TUZLU SUYA MARUZ KALAN NOMEX KUMAŞLARIN ISIL İLETKENLİĞİ VE DİRENCİ

Yıl 2014, Cilt: 24 Sayı: 2, 180 - 185, 01.12.2014

Monika Boguslawska –baczek Lubos Hes

Öz

THERMAL CONDUCTIVITY AND RESISTANCE OF NOMEX FABRICS EXPOSED TO SALTY WATER

Öz

The most important parameters characterizing thermophysiological comfort of clothing are thermal conductivity and thermal resistance. Protective and sport clothing is often used in wet state, which influences their comfort properties. Wet state of clothing can be caused due to the absorption of sweat or moisture from humid environment. This effect was particularly applies to people staying on the sea - sailors, seamen as well as marine soldiers. In this paper, Alambeta fast working PC controlled tester, was used for determination of thermal resistance and thermal conductivity of five different woven fabrics and one knitted fabric containing 93-100% of Nomex fibres, both in dry and wet state. Moreover, the effect of salinity of real sweat or sea water was simulated, by adding 1%, 2% and 3% of salt into the testing liquid (distilled water). As follows from the original results, even small content of the sodium chloride salt influences thermal comfort properties of the wetted fabrics

Anahtar Kelimeler

Thermal conductivity, Thermal resistance, Nomex fabric, Wet state, Salty water

Kaynakça

• 1. Hes L., Sluka, P., 2005, “Introduction into Clothing Comfort”, Textbook (in Czech), Technical University of Liberec,
• 2. Gibson, P. W., 1993, “Factors influencing steady-state heat and water-vapour transfer measure for clothing materials”, Textile Research Journal, Vol. 63, No.12 (199), pp.749-764, ISSN: 0040-5175
• 3. Hes L., 2007, “Thermal Comfort Properties of Textile Fabrics in Wet State”, Book of Proc. of Izmir International Textile and Apparel Symposium, Cesme (Turkey)
• 4. Bogusławska – Bączek M., Hes L., 2011, “The Effect of Moisture on Thermal Resistance and Water Vapour Permeability of Nomex Fabrics”, Journal of Materials Science and Engineering A Vol.1 pp. 358-366, ISSN 1934-8959
• 5. Bogusławska – Bączek M., Hes L., 2013, Effective Water Vapour Permeability of Wet Wool Fabric and Blended Fabrics, Fibres & Textiles in Eastern Europe, Vol. 21, 1(97): pp. 67-71, ISSN 1230-3666
• 6. Oğlakcioğlu N., Marmarali A., 2010, „Thermal Comfort Properties of Cotton Knitted Fabrics in Dry and Wet States”, TEKSTIL VE KONFEKSIYON, Vol. 3, pp. 213-217, ISSN: 1300-3356
• 7. Kolesnikova P. A., 1977, “Osnvy projektirovania tepłozaścitnoj odeży”, Legkaja Industria, Moskwa, (in Russian)
• 8. Patterson M. J., Galloway S.D.R., Nimmo M. A., 2011, “Variations in Regional Sweat Composition in Normal Human Males”, Experimental Physiology, Vol. 85 (6) pp. 870 -876, ISSN: 0958-0670
• 9. Lewis, E. L., 1982, "The Practical Salinity Scale of 1978 and Its Antecedents", Marine Geodesy, Vol. 5 (4), pp. 350.
• 10. Pinet, R., 1996, “Invitation to Oceanography”, St. Paul: West Publishing Company, ISBN 978-0-314-06339-7,
• 11. DuPoin Personal Protection. Aramid fibres – heat –resistant clothing, flame-resistant clothing, Available from www.dpp-europe.com/-Fibres,354- .html?lang=en#, Accessed: 2010-04-10
• 12. Hes, L., Loghin C., 2009, “Heat, Moisture and Air Transfer Properties of Selected Woven Fabrics in Wet State”, Journal of Fiber Bioengineering and Informatics, Vol. 2 (3), pp. 188-197, ISSN 1940-8676
• 13. Yusufova V. D., Pepinov R. I., Nikolaev V. A., Guseinov G. M., 1975, “Thermal conductivity of aqueous solutions of NaCl”, Journal of Engineering Physics and Thermophysics, Vol. 29, 4, pp. 1225-1229, ISSN: 1062-0125.