Study on Material Properties of Protective Clothing in High Temperature Operation

Based on the mathematical physics method and the infinitesimal idea, the mathematical model of each layer material of protective clothing in high-temperature operation are derived using separation of variables and finite difference method. According to theoretical model and the literature data, we obtain the characteristic values of each layer of protective clothing and the relationship between the temperature of outside the skin and the time, the thickness. Finally, the material properties of different layers of protective clothing are simulated and fitted by MATLAB software. The results show that the temperature of each layer of high temperature protective clothing tends to be stable after a period of time, and finally close to a stable value. With the number of material layers increases, the temperature decreases, and the temperature sensed by the human body eventually tends to 46.91 ℃, which has dropped to a range of surface temperature that the human body can withstand (less than 47 ℃). It is proved that high-temperature protective clothing effectively reduces the temperature and plays a protective role.