Development of thermal stable multifilament yarn containing micro-encapsulated phase change materials

Phase change materials are used for the development of thermo-regulating textiles to give thermal equilibrium to the accustomed textiles for changing climates. Phase change materials having their melting point near the skin temperature are found to be useful for textiles in which n-octadecane is widely used. This paper reports the development of multifilament polypropylene yarn containing Microencapsulated Phase Change Materials (MPCM) developed and manufactured by a new designed spinneret die with 7 holes. SEM and DSC have been used to examine the morphology and the latent heat of multifilament Polypropylene yarn containing up to 8% of MPCM. The effect of processing parameters on mechanical properties of yarn with respect to amount of MPCM has been discussed.