Features of foaming of polyimide pitches with reduced pressure

Sorokin A.E., Platonov M.M., Malyshenok S.V.
UDC
678.8
DOI
10.18577/2307-6046-2017-0-4-7-7
Article PDF (Russian) (721.37 KB)
How to cite
Sorokin A.E., Platonov M.M., Malyshenok S.V. Features of foaming of polyimide pitches with reduced pressure // Proceedings of VIAM. 2017. No. 4. DOI: 10.18577/2307-6046-2017-0-4-7-7. URL: https://test.viam.ru/en/journal/2017/4/7
Keywords
polymeric material, rigid polyimide foam, vacuum, foaming, compressive strength, heat resistance.
Abstract

The approach of the blowing polyimide resins and thereof compositions under reduced pressure is considered in the article. A comparison of the properties of foams obtained by foaming in air and under reduced pressure has been made. It was shown that the foaming under vacuum allows to obtain material possessing more stable strength properties and high thermal stability. A comparison of the properties of the material obtained from imported developments has been made. The technology of their production, properties and processing of different geometries products have been shown. The work was performed as part of the strategic direction number 16. «Ultra-light foam» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)

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