Study of mechanical and electrical properties through positron annihilation spectroscopy for ethylene-propylene-diene rubber biocomposites with treated wheat husk fibers.

Hamdy F M Mohamed, Howayda G Taha, Wael M Mohammed, Esam E Abdel-Hady, Somia Awad

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Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

Insights into γ-irradiation effect on hole structure and conductivity of doped ethylene-propylene-diene rubber with different wheat husk fibers lengths.Scientific reports · 2025
Article

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5 · Who and what money

Authors and funding

5 authors.

Hamdy F M MohamedPhysics Department, Faculty of Science, Minia University, P.O. Box 61519, Minia, Egypt.

Howayda G TahaRadiation Safety Department, Nuclear and Radiological Safety Research Center, Atomic Energy Authority, Cairo, Egypt. hg_taha@yahoo.com.

Wael M MohammedPhysics Department, Faculty of Science, Minia University, P.O. Box 61519, Minia, Egypt.

Esam E Abdel-HadyPhysics Department, Faculty of Science, Minia University, P.O. Box 61519, Minia, Egypt.

Somia AwadPhysics Department, Faculty of Science, Minia University, P.O. Box 61519, Minia, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The positron annihilation lifetime (PAL) spectroscopy characteristics of ethylene-propylene-diene monomer rubber (EPDM) composites reinforced with treated wheat husk fibers (WHFs) were investigated for the first time. PAL spectroscopy is employed to study the free volume of polymers. The use of lignocellulosic materials as reinforcement in polymeric composites has gained attention due to their low cost, availability, and eco-friendliness. In this study, the impact of the loading concentration on the interfacial adhesion between the EPDM matrix and WHFs is quantified, along with the evaluation of swelling measurement and tensile properties. Additionally, the nanoscopic properties derived from PAL spectroscopy correlate with the composites' macroscopic properties. In addition, the dielectric properties of the investigated samples have been studied, and their conductivity has been calculated. To determine the conduction mechanism within these samples and how it is affected by the addition of WHF, the change in electrical conductivity with the frequency of the external electric field applied to the samples was studied, and from this, the conduction mechanism was determined, and the barrier height value was calculated. The experimental results provide insights into the relationship between the structure and properties of EPDM-WHF biocomposites, offering valuable knowledge for developing sustainable and high-performance materials.

Indexed as

Electrical conductivityEthylene-propylene-diene monomer rubber (EPDM)Free volumePositron annihilation lifetime (PAL)PositroniumSwellingWheat husk fibers (WHFs)

Identifiers

PMID39414887

DOI10.1038/s41598-024-73594-3

PMCPMC11484812

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