Abstract
This study is carried out in order to determine the elastic properties of the Epoxy Resin (ER) / Polyethylene terephthalate (PET) Char Powder Composites by ultrasonic wave velocity measurement method. Plastic waste was recycled as raw material for the preparation of epoxy composite materials. The supplied chars were mixed with epoxy resin matrix at weight percentages of 10 %, 20 % and 30 % for preparing ER/PET Char Powder (PCP) composites. The effect of PET char powder on the elastic properties of ER/PCP composites were investigated by ultrasonic pulse-echo method. According to the obtained results, the composition ratio of 80:20 is the most appropriate composition ratio, which gave the highest elastic constants values for ER/PCP composites. On the other hand, the best electrical conductivity value was obtained for 70:30 composition ratio. It was observed that ultrasonic shear wave velocity correlated more perfectly than any other parameters with hardness. DOI: http://dx.doi.org/10.5755/j01.ms.22.4.12190
Highlights
Ultrasonic, which is a subcategory of acoustics, deals with acoustics beyond the audio limit (20 kHz)
The epoxy resin (ER)/Polyethylene terephthalate (PET) Char Powder (PCP) composite obtained was labelled as ER/PCP-1.This process was done for ER/PCP addition at 80:20 and 70:30 ratios as well
It was observed that ultrasonic shear wave velocity correlated more perfectly than any other parameters and could be used for hardness prediction with reasonable accuracy
Summary
Ultrasonic, which is a subcategory of acoustics, deals with acoustics beyond the audio limit (20 kHz). Ultrasonic measurements can be made on actual components without destroying the samples [1] Plastics offer features such as light weight, high strength, convenience, and low cost, making them attractive for businesses and consumers. Using the char of PET in epoxy resin can help to obtain new kind of conductive composite materials. In this case, the pyrolysis is considered to be an effective technology for recycling the PET wastes. There are limited studies related with usage of PET char with epoxy resin (ER) and ultrasonic characterisation of these materials. The present study aims to determine the elastic properties of Epoxy Resin (ER) / Polyethylene terephthalate (PET) Char Powder composites by ultrasonic wave velocity measurement method
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