TRIBOLOGICAL PROPERTIES AND TRIBOCHEMICAL CONVERSION OF BIONIC LUBRICANTS BASED ON SODIUM HYALURONATE

Journal Title: Tribologia - Year 2018, Vol 277, Issue 1

Abstract

The aim of the study was to investigate the influence of the sodium hyaluronate in water on the tribological properties of the composition as well as an instrumental analysis of changes in the molecular structure of the bionic lubricant during friction. Tribological tests were carried out using a MCR 102 rheometer in a ball-plate combination made of bearing steel. Based on the recorded friction coefficient values, it was found that a significant improvement in friction conditions may be achieved using a composition containing 0.5% (m / m) of sodium hyaluronate in water. In this case, the value of the friction coefficient can be even below 0.1. This effect was also reflected in the minimization of material loses by about 24% compared to the wear of a friction pair lubricated only with water. During friction, the active component of the lubricant is subjected to tribo-chemical conversion and the resulting products are deposited on the working surfaces of the friction pair. The chemical structure of the resulting products was examined using SEM/EDS, XPS and FTIR. It was found that the active chemical moieties undergoing chemical conversion are the oxygen and nitrogen functional groups present in sodium hyaluronate.<br/><br/>

Authors and Affiliations

Jarosław MOLENDA

Keywords

Related Articles

Badania wpływu budowy chemicznej związków ciekłokrystalicznych dodawanych do oleju parafinowego na właściwości tribologiczne mieszaniny smarowej

Związki ciekłokrystaliczne dodane do typowych środków smarowych, jakimi są oleje mineralne, poprawiają ich właściwości tribologiczne [L. 13]. W pracy badano wpływ związków ciekłokrystalicznych z kilku szeregów homologicz...

Wpływ preparatów krwi na właściwości tribologiczne skojarzenia UHMWPE/STOP CoCrMo

Wprowadzenie nowego materiału na implanty długookresowe, a zwłaszcza endoprotezy, powinno być poprzedzone kompleksowymi badaniami – w tym tribologicznymi. Niemożliwe do pominięcia badania eksploatacyjne in vitro materiał...

TRIBOLOGICAL PROPERTIES APT T5W DIFFERENT NODES RELATED TO FRICTION AND TYPES OF MOTION

The aim of the paper is to show the tribological properties of aluminium oxide coatings deposited on EN-AW-5251 aluminium alloy by the hard anodising method. The oxide coating is characterised by fibrous structure and po...

THE EFFECT OF SURFACE ROUGHNESS ON THE TRIBOLOGICAL PROPERTIES OF SLIDING ELEMENTS IN MATERIAL ASSEMBLY SiC–42CrMo4

The results of the investigations of sliding pairs of SiC ceramics and 42CrMo4 steel are presented in the article. The steel surface was prepared with three different technological methods of finishing. The surface rough...

WPŁYW DITIOFOSFORANU CYNKU NA TARCIE I ZUŻYCIE CZĘŚCIOWO STABILIZOWANEGO TLENKU CYRKONU CZĘŚĆ I. WŁAŚCIWOŚCI TRIBOLOGICZNE DI-N-ALKILODITIOFOSFORANÓW CYNKU

Tribologiczne właściwości di-n-alkiloditiofosforanów (ZDTPs) w styku pary tarciowej jonowego – ZrO2 częściowo stabilizowanego Y2O3 [PSZ] były badane z użyciem tribometru kula-dysk w 25ºC. Stwierdzono, że ZDTPs znacząco z...

Download PDF file
  • EP ID EP346181
  • DOI 10.5604/01.3001.0011.9889
  • Views 42
  • Downloads 0

How To Cite

Jarosław MOLENDA (2018). TRIBOLOGICAL PROPERTIES AND TRIBOCHEMICAL CONVERSION OF BIONIC LUBRICANTS BASED ON SODIUM HYALURONATE. Tribologia, 277(1), 71-80. https://europub.co.uk/articles/-A-346181