Abstract:

In order to prepare the composite fabric for light-weight low temperature protective glovesusing the phase change microcapsules (MEPCM), a kind of phase change microcapsule based on n-octadecane as core and melamine-urea-formaldehyde as shell was synthesized by in-situ polymerization method, and then the microcapsules were coated to weft knitted fabric’s surface by transfer coating technique. The influences of the MEPCM mass fraction and coating thickness on the properties of the compound fabric were discussed, and the dispersion of MEPCM, heat storage and low temperature resistance performance of the compound fabric was tested and analyzed. The results shows that the optimal preparation process of the composite fabrics is that the coating thickness is 1.1 mm and the mass fracton of MEPCM, water and adhesive are 40%, 10% and 50%, respectively, and the time that the initial temperature of the internal environment drops to 0 °C of the composite fabric in the environment of -40℃ and -80℃ are 397 s and 206 s. The compound fabric can meet the needs of short-time low temperature operation and bring a certain degree of protection.

Key words: protective glove, phase change microcatsule, composite fabric, transfer coating technique, low temperature protection