Wear-resistant ultrahigh-molecular-weight polyethylene-based nano- and microcomposites for implants

S. V. Panin, L. A. Kornienko, N. Sonjaitham, M. V. Tchaikina, Victor Petrovich Sergeev, L. R. Ivanova, S. V. Shilko

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The influence of modification by hydroxyapatite (HA) nano- and microparticles on tribotechnical properties of ultrahigh-molecular-weight polyethylene (UHMWPE) was investigated to develop polymer implants for endoprosthesis. It was shown that modification of UHMWPE by hydroxyapatite nanoparticles within range of 0.10.5 wt. results in increase of wear resistance at dry sliding by 3 times. On the other hand adding of 20 wt. of micron size HA gives rise to the same effect. The effect of increasing wear resistance is not substantially changed at surface treatment of the nano- and microcomposites by N + ion beams as compared with nonirradiated blends. Preliminary joint mechanical activation of UHMWPE powder and fillers results in more uniform distribution of nanofillers in the matrix and, as a result, formation of more ordered structure. Structure within bulk material and surface layers was studied by means of optical profilometry, scanning electron microscopy, infrared spectroscopy, and differential scanning calorimetry. It is shown that adding of hydroxyapatite nanoparticles and high-energy surface treatment of the composite by N + ion implantation improve tribotechnical properties of UHMWPE due to formation of chemical bonds in the composite (crosslinking) and ordering of permolecular structure.

Original languageEnglish
Article number729756
JournalJournal of Nanotechnology
DOIs
Publication statusPublished - 2012

Fingerprint

Ultrahigh molecular weight polyethylenes
Durapatite
Hydroxyapatite
Nanocomposites
Wear of materials
Nanoparticles
Wear resistance
Surface treatment
Profilometry
Chemical bonds
Composite materials
Ion implantation
Crosslinking
Powders
Ion beams
Fillers
Differential scanning calorimetry
Infrared spectroscopy
Polymers
Chemical activation

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Wear-resistant ultrahigh-molecular-weight polyethylene-based nano- and microcomposites for implants. / Panin, S. V.; Kornienko, L. A.; Sonjaitham, N.; Tchaikina, M. V.; Sergeev, Victor Petrovich; Ivanova, L. R.; Shilko, S. V.

In: Journal of Nanotechnology, 2012.

Research output: Contribution to journalArticle

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AU - Tchaikina, M. V.

AU - Sergeev, Victor Petrovich

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