Microencapsulation technology was utilized in the early 1980s by the United State National Aeronautics and Space Administration (NASA) with the aim of managing the thermal barrier properties of space suits. The microcapsules have walls less than 1 μm thick and are typically 20 - 40 μm in diameter, with a Phase Change Material (PCM) loading of 80% - 85%. These containers release their core contents under controlled conditions to suit a specific purpose. The microcapsules are produced by depositing a thin polymer coating on small solid particles or liquid droplets, or on dispersions of solids in liquids. The small capsule size provides a relatively large surface area for heat transfer. The rate at which the PCM reacts to an external temperature change is very rapid. PCM microcapsules are being used to develop textile materials with higher thermal mass and PCM slurries with high heat storage and transfer properties. In this paper, Melamine–formaldehyde microcapsules containing eicosane were prepared by in situ polymerization. Knit fabrics made of polyester, were treated with phase change-material microcapsules by a pad–dry–cure method with a polyurethane binder. The treated fabrics were evaluated in terms of the thermal properties, moisture vapor permeability, moisture regain, air permeability, with respect to the add-on of microcapsules. The morphology and laundering properties of the treated fabrics were also evaluated.
Kazi Zakaria Ahmed
Fabric microencapsulation, PCM, Thermo-regulated fabric, Smart textiles
- Bryant, Y. Q., Colvin, D.P. 1992. Fibres with Enhanced, Reversible Thermal Energy Storage Properties. Techtextil-Symposium. 3: 1.
- Gharsallaoui A, Roudaut G, Chambin O, Voilley A, Saurel R. 2007. Applications of Spray Drying in Microencapsulation of Food Ingredients: An Overview. Food Research International. 40 (9): 1107-1121.
- Pause, B. H. 2003. Nonwoven Protective Garments with Thermo-Regulating Properties. Journal of Industrial Textiles. 33: 93.
- Shin, Y., Yoo, D. I., Jang, J. 2001. Molecular Weight Effect on Antimicrobial Activity of Chitosan Treated Cotton Fabrics. Journal of Applied Polymer Science. 80 (13): 2495.
- Colvin, D. P., Cartwright. 2000. D. K. U.S. Patent 6,057,266.
- Shin, Y., Yoo, D. I., Son, K. 2005. Development of thermoregulating textile materials with microencapsulated phase change materials (PCM). Preparation and application of PCM microcapsules. Journal of Applied Polymer Science. 96: 2005–2010.
- Ren, Y. J., Ruckman, J. E. 2004. Condensation in Three-layer Waterproof Breathable Fabrics for Clothing. International Journal of Clothing Science & Technology. 16 (3): 335.
- Kawabata, S. 1980. The Standardization and Analysis of Hand Evaluation (2nd edition). Textile Machinery Society of Japan: Osaka.
- Kim, J., Cho, G. 2002. Thermal Storage/Release, Durability, and Temperature Sensing Properties of Thermostatic Fabrics Treated with Octadecane Containing Microcapsules. Textile Research Journal. 72 (12): 1093.
- Cox, R. 1998. Synopsis of the new Thermal Regulating Fiber Outlast. Chemical Fibers International. 48 (6): 475.
- Colvin, D. P., Bryant, Y. G. 1998. Protective Clothing Containing Encapsulated Phase Change Materials. Advanced in Heat and Mass Transfer in Biotechnology. 362: 123.
- Ying, B. A., Kwok, Y. L., Li, Y., Zhu, Q. Y., & Yeung, C. Y. 2004. Assessing the Performance of Textiles Incorporating Phase Change Materials. Polymer Testing. 23 (5): 541-549.
- Hittle, D. C., Andre, T. L. 2002. A New Test Instrument and Procedure for Evaluation of Fabrics Containing Phase Change Material. ASHRAE Trans. 108: 175
- Pause, B. H. 2002. Driving More Comfortable with Phase Change Material. Technical Text. Intl. 11: 24–26.
- Pause, B.H. 1995. Development of Heat and Cold Membrae Structures with Phase Change Material. Journal of Coated Fabrics. 25 (7): 59-68.
- Suprun, N. 2003. Dynamics of Moisture Vapour andLiquid Water Transfer through Composite Textile Structures. International Journal Clothing Science & Technology. 15: 218.
- Steven C. Sherwood, Matthew Huber. 2010. An Adaptability Limit to Climate Change due to Heat Stress. The National Academy of Sciences. 107(21):9552-9555.
- Toita, B., Ono, H. 1979. Journal of Polymer Science Polymer Chemistry Edition. 17: 3205.
- Shin, Y., Yoo, D. I., Son, K. 2005. Development of Thermoregulating Textile Materials with Microencapsulated Phase Change Materials (PCM). IV. Performance Properties and Hand of Fabrics Treated with PCM Microcapsules. Journal of Applied Polymer Science. 97: 911.
|Published in :
||Volume 2 | Issue 6 | November-December - 2016
|Date of Publication
Cite This Article
Kazi Zakaria Ahmed, "Microencapsulation in Thermo-regulating Fabric: An Overview", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 2, Issue 6, pp.35-42, November-December-2016.
URL : http://ijsrset.com/IJSRSET162610.php