01 December 2021 
Chinese researchers have developed a new type of double-layer polyimide nanocomposite film, which can be applied on the external surfaces of spacecraft and protect the hardware from adverse conditions of low Earth orbit. The researchers from the University of Science and Technology of China generated a new polyimide-based nanocomposite film with greatly enhanced mechanical properties and atomic oxygen resistance by integrating mica nanosheets with polyimide into a unique double-layer nacre-inspired structure with a much higher density, according to their recent research article published in the journal Advanced Materials.
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