Identificationof the reasons of porosity formation when manufacturing compo-sites

Dushin M.I., Donetskiy K.I., Karavaev R.Y.
UDC
678.8
DOI
10.18577/2307-6046-2016-0-6-8-8
Article PDF (Russian) (639.84 KB)
How to cite
Dushin M.I., Donetskiy K.I., Karavaev R.Y. Identificationof the reasons of porosity formation when manufacturing compo-sites // Proceedings of VIAM. 2016. No. 6. DOI: 10.18577/2307-6046-2016-0-6-8-8. URL: https://test.viam.ru/en/journal/2016/6/8
Keywords
out-of-autoclave molding, infusion, moisture.
Abstract

It is known that porosity in polymeric composite materials (PCM) exerts a considerable impact on strength properties of the products working in the conditions of bending, compression and shearing load. Now in Federal state unitary enterprise «All-Russian scientific research institute of aviation materials» the works on creation of pore-free PCM produced by methods of autoclave and out-of-autoclave molding are conducted according to the strategic directions of development of materials and technologies of their processing for the period up to 2030 (13.2. «Structural PCM») [1]. The purpose of this work is the identification of main sources of porosity formation when manufacturing PCM by different methods. It is established on the tested flat samples collected from humidified prepregs molded in the autoclave or under vacuum that the main source of porosity formation is the moisture containing in binding and reinforcing fillers. Results of the study of feasibility of carbon plastics produ

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