Characterization of recycled thermoplastics-based nanocomposites

Polymer-clay compatibility, blending procedure, processing condition, and clay content effects

Ruey Shan Chen, Sahrim Ahmad, Sinyee Gan

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Nanocomposites were prepared from recycled polyolefin and clay via melt-blending. The absence/presence of compatibilizer, the blending procedure, and the processing conditions were varied to study their independent effects. First, the compatibilizers ethylene-glycidyl methacrylate (E-GMA) and/or maleic anhydride polyethylene (MAPE) were incorporated with the clay. Second, the initial one-step blending procedure was replaced with a two-step blending procedure in the preparation of the rHDPE/rPET/clay/E-GMA nanocomposite. Third, the extrusion temperature profile and screw rotation speed (30, 60, 90, 120 and 150 rpm) were altered. The overall results from XRD analysis and flexural testing showed that a combination involving the E-GMA compatibilizer, the two-step blending procedure, a high extrusion temperature and a screw rotation speed of 90 rpm was the most effective for obtaining improved clay dispersion and increasing the flexural properties. In the final investigation, various nanoclay contents (1, 3, 5, 7 and 9 wt.%) were introduced. The results showed that the flexural properties, the dispersion of the clay, the thermal stability and the flammability resistance increased with the nanoclay content.

Original languageEnglish
Pages (from-to)91-99
Number of pages9
JournalComposites Part B: Engineering
Volume131
DOIs
Publication statusPublished - 15 Dec 2017

Fingerprint

Thermoplastics
Nanocomposites
Polymers
Clay
Compatibilizers
Processing
Ethylene
Extrusion
Maleic Anhydrides
Polyolefins
Flammability
Maleic anhydride
Polyethylene
Polyethylenes
Thermodynamic stability
clay
Temperature
Testing
glycidyl methacrylate
ethylene

Keywords

  • Layered structures
  • Mechanical properties
  • Polymer-matrix composites (PMCs)
  • Thermal properties

ASJC Scopus subject areas

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

Cite this

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abstract = "Nanocomposites were prepared from recycled polyolefin and clay via melt-blending. The absence/presence of compatibilizer, the blending procedure, and the processing conditions were varied to study their independent effects. First, the compatibilizers ethylene-glycidyl methacrylate (E-GMA) and/or maleic anhydride polyethylene (MAPE) were incorporated with the clay. Second, the initial one-step blending procedure was replaced with a two-step blending procedure in the preparation of the rHDPE/rPET/clay/E-GMA nanocomposite. Third, the extrusion temperature profile and screw rotation speed (30, 60, 90, 120 and 150 rpm) were altered. The overall results from XRD analysis and flexural testing showed that a combination involving the E-GMA compatibilizer, the two-step blending procedure, a high extrusion temperature and a screw rotation speed of 90 rpm was the most effective for obtaining improved clay dispersion and increasing the flexural properties. In the final investigation, various nanoclay contents (1, 3, 5, 7 and 9 wt.{\%}) were introduced. The results showed that the flexural properties, the dispersion of the clay, the thermal stability and the flammability resistance increased with the nanoclay content.",
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