Nanometer glass thermal insulation coatings become the new favorite of coating industry

Energy conservation is a new topic in today's society. The proportion of building energy consumption to total social energy consumption is relatively high. It is known that China's new construction area is nearly 4.5 billion square meters each year, of which more than 99% are high-energy-consumption buildings, and the environmental protection and energy saving of buildings is extremely pressing. Doors and windows, especially glass, are the weakest parts of building energy loss. The area accounts for about 30% of the building area, and energy consumption accounts for 2/3 of the total energy consumption, which is the most important reason for building heating and cooling energy consumption.

In order to save energy, researchers have conducted extensive exploration and research. They have developed energy-saving glass products such as low-emissivity coated glass, solar control coated glass, glass film, heat-absorbing glass, insulating glass, and vacuum glass, but these products are often visible light-transparent. Low rates, complicated process conditions, and high prices limit the promotion. Transparent heat-insulation paint is a recently developed glass energy-saving paint that can well block infrared light while maintaining high visible light transmittance because of its environmental friendliness, good heat insulation effect, simple preparation process, and low cost For other reasons, it provides a new direction for glass insulation. In the field of architectural glass has got a good application prospects.

The new nano-glass heat-insulation coating can be coated with only a few micrometers of thickness, so that the temperature difference between indoor and outdoor can reach about 6 degrees Celsius, the infrared shielding rate can reach 70%, the visible light transmittance can reach 80%, and the UV-blocking can reach 99%, even if not Open air conditioning can also achieve the "cool in winter and cool in summer" effect.

Coating contrast test:

Two pieces of glass of 150mm × 100mm × 5mm, a piece of glass coated with ZS-311 transparent heat-insulation paint, and the other one is not painted and painted on one side. Two hollow boxes. thermometer. Exposure to the sun and testing the temperature inside the box at different times showed that:

In the comparative test of coated glass and blank glass, the temperature at the beginning of the test was increased in both cases. After 1 hour, the temperature gradually increased. In the whole process, the air temperature in the compartment of the paint was always lower than Brush the side temperature. When irradiated for 0.5h, the room temperature difference between the two compartments reached 5°C, and the temperature difference increased with time. After 12 hours, the air temperature difference was 7°C. It can be seen that ZS-311 Zhisheng transparent heat insulation coating has obvious heat insulation effect.

Coatings prospect market:

The penetration rate of transparent insulating coatings for architectural glass in China is currently less than 10%. According to the statistics of the Ministry of Construction and the China Building Materials Federation, the public building area in China is currently about 4.5 billion square meters, of which 99% are high-energy buildings. In the next few years, the country will comprehensively promote the promotion of energy-saving building materials, which will constitute a profit margin of at least 500 billion market.