PENGARUH CAMPURAN PLASTIK PVC, PET DAN SERAT SERABUT KELAPA TERHADAP KEKUATAN TARIK DAN MIKROSTRUKTUR

The use of plastic as a composite board is a way to overcome the problems that
exist in Indonesia due to the large amount of waste. Composite boards are a
combination of two or more materials, namely plastic and powder, with the basic
ingredients using plastic material. Therefore, plastic waste can be utilized as a
composite board material, for example, PVC (Polyvinyl chloride) plastic, PET
(Polypropylene Terephtalate) with added fiber from coconut fiber. In this study
the authors used a comparison of the three materials with a percentage of 25% -
35% PVC plastic, 45% -55% PET plastic, and 20% coconut fiber. Of these
percentages, the highest tensile test value was 460.85 N and the highest stress was
11.823 N/mm2 at the composition of 25% PVC plastic, 55% PET plastic and 20%
coconut fiber. Based on the results of the tensile test, a microstructure test was
carried out on the specimen. With the results of the mixture, judging from the
microstructure of the material, it is good, but there are still cavities and clumping
coconut fiber in the specimen. This happened because during the smelting process
the composition of the specimens had not been mixed evenly.