Characteristics of wood–polymer composite for journal bearing materials

Published Date
November 2008, Vol.86(1):279–284, doi:10.1016/j.compstruct.2008.03.011
Fourteenth International Conference on Composite Structures

Author 

• Seong Su Kim
• Ha Na Yu
• In Uk Hwang
• Dai Gil Lee ^,

• Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, ME3221, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea

Available online 15 March 2008.

Abstract

Wood is widely used as a construction material, automotive parts, and equipment for leisure-time amusement; however, its application on the journal bearing was restricted, because of its low strength and poor tribological characteristics.

In this work, paulownia wood which has low density and high porosity was impregnated with polyethylene glycol (PEG), lubricant oil (SAE 30), release agent and epoxy to improve the mechanical properties and tribological characteristics. The ultrasonic vibration was given to the wood immersed in the acetone tub to remove debris generated during the cutting process of wood and to dissolve the membrane of lignin in the wood. From the test results, it was found that the PEG was the promising material to improve the physical properties of wood for journal bearings.

Keywords

Wood–polymer composites

PEG

Impregnation

Compressive strength

Friction coefficient

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