文献类型：期刊文献

英文题名：Influence of Long-Term Thermo-Oxidative Treatment on the Properties of Carbon Fiber/Polycarbonate Thermoplastic Composites

作者：Ren, Tianxiang[1,2,3,4,5,6];Ma, Huan[7,8];Zhan, Yingtao[9];Xu, Yudong[6];Zhan, Haihua[1,2,3,4,5];Zhang, Kun[1,2,3,4,5];Chen, Lifeng[10];Shen, Wei[10];Ouyang, Yiwei[11];Xu, Fujun[7,8];Zhao, Defang[1,2,3,4,5,12,13];Shao, Yuanyi[7,8];Zhang, Xiaolin[14]

机构：[1]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing, Peoples R China;[2]Shaoxing Univ, Zhejiang Sub Ctr, Natl Carbon Fiber Engn Technol Res Ctr, Shaoxing, Peoples R China;[3]Shaoxing Univ, Natl Engn Res Ctr Fiber Based Composites, Shaoxing Sub Ctr, Shaoxing, Peoples R China;[4]Shaoxing Univ, Shaoxing Key Lab High Performance Fibers & Prod, Shaoxing, Peoples R China;[5]Shaoxing Univ, Sch Text Sci & Engn, Shaoxing, Peoples R China;[6]Modern Text Technol Innovat Ctr, Jianhu Lab, Shaoxing, Peoples R China;[7]Donghua Univ, Key Lab Text Sci & Technol, Minist Educ, Shanghai, Peoples R China;[8]Donghua Univ, Coll Text, Shanghai, Peoples R China;[9]CTA High Tech Fiber Co Ltd, Shaoxing, Peoples R China;[10]Shaoxing Baojing Composite Mat Co Ltd, Shaoxing, Peoples R China;[11]Wuhan Text Univ, Sch Text Sci & Engn, State Key Lab New Text Mat & Adv Proc, Wuhan, Peoples R China;[12]Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou, Peoples R China;[13]Hailiang Grp Co Ltd, Hangzhou, Peoples R China;[14]Xian Polytech Univ, Sch Text Sci & Engn, Key Lab Funct Text Mat & Prod, Minist Educ, Xian, Peoples R China

年份：2025

外文期刊名：POLYMER COMPOSITES

收录：SCI-EXPANDED(收录号：WOS:001491431200001)、、EI(收录号：20252118477753)、Scopus(收录号：2-s2.0-105005801079)、WOS

基金：This work was supported by Shaoxing Industrial Key Technology Research Plan Project. "Pioneer" and "Leading Goose" R&D Program of Zhejiang. Zhejiang Province Basic Public Welfare Research Project.

语种：英文

外文关键词：aging mechanisms; CF/PC laminates; long-term durability; mechanical property reduction; thermo-oxidative aging

外文摘要：The effect of the thermo-oxidative environment on the properties of carbon fiber/polycarbonate thermoplastic composites was investigated in this research. The degradation of performance properties and reduced durability are key concerns for carbon fiber thermoplastic composites under challenging and varying environmental conditions, especially in thermo-oxidative environments. This study focuses on the flexural and thermal properties of carbon fiber reinforced polycarbonate composites (CF/PC). The CF/PC composites were subjected to two distinct temperatures (100 degrees C and 180 degrees C) for extended periods. Negligible weight change was observed at 100 degrees C, whereas 180 degrees C led to continuous loss over time. The deterioration of mechanical performance was assessed through continuous monitoring of changes in flexural modulus and strength throughout the thermo-oxidative treatment period. At 180 degrees C, flexural strength dropped sharply, retaining just 12.7% and 5.9% after 2160 and 2640 h; in contrast, changes at 100 degrees C were slight. This difference is likely due to the gradual degradation of the PC matrix and failure at the interface. In terms of thermal performance, the unaged material exhibited a weight loss percentage of 23.08%. At an aging temperature of 100 degrees C, the thermal stability of the material remained virtually unchanged. However, at 180 degrees C, both the initial decomposition temperature and the temperature corresponding to the maximum weight loss rate progressively decreased. This significant reduction in thermal stability was primarily attributed to the cleavage of ester bonds and the detachment of terminal groups within the PC molecular chains.