Development of thermo-regulating fabrics using PCM microcapsules with poly(methyl methacrylate-co-2-hydroxy ethyl methacrylate) shell and n-alkane core. Issue 1 (19th November 2018)

• Record Type: Journal Article
• Authors: Altun-Anayurt, Ruhan; Alay-Aksoy, Sennur; Alkan, Cemil; Demirbag, Sena; Tözüm, M. Selda
• Is Part Of: International journal of clothing science and technology. Volume 31:Issue 1(2019)
• Page Start: 65
• Page End: 79
• Publication Date: 2018-11-19
• Subjects: Cotton fabric -- Microcapsules -- Phase change materials -- Thermo-regulating -- Wool fabric; Clothing and dress -- Periodicals; Textile fabrics -- Periodicals; 677
• DOI: 10.1108/IJCST-09-2017-0145
• Languages: English
• ISSNs: 0955-6222

Abstract

Abstract : Purpose: The purpose of this paper is to prepare microencapsulated phase change materials (PCMs) and apply them to cotton and wool fabrics for developing thermo-regulating fabrics. Design/methodology/approach: Microencapsulated n -hexadecane and n -octadecane with poly(methylmethacrylate-co-2-hydroxy ethyl methacrylate) shell was prepared. Microcapsules were fabricated using oil-in-water emulsion polymerization method. Their chemical structure, microstructure, thermal energy storage properties and thermal stability were analyzed by Fourier-transform infrared spectroscopy, polarized light microscope, differential scanning calorimeter and thermogravimetric analyzer, respectively. The mean particle size was tested by a particle sized instrument. The microcapsules were applied to the wool and cotton fabrics using pad-dry-cure method. The thermo-regulating property of the fabrics was evaluated using the T-History test. The distribution and durability of the microcapsules on the fabrics was investigated with scanning electron microscopy. Findings: Spherical microcapsules with p(MMA-co-HEMA) shell and n -alkane core have been produced successfully. n -hexadecane in microcapsule solidifies at 14.8−15.6°C with the latent heat of 65.6−129.8 J/g and melts at 16.7−16.9°C with the latent heat of 67.6−136.9 J/g. Microencapsulated n -octadecane solidifies at 25.8−26.3°C with the latent heat of 74.1−106.2 J/g and melts at 26.8−27.4°C with the latent heat of 80.3−113.4 J/g. The microcapsules have enough thermal stability to the temperature of 150°C that was applied during the fixation of microcapsules on the fabric. The thermo-regulating effect of the microcapsule-incorporated fabrics has been proved by the T-history test. Originality/value: PCM microcapsules with p(MMA-co-HEMA) shell and n -hexadecane and n -octadecane core have been produced and their usage to produce thermo-regulating textiles have been proved. To determine the thermo-regulating property of the fabrics treated with these new PCM microcapsules, a T-History system has been designed.