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作 者:查文杰 李敏瑜 龚维熙 徐高楠 蒋坤 ZHA Wenjie;LI Minyu;GONG Weixi;XU Gaonan;JIANG Kun(CEPREI,Guangzhou 511370,China)
机构地区:[1]工业和信息化部电子第五研究所,广东广州511370
出 处:《电子产品可靠性与环境试验》2023年第5期59-64,共6页Electronic Product Reliability and Environmental Testing
摘 要:氟塑料常被应用于航天线缆中,但在空间辐射下,其会受到原子氧的剥蚀作用,国内外均开展了关于氟塑料在原子氧环境下侵蚀退化效应的相关研究。通过对PTFE、PFA、FEP、ETFE、X-ETFE 5种常用含氟航天线缆材料的耐原子氧性能进行考核,旨在验证这5类材料对航天原子氧环境的适应性,指导航天线缆选材。实验表明,经原子氧辐照后,5种氟塑料都存在表面粗糙度增加、质量损失增大等现象。原子氧对材料的剥蚀率存在不同,其中X-ETFE耐原子氧性能最好,PFA耐原子氧性能最弱。对于同种材料,随着剥蚀时间的增加,剥蚀率先呈下降趋势,并最终趋于稳定。Fluoroplastic are often used in aerospace cables,but under space radiation,they are subject to the stripping effect of atomic oxygen,and studied have been carried out at home and abroad on the erosion and degradation effects of fluoroplastic in the atomic oxygen environment.The atomic oxygen resistance of five commonly used fluorine-containing aerospace cable materials,namely,PTFE,PFA,FEP,ETFE and X-ETFE,is evaluated to verify the adaptability of these five materials in the aerospace atomic oxygen environment and to guide the selection of aerospace cables.The results show that the surface roughness and mass loss of five fluoroplastics increase after atomic oxygen irradiation.X-ETFE has the best resistance to atomic oxygen and PFA has the weakest resistance to atomic oxygen.For the same material,with the increase of denudation time,the denudation rate first decreases and finally stabilizes.
分 类 号:V255.3[一般工业技术—材料科学与工程]
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