Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 152, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2021.106715
Keywords
A; Biocomposites; B; Mechanical properties; D; Thermal analysis; E; Injection moulding
Funding
- Ministry of Science and Higher Education in Poland [0513/SBAD/4720, 0613/SBAD/4710]
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The study evaluated the reinforcing efficiency of a biocarbon filler in POM- and PA6-based biocomposites. Significant differences were found between PA6- and POM-based composites in terms of mechanical properties and fracture mechanisms. Water uptake tests confirmed the strong hygrophytic character of PA6-based composites.
Polyoxymethylene (POM)- and polyamide 6 (PA6)-based biocomposites were investigated in order to evaluate the reinforcing efficiency of a biocarbon filler (BioC). Both types of composites were prepared by melt-blending extrusion with 10, 20, and 30 wt% of BioC. Samples were prepared by the injection molding method and subjected to a detailed analysis consisting of mechanical and thermo-mechanical tests, thermal analysis, and microscopic observations. In order to evaluate the durability of the composite, accelerated thermal and hydrothermal tests were performed. The results reveal significant differences between PA6- and POM-based composites, both in terms of mechanical properties and fracture mechanisms. Water uptake tests confirmed the strong hygrophytic character of PA6-based composites; for the hydrophobic POM-based composites, the increased water uptake suggests strong moisture adsorption of the biocarbon. A heat aging test revealed that the exposure to elevated temperatures did not lead to a significant deterioration of properties for POM- and PA6based materials.
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