Friction and wear of polyamide 66 with different weight average molar mass

M. W. Shin; S. S. Kim; H. Jang

doi:10.1007/s11249-011-9833-3

Friction and wear of polyamide 66 with different weight average molar mass

M. W. Shin, S. S. Kim, H. Jang

Department of Materials Science and Engineering

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

20 Citations (Scopus)

Abstract

The friction and wear of monolithic polyamide 66 (PA66) and a PA66 composite reinforced with short glass fibers were examined using a block-on-ring friction tester with particular focus on the effect of weight average molar mass (M _w) of PA66. The amount of glass fibers in the composite and the molecular weight strongly affected the friction level and wear rate because it altered the shear strength and adhesion of PA66. In the case of the glass fiber-reinforced PA66 composites, the improvement of the tribological property was attributed to the increased softening temperature of the composite and reduced material transfer to the counter surface. From this study, the optimum composite having the improved wear resistance with the low friction level was achieved with the lower M _wPA66 containing 40 vol.% glass fibers.

Original language	English
Pages (from-to)	151-158
Number of pages	8
Journal	Tribology Letters
Volume	44
Issue number	2
DOIs	https://doi.org/10.1007/s11249-011-9833-3
Publication status	Published - 2011 Nov

Keywords

Polyamide glass fiber
Roll-formation
Wear mechanism
Weight average molar mass

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

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title = "Friction and wear of polyamide 66 with different weight average molar mass",

abstract = "The friction and wear of monolithic polyamide 66 (PA66) and a PA66 composite reinforced with short glass fibers were examined using a block-on-ring friction tester with particular focus on the effect of weight average molar mass (M w) of PA66. The amount of glass fibers in the composite and the molecular weight strongly affected the friction level and wear rate because it altered the shear strength and adhesion of PA66. In the case of the glass fiber-reinforced PA66 composites, the improvement of the tribological property was attributed to the increased softening temperature of the composite and reduced material transfer to the counter surface. From this study, the optimum composite having the improved wear resistance with the low friction level was achieved with the lower M wPA66 containing 40 vol.% glass fibers.",

keywords = "Polyamide glass fiber, Roll-formation, Wear mechanism, Weight average molar mass",

author = "Shin, {M. W.} and Kim, {S. S.} and H. Jang",

note = "Funding Information: Acknowledgments This study was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Lab. Program funded by Ministry of Science and Technology (R0A-2007-000-10011-0).",

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AU - Kim, S. S.

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N2 - The friction and wear of monolithic polyamide 66 (PA66) and a PA66 composite reinforced with short glass fibers were examined using a block-on-ring friction tester with particular focus on the effect of weight average molar mass (M w) of PA66. The amount of glass fibers in the composite and the molecular weight strongly affected the friction level and wear rate because it altered the shear strength and adhesion of PA66. In the case of the glass fiber-reinforced PA66 composites, the improvement of the tribological property was attributed to the increased softening temperature of the composite and reduced material transfer to the counter surface. From this study, the optimum composite having the improved wear resistance with the low friction level was achieved with the lower M wPA66 containing 40 vol.% glass fibers.

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