infrared reflective coatings;  thermal insulation;  nano powder;  Glass

The nano-inorganic composite powder was dispersed in acrylic resin to prepare infrared reflective coating with thermal insulation, and coated on the glass substrate, and the thermal insulation effect was detected by a self-made detection device. Several main factors such as coating film thickness, nanocomposite powder addition and dosage were investigated on the thermal insulation performance of coatings. The results show that the addition of nano-powder plays an important role in the heat insulation of the coating, and the coating prepared after adding the powder has obvious thermal insulation effect, and the heat insulation effect is enhanced with the increase of powder addition within the scope of experimental research. Simulation experiments show that the heat insulation coating can reduce the indoor temperature by 9°C compared with ordinary coatings.