Teuku Rihayat, S. Suryani, Z. Zaimahwati
Polyurethane is a very versatile polymer but it has poor thermal resistance and mechanical resistance. Thus, clay was added in the polyurethane and the thermal properties are determined by a bomb calorimeter. There were two type of clay used which are treated clay and untreated clay. Clay (treated and untreated) was added into polyurethane by Thermal Haaka by extrusion process. In the research, treated clay showed according to the references statement. Addition of 5wt% of treated clay reduced 85% of the heat combustion of the polyurethane while for untreated clay the reduced heat combustion is not too significant. This is because the sensitivity of the bomb calorimeter to the surface area that contacted to the ignition wire. Treated clay certainly can reduced the heat of combustion to 85% of polyurethane with additional of 5wt% of treated clay. © (2014) Trans Tech Publications, Switzerland.
Department of chemical engineering, PoliteknikNegeriLhokseumawe (State Polytechnic of Lhokseumawe), Lhokseumawe, Jl. Medan-Banda Aceh, Buket Rata, Indonesia; Department of Chemistry, University of Sumatera Utara, Medan 20155, Jl. Bioteknologi No. 1, Indonesia
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