辐射诱导交联对飞机电缆材料用乙烯-四氟乙烯热老化性能的影响

Effect of Radiation-Induced Cross-Linking on Thermal Aging Properties of Ethylene-Tetrafluoroethylene for Aircraft Cable Materials.

作者信息

Zhang Xiaodong, Chen Fei, Su Zhimin, Xie Taiping

机构信息

School of Materials Science and Engineering, Yangtze Normal University, Chongqing 408100, China.

Department of Chemical Engineering and Safety, BinZhou University, Binzhou 256603, Shandong, China.

出版信息

Materials (Basel). 2021 Jan 7;14(2):257. doi: 10.3390/ma14020257.

DOI:10.3390/ma14020257

PMID:33430252

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7825732/

Abstract

The effects of electron beam irradiation on ethylene-tetrafluoroethylene copolymer (ETFE) were studied. Samples were irradiated in air at room temperature by a universal electron beam accelerator for various doses. The effect of irradiation on samples and the cross-linked ETFE after aging were investigated with respect to thermal characteristics, crystallinity, mechanical properties, and volume resistivity using thermo-gravimetric analysis (TGA), differential scanning calorimeter (DSC), universal mechanical tester, and high resistance meter. TGA showed that thermal stability of irradiated ETFE is considerably lower than that of unirradiated ETFE. DSC indicates that crystallinity is altered greatly by cross-link. The analysis of mechanical properties, fracture surface morphology, visco-elastic properties and volume resistivity certify radiation-induced cross-linking is vital to aging properties.

摘要

研究了电子束辐照对乙烯-四氟乙烯共聚物（ETFE）的影响。使用通用电子束加速器在室温下于空气中对样品进行不同剂量的辐照。利用热重分析（TGA）、差示扫描量热仪（DSC）、万能材料试验机和高阻计，研究了辐照对样品以及老化后的交联ETFE在热特性、结晶度、力学性能和体积电阻率方面的影响。TGA表明，辐照后的ETFE热稳定性明显低于未辐照的ETFE。DSC表明，交联会使结晶度发生很大变化。对力学性能、断裂表面形态、粘弹性性能和体积电阻率的分析证明，辐射诱导交联对老化性能至关重要。