化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (4) : 176-179. DOI: 10.19817/j.cnki.issn1006-3536.2022.04.035

科学研究

多面体低聚倍半硅氧烷改性环氧树脂耐原子氧性能研究

张宇, 孙煜

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Study on atomic oxygen resistance of EP resin modified by POSS

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Received		Published
2020-12-01		2022-04-20
Issue Date	Revised Date
2022-04-29	2020-12-01

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摘要

采用不同含量的多面体低聚倍半硅氧烷(POSS)掺杂改性环氧树脂,得到有机-无机杂化的环氧树脂体系,考察了3种不同试样在累积原子氧通量为3.39×10²⁰atoms/cm²条件下的质量损失和剥蚀率,其中质量分数5%的POSS改性环氧树脂试样的质量损失和剥蚀率均最低,分别为6.55×10^-3g/cm³和3.86×10^-24cm³/atoms。采用扫描电子显微镜表征了原子氧辐照试验后试样的表面形貌,采用X射线光电子能谱仪分析了试验前后试样的表面元素组成及含量,发现POSS的加入可使材料表面生成具有防原子氧作用的SiO₂。

Abstract

The organic-inorganic hybrid epoxy(EP) resin systems were prepared by doping different contents of polyhedral oligomeric silsesquioxane(POSS),and compared their mass losses and erosion yields at the atomic oxygen flux level of 3.39×10²⁰atoms/cm².The mass loss and erosion yield of 5wt% POSS resin were the lowest,which were 6.55×10^-3g/cm³ and 3.86×10^-24cm³/atoms respectively.The surface morphology of the samples was characterized by scanning electron microscopy (SEM),and analysed the surface element composition and content of the samples before and after the test by X-ray photoelectron spectroscopy (XPS).It was found that POSS can produce SiO₂ protection layer to resin under atomic oxygen atmosphere.

关键词

多面体低聚倍半硅氧烷 / 环氧树脂 / 耐原子氧性能

Key words

polyhedral oligomeric silsesquioxane / epoxy resin / atomic oxygen resistance

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张宇, 孙煜. 多面体低聚倍半硅氧烷改性环氧树脂耐原子氧性能研究[J]. 化工新型材料, 2022, 50(4): 176-179 DOI:10.19817/j.cnki.issn1006-3536.2022.04.035

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参考文献

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