Effect of phase change material content on properties of heat-storage and thermo-regulated fibres nonwoven

Abstract

The composition and properties of a series of sheath/core composite polypropylene fibres nonwovens with different phase change material (PCM) contents in the core have been studied using SEM, DSC and temperature sensors. It is observed that the PCM content in the fibre, sheath/core ratio and the content of 4-hole spiral crimp PET fibre affect the temperature regulating ability of the nonwoven. The temperature regulating ability has no truck with the fibre titer in the experimental scale. There can be a maximum temperature difference of 9.3°C between the nonwovens made from composites and control (polypropylene) fibres during temperature rising and 10.2°C between control and composite samples during temperature dropping.