Carbonization of hot-pressed ARBOFORM ®-mixtures

Abstract

Porous carbon materials have a wide range of technical applications due to their properties including low density potential, mechanical capacity, resistance to heat and corrosion as well as electric conductivity.Organic materials like phenolic resins or polyacrylnitrile are typically employed as green body for carbon ceramics. However, wood and especially wood-based composites are also suitable as well as hot-pressed ARBOFORM ® -powder mixtures from lignin, wood meal and natural additives, which varied with regard to their lignin content as well as partly regarding their additive rates. The objective of the present study was to investigate the influence of some admixed additives of a commercially available wood based composite on carbonization results. The experiment was performed due to its more homogenous material properties in comparison to solid wood. Another aspect was the possibility of forming mixtures of ARBOFORM ® by extrusion or injection moulding. Such production processes are already state of the technology and therefore it could be possible to produce complex carbon-and ceramic templates which are difficult to realize by conventional processing methods. Concerning the thermoplastic process step of ARBOFORM ® there are further advantages compared with the used wood based panels. The samples were pyrolyzed in a nitrogen atmosphere at a temperature of up to 900 • C.

Antioxidant and antibacterial effects of natural phenolic compounds on green composite materials

“…The main uses for this material at present are as carcasses for electronic equipment (televisions, audio and video equipment), food industry components (containers, plates, cups, etc. ), and a line of furniture is currently being designed that has the appearance of wood but which has lower production costs and produces less waste material than wood due to the degradability of coconut fiber [6,7].…”