Open AccessImpact of ultraviolet radiation on thermal protective performance and comfort properties of firefighter protective clothing
Author(s) -
Adnan Ahmad Mazari,
Funda Büyük Mazari,
Jawad Naeem,
Antonín Havelka,
PARASHANT MARAHATTA
Publication year - 2022
Publication title -
industria textilă
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 14
ISSN - 1222-5347
DOI - 10.35530/it.073.01.202116
Subject(s) - composite material , materials science , ultraviolet , ultimate tensile strength , air permeability specific surface , shell (structure) , radiation , ultraviolet radiation , moisture , layer (electronics) , chemistry , optics , radiochemistry , physics , optoelectronics
In this study, the impact of ultraviolet radiation is studied on thermal protective performance and clothing comfortproperties of firefighter protective clothing. Firefighter clothing assembly consists of the outer shell, moisture barrier andthermal barrier. In this research, two different outer shells were utilized. Outer shell O1 consists of inherently fire-retardant fibres mainly consisting of Conex (Nomex) and firefighter assembly having Conex as the outer shell was calledspecimen A. On the other hand, clothing arrangement which employed Proban coated outer layer (O2) was termed asspecimen B. Both specimens were evaluated for tensile testing, air permeability, radiant heat transmission machine,bending moment and water vapour resistance before and after exposure to ultraviolet radiation. The tensile strengthvalue of outer shell O2 was higher than that of O1 before and after exposure to UV radiation. Tensile strength values ofboth outer shells O1 and O2 decline after exposure to ultraviolet radiation. Air permeability values of both outer shell O1and O2 increase after being exposed to ultraviolet radiation. It was noted that specimen A has better thermal protectiveperformance as compared to specimen B, before and after exposure to UV radiation. Also, radiant heat transmissionindex RHTI 24 values were greater for specimen A as compared to specimen B, before and after exposure to UVradiation. Moreover, bending moment values for both outer shell O1 and O2 decline after being subjected to UVradiation. Furthermore, Water vapour resistance values of outer shell O1 and outer shell O2 enhance after exposure toultraviolet radiation.