Heat Capacity and Thermal Conductivity of a Composite Material from Thermoplastic Prepreg

A comparative analysis has been made of the thermophysical properties of consolidated plates fabricated from a thermoplastic composite material based on a unidirectional carbon tape and polyphenyl sulfide by the method of hot pressing and automated tape laying by layer-by-layer laser deposition welding using a robot manipulator. The obtained experimental values of thermal conductivity and heat capacity of these plates agree with a high degree of accuracy with the values of these parameters obtained according to the proposed computational model. The expediency of fabricating high-precision elements by the method of layer-by-layer laser deposition welding has been substantiated. Investigations were carried out with laser-flash and differential-scanning-calorimetry methods.