Preparation And Properties Of High Temperature Infrared Radiation Paint

Infrared radiation coating as new energy-saving material for industrial furnace has a strong vitality and broad prospects, it not only has a good energy saving effect but also can protect the matrix material. Traditional infrared radiation coating will have such problems with the increasing temperature, performance attenuated seriously, life is short, and the coating is prone to fall off and fracture. To improve the performance of the high temperature IR coatings, in this study, a mixture of micro-silica and a variety of transition metal oxides is prepared as the base material. At the same time, Recycling Comprehensive Utilization of micro-silica is sloved. The depth research on micro-silica promptes application prospects and market development.This paper described the development and application of high-temperature infrared radiation coating, and the mechanism of preparation of coatings, etc. It also described experimental materials and equipment, preparation and testing methods, etc, also explored and identified the impact of performance coatings and coating process conditions.In the design of experiments, we through full-wavelength infrared radiation rate, the thermal stability and thermal shock resistance to determine the extent and the formulation of the optimization of process parameters. The main factors that affect the rate of infrared radiation contain:structure and properties of materials, coating preparation process (including sintering temperature, heating rate, holding time, coating thickness, etc.), thermal processes and environmental conditions, etc. Through a large number of experimental studies, selected the best grinding dispersing agent, carrier binder and best ratio of ingredients, also discussed and identified the preparation parameters of paints and coatings.The research shows that the greatest impact on the coating process was sintering temperature and holding time. The experimental study found that the radiation rate was increased at 1400℃(holding 2h); After the coating Preparaed, the full wavelength infrared radiation rate was 0.91, when the trial temperature is set to 1400℃, trial time was 24h. Detected by XRD and found that generated a lot of microcrystalline material and crystal materials, crystal type of change was the important reason to ensure high infrared radiation rate, good thermal stability and thermal shock resistance.The mechanism of the infrared radiation and the main factors which affect radiation heat transfer were also discussed in the paper, and it will be the basis of the followed-up research.