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Evaluation of EPDM waste in environmentally friendly epoxy hybrid composites
Melisa Temiz,Suheyla Kocaman,Gulnare Ahmetli 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.126 No.-
This study aims to reduce the production cost of composite materials, obtain composite materials withimproved properties, and expand the applications of waste rubber composites using two different industrialwastes, ethylene-propylene-diene monomer rubber (EPDM) and tire waste pyrolysis solid productcarbon black (CB). Composites were formed by adding EPDM waste or EPDM-CB mixture at 1:1, 1:3,and 3:1 ratios to bisphenol-A type epoxy resin in different weight ratios. Mechanical, water sorption,electrical conductivity, and flammability tests were applied to the composites. The effect of the EPDM:CB ratio and some environmental conditions on the mechanical properties of the hybrid composites wereinvestigated. Composites with 3:1 weight ratio of EPDM:CB had the highest tensile strength, which variedbetween 115.5–158.6 MPa. Increasing the EPDM ratio in an epoxy matrix and hybrid filler decreased thecomposites’ density and tensile strength. EPDM-CB hybrid filler increased the thermal strength of epoxy. Mechanical properties are affected by water sorption, low temperature, and UV irradiation. Increasing theCB ratio in the hybrid filler decreased the flammability of the hybrid composites. ANOVA is applied to findthe significant effect of different weight percentages of hybrid fillers and different varieties of fillers onthe mechanical properties of composites.