Thermal and Physical Properties of Composite Material Reinforced with Flax Shive

Abstract

Currently, flax shive has a small number of applications. It primarily serves as fuel in the furniture industry and construction, with its volumes in enterprises measured in tons. The purpose of the study is to determine the fundamental thermal and physical properties of a silicone-based composite material reinforced with flax shive. The article delineates the thermal and physical properties of a composite material derived from silicone reinforced with flax shive. The material was fabricated through pressing. Samples of the material underwent thermal conductivity testing via the plate method. Based on the test results of the thermal conductivity coefficient of the composite material, a graph illustrating the dependence of the composite’s thermal conductivity on the mass of the constituent materials was constructed. A regression analysis was performed, statistically significant factors were identified and the regression equation of the material’s thermal conductivity coefficient was derived. The logarithmic dependence of the thermal conductivity coefficient of platinum-based silicone, possessing a Shore A hardness of 10, on the thickness was determined. Based on the calculation results, the density of the composite material samples was ascertained, and the regression equation of the sample density from the masses of the components incorporated in the composite material was derived. The thermal resistance, specific heat capacity and thermal conductivity coefficient of each group of samples were calculated. The study outcomes facilitate the calculation of the thermal and physical properties of a composite material with a varying component ratios. The study revealed that the material exhibits heat-insulating properties.

Keywords

• thermal conductivity
• thermal insulation properties
• thermal resistance
• composite material
• composite
• flax shive
• matrix
• filler
• specific heat capacity