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[Other] Novel enhancement of interfacial interaction and properties in biodegradable polymer composites using green chemically treated spent coffee ground microfiller

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wosilehuhu Post time 2024-5-27 16:17:51 | Show all posts |Read mode
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Novel enhancement of interfacial interaction and properties in biodegradable polymer composites using green chemically treated spent coffee ground microfillerMohammed Ali A. Majrashi a, Rahul Dev Bairwan b, Rayan Y. Mushtaq c, H.P.S. Abdul Khalil b d, Moutaz Y. Badr e, Mohammed Alissa f, C.K. Abdullah d, Barakat A. Ali g, Waleed Y. Rizg h, Khaled M. Hosny h

https://doi.org/10.1016/j.ijbiomac.2024.131333

Mohammed Ali A. Majrashi, Rahul Dev Bairwan, Rayan Y. Mushtaq, H.P.S. Abdul Khalil, Moutaz Y. Badr, Mohammed Alissa, C.K. Abdullah, Barakat A. Ali, Waleed Y. Rizg, Khaled M. Hosny,
Novel enhancement of interfacial interaction and properties in biodegradable polymer composites using green chemically treated spent coffee ground microfiller,
International Journal of Biological Macromolecules,
Volume 266, Part 2,
2024,
131333,
ISSN 0141-8130,
https://doi.org/10.1016/j.ijbiomac.2024.131333.
(https://www.sciencedirect.com/sc ... i/S014181302402138X)

Abstract: This study investigates the potential of utilizing green chemically treated spent coffee grounds (SCGs) as micro biofiller reinforcement in Poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) biopolymer composites. The aim is to assess the impact of varying SCG concentrations (1 %, 3 %, 5 %, and 7 %) on the functional, thermal, mechanical properties and biodegradability of the resulting composites with a PHBV matrix. The samples were produced through melt compounding using a twin-screw extruder and compression molding. The findings indicate successful dispersion and distribution of SCGs microfiller into PHBV. Chemical treatment of SCG microfiller enhanced the interfacial bonding between the SCG and PHBV, evidenced by higher water contact angles of the biopolymer composites. Field Emission Scanning Electron Microscopy (FE-SEM) confirmed the successful interaction of treated SCG microfiller, contributing to enhanced mechanical characteristics. A two-way ANOVA was conducted for statistical analysis. Mass losses observed after burying the materials in natural soil indicated that the composites degraded faster than the pure PHBV polymer suggesting that both composites are biodegradable, particularly at high levels of spent coffee grounds (SCG). Despite the possibility of agglomeration at higher concentrations, SCG incorporation resulted in improved functional properties, positioning the green biopolymer composite as a promising material for sustainable packaging and diverse applications.

Keywords: Biofiller; Biopolymer composites; Compatibility; Biodegradability; Sustainable packaging






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