Carbon black/nickel hybrid filler reinforced conductive polypropylene composites
Abstract
In current study compatibilized polypropylene filled conductive composites were prepared by melt blending process. A hybrid filler combination at 0.6 to 5 wt% of carbon black and nickel at 50/50 (filler1/filler2) ratio were employed as conducting and reinforcing fillers for polypropylene. Based on quantity of polypropylene in composite, 5 wt% of polypropylene grafted maleic anhydride was utilized for compatibilizing the composite. Melt blending was carried out at 200 °C temperature and 45 rpm rotor speed in a laboratory scale internal mixer. Effect of carbon black and nickel flakes on mechanical, thermal and electrical properties were studied. Electrical conductivity increased with filler loading, whereas mechanical properties increased up to filler loading of 2 wt%. FTIR analysis revealed the presence of compatibilization between metallic fillers and polypropylene. Thermal properties remained unaffected by addition of fillers. SEM micrographs also showed uniform dispersion and distribution of metallic fillers due to better compatibilization provided by polypropylene grafted maleic anhydride.
- Publication:
-
Materials Research Express
- Pub Date:
- August 2019
- DOI:
- 10.1088/2053-1591/ab1a5d
- Bibcode:
- 2019MRE.....6h5343G
- Keywords:
-
- conductive composites;
- dispersion;
- hybrid fillers;
- carbon black;
- compatibilization;
- thermoplastic