TY - JOUR
T1 - Effect of Thermal Barrier on Thermal Protective Performance of Firefighter Garments
JO - Journal of Fiber Bioengineering and Informatics
VL - 3
SP - 245
EP - 252
PY - 2011
DA - 2011/04
SN - 4
DO - http://doi.org/10.3993/jfbi09201104
UR - https://global-sci.org/intro/article_detail/jfbi/4920.html
KW - Aerogels
KW - Thermal Protective Performance
KW - Firefighter Clothing
KW - Flash Fire Mannequin
KW - Multi-thermal Barrier
AB - For firefighter protective clothing, thermal protective performance is of primary importance. In this
regard, the effects of thermal barrier construction on the level of thermal protection were investigated.
In this study, needle punched nonwovens of varying thicknesses for application as thermal barrier were
prepared from 100% meta-aramid, 100% wool, and 90% meta-aramid/10% para-aramid fibers. The
effect of the number of layers in multilayer thermal barriers prepared from these nonwovens and the
effect of spacers on the thermal protective performance were examined. The possibility of incorporation
of aerogels into the thermal barrier to enhance the protective performance was examined. The needle
punched nonwovens were padded with 5 wt% aerogels dispersion in acetone. The differences in thermal
protective performance of nonwovens were evaluated by heat transmission on exposure to flame, heat
transmission on exposure to radiant heat and heat transmission on exposure to both flame and radiant
heat methods. Multi layer constructions with spacers and nonwovens treated with aerogels exhibited
higher thermal protective performance.