Influence of hardener OS-17 on exploiting properties of the varnish covering UR-231

Kuznetsova V.A., Zheleznyak V.G., Baranova N.V., Lebedeva N.N.
UDC
667.64
DOI
10.18577/2307-6046-2018-0-6-68-76
Article PDF (Russian) (722.4 KB)
How to cite
Kuznetsova V.A., Zheleznyak V.G., Baranova N.V., Lebedeva N.N. Influence of hardener OS-17 on exploiting properties of the varnish covering UR-231 // Proceedings of VIAM. 2018. No. 6. DOI: 10.18577/2307-6046-2018-0-6-68-76. URL: https://test.viam.ru/en/journal/2018/6/8
Keywords
lacquer coatings, moisture-protective and electro-isolative varnishes, printed-circuit boards, electronics elements, isocyanate hardeners, polyurethane paints.
Abstract

In the study operational properties of coverings on the basis of varnish UR-231 are investigated. Comparison tests of varnish UR-231 with hardeners OS-17 and diethylene glycol urethane (DGU), and also coverings on their basis are carried out. Varnish UR-231 put on samples of alloy D16-AT and samples of printed circuit boards according to specifications 6-21-14–90. Comparing analysis of the received results was carried for the purpose to define possibility of replacement of DGU hardener on hardener OS-17 in interests of reduction of technological process of painting of varnish coatings at the expense of reduction of time of varnish filmforming.

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