Atomic oxygen erosion resistance of polyimides filled hybrid nanoparticles

Andropova, U. S.; Серенко, О. А.; Tebeneva, N. A.; Tarasenkov, А. N.; Бузин, М. И.; Afanasyev, E. S.; Sapozhnikov, D. A.; Bukalov, Sergey S.; Leites, L.S.; Aysin, Rinat R.; Polezhaev, Alexander V.; Naumkin, A. V.; Novikov, L. S.; Chernik, V. N.; Воронина, Е. Н.; Muzafarov, А. М.

doi:10.1016/j.polymertesting.2020.106404

Cited by 22 publications

(16 citation statements)

References 43 publications

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“…Previously, it was shown that no chemical interactions occur between the PI and fillers based on Al-, Zr- or Nb-MDES and no hydrogen bonds are formed [ 42 ]. In the present work, the similar research technique was used for testing the films involving PI-Fe-MDES and PI-Cr-MDES.…”

Section: Resultsmentioning

confidence: 99%

“…According to the results described in [ 42 ], the effect of the type of BFMSO used on AO erosion resistance of PI based nanocomposites is notable when the content of this precursor is more than 3 wt.%. In the present work, films obtained using 14 wt.% BFMSO were irradiated with AO.…”

Section: Resultsmentioning

confidence: 99%

“…Filled polymer films were prepared according to known method [ 42 ]. A detailed description of the preparation of filled films, andcompositions of films, are provided in supporting information .…”

Section: Methodsmentioning

confidence: 99%

“…BFMSOs have the general formula M[O-Si(R′)(OR″) 2 ] n , where R′ and R″ are hydrocarbon substituents [ 40 ]. BFMSOs can be used with organosoluble PI to obtain coatings or films filled in situ under the same conditions by employing the “one step” technique because imidization of the polyamide acid/filler mixture is not required, and a high humidity is not required when introducing the catalyst into the reaction volume during the in situ polymer filling [ 41 , 42 ]. Furthermore, the particles formed in the polymer have a hybrid chemical structure and contain M–O–Si–O–Si bonds [ 42 ].…”

Section: Introductionmentioning

confidence: 99%

“…BFMSOs can be used with organosoluble PI to obtain coatings or films filled in situ under the same conditions by employing the “one step” technique because imidization of the polyamide acid/filler mixture is not required, and a high humidity is not required when introducing the catalyst into the reaction volume during the in situ polymer filling [ 41 , 42 ]. Furthermore, the particles formed in the polymer have a hybrid chemical structure and contain M–O–Si–O–Si bonds [ 42 ]. Therefore, using BFMSOs with different types of central metal atoms can allow the adjustment of the elemental composition of the inert protective layer.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the Composition of the Hybrid Filler on the Atomic Oxygen Erosion Resistance of Polyimide Nanocomposites

et al. 2020

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The structure and properties of nanocomposites based on organosoluble polyimide (PI) and branched functional metallosiloxane oligomers with different types of central metal atoms (Al, Cr, Fe, Zr, Hf and Nb) were investigated. Under the same weight content of the filler, the geometric parameters of the nanoparticles and thermal properties of the nanocomposites did not exhibit a direct relationship with the ability of the materials to withstand the incident flow of oxygen plasma. The atomic oxygenerosion resistance of the filled PI films was influenced by the composition of the hybrid fillerand the type of metal atom in the hybrid filler in the base metallosiloxane oligomer. To determine the effectiveness of the nanoparticles as protective elements of the polymer surface, the nanocomposite erosion yields pertaining to the concentration of the crosslinked organo–inorganic polymer forming the dispersed phase were determined and expressed in mmol per gram PI. The filler concentration in the polymer, expressed in these units, allows for comparison of the efficiency of different nanosize fillers for use in fabricating space survivable coatings. This can be important in the pursuit of new precursors, fillers for fabricating space survivable polymer composites.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of the Composition of the Hybrid Filler on the Atomic Oxygen Erosion Resistance of Polyimide Nanocomposites

et al. 2020

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Monitoring the curing processes of epoxy oligomers with partially substituted polyethoxymetallosiloxanes by IR spectroscopy and thermomechanical analysis

Parshina

Tarasenkov

Aysin

et al. 2021

J of Applied Polymer Sci

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In this work, the curing of «ED‐20» epoxy resin with partially siloxy‐substituted aluminum, iron, and zirconium siloxanes that we obtained previously was studied. The initial content of a metallosiloxane in the compositions was 5–50 wt% with respect to the resin. In all the cases, thermal curing was used to obtain a series of samples in the form of solid homogeneous materials. The fact of the epoxy ring opening in the resin was confirmed by IR spectroscopy. The catalytic properties of the metal atom in a metallosiloxane were found to affect the curing process. The samples demonstrate rather a high resistance to thermooxidative destruction, and in most cases, their glass transition temperatures are lower than those obtained upon standard curing of «ED‐20» resin with triethylenetetramine. Partially siloxy‐substituted metalloalkoxysiloxanes can be efficient agents for curing and formation of a hybrid material based on epoxy resins.

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Measurements of material erosion in space by atomic oxygen using the on-orbit material degradation detector

Verker¹,

Keren²,

Refaeli³

et al. 2023

Acta Astronautica

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Atomic oxygen erosion resistance of polyimides filled hybrid nanoparticles

Cited by 22 publications

References 43 publications

Influence of the Composition of the Hybrid Filler on the Atomic Oxygen Erosion Resistance of Polyimide Nanocomposites

Influence of the Composition of the Hybrid Filler on the Atomic Oxygen Erosion Resistance of Polyimide Nanocomposites

Monitoring the curing processes of epoxy oligomers with partially substituted polyethoxymetallosiloxanes by IR spectroscopy and thermomechanical analysis

Measurements of material erosion in space by atomic oxygen using the on-orbit material degradation detector

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