The production of film from natural rubber mixed with ordor-reducing perlite

Abstract

The main objective of this research is to study the development of natural rubber (NR) film which mixed with perlite, the odor - reduction substances. Perlite was used in ratio 5, 10, 20 and 30 phr respectively. All of composite films were performed the sensory method to test the level of offensive odor according to standard method ASTM STP775, by semi-well trained persons. Mechanical testing, in terms of tensile strength, elongation at break and hardness, were investigated. Moreover, morphology was studied by the scanning electron microscope. The results from the odor evaluation showed that NR film mixed with 30 phr of perlite had the lowest level of offensive odor. In the other hand, the NR film mixed with 5 phr of perlite yielded the highest of tensile testing value. The NR film mixed with 10 phr of perlite gave the lowest elongation at break. From scanning electron micrographs, it is revealed the well dispersion of 5 phr and 10 phr of in the NR phase. The NR film mixed with 10 phr of perlite had the highest hardness; 44.0 for rubber side and 44.7 for perlite side.