Cellulose-PEG grafts from cotton waste in thermo-regulating textiles


KURU A., Aksoy S.

TEXTILE RESEARCH JOURNAL, vol.84, no.4, pp.337-346, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1177/0040517513494251
  • Title of Journal : TEXTILE RESEARCH JOURNAL
  • Page Numbers: pp.337-346
  • Keywords: cellulose-PEG graft, phase-change material, waste cotton, thermal history, heat storage, thermoregulation, PHASE-CHANGE MATERIALS, ENERGY-STORAGE, HOLLOW FIBERS, POLYURETHANE, COPOLYMERS, TRANSITION, GLYCOL

Abstract

This study focused on the production of heat storage materials from cotton wastes by incorporating a phase-change material and determination of their thermo-regulating properties. Polyethylene glycol (PEG) was grafted onto a cellulosic cotton backbone to give solid-solid phase change properties. The change in the surface morphology of the fibers was studied by scanning electron microscopy. Chemical characterization of the fibers was carried out using Fourier-transform infrared radiation spectroscopy. Thermal analysis of the modified fibers was performed by differential scanning calorimetry, and the thermal regulating properties of the PEG-grafted fibers were investigated using a thermal history system comprising insulated boxes, temperature sensors and a data-logger. Static thermal insulation measurements were also carried out on the fibers. The PEG-grafted cellulose fibers were shown to absorb up to 33.8J/g heat at 33.0?, releasing 31.5J/g heat at 29.4?, during the phase transitions. Thermal history results showed that temperature of the box containing PEG1000-incorporated fiber differed by 1-1.5 +/- 0.1? from the temperature of the box containing untreated cotton fibers over 23-25 minutes. Based on these results it is concluded that PEG-grafted cellulose has sufficiently high energy storage properties to be employed as a thermo-regulating material.