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Dynamic mechanical analysis and effects of moisture on mechanical properties of interwoven hemp/polyethylene terephthalate (PET) hybrid composites

Lookup NU author(s): Professor Geoffrey Gibson

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Abstract

A dynamic mechanical analysis was undertaken to determine the influence of moisture on the mechanical properties of interwoven hemp/polyethylene terephthalate (PET) hybrid composites. Composite laminates were fabricated using vacuum infusion process; form epoxy resin reinforced with interwoven hemp and PET fibres. Woven hemp, woven PET, and interwoven hemp/PET hybrid composites were produced. The hybrid hemp/PET composites yielded the highest final residue % due to the PET fibres which improved the thermal stability. The glass transition temperatures of the woven hemp, woven PET, and interwoven hemp/PET hybrid composites were 68, 67, and 69 °C, respectively. Water absorption tests were conducted, and tensile and flexural tests were conducted on the wet and dry specimens. The water uptake of the hemp/PET hybrid composite was half that of the woven hemp composites. The tensile and flexural strengths of the interwoven hemp/PET hybrid composites were 4% and 22% greater than those of the woven hemp composites, respectively.

Publication metadata

Author(s): Ahmad MAA, Abdul Majid MS, Ridzuana MJM, Mazlee MN, Gibson AG

Publication type: Article

Publication status: Published

Journal: Construction and Building Materials

Year: 2018

Volume: 179

Pages: 256-276

Print publication date: 10/08/2018

Online publication date: 31/05/2018

Acceptance date: 26/05/2018

Date deposited: 07/06/2018

ISSN (print): 0950-0618

ISSN (electronic): 1879-0526

Publisher: Elsevier

URL: https://doi.org/10.1016/j.conbuildmat.2018.05.227

DOI: 10.1016/j.conbuildmat.2018.05.227

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