Influence of sulfuric acid on the tensile properties of halloysite reinforced polyurethane composite

Tayser Sumer Gaaz, Abu Bakar Sulong, Abdul Amir H. Kadhum

Research output: Contribution to journalArticle

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Abstract

In this study, the mechanical properties of injection molded of HNTs-TPU composites were investigated. The composites were first made by adding halloysite nanotubes (HNTs) at weight percentages of 1, 2, and 3 wt.% to thermoplastic polyurethane (TPU). Then, HNTs were sulfuric acid-treated before adding to TPU at same weight percentage to create sulfuric acid HNTs-TPU composites. The samples were fabricated using injection molding. The HNTs-TPU composites were characterized according to the mechanical properties, including tensile strength, tensile strain and Young's modulus. The highest mechanical values obtained at 2 wt.% HNTs loading, and similar findings are shown at the samples treated with sulfuric acid. The tensile strength increased until reach 23.78 MPa compare with the 17.7 MPa of the neat TPU, which showing about 25% improvement. For the acid-treated composites, the improvement has reached 34.4% compared to the neat sample. Regarding the tensile stain, the improvement was about 82% at 2 wt.% HNTs loading. The Young's modulus results obtained in this study have shown that it is linearly improved with increment of loading content and sulfuric acid treated of HNTs. Where it achieving the highest values of Young's modulus at 3 wt.% HNTs of 13.3 MPa and 15.2 MPa for untreated and treated, respectively.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalJournal of Mechanical Engineering
VolumeSI 3
Issue number1
Publication statusPublished - 1 Jan 2017

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Tensile properties
Sulfuric acid
Nanotubes
Polyurethanes
Thermoplastics
Composite materials
Elastic moduli
Tensile strength
Mechanical properties
Tensile strain
Injection molding
Acids

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Influence of sulfuric acid on the tensile properties of halloysite reinforced polyurethane composite. / Gaaz, Tayser Sumer; Sulong, Abu Bakar; Kadhum, Abdul Amir H.

In: Journal of Mechanical Engineering, Vol. SI 3, No. 1, 01.01.2017, p. 1-10.

Research output: Contribution to journalArticle

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