To decrease the thermal conductivity of polytriazole‐based fiber reinforced composites, an organic–inorganic POSS/polytriazole hybrid resin was obtained. The influences of various proportions of POSS on thermal conductivity and the thermal properties of hybrid materials were emphatically investigated. The results show that POSS incorporation resulted in not only decreased thermal conductivity but also increased Tg and thermal decomposition temperature. The enhancement was ascribed to the nanoscale effect of POSS structure and the fact that the POSS framework has a high heat resistance property. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41967.

This study aimed to investigate the thermal responses of acclimated workers exposed to heat stress in a real work environment. The physiological indices and subjective thermal perception of the 14 acclimated workers were measured in an industrial plant. The effects of wet bulb globe temperature (WBGT) on physiological indices and subjective thermal perception were studied. The differences in thermal responses between the acclimated workers and unacclimated college students exposed to heat stress were compared and analyzed. The relationship between the mean skin temperature and the thermal sensation was revealed. The results show that the mean skin temperature, oral temperature, and heart rate of the acclimated workers increase with WBGT, while the blood pressure decreases with WBGT. Compared with the unacclimated college students, the acclimated workers felt more comfortable and tolerant under the same heat stress. The thermal neutral mean skin temperature of the acclimated workers is 32.3 °C, which is approximately 1.0 °C lower than that of the unacclimated college students. The results of this study can help ensure the occupational safety and health of heat stress-exposed workers.

4,4 0 -Bis(azidomethyl)biphenyl (BAMBP) was employed to modify the polytriazole resin. The thermal properties and cure kinetics of the modified polytriazole resin were investigated using differential scanning calorimetry, dynamic mechanical analysis, and thermogravimetric analysis. Results indicate that BAMBP can promote the curing reaction and decrease the curing reaction temperature but cannot change the cure reaction mechanism. The highest glass transition temperature of modified polytriazole resin can be obtained with 5 wt% BAMBP at 213.2 C. Furthermore, the excellent solubility characteristics of BAMBP in polytriazole allows for fabricating T700 carbon fiber/polytriazole composites, which makes polytriazole one of the candidate resins cured at a lower temperature but used at a higher temperature.