Beta
ManageSearchChatDiscover
118065

FRICTION AND WEAR OF POLYMERIC COMPOSITES FILLED BY OILS

Article

Last updated: 25 Dec 2024

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

The present work discusses experimentally the performance of proposed polymeric nanocomposites filled by vegetables and paraffin oils as well as carbon nanotubes (CNT) to be used as bearing materials. Two groups of test specimens were prepared. The first group included high density polyethylene (HDPE), low density polyethylene (LDPE), polystyrene (PS) and polyamide (PA12) that were mixed with 5.0 wt. % paraffin oil and 0.6 wt. % CNT and molded. The second group was PA12 that filled by various kinds of vegetables oils of 5.0 wt. % content and 0.6 wt. % CNT as well.
 
The proposed nanocomposites were introduced to enable the bearing to overcome the boundary lubrication condition, whereas every two mating surfaces are in contact with each other experience asperities partially. In that condition, CNT can probably improve the self lubricating properties when the oil film is difficult to be formed on the contact area. Besides, oil contained in the pores flows to the surface due to the heat generated by friction and forms an oil film, where the pressure generated by the hydrodynamic action separates the two sliding surfaces and carries the load. Presence of oil inside the polymeric matrix of the nanocomposites makes the bearing operates for relatively longer time without further lubrication.
 
Based on the experimental results, it was found that, significant decrease in friction coefficient and wear was observed for the proposed nanocomposites due to their self-lubrication performance. Also an improvement of the tribological properties has been attained. The improvement was attributed to the strengthening effect and self-lubricating mechanism of CNT as well as the presence of vegetables oils that facilitated the rolling motion of CNT. Besides, filling PA12 by vegetables oils caused significant decrease in wear values. Sesame oil can be recommended to fill PA12 nanocomposites.

DOI

10.21608/jest.2020.118065

Keywords

Friction, Wear, polymeric nanocomposites, bearings

Authors

First Name

Ali Abdelhameed

Last Name

Rania

MiddleName

-

Affiliation

Department of Production Engineering and Mechanical Design, Minia University, Minia, EGYPT.

Email

-

City

-

Orcid

-

First Name

Zein El-Abden

Last Name

Samy

MiddleName

-

Affiliation

Department of Production Engineering and Mechanical Design, Minia University, Minia, EGYPT.

Email

-

City

-

Orcid

-

First Name

Abdel-Rahman

Last Name

Mohieldeen

MiddleName

-

Affiliation

Department of Production Engineering and Mechanical Design, Minia University, Minia, EGYPT.

Email

-

City

-

Orcid

-

First Name

M. Hassab-Allah

Last Name

Ibrahim

MiddleName

-

Affiliation

Mechanical Engineering Department, Faculty of Engineering, Assuit University, Assuit, EGYPT.

Email

-

City

-

Orcid

-

Volume

17

Article Issue

4

Related Issue

17617

Issue Date

2020-10-01

Receive Date

2020-06-28

Publish Date

2020-10-01

Page Start

44

Page End

54

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 17_Issue 4_Pages 44-54.pdf

PDF . 920.9kB

Link

https://jest.journals.ekb.eg/article_118065.html

Detail API

https://jest.journals.ekb.eg/service?article_code=118065

Order

8

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

FRICTION AND WEAR OF POLYMERIC COMPOSITES FILLED BY OILS

Details

Type

Article

Created At

22 Jan 2023