning Sun
Jianyu Wu
Liguo Xu
author_sort Peijiang Liu
collection DOAJ
description Abstract Development of fifth‐generation technology leads to a growing demand for materials with exceptional thermal property, mechanical strength, and low dielectric loss. However, ensuring the broad application of such materials by comprehensively investigating their aging mechanisms and service lifetimes remains a challenge. In this work, we have developed a glass fiber (GF) reinforced liquid crystal polymer composite (GF/LCP) and conducted a thorough exploration of its aging mechanism, behavior, and service lifetime under thermal and oxidative conditions. On the basis of the general Arrhenius model, the composite maintains a high level of functionality for a remarkable 18 years at 150 °C and 1.5 years at 200 °C. Despite the extremely high thermal resistance of GF/LCP composite, the LCP matrix exhibits localized brittle fracture, and the main chains still undergo gradual degradation to generate phenolic groups, which ultimately leads to severe pulverization and mass loss. However, a high degree of connection maintenance between GF and LCP components is still reserved. This work provides a valuable reference for the reliable application of 5G materials under thermal and oxidative conditions.
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spelling doaj.art-06e3071d42434492bd85535d1eb39f222024-03-14T13:40:37ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542024-03-013093n/an/a10.1002/mame.202300301Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative ConditionsPeijiang Liu0Yinle Li1Huanxiang Xu2Wanchun Tian3Zhenbo Zhao4Yao Liu5Hao Zhao6Zhaoning Sun7Jianyu Wu8Liguo Xu9Reliability Physics and Application Technology of Electronic Component Key Laboratory the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaReliability Research and Analysis Centre the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaReliability Research and Analysis Centre the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaZhuhai Vanteque Specialty Engineering Plastics Co. Ltd. Zhuhai 519050 ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory the fifth Electronics Research Institute of the Ministry of Information Industry Guangzhou 510610 ChinaCollege of Light Chemical Industry and Materials Engineering Shunde Polytechnic Foshan 528333 ChinaAbstract Development of fifth‐generation technology leads to a growing demand for materials with exceptional thermal property, mechanical strength, and low dielectric loss. However, ensuring the broad application of such materials by comprehensively investigating their aging mechanisms and service lifetimes remains a challenge. In this work, we have developed a glass fiber (GF) reinforced liquid crystal polymer composite (GF/LCP) and conducted a thorough exploration of its aging mechanism, behavior, and service lifetime under thermal and oxidative conditions. On the basis of the general Arrhenius model, the composite maintains a high level of functionality for a remarkable 18 years at 150 °C and 1.5 years at 200 °C. Despite the extremely high thermal resistance of GF/LCP composite, the LCP matrix exhibits localized brittle fracture, and the main chains still undergo gradual degradation to generate phenolic groups, which ultimately leads to severe pulverization and mass loss. However, a high degree of connection maintenance between GF and LCP components is still reserved. This work provides a valuable reference for the reliable application of 5G materials under thermal and oxidative conditions.https://doi.org/10.1002/mame.2023003015G materialsaging mechanismslifetime predictionliquid crystal polymersthermal and oxidative conditions
spellingShingle Peijiang Liu
Yinle Li
Huanxiang Xu
Wanchun Tian
Zhenbo Zhao
Yao Liu
Hao Zhao
Zhaoning Sun
Jianyu Wu
Liguo Xu
Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions
Macromolecular Materials and Engineering
5G materials
aging mechanisms
lifetime prediction
liquid crystal polymers
thermal and oxidative conditions
title Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions
title_full Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions
title_fullStr Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions
title_full_unstemmed Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions
title_short Aging Mechanism and Lifetime Prediction of Glass Fiber Reinforced Liquid Crystal Polymer Composite under Thermal and Oxidative Conditions
title_sort aging mechanism and lifetime prediction of glass fiber reinforced liquid crystal polymer composite under thermal and oxidative conditions
topic 5G materials
aging mechanisms
lifetime prediction
liquid crystal polymers
thermal and oxidative conditions
url https://doi.org/10.1002/mame.202300301
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