Comparison of Effects of Plasma Surface Modifications of Bamboo and Hemp Fibers on Mechanical Properties of Fiber-Reinforced Epoxy Composites.

Autor: Rachtanapun P; Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.; Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand.; Center of Excellence in Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand., Sawangrat C; Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand., Kanthiya T; Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand., Kaewpai K; Science and Technology Park (STeP), Chiang Mai University, Chiang Mai 50100, Thailand., Thipchai P; Nanoscience and Nanotechnology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand., Tanadchangsaeng N; College of Biomedical Engineering, Rangsit University, Pathumthani 12000, Thailand., Worajittiphon P; Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand.; Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand., Suhr J; School of Mechanical Engineering, Sungkyunkwan University, Suwon-si 16419, Republic of Korea., Wattanachai P; Department of Civil Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand., Jantanasakulwong K; Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.; Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand.; Center of Excellence in Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.
Jazyk: angličtina
Zdroj: Polymers [Polymers (Basel)] 2024 Nov 30; Vol. 16 (23). Date of Electronic Publication: 2024 Nov 30.
DOI: 10.3390/polym16233394
Abstrakt: In this study, we investigated the behaviors of epoxy composites reinforced with bamboo (BF) and hemp (HF) fibers. Both fibers were treated using dielectric barrier discharge (DBD) plasma for various durations (2.5 to 20 min). Epoxy resin (ER) was mixed with BF or HF with and without plasma treatment. The Fourier-transform infrared spectra of the plasma-treated fibers showed an enhanced peak intensity of carboxyl groups. ER/BF treated for 20 min exhibited a high tensile strength (up to 56.5 MPa), while ER/HF treated for 20 min exhibited a more significant increase in elongation at break (6.4%). Flexural tests indicated that the plasma treatment significantly improved the flexural strength of the hemp composites (up to 62.2 MPa) compared to the bamboo composites. The plasma treatment increased the fiber surface roughness and interfacial bonding in both composites. The thermal stability and wettability were improved by the DBD plasma treatment. The DBD plasma treatment enhanced the interfacial adhesion between fibers and ER matrix, which improved the mechanical, thermal, and wettability properties of the composites.
Databáze: MEDLINE
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