Distinguish the quality of agricultural film in Sichuan vegetable greenhouses
Agricultural film is one of the indispensable products in the construction of Chengdu vegetable greenhouses. It plays an important role in the high production of crops. However, many friends do not know how to identify the quality of agricultural film. Let me teach you!
1. High light transmittance agricultural film has good transparency, but the color of general agricultural film is whitish and foggy.
2. The agricultural film has good weather resistance. In the cold winter, it still maintains good flexibility, while the general agricultural film becomes hard and will have white marks when it is folded.
3. Durable agricultural film has high tensile strength. If a small strip is cut, it can be stretched 6 to 7 times without breaking. Generally, agricultural film is brittle.
4. When the anti-dripping film is sprayed with water, the water droplets are in the form of flakes and flow down the film wall.
5. When the heat-insulating film is stretched, it will turn white where it is stretched. If it is stretched repeatedly, it will become transparent again, indicating high heat preservation. Generally, the film does not have this effect.
6. The anti-dust agricultural film is non-sticky, easy to spread, and when the film surface is sprayed with water, the water collection is small droplets, while the general agricultural film is strong, the film and the film will stick together, not easy to pull apart, and easy to get dust .
7. When the agricultural film with good astigmatism penetrates the sunlight, the light is soft and scattered, while the general agricultural film has a direct feeling.
