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79398

FRICTION AND WEAR OF EPOXY REINFORCED BY POLYAMIDE FIBERS

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Last updated: 25 Dec 2024

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Abstract

The present work investigates experimentally the effect of reinforcing epoxy matrix by polyamide fibers of different diameters on the friction and wear at dry sliding against steel surface.
 
The experiments showed that, friction coefficient displayed by the tested composites drastically decreased as the polyamide content increased, while it significantly increased up to maximum then drastically decreased with increasing polyamide fiber diameter. Wear increased up to maximum then slightly decreased with increasing fiber diameter. At constant content of polyamide fibers to epoxy matrix, fibers of relatively low diameter showed the lowest wear. Wear mechanism of the tested composites is based on the triboelectrification of the sliding surfaces, where the contact area is charged by double layer of electrostatic charge (ESC) of different charge. Consequently, layers of epoxy can transfer and adhere to the steel counterface, where the contact will be epoxy/epoxy rather than epoxy/steel. Those contact materials are responsible for the friction increase. The transfer and transfer back of polymeric materials that accumulated to form film adhered to the steel surface are representing the prevailed wear mechanism.

DOI

10.21608/jest.2018.79398

Keywords

Friction coefficient, Wear, Epoxy, polyamide fibers, reinforcement and electrostatic charge

Authors

First Name

F.

Last Name

Zahraa

MiddleName

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Affiliation

Production Engineering and Mechanical Design Dept., Faculty of Engineering, Minia University, El-Minia, EGYPT

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Orcid

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First Name

W. Y.

Last Name

Ali

MiddleName

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Affiliation

Production Engineering and Mechanical Design Dept., Faculty of Engineering, Minia University, El-Minia, EGYPT

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Volume

15

Article Issue

4

Related Issue

11855

Issue Date

2018-10-01

Receive Date

2018-06-26

Publish Date

2018-10-01

Page Start

26

Page End

36

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 15_Issue 4_Pages 26-36.pdf

PDF . 555.4kB

Link

https://jest.journals.ekb.eg/article_79398.html

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https://jest.journals.ekb.eg/service?article_code=79398

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Original Article

Type Code

1,211

Publication Type

Journal

Publication Title

Journal of the Egyptian Society of Tribology

Publication Link

https://jest.journals.ekb.eg/

MainTitle

FRICTION AND WEAR OF EPOXY REINFORCED BY POLYAMIDE FIBERS

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Article

Created At

22 Jan 2023