Author(s)

Chaoyu Yang, Jingfu Wang and Ganqiang Wang

Corresponding Author

Jingfu Wang

ABSTRACT

In order to strengthen the utilization of boiler flue gas waste heat, an anticorrosive coating is applied to the heat exchange surface of ordinary metal heat exchangers. Graphene and boron nitride were added to the coating to enhance its thermal conductivity. The thermal conductivity of composite coating samples was studied, and the influence of sample forming pressure on thermal conductivity was studied. The results show that the organic silicon coating can work in an environment above 200℃,and the addition of graphene and boron nitride will enhance its heat resistance to a certain extent; the best experimental effect is when the molding pressure of the sample is 20KN; Both graphene and boron nitride will enhance the thermal conductivity of the coating, and the effect of graphene is better than boron nitride.

KEYWORDS

Thermal conductivity, heat resistance, organosilicon coating, molding pressure, waste heat utilization