Penelitian pengaruh variasi China clay dan napthenoc oil terhadap kekerasan dan ketahanan sobek kompon karet untuk lis pintu almari es

The aim of this research is to know influence of naphthenic oil and filler china clay to the physical properties of hardness and tear resistant rubber compound for refrigerator gasket. It makes from natural rubber (pale crepe) and synthetic rubber (SBR 1502) as material with addition ingredients are china clay, stearic, guanidine, naphthenic oil, paraffin wax, coumarone resin, zink okside, stearic acid, guanidine, sulfonamide, ASOP, titan diokside, brown factice and sulphur. Rubber compound for refrigerator gasket, formed to slab by hydraulic press at 150C and 150 kg/cm2. Than tasted hardness and tear resistant. The result of this research indicated naphthenic oil and filler china clay variation are high significant to hardness and tear resistant properties of rubber compound for refrigerator gasket.