Thermal properties of wool: thermal degradation studies and fire-retardant properties

Wool fibers have been used for the production of apparel and home textiles for decades. A few aspects of wool properties are hardly touched. The thermal properties of wool are no exception, while arguably have been impacted more than its final application. To explore the most prominent features of wool, this chapter sought to critically review and investigate the ultimate research outputs from a variety of perspectives. Hence then, the most influential parameters such as thermal insulation, thermal conductivity, thermal degradation, and the effect of chemical treatment on the thermal properties of wool are reviewed in detail. In addition, the use of wool fiber for its fire-retardant properties was discussed in its fundamental aspects. Moreover, the human psychological perception of the thermal comfort of wool fabric is explored. Furthermore, the thermal transition behavior of the fiber is highlighted. The output indicated that the aforementioned properties are the fundamental properties of wool fibers and must be taken into consideration when developing some application out of them.