Analisis Pengaruh Temperature Treatment Terhadap Kekuatan Tarik Komposit Plafon Rumput Payung (Cyperus Alternifolius) Matrix Epoxy

Abstract

Ceiling is a building construction material that requires special attention from the impact it causes. Umbrella grass fiber composite is one of the material innovations that can be offered as a solution to replace ceilings, because umbrella grass fiber composites contain materials that are renewable and more environmentally friendly. In an effort to increase the strength of composite materials, temperature treatment is a method that can be used to optimize material conditions. In this study, an analysis of the effect of temperature treatment was carried out on the tensile strength of umbrella grass fiber ceiling composites (Cyperus alternifolius) with an epoxy matrix. The variations given are without heating process, 90°C, 100°C and 110°C. The results showed that the temperature treatment had little effect on increasing the strength of the material. The minimum percentage shown is less than 10%, which is 7.704% for maximum load and 5.111% for tensile stress. The trendline of maximum load and tensile stress due to temperature treatment tends to decrease in strength. This is because the parasol grass composite cracks on the thickness side during the heating process, the pattern of cracks shown appears to be getting bigger as the temperature increases. However, the relationship between the stress and strain values ​​of the material at the temperature treatment variation obtained the best tensile test results at a temperature variation of 90˚C, with a stress value of 63.48 N/mm² and a strain value of 0.26 mm