Tensile strength analysis of high density polyethylene for injection moulded parts

R. Zuraimi, M. A. Sulaiman, E. Mohamad, Jaharah A Ghani

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper investigates the performance of pure high density polyethylene (p-HDPE) and recycled high density polyethylene (r-HDPE) by comparing the tensile strength of both materials. The specimens were injected by injection moulding machine and the parameters investigated were melting temperature (200-240°C), injection pressure (75-95 MPa), and holding time (20-30 s). Response Surface Methodology (RSM) was used to accommodate the experimental run as well as to analyse the experimental results. The result from Analysis of Variance (ANOVA) showed that the melting temperature is the most significant parameters affecting the tensile strength of both materials with the F-value is 307.58, followed by injection pressure (77.32) and holding time (19.67). The result also showed that the tensile strength of both materials increase with increasing of melt temperature, injection pressure and holding time. The optimal tensile strength of p-HDPE (27.04 MPa) was obtained at the melting temperature of 240°C, injection pressure of 95 MPa and holding time of 20 s. On the other hand, the optimal tensile strength of r-HDPE (16.058 MPa) was achieved at the melting temperature of 240°C, injection pressure of 95 MPa, and holding time of 29 s. The reduction percentage of tensile strength for r-HDPE as compared to p-HDPE was in the range of 43.478% - 40.703%. Even though the tensile strength of r-HDPE has been reduced by around 40% as compared to p-HDPE, the r-HDPE can still be utilised for packaging application such as containers, bottles, and jars. Therefore, this will help to significantly reduce waste in order to sustain the environment.

Original languageEnglish
Pages (from-to)151-164
Number of pages14
JournalJournal of Advanced Manufacturing Technology
Volume11
Issue number1 Special Issue
Publication statusPublished - 2017

Fingerprint

Tensile Strength
High density polyethylenes
Injection
Tensile strength
Melting
Melting point
Strength of materials
Polyethylene
Response Surface Methodology
Injection Molding
Bottles
Packaging
Analysis of variance
Analysis of variance (ANOVA)
Container
Injection molding
Containers
Percentage
Temperature
Experimental Results

Keywords

  • Design of experiment
  • HDPE
  • Optimization
  • Plastic injection moulding
  • Tensile strength

ASJC Scopus subject areas

  • Management of Technology and Innovation
  • Computer Networks and Communications
  • Hardware and Architecture
  • Software
  • Automotive Engineering
  • Industrial and Manufacturing Engineering
  • Control and Optimization

Cite this

Tensile strength analysis of high density polyethylene for injection moulded parts. / Zuraimi, R.; Sulaiman, M. A.; Mohamad, E.; A Ghani, Jaharah.

In: Journal of Advanced Manufacturing Technology, Vol. 11, No. 1 Special Issue, 2017, p. 151-164.

Research output: Contribution to journalArticle

Zuraimi, R. ; Sulaiman, M. A. ; Mohamad, E. ; A Ghani, Jaharah. / Tensile strength analysis of high density polyethylene for injection moulded parts. In: Journal of Advanced Manufacturing Technology. 2017 ; Vol. 11, No. 1 Special Issue. pp. 151-164.
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