Improving the thermal insulation of polystyrene foams by the addition of carbon black

Abstract:

This paper presents an investigation on the improvement of the thermal conductivity of polystyrene foams by using different types of carbon blacks as additives. Carbon blacks with different morphologies were used as IRblockers. To test the changes in the conductivity foams with densities between 20 and 100 kg/m 3 were produced using the solid state foaming technique. The cellular structure and thermal conductivity were analyzed in detail. In addition the thermal conductivity was analytically modeled to study the influence of the different carbon black types on the heat flow by radiation. The best morphology to reduce the thermal conductivity has been detected.

Año de publicación:

2011

Keywords:

• Carbon black
• thermal conductivity
• Foam
• Polystyrene

Fuente:

scopus