Influence of structure of polymeric matrix on structure and property priming coverings

Kuznetsova V.A., Zheleznyak V.G., Lonskii S.L., Kovrizhkina N.A., Silaeva A.A.
UDC
678.026
DOI
10.18577/2307-6046-2021-0-8-50-58
Article PDF (Russian) (699.14 KB)
How to cite
Kuznetsova V.A., Zheleznyak V.G., Lonskii S.L., Kovrizhkina N.A., Silaeva A.A. Influence of structure of polymeric matrix on structure and property priming coverings // Proceedings of VIAM. 2021. No. 8. DOI: 10.18577/2307-6046-2021-0-8-50-58. URL: https://test.viam.ru/en/journal/2021/8/6
Keywords
primer coatings, adhesion, tensile strength, impact strength, water absorption, scanning electron microscopy, phase structure.
Abstract

Adhesion, physicomechanical properties, and also kinetics of water absorption of priming coatings on basis the E-41 epoxy resin modified by liquid Thiokol 1 and by Laproxide AF, and also their phase structure are investigated. As hardeners of primer compositions organic silicon ammine ASOT-2 and low-molecular polyamide PO-200 has been used. It is shown that use of the reactive modifier Laproxide AF and hardener ASOT-2 in the epoxy and thiokol film-formers allows to receive priming coating with uniform finely divided phase structure with low porosity and high water resistance.

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