6.5.2 THERMAL PROPERTIES

The biocomposite materials have wide engineering applications ranging from moist to dry atmosphere, from clean to dusty environment and from low to high tempera­ture, thus it becomes important for the noise control specialist to know the effect of temperature on the various physical and chemical properties of the biocomposite. Here some of the thermal properties of the jute-based biocomposite are presented.

6.5.2.1 THERMAL CONDUCTIVITY

The thermal conductivity of jute felt measured using the heat flow meter technique at the facilities of the Indian Institute of Technology Kharagpur as per ASTM C 518 is 0.064 W/m-K in the temperature range from 50°C to 80°C10. The thermal diffu — sivity of the jute felt measured using the laser flash technique as per ASTM E1461 standard was found to be 0.259 mm2/s11.