Sifat mekanik dan morfologi termoplastik elastomer (TPE) hasil polipaduan NBR/PVC dan maleat anhidrat

The research of thermoplastic elastomer NBR/ PVC and maleic anhydride (MAH) aims to determine the effect of maleic anhydride (MAH) as compatiblizer on the mechanical properties and morphology of thermoplastic elastomer NBR / PVC. Mixing between the NBR and PVC performed using a two roll mill with a temperature range of 60-80 º C, the vulcanization process using a hydraulic press at a temperature of 170 º C, pressure of 150 kg/cm2. Composition of the NBR / PVC successively varied: 90/10: 85/15 /: 80/20: 75/25: 70/30 and 65/35, being the amount of maleic anhydride (MAH) as compatibilizer used are 4 and 5 phr. Mechanical properties were evaluated including tensile strength, elongation at break, hardness and compression set according to ASTM procedure.Thermal treatments were performed by means of thermogravimetry (TG) and morphology of the blend by scanning electron mycroscopy (SEM). Test results showed that MAH compatibilizer be able to improve the mechanical properties of tensile strength and elongation, and compresion set. Morphological observation by SEM showed that the addition of MAH causes more homogeneous mixture. Thermal analysis by TG appears that the melting temperature of the mixture was 252 º C.