Penelitian pengaruh bahan pengisi alumunimum silikat terhadap sofat fisis sol karet untuk sepatu kanvas

The objective of this research is to know the alumunium silicate as filter of the physical properties rubber sole for canvas shoes. Rubber sole compound for canvas shoes is made from natural rubber ( Pale crepe) with the addition of ingredient such as : softener, activator, filler, anti oxidant, accelerator and vulcanizing agent. It should be carried out using base formula by variying alumunium silicate 10; 15 and 20 parts. The it should be tested their physical properties, hardness, tensile strength, elongation at break, abrasion resistant, aging and flexing. The application alumunium silicate 20 parts will give the best compound with the tensile strength 245,03 Kg/Cm2, and elongation at break 813,30%.