Strength Properties of Composite Material Containing Phase Change Material

Abstract

In recent years, by a technological advance and a downsizing of the mobile device, increase of the heat value becomes the problem. Therefore, as one of the cooling methods, a method using the latent heat of phase change material (PCM) attracts attention. The composite between polyethylene having workability and PCM having heat storage property is manufactured. However, clarification of the mechanical properties of the composite is not enough. Therefore, in this study, the mechanical properties, in particular heat storage property, tensile strength and hardness are evaluated experimentally. Results are obtained as follows; The composites have heat storage properties in the melting point of the PCM. It is found that tensile strength, micro Vickers hardness and strain amount decrease with increasing MPCM weight content of the composite regardless of the type of MPCM. It is suggested that tensile strength and micro Vickers hardness are correlated with MPCMs, and tensile strength can be predicted from hardness. Compared with the polyethylene matrix, it becomes clear that the composite material is a brittle material.