Open AccessINCREASING OF WEAR RESISTANCE OF LINEAR BLOCK-POLYURETHANES BY THERMAL PROCESSING METHODS
Author(s) -
Anton Panda,
VOLODYMYR MYKOLAJOVYCH ANISIMOV,
Viatcheslav V. Anisimov,
Kostiantyn Dyadyura,
Iveta Pandová
Publication year - 2021
Publication title -
mm science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.195
H-Index - 10
eISSN - 1805-0476
pISSN - 1803-1269
DOI - 10.17973/mmsj.2021_10_2021018
Subject(s) - materials science , thermal , composite material , water resistance , block (permutation group theory) , thermal resistance , hydrolysis , intensity (physics) , optics , chemistry , biochemistry , physics , geometry , mathematics , meteorology
A significant imperfection of parts made from linear block-polyurethanes under conditions of friction contact in the presence of water medium is an intensification of hydrolysis processes and reduction of bulk strength. In order to slow down the hydrolysis process, samples of the polyurethanes were subjected to three types of thermal impacts: thermal processing during some time, infrared and laser irradiations. It has been established that processing in thermal fields of different intensity allows 5-10 times increase of wear resistance of these materials during friction in water medium.