Protection of Kapton from Atomic-Oxygen Erosion Using a Polysilazane Coating

Abstract

The polysilazane synthesized by aminolysis of dichloromethylviny was coated on kapton by dip-coating method, the AO exposure tests was carried out in a ground-based AO simulator. It is found that the erosion yield of kapton was decreases by about two orders of magnitude. After exposure the coated katpon still have a smooth surface, and its optical properties are still at a high level. The polysilazane coating exhibits a superior AO erosion resistance.

The Atomic Oxygen Erosion Resistance Effect and Mechanism of the Perhydropolysilazane-Derived SiOx Coating Used on Polymeric Materials in Space Environment

“…Initially, an organic coating was deployed, such as polysiloxane, polysilazane, and fluorinated polymers. The organic coatings usually bond to the polymer material surface firmly and have better flexibility, However, when exposed to UV radiation in the LEO environment, they are prone to aging [15][16][17]. Then, the inorganic coating was applied.…”

Synthesis of PI/POSS nanocomposite films based on track nuclear membranes and assessment of their resistance to oxygen plasma flow

“…Chunbo et al [15] found that silver plating of polyimide films, as well as their surface modification by poly (siloxane amic acid) ammonium salts, leads to a several-fold decrease in weight loss after treatment with atomic oxygen. In another work by Liu et al [16], a polysilazane synthesized by aminolysis of a dichloromethylviny coating was used to protect the Kapton brand PI. It was found that the erosion yield of the Kapton was decreased by about two orders of magnitude.…”