1. bookVolume 29 (2021): Edition 4 (December 2021)
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Magazine
eISSN
2450-5781
Première parution
30 Mar 2017
Périodicité
4 fois par an
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Anglais
access type Accès libre

Wear Resistance Improvement of Linear Block-Polyurethanes Under Conditions of Liquid Friction

Publié en ligne: 14 Dec 2021
Volume & Edition: Volume 29 (2021) - Edition 4 (December 2021)
Pages: 287 - 293
Détails du magazine
License
Format
Magazine
eISSN
2450-5781
Première parution
30 Mar 2017
Périodicité
4 fois par an
Langues
Anglais
Abstract

A significant disadvantage of parts made of linear block polyurethanes under conditions of friction contact in the presence of an aqueous medium is the intensification of hydrolysis processes and decrease in volume strength. It was proposed to slow down the hydrolysis of polyurethanes in three ways: by directed changes in chemical structure, by electromagnetic radiation of different intensities and by creation of composite materials, based on the principle of additional intermolecular crosslinking at the manufacturing and hot processing stages. The conditions for the formation of a smooth wear-resistant surface that protects the material from rapid destruction are revealed.

Keywords

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