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Does the greenhouse glass have diffuse reflection

Aug 10, 2021

Agriculture has been gradually replaced by glass greenhouses from the beginning of thin film greenhouses, and the construction of glass greenhouses is becoming more and more standardized. In recent years, with the increase in scale, the quality of glass greenhouses has become higher and higher, and the owners' requirements for greenhouse profiles are also increasing. Greenhouse glass includes diffuse reflection glass, and some special glass for greenhouses has diffuse reflection function.

The diffuse reflection glass of the greenhouse has also begun to enter the vision of greenhouse investors. The glass greenhouse has begun to change from the original ordinary float glass to ultra-white glass, and then to the use of diffuse glass and diffuse reflection glass.

Urban green diffuse reflection glass greenhouse

Let me first talk about how diffuse reflection glass comes from?

Diffuse reflection glass is proposed by domestic greenhouse construction experts, and the glass technology is imported from abroad, which is only suitable for the limited use of glass greenhouses. The foreign name is anti-reflective glass, because it conflicts with the name of domestic museum glass and electronic optical glass, so it is easier to recognize it as diffuse reflection glass.

The technical specifications of diffuse reflective glass are different from those of domestic anti-reflective glass. In terms of light transmission, diffuse reflective glass is more inclined to the blue and violet anti-reflection effects of plants, while domestic anti-reflective glass is more inclined to infrared light. (Different industries have not been researched).

In addition to the technical specifications of tempering, the technical specifications of haze and scattering are also quite different.

In order to adapt to the environmental climate of different regions, the greenhouse has a certain degree of haze on the glass design. The haze is inversely proportional to the transmittance of the glass hemisphere. The higher the hemisphere, the greater the glass haze.

There has always been a misunderstanding in greenhouse planting, thinking that the higher the light intensity, the better. In fact, there is a light saturation point for every kind of crop growth. When the light intensity exceeds the light saturation point, plants will not grow photosynthetically. The haze specification of diffuse reflection glass can just control the local temperature to just reach the light saturation point required by the crop. It is neither too high to stop photosynthesis nor too low to reach the light saturation point.

The scattering technical specifications of the diffuse reflection glass can ensure the uniformity of the light inside the greenhouse, allowing the sunlight to fully illuminate every corner of the greenhouse, and the scattering effect inside the densely planted greenhouse can better help the growth of the greenhouse plants.

50 haze diffuse reflection glass

At present, diffuse reflection glass is a relatively unpopular greenhouse material in China. Because the cost is higher, it is about 7-8 yuan more expensive than ordinary ultra-white tempered glass, so it is generally used in relatively large projects, experimental greenhouses, and seedling greenhouses. To increase the yield of greenhouse crops.

Compared with large glass greenhouses, small glass greenhouses should use diffuse reflection glass as the main cover glass of the greenhouse. In the greenhouse construction process, the glass profile only accounts for about 5% of the investment in the entire greenhouse, and the installation of diffuse reflection glass in a small greenhouse will have a better effect.

Because the application scene of diffuse reflection glass in greenhouses is relatively small, there are fewer professional domestic manufacturers, and the manufacturer with higher production capacity is Yuxin Longchang. If you have purchase requirements or technical requirements, you can directly consult the manufacturers.