Process optimization of melt spinning and mechanical strength enhancement of functionalized multi-walled carbon nanotubes reinforcing polyethylene fibers

Abu Bakar Sulong, Joohyuk Park, Che Husna Azhari, Kamaruzaman Jusoff

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Carboxylic functional groups were introduced on multi-walled carbon nanotubes (MWCNTs) using the Ultraviolet (UV) Ozone treatment. Three melt spinning process parameters (spinning temperature, spinning distance, and the number of spinning revolutions) were evaluated by robust design (Taguchi's method) for a composite of fibers with the objective of enhancing the mechanical strength. The optimized melt spinning parameters were obtained. The predicted strength value of CNTs-PE fibers was determined using statistical analysis, and this value is close to the verification experiment value. Thus, robust design was successfully applied in this study. The crystallization of bulk pure PE was significantly increased by the formation of fibers through mechanical drawing of the melt spinning. The addition of CNTs in the polymer matrix accelerates the nucleation and crystal growth of the polymer. No CNT alignment in the PE matrix was observed on the sectioned surface of the fiber using Scanning Electron Microscopy (SEM). The degree of crystallization of the PE polymer plays an important role in the mechanical strength enhancement.

Original languageEnglish
Pages (from-to)11-17
Number of pages7
JournalComposites Part B: Engineering
Volume42
Issue number1
DOIs
Publication statusPublished - Jan 2011

Fingerprint

Carbon Nanotubes
Melt spinning
Polyethylene
Strength of materials
Polyethylenes
Carbon nanotubes
Crystallization
Fibers
Polymers
Taguchi methods
Ozone
Polymer matrix
Crystal growth
Functional groups
Statistical methods
Nucleation
Scanning electron microscopy
Composite materials
Experiments
Temperature

Keywords

  • A. Polymer (textile) fiber
  • B. Mechanical properties
  • C. Mechanical testing
  • E. Melt spinning

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

Process optimization of melt spinning and mechanical strength enhancement of functionalized multi-walled carbon nanotubes reinforcing polyethylene fibers. / Sulong, Abu Bakar; Park, Joohyuk; Azhari, Che Husna; Jusoff, Kamaruzaman.

In: Composites Part B: Engineering, Vol. 42, No. 1, 01.2011, p. 11-17.

Research output: Contribution to journalArticle

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