Examination of water uptake performance and mechanical properties of PLA/flax fiber biocomposites with the coupling agent
محل انتشار: فصلنامه سنتز و تفجوشی، دوره: 2، شماره: 2
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 90
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شناسه ملی سند علمی:
JR_SYNSINT-2-2_003
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
The paper reports, the effect of water sorption on the microstructural and flexural properties of the flax fiber/ polylactic acid (PLA) biocomposites compared to the composites with maleic anhydride (MAH) as coupling agents and alkali treatment. In the current study, five different biocomposites which are ۱۵ % wt. flax/PLA, ۲۵ % wt. flax/PLA as control group and۱۵ % wt. flax/PLA, ۲۵ % wt. flax /PLA, and ۳۵% wt. flax / PLA with ۵ % wt. MAH was produced. Ten different soaking times were studied to understand the water absorption behavior of the biocomposites. To investigate mechanical properties of the biocomposites impact test was applied on the dry and ۷۵۰ h, ۱۸۵۰ h water sorption composites. A three-point bending test was performed on the dry and ۱۸۵۰ h water sorption biocomposites to determine flexural properties. Short flax fiber-reinforced PLA matrix biocomposites were compounded using extrusion and manufactured by injection molding. Flax fiber surface was treated using sodium hydroxy solution to advance the interface interaction between fiber-matrix and surface performance of the fiber and matrix. According to the results, alkali treatment improved the water gain resistance of the composites since its enhancement of the interfacial bonding. Alkali-treated composites with maleic anhydride showed the better impact and flexural strength than composites without alkali-treated after ۱۸۵۰ h water sorption.
کلیدواژه ها:
نویسندگان
Ali Avci
Hakkari University, Department of Mechanical Engineering, Hakkari, Türkiye
Aysgul Akdogan Eker
Yildiz Technical University, Department of Mechanical Engineering, Istanbul, Türkiye
Mustafa Bakkal
Istanbul Technical University, Department of Mechanical Engineering, Istanbul, Türkiye
Mehmet Safa Bodur
Yeditepe University, Department of Materials Science and Nanotechnology Engineering, Istanbul, Türkiye