Carbon-Polyol Coating Using Carbon Produced From Palm Kernel Cake (PKC)

Abstract

In our quest to create awareness in using renewable, sustainable natural resources and efficient waste management, palm kernel cake (PKC) which is the waste from the palm industries was used in preparation of Carbon-polyol coating. PKC was subjected to pyrolisis process and the carbon residue obtained was used as a black pigment. In this work modified Polyol was used as the binder for its ideal properties as vehicle to produce good opacity of paint. Various carbon-polyol dispersant with different weight compositions (wt%) of carbon prepared and tested against its respective rheological properties in order to determine ideal paint/ink system. Two different types of paper material (Brown paper B and white paper W) were chosen as a substrate and characterised. Each of the paper was then proofed with Carbon-polyol using palm kernel carbon (PKC) and commercial carbon (PURE_C). Lightfastness test was carried out on the paper specimens and the results on the total colour difference (dE) are obtained. It was found that the total colour change (dE) in specimens using brown paper (B) coated with Carbon polyol coating using carbon derived from palm kernel carbon (PKC_B) and the commercial carbon (PURE_C_B) is within 10%. The other two specimens, using white paper (PKC_W and PURE_C_W), the total colour change (dE) is 17%. It is expected that the coating system has the potential application in paint or ink.
Key words: Carbon-Polyol; Palm Kernal Cake (PKC); Colourant; Lightfast; Coating