Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity

K. S. Kanaga Karuppiah; Angela L. Bruck; Sriram Sundararajan; Jun Wang; Zhiqun Lin; Zhi Hui Xu; Xiaodong Li

doi:10.1016/j.actbio.2008.02.022

Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity

K. S. Kanaga Karuppiah, Angela L. Bruck, Sriram Sundararajan, Jun Wang, Zhiqun Lin, Zhi Hui Xu, Xiaodong Li

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

137 Scopus citations

Abstract

In this study the friction, wear and surface mechanical behavior of medical-grade ultra-high molecular weight polyethylene (UHMWPE) (GUR 1050 resin) were evaluated as a function of polymer crystallinity. Crystallinity was controlled by heating UHMWPE to a temperature above its melting point and varying the hold time and cooling rates. The degree of crystallinity of the samples was evaluated using differential scanning calorimetry (DSC). A higher degree of crystallinity in the UHMWPE resulted in lower friction force and an increase in scratch resistance at the micro- and nanoscales. On the nanoscale, the lamellar structure appeared to affect the observed wear resistance. Reciprocating-wear tests performed using a microtribometer showed that an increase in crystallinity also resulted in lower wear depth and width. Nanoindentation experiments also showed an increase in hardness values with an increase in sample crystallinity.

Original language	English
Pages (from-to)	1401-1410
Number of pages	10
Journal	Acta Biomaterialia
Volume	4
Issue number	5
DOIs	https://doi.org/10.1016/j.actbio.2008.02.022
State	Published - Sep 2008

Bibliographical note

Funding Information:
Financial support for this study was provided by a National Science Foundation Grant (Grant No. CMS0409625) and a seed Grant from US-DOE Ames Laboratory.

Keywords

Crystallinity
Friction
Total joint replacements
Ultra-high molecular weight polyethylene (UHMWPE)
Wear

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10.1016/j.actbio.2008.02.022

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title = "Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity",

abstract = "In this study the friction, wear and surface mechanical behavior of medical-grade ultra-high molecular weight polyethylene (UHMWPE) (GUR 1050 resin) were evaluated as a function of polymer crystallinity. Crystallinity was controlled by heating UHMWPE to a temperature above its melting point and varying the hold time and cooling rates. The degree of crystallinity of the samples was evaluated using differential scanning calorimetry (DSC). A higher degree of crystallinity in the UHMWPE resulted in lower friction force and an increase in scratch resistance at the micro- and nanoscales. On the nanoscale, the lamellar structure appeared to affect the observed wear resistance. Reciprocating-wear tests performed using a microtribometer showed that an increase in crystallinity also resulted in lower wear depth and width. Nanoindentation experiments also showed an increase in hardness values with an increase in sample crystallinity.",

keywords = "Crystallinity, Friction, Total joint replacements, Ultra-high molecular weight polyethylene (UHMWPE), Wear",

author = "\{Kanaga Karuppiah\}, \{K. S.\} and Bruck, \{Angela L.\} and Sriram Sundararajan and Jun Wang and Zhiqun Lin and Xu, \{Zhi Hui\} and Xiaodong Li",

note = "Funding Information: Financial support for this study was provided by a National Science Foundation Grant (Grant No. CMS0409625) and a seed Grant from US-DOE Ames Laboratory.",

year = "2008",

month = sep,

doi = "10.1016/j.actbio.2008.02.022",

language = "English",

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T1 - Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity

AU - Kanaga Karuppiah, K. S.

AU - Bruck, Angela L.

AU - Sundararajan, Sriram

AU - Wang, Jun

AU - Lin, Zhiqun

AU - Xu, Zhi Hui

AU - Li, Xiaodong

N1 - Funding Information: Financial support for this study was provided by a National Science Foundation Grant (Grant No. CMS0409625) and a seed Grant from US-DOE Ames Laboratory.

PY - 2008/9

Y1 - 2008/9

N2 - In this study the friction, wear and surface mechanical behavior of medical-grade ultra-high molecular weight polyethylene (UHMWPE) (GUR 1050 resin) were evaluated as a function of polymer crystallinity. Crystallinity was controlled by heating UHMWPE to a temperature above its melting point and varying the hold time and cooling rates. The degree of crystallinity of the samples was evaluated using differential scanning calorimetry (DSC). A higher degree of crystallinity in the UHMWPE resulted in lower friction force and an increase in scratch resistance at the micro- and nanoscales. On the nanoscale, the lamellar structure appeared to affect the observed wear resistance. Reciprocating-wear tests performed using a microtribometer showed that an increase in crystallinity also resulted in lower wear depth and width. Nanoindentation experiments also showed an increase in hardness values with an increase in sample crystallinity.

AB - In this study the friction, wear and surface mechanical behavior of medical-grade ultra-high molecular weight polyethylene (UHMWPE) (GUR 1050 resin) were evaluated as a function of polymer crystallinity. Crystallinity was controlled by heating UHMWPE to a temperature above its melting point and varying the hold time and cooling rates. The degree of crystallinity of the samples was evaluated using differential scanning calorimetry (DSC). A higher degree of crystallinity in the UHMWPE resulted in lower friction force and an increase in scratch resistance at the micro- and nanoscales. On the nanoscale, the lamellar structure appeared to affect the observed wear resistance. Reciprocating-wear tests performed using a microtribometer showed that an increase in crystallinity also resulted in lower wear depth and width. Nanoindentation experiments also showed an increase in hardness values with an increase in sample crystallinity.

KW - Crystallinity

KW - Friction

KW - Total joint replacements

KW - Ultra-high molecular weight polyethylene (UHMWPE)

KW - Wear

UR - https://www.scopus.com/pages/publications/48449093110

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DO - 10.1016/j.actbio.2008.02.022

M3 - Article

C2 - 18378200

AN - SCOPUS:48449093110

SN - 1742-7061

VL - 4

SP - 1401

EP - 1410

JO - Acta Biomaterialia

JF - Acta Biomaterialia

IS - 5

ER -

Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity

Abstract

Bibliographical note

Keywords

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