دراسة تاثير كلوريد النحاس المائي على التوصيلية الحرارية لبولي مثيل ميثاكريلايت عند درجات الحرارة العالية

In this work, we study the thermal conductivity of poly methyl methacrylate, include the behavior of thermal conductivity as a function of temperature at temperature range of ( 303-403 )oK and the effect of adding the dichloride copper on the conductivity. The specimens of polymer used were of a disc shape with a diameter of (3 cm), thickness of ( 0.25 cm ) and mass (2 gm). The thermal conductivity was measured from measure the rate of the heat flow through the specimen and the difference of the temperatures between the ends of the specimen. From the results, the poly methyl methacrylate has a low thermal conductivity and was increasing slightly with increasing temperature. Reaching a broad maximum at the glass transition temperature of a bout ( 378 oK ) and then decreasing with increasing the temperature. In addition, thermal conductivity was increasing with adding the dichloride copper (5-10 )% to the polymer studied.