Application of kulkote temperature regulating phase change material on merino wool fiber and pashmina wool felt material

Ramesh Keralapura Parthasarathy,Gurumurthy B Ramaiah

doi:10.1088/1757-899x/577/1/012114

Abstract

Heat transfer and storage is one of the important thermal property that substantially varies due to the nature of scaled fibers coupled with layering technique applied while designing a winter garment. The presence of scales is not evenly distributed in size and numbers over the fiber surface resulting in uneven heat flow or trapping heat released from the body. In this study the SEM images of fibers are used to characterize scale configurations, geometry, dimensions, orientation and shape of scales of merino wool, pashmina and angora fibers. However, to improve the heat retention and lower the heat flow from the fibers, kulkote phase change material is applied by spray method on the fiber felts and evaluated for its thermal properties using DSC thermograms. DSC thermograms shows the thermal behaviour of fibers before and after treating with phase change material, hence justifying the effectiveness in controlling flow of heat resulting in construction of superior winter wear products

Highlights

Thermal Properties is one of the vital skin related properties which significantly influences the comfort level of the wearer
Differential Scanning Calorimetry (DSC) thermograms shows the thermal behaviour of fibers before and after treating with phase change material, justifying the effectiveness in controlling flow of heat resulting in construction of superior winter wear products
Observing the images clearly shows the coverage of kulkote phase change material bonding the fiber surface and forming film like layer randomly, resulting in locking airspace between the felted fibers

Summary

Introduction

Thermal Properties is one of the vital skin related properties which significantly influences the comfort level of the wearer. 3.1 Application of Phase change materials in Textiles Phase change materials are used in textiles have their melting point temperature ranges that is near to skin temperature and can be incorporated within fibers or foams or may be coated onto fabrics or felts, in the form of microcapsules to store and release body heat when needed. They are mainly applied to conditions reduce sweat loss due to heat. DSC generates quantitative information of phase change materials which can be used for comparison with other materials tested under similar application conditions [13]

Methods

Results and Discussion

10 Conclusion