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79938

COMPARATIVE PERFORMANCE OF FRICTION COEFFICIENT DISPLAYED BY POLYMERS FILLED BY VEGETABLES OILS

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Last updated: 25 Dec 2024

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Abstract

The present work investigates the friction coefficient of polymers filled by vegetables oils such as almond, camphor, castor, cress, flax seed, black seed, lettuce, olive, sesame and sun flower oils in content up to 10 wt. %. The polymers are polyamide 6 (PA), high density polyethylene(PE) and polyvinyl chloride(PVC). The friction coefficient displayed by the tested polymers is investigated at constant load and velocity when sliding against steel.
 
Experiments showed that friction coefficient displayed by the tested polymers filled by the tested vegetables oils decreased with increasing oil content. The minimum values of friction coefficient were observed at 10 wt. % oil content for PA composites filled by camphor, castor, cress, flax seed, black seed, sesame and sun flower oils. PE composites filled by almond, lettuce and olive oils showed the lowest friction values. The friction decrease may be attributed to the oil stored in the pores inside the polymer matrix which experienced boundary lubricating film of low shear interfacial layer formed on the sliding surfaces and easily removed by the shear instead of the contacting asperities. Those pores were working as reservoirs feeding oil into the contact surface. The minimum friction values recommend using 10 wt. % oil filled PA as bearing material in dry sliding condition.

DOI

10.21608/jest.2015.79938

Keywords

Friction coefficient, PA, PE, PVC, vegetables oils, steel

Authors

First Name

A. S.

Last Name

Ibrahim

MiddleName

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Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT.

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Orcid

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First Name

M. I.

Last Name

Khashaba

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT.

Email

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City

-

Orcid

-

First Name

W. Y.

Last Name

Ali

MiddleName

-

Affiliation

Faculty of Engineering, Minia University, P. N. 61111, El-Minia, EGYPT.

Email

-

City

-

Orcid

-

Volume

12

Article Issue

4

Related Issue

12008

Issue Date

2015-10-01

Receive Date

2015-05-10

Publish Date

2015-10-01

Page Start

53

Page End

66

Print ISSN

2090-5882

Online ISSN

2090-5955

Link

https://jest.journals.ekb.eg/article_79938.html

Detail API

https://jest.journals.ekb.eg/service?article_code=79938

Order

5

Type

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

COMPARATIVE PERFORMANCE OF FRICTION COEFFICIENT DISPLAYED BY POLYMERS FILLED BY VEGETABLES OILS

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Article

Created At

22 Jan 2023