Examination of the Coating Method in Transferring Phase-Changing Materials

Abstract

\n In this study, it is intended to identify the characteristics of heat regulation in heat storage microencapsulated fabrics and it is aimed to examine the effect of application method for microcapsules. For this purpose, phase-changing materials (PCM) microcapsules were applied according to the method of impregnation and coating on cotton fabrics. The presence and distribution of microcapsules on the fabric surface were investigated by scanning electron microscopy (SEM). The temperature regulation of the fabrics was examined utilizing the temperature measurement sensor and the data recorder system (Thermal camera). According to the DSC analysis, the melting process in fabrics coated with Mikrathermic P microcapsules occurred between 25.83oC - 31.04oC and the amount of heat energy stored by the cotton fabric during the melting period was measured as 2.70 J/g. Changes in fabric surface temperature due to the presence of microcapsules in the fabric structure were determined in the measurements. When comparing the transfer methods of PCM capsules, the contact angle of impregnated and coated fabric was obtained as 42o and 73o, respectively. As a result of the study, when the analysis results of the microcapsules transferred to the fabric by the impregnation and coating method are evaluated, it is seen that the PCM transferred fabric with the impregnation method performs more efficient temperature regulation. However, the analysis results show that fabrics transferred with PCM by coating also perform heat absorption, although not as much as the impregnation method. Performance evaluation according to the target properties of textile material will give the most accurate result for the fabrics which are treated by coating and impregnation method.\n