Natural Zeolite Modification With A Surfactant Cetyl Trimethyl Ammonium Bromide (Ctab) As Material To Filler In Polypropylene

Abstract

Research purposes to determine the characteristics of the modification of natural zeolite (synthesis CTAB) and particle size, microstructure, as well as determine the effect of modification of natural zeolite as filler on the properties of thermoplastic polypropylene thermal and mechanical properties. Composite manufacture begins with a filler material synthesis of natural zeolite with CTAB. Results of modified zeolite is used as filler in polypropylene matrix mixed in an internal mixer with a temperature of 180 ⁰C for 9 minutes at a mixing rate of 50 rpm. Results of the internal mixer is done printing the sample with hot and cold press and the result is a sample of the resulting sheet characterized the mechanical and thermal properties. Results obtained before the modification of natural zeolite particle size 74 µm, after modification with CTAB particle size to 1 µm. Morphology seen the cavities according to the characteristics of natural zeolite. By increasing CTAB zeolite composition on the polypropylene matrix resulted in decreased tensile strength and elongation at break, but Young's modulus increases. From the thermal analysis that the composite lost more than 3 % of its mass under heating to 447.17°C which is considered enough to deduce that it can absorb significant amounts of water. An increase in the decomposition temperature after the addition of modified zeolite with CTAB.

Keywords: Zeolite, CTAB, PP, Analysis, mechanical, thermal