Andropova Ulyana S, Aysin Rinat R, Serenko Olga A, Ershova Tatyana O, Anisimov Anton A, Chernik Vladimir N
A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia.
D. V. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
Polymers (Basel). 2023 Aug 4;15(15):3299. doi: 10.3390/polym15153299.
In order to expand the range of materials that can be used in outer space and in development of small spacecraft, ladder polyphenylsilsesquioxanes with different molar weights and the Nb-siloxane composites based on them were studied. The properties of the polymer films were studied, including tests in an oxygen plasma flow. Both initial and filled ladder polymers feature extremely low erosion coefficients in the region of 10 cm/atom O at a high fluence of atomic oxygen of 1.0 × 10 atom O/cm. Ladder polyphenylsilsesquioxane films irradiated with atomic oxygen (AO) retain their integrity, do not crack, and exhibit good optical properties, in particular, a high transmittance. The latter slightly decreases during AO exposure. The Nb-siloxane filling retains the AO resistance and slight decrease in optical transmission due to diffuse scattering on the formed Nb-[(SiO)] nanoparticles. Ladder polyphenylsilsesquioxanes demonstrate their suitability for creating protective, optically transparent coatings for small spacecraft that are resistant to the erosive effects of incoming oxygen plasma.
为了扩大可用于外层空间的材料范围以及小型航天器的开发，研究了不同摩尔质量的梯形聚倍半硅氧烷及其基于它们的铌 - 硅氧烷复合材料。研究了聚合物薄膜的性能，包括在氧等离子体流中的测试。在原子氧通量为 1.0×10 原子氧/cm²的高剂量下，初始和填充的梯形聚合物在 10⁻⁶ cm/原子氧区域均具有极低的侵蚀系数。用原子氧（AO）辐照的梯形聚倍半硅氧烷薄膜保持其完整性，不破裂，并表现出良好的光学性能，特别是高透光率。在 AO 暴露期间，透光率略有下降。铌 - 硅氧烷填充物由于在形成的 Nb - [(SiO)]纳米颗粒上的漫散射而保持抗 AO 性能和光学透射率的轻微下降。梯形聚倍半硅氧烷证明了它们适用于为小型航天器制造抗入射氧等离子体侵蚀作用的保护性光学透明涂层。
