Potential Of Carbon Black Electrostatic Filler For The Automotive Paint Coating Application

Mohd Azril , Mohd Azli (2011) Potential Of Carbon Black Electrostatic Filler For The Automotive Paint Coating Application. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This research is to investigate the potential of carbon black filled coating for automotive paint coating industry. The effects of the optimum carbon black loading were studied as to establish the best formulation of the conductive paint coating. Carbon black (CB), polyester (PE), epoxy and the acetone were 4 major elements in the coating formulation. The components were mixed using mechanical stirring and thoroughly homogenized through ultra-sonication setup. The percentages of CB in paint coating were varied from 3, 5, 7, 9, 11, and 13 wt%. The paint coatings were coated onto aluminium sheet for further testing and analysis. Adhesion test, impact test and durometer test were performed on the paint to determine the mechanical properties of the fabricated polymeric based paint composites. It was followed by weathering test, water immersion test and resistivity test. Scanning Electron Microscopy (SEM) analysis was conducted as to investigate the morphological behaviour of the samples. The addition of carbon black to the painting formulation affected the major physical characteristic, mechanical properties, surface morphology and the conductivity of the sample. The increases of the carbon black loading resulted the decreasing on the mechanical properties of the coating sample which the impact behaviour, hardness behaviour and adhesion behaviour of the coating sample, dropped significantly with the increasing content of this filler adhesion. The conductivity of the paint increased as the CB loading increase. The archived conductivity was in the EMI region instead of the anti-static region as hypothesized.

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