Автор |
Young Moo Lee |
Автор |
Barker, Roger, L. |
Дата выпуска |
1986 |
dc.description |
The effect of fabric moisture on thermal insulation properties of twelve heat resistant fabrics made with polybenzimidazole (PBI), aromatic polyamide (aramid) and blends of PBI with aramid or with flame retardant rayon fibers is investigated in several high intensity radiant and convective heat exposures. Three fabric preparations were evaluated: oven dry samples, samples condi tioned in a standard atmosphere (65% R.H., 21 ° C) and samples soaked with liquid water. This research shows that moisture enhances the thermal in sulation of all single layer protective fabrics evaluated against 2.0 cal/cm<sup>2</sup> ·sec mixed convective exposure and against 0.48 cal/cm<sup>2</sup> · sec radiant energy expo sure. Moisture hurts the thermal protective performance (TPP) of the same fabrics in high intensity radiant tests (i.e., 2.0 cal/cm<sup>2</sup> · sec, 100% radiant heat). The mechanisms by which moisture acts to change the TPP of a fabric is discussed in light of fabric heating rates. |
Издатель |
Sage Publications |
Тема |
Protective fabrics |
Тема |
heat-resistant fabrics |
Тема |
heat-transfer |
Тема |
measure ment of heat transfer |
Тема |
thermal protection |
Тема |
protective clothing |
Тема |
moisture in tex tiles |
Тема |
PBI |
Тема |
aramid fibers. |
Название |
Effect of Moisture on the Thermal Protective Performance of Heat-Resistant Fabrics |
Тип |
Journal Article |
DOI |
10.1177/073490418600400502 |
Print ISSN |
0734-9041 |
Журнал |
Journal of Fire Sciences |
Том |
4 |
Первая страница |
315 |
Последняя страница |
331 |
Аффилиация |
Young Moo Lee, Department of Textile Engineering and Science School of Textiles North Carolina State University Raleigh, NC 27695-8301 |
Аффилиация |
Barker, Roger, L., Department of Textile Engineering and Science School of Textiles North Carolina State University Raleigh, NC 27695-8301 |
Выпуск |
5 |
Библиографическая ссылка |
Holcome, B.V. , "The Heat Related Properties of Protective Clothing Fabrics," Fire Safety J., Vol. 6, p. 129 (1983 ). |
Библиографическая ссылка |
Coletta, G.C. et al. , "The Development of Criteria for Firefighters' Gloves," NIOSH 77-134-13, U.S. Department of Health, Education and Welfare (February 1976). |
Библиографическая ссылка |
Stamper, S.K., "Measuring the Thermal Protective Performance of Fabrics in Hot Surface Contact," M.S. Thesis, School of Textiles, NCSU (December 1983). |
Библиографическая ссылка |
Holcombe, B.V. , "The Evaluation of Protective Clothing," Fire Safety J., Vol. 4, p. 91 (1981). |
Библиографическая ссылка |
Chen, N.Y., "Transient Heat and Moisture Transfer Through Thermally Irradiated Cloth;' Ph.D. Thesis in Chem. Eng., MIT, Cambridge, MA (1959). |
Библиографическая ссылка |
Morse, H.L. et al., "Analysis of the Thermal Response of Protective Fabrics,"Technical Report, AFML-TR-73-17, Air Force Materials Laboratory , NTIS-AD-759 525 (1973). |
Библиографическая ссылка |
Perkins, R.M. , "Insulative Values of Single-Layer Fabrics for Thermal Protective Clothing," Textile Res. J., Vol. 49, No. 4, p. 202 (1979). |
Библиографическая ссылка |
Lee, Young M., "Analysis of Thermal Protective Performance of Heat Resistant Polymeric Fabrics," Ph.D. Dissertation, North Carolina State University , Raleigh, NC (1985). |
Библиографическая ссылка |
Stoll, A.M. and Chianta, M.A., "Method and Rating System for Evaluation of Thermal Protection," Aerospace Medicine, Vol. 40, No. 11, pp. 1232-1238 (1969). |