Atomic oxygen resistant coatings on Kapton

Ritchie, Ian; Gjerde, Helen B.

doi:10.1016/s0257-8972(89)80021-0

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…Therefore, researching anti-AO protection methods for PI substrates is of the utmost importance. Currently, the primary method to enhance PI’s anti-AO erosion performance involves applying a protective coating − containing both organic and inorganic coatings. Inorganic coatings typically comprise substances such as graphene (Gr), − SiO 2, and other materials with low AO erosion yield.…”

Section: Introductionmentioning

confidence: 99%

Reactive Molecular Dynamics Study of the Mechanism and Effect of Various Protective Coatings on the Protection of Polyimide Antierosion from Atomic Oxygen

Wei,

Zeng,

Cui

2024

J. Phys. Chem. A

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Polyimide (PI), due to its exceptional performance, is commonly utilized in spacecraft. However, when such polymers are used in spacecraft navigating low Earth orbit, they are exposed to atomic oxygen (AO) that can cause the polymer to decompose. A protective coating method is a more effective way to safeguard the polymer from erosion caused by AO. This study employs the molecular dynamics simulation based on the reaction force field to investigate the protective effects of various coatings, including polydimethylsiloxane (PDMS), graphene (Gr), polytetrafluoroethylene (PTFE), and the (0 0 1), (0 1 1), and (1 1 1) surfaces of SiO 2 . The results indicate that the protective performance of the (0 1 1) surface is superior to that of the (0 0 1) and (1 1 1) surfaces. Moreover, protective coatings are classified into three categories based on different protective mechanisms: rebound, absorption, and sacrificial. The protective effectiveness of coatings depends on their anti-AO performance and ability to combine with the substrate. Gr displays exceptional anti-AO properties and can effectively shield the substrate from AO erosion. Silicone-based coatings have a superior ability to adhere to PI substrates, and PDMS is an excellent choice for protective coatings. This paper offers guidance for the protective coating method of PIs against AO erosion.

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Section: Introductionmentioning

confidence: 99%

Reactive Molecular Dynamics Study of the Mechanism and Effect of Various Protective Coatings on the Protection of Polyimide Antierosion from Atomic Oxygen

Wei,

Zeng,

Cui

2024

J. Phys. Chem. A

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“…2 This necessitates the use of protective films against AO attack in LEO environment of both shuttle and space station. The incident flux of atomic oxygen ͑AO͒ for normal and solar facing surfaces causes oxidation leading to breakup of bonds within its backbone, formation of volatile low molecular weight fragments, and evolution of CO and CO 2 presumably from imide ring decomposition, with subsequent erosion yield of ϳ3 ϫ 10 −24 cm 3 / atom.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of Al2O3 and SiO2 films with fluoropolymer content using rf-plasma magnetron sputtering technique

Islam

Inal

2008

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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Articles you may be interested inCarbon film deposition on SnO 2 / Si (111) using DC unbalanced magnetron sputtering AIP Conf. Proc. 1554, 93 (2013); 10.1063/1.4820292Correlation of structure and hardness of rf magnetron sputtered silicon carbonitride films Growth dynamics and characterization of SiC quantum dots synthesized by low-frequency inductively coupled plasma assisted rf magnetron sputtering Synthesis and characterization of inorganic silicon oxycarbide glass thin films by reactive rf-magnetron sputtering Pure and molecularly mixed inorganic films for protection against atomic oxygen in lower earth orbit were prepared using radio-frequency ͑rf͒ plasma magnetron sputtering technique. Alumina ͑Al 2 O 3 ͒ and silica ͑SiO 2 ͒ films with average grain size in the range of 30-80 nm and fully dense or dense columnar structure were synthesized under different conditions of pressure and power. Simultaneous oxide sputtering and plasma polymerization ͑PP͒ of hexafluoropropylene ͑HFP͒ led to the formation of molecularly mixed films with fluoropolymer content. The degree of plasma polymerization was strongly influenced by total chamber pressure and the argon to HFP molar ratio ͑n Ar / n M ͒. An order of magnitude increase in pressure due to argon during codeposition changed the plasma-polymerization mechanism from radical-chain-to radical-radical-type processes. Subsequently, a shift from linear CH 2 group based chain polymerization to highly disordered fluoropolymer content with branching and cross-linking was observed. Fourier transform infrared spectroscopy studies revealed chemical interaction between depositing SiO 2 and PP-HFP through appearance of absorption bands characteristic of Siu F stretching and expansion of SiO 2 network. The relative amount and composition of plasma-polymerized fluoropolymer in such films can be controlled by changing argon to HFP flow ratio, total chamber pressure, and applied power. These films offer great potential for use as protective coatings in aerospace applications.

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Coatings and Thin Films for Spacecraft Thermo‐Optical and Related Functional Applications

Hołyńska

Tighe

Semprimoschnig

2018

Adv Materials Inter

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An overview of coatings and thin films for spacecraft applications is provided, focusing on coatings for thermal control and optical applications. An outline of the requirements imposed by the harsh conditions in space is given. Space applications of coatings are listed and their qualification is described, including testing in the ESA laboratories at ESTEC. Coatings degradation in space and environmental testing, including degradation due to vacuum, thermal cycling, radiation, atomic oxygen, space debris, and outgassing effects, is covered in detail. Recent advances in the field and perspectives for future development are also reviewed based on the published literature.

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Atomic oxygen resistant coatings on Kapton

Cited by 9 publications

References 2 publications

Reactive Molecular Dynamics Study of the Mechanism and Effect of Various Protective Coatings on the Protection of Polyimide Antierosion from Atomic Oxygen

Reactive Molecular Dynamics Study of the Mechanism and Effect of Various Protective Coatings on the Protection of Polyimide Antierosion from Atomic Oxygen

Synthesis and characterization of Al2O3 and SiO2 films with fluoropolymer content using rf-plasma magnetron sputtering technique

Coatings and Thin Films for Spacecraft Thermo‐Optical and Related Functional Applications

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