Property of Protection against Simultaneous Action between Atomic Oxygen Erosion and Ultraviolet Irradiation by MIL-53(Al) Coating.

Rapid development of coatings with resistance to the space irradiation environment of low Earth orbit (LEO), which benefits long-duration exploration missions in LEO, improves the challenging urgency of revealing the interaction between atomic oxygen (AO) erosion and ultraviolet (UV) irradiation. Here, we investigated the simultaneous action of AO erosion and UV irradiation using polyimide (PI) and MIL-53(Al)-coated PI, confirming a synergistic enhancement effect of 21.20 and 14.

Large Adsorption Capacity for Space Molecular Pollutants Realized by a Metal-Organic Framework.

The rapid development of capable spacecraft coatings for removing volatile organic compounds (VOCs) demands materials with a large adsorption capacity to ensure a long-duration exploration mission in a low Earth orbit (LEO). MIL-53(Al) with abundant sites exhibits resistance to the space environment in the LEO and shows great potential for VOC removal. This study combined an adsorption experiment and first-principles simulations to investigate the adsorption performance of MIL-53(Al).

An Apparatus for Spectral Emissivity Measurements of Thermal Control Materials at Low Temperatures.

Thermal control materials are employed to adjust the temperature of a spacecraft operating in deep space. The spectral emissivity is a crucial factor in evaluating the thermal radiative properties of such materials. An apparatus, composed of a Fourier transform infrared spectrometer (FTIR), a sample cooling chamber and a mechanical modulation system was demonstrated to measure low temperature infrared spectral emissivity under vacuum.