The key to choosing plastic film for greenhouses is to choose the right material and type according to specific needs.
First of all, there are many types of films used in greenhouses, including PE film, PVC film, PO film, etc. Each type has its own unique advantages and applicable scenarios. For example, PE film has become one of the most commonly used greenhouse covering materials due to its good light transmittance, UV protection, shock resistance and tensile resistance. PVC film has become another common choice for its high light transmittance, strong softness, anti-aging, waterproof and relatively long service life. PO film, prepared by polyethylene, polypropylene and special polymers, has the advantages of high strength, good tensile resistance, good light transmittance, better weather resistance and corrosion resistance, and longer service life.
Secondly, different types of greenhouses have different requirements for films. For example, EV film is usually used in spring and autumn greenhouses because of its low price, but relatively short service life. For solar greenhouses, especially for off-season planting in the north in winter, PE film or PO anti-drip film is more suitable. Among them, PO anti-drip film is more conducive to the planting requirements in winter greenhouses due to its anti-drip characteristics.
In addition, the thickness of the greenhouse film is also a consideration. Adding an appropriate amount of heat preservation agent to the greenhouse film can improve the insulation effect of the greenhouse, while reducing the light transmittance, which is conducive to the nighttime insulation of the greenhouse. This kind of greenhouse film can diffusely reflect the sunlight entering the greenhouse, so that the greenhouse can evenly obtain light energy in all directions.
In summary, when choosing greenhouse plastic film, the type and thickness of the film and the specific needs of the greenhouse should be comprehensively considered to ensure the best planting effect and economic benefits.
PRODUCTS USED IN THIS PROJECT
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