Investigation of the mechanical characteristics of an antifriction polymer composite coating containing PTFE
https://doi.org/10.46973/0201-727X_2025_2_64
Abstract
The mechanical characteristics of an antifriction polymer composite coating based on fabric with PTFE fiber are studied. The fabric of polymer fibers is impregnated and glued to the substrate (base) with a heat-resistant matrix binder of cold curing based on phe nylone with modifiers introduced into the matrix (fine copper powder and oil). The mechanical properties of the coatings were obtained by microindentation using the NanoTest 600 analysis system from Micro materials Ltd. The mechanical characteristics of the experimental samples were determined: microhardness, elastic modulus, as well as their viscoelastic properties. It is shown that the use of the instrumental indentation method can be successfully applied to assess the mechanical characteristics of the considered type of coatings. A technique for obtaining a creep curve for assessing the viscoelastic characteristics of the coating using the continuous indentation method is proposed. The optimal composition of modifiers providing the highest hardness and elastic modulus of the composite is determined.
About the Authors
P. G. Ivanochkin
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Ivanochkin Pavel Grigoryevich, Chair “Theoretical Mechanics”, Doctor of Engineering Sciences, Professor
M. M. Chetverik
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Chetverik Maksim Maksimovich, Student
E. P. Bolshikh
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Bolshikh Elizaveta Pavlovna, Chair “Theoretical Mechanics”, Postgraduate Student
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Review
For citations:
Ivanochkin P.G., Chetverik M.M., Bolshikh E.P. Investigation of the mechanical characteristics of an antifriction polymer composite coating containing PTFE. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(2):64-73. (In Russ.) https://doi.org/10.46973/0201-727X_2025_2_64
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