① Material and Performance
PVC film
1. PVC film has good transparency, strong tensile and impact resistance, moderate insulation effect, and relatively low price.
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EVA film
2. EVA film has better insulation performance than PVC film and better transparency, but its price is slightly higher. It also has good weather resistance and aging resistance.
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PO film
3. PO film is a new type of material with excellent transparency, insulation, and weather resistance. It can effectively prevent infrared leakage and maintain the temperature inside the greenhouse, but the price is relatively high.
② Light transmittance
Transmittance is one of the important indicators of thermal insulation film. Choosing a thermal insulation film with high light transmittance can ensure that crops receive sufficient light and promote photosynthesis. At the same time, pay attention to choosing a thermal film with anti fog function to avoid fog droplets affecting the light transmission performance inside the shed.
③ Thermal insulation performance and aging resistance
Insulation and thickness of film
The temperature inside the greenhouse depends on the insulation performance of the film. Choosing a good insulation film can ensure that crops can still grow normally in cold seasons. Pay attention to distinguishing the insulation coefficient and thickness parameters of the thermal insulation film, and choose a thermal insulation film that is suitable for the local climate conditions.
Anti aging property of membrane
Since the greenhouse needs long-term use, the anti-aging performance of the thermal insulation film is also very important. Choosing a specially treated thermal film, such as adding UV stabilizers, can extend its lifespan and reduce the frequency of replacement.
④ Mist droplet atomization performance
High quality greenhouse film has good atomization level, which can make water vapor flow down the film and back into the air under high humidity, and has excellent anti fog function. When installing, be careful not to reverse the anti fog layer to the outside when attaching the shed.
Therefore, when selecting the intelligent greenhouse thermal film, it is necessary to comprehensively consider the factors such as material, performance,
light transmittance, thermal insulation, anti-aging, and anti fogging performance. Through comprehensive comparison and evaluation,
select insulation films that are suitable for local climate conditions and crop needs to ensure the healthy growth of crops in the greenhouse!