Penggunaan Crude Palm Oil (CPO) sebagai Bahan Pelunak (FACTICE) dalam Pembuatan Kompon Karet Gelang

摘要

The research aimed to obtain the influence of utilizing crude palm oil as a factice for compound of rubber band, and also to find out the best rubber compound for rubber formula which fulfill the quality specification.The factice type used was crude palm oil (CPO) and the filler was silica with variations were formula 1 (Brown factice 30 g, without CPO and silica 60 g) as control, formula 2 (without CPO and silica 60 g), formula 3 (CPO 30 g and silica 60 g), formula 4 (CPO 60 g and silica 120 g), and formula 5 (CPO 90 g and silica 180 g). The result showed that the addition of crude palm oil and silica had significant effect on the hardness, tensile strength, elongation at break and density. The best treatment was found in formula 3 (CPO 30 g and silica 60 g) with hardness value 33 shore A, tensile strength 253 kg/cm2, elongation at break 890% and density 0,933 g/cm3.