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Functional greenhouse film application
With the rapid advancement of high-tech agriculture in China and the widespread adoption of greenhouse farming, the demand for plastic films used in greenhouses has surged. However, traditional single-layer PE films suffer from low light transmission, poor elasticity, and weak UV resistance. While single-layer EVA films offer better elasticity, they lack heat resistance. In response to these challenges, a new generation of multi-functional three-layer PEP co-extruded agricultural film has emerged in the market. This innovative product combines PE, EVA, and PE in a sandwich structure, enhancing performance while retaining the advantages of conventional films and eliminating their drawbacks.
This advanced agricultural film incorporates additives such as anti-aging, anti-fog, and heat retention agents, along with a next-generation metallocene polyolefin catalyst, making it thinner yet stronger. Compared to standard agricultural films, this product offers a longer lifespan—up to 1–3 times longer—and improved anti-drip properties, lasting 3–4 times longer. It also provides excellent insulation, biological control, and cooling effects, making it ideal for various agricultural applications.
The multi-functional agricultural films come in a range of colors, including gold, silver, copper, and rose, specifically designed for different crops like roses, and feature red fluorescent technology. They also include biological control films, heat-insulating films, and more. These films are popular among farmers due to their unique features and vibrant colors, making them a superior alternative to traditional plastic films.
Key benefits of this high-tech three-layer agricultural film include:
1. **Durability**: Containing 15%–35% more UV stabilizers than regular PE films, it resists aging caused by UV exposure and oxidation, extending its lifespan to up to 5 years depending on the region.
2. **Light Transmittance**: Offers up to 92% light transmission, adjustable based on specific crop needs.
3. **Refractive Index**: Available in low (below 25%), medium (25%–40%), and high (40%–60%) refractive index options, tailored to different growing conditions.
4. **Heat and Wind Resistance**: Combines the heat resistance of PE with the toughness of EVA, making it suitable for harsh weather conditions.
5. **Anti-Static Surface**: Treated to prevent dust accumulation, ensuring a cleaner and more efficient environment.
6. **UV Protection**: Uses two UV formulations for enhanced protection, significantly increasing durability and lifespan.
7. **Insulation Performance**: Designed to retain up to 75%–85% of far-infrared rays at night, offering superior thermal insulation compared to standard films.
8. **Anti-Fog Properties**: Contains additives that reduce surface tension, allowing condensation to form into droplets that slide off the film, preventing fog buildup.
Three notable types of this advanced film include:
1. **Biological Control Film – TUV3798AF**: This film blocks UV wavelengths below 375 nm, disrupting the movement and fertility of pests, thus reducing disease transmission in enclosed greenhouses.
2. **Thermal Insulation Film – TUV3758AF**: Designed to reflect near-infrared rays (700–1600 nm), it can lower greenhouse temperatures by 5–8°C during summer while maintaining high light transmittance (91% PAR) and scattering 72% of light, promoting healthy plant growth. It also performs well in winter for effective insulation.
3. **Multi-Purpose Special Film – TUV3950AF**: Ideal for cold climates, this film offers high heat retention, excellent light transmission (up to 90%), long-lasting durability, dust-proof treatment, internal drip prevention, and a wide width (up to 16 meters), eliminating the need for cutting.
In summary, this multi-functional three-layer co-extruded agricultural film not only protects crops from wind, rain, and cold but also filters out harmful UV rays while allowing beneficial photosynthetically active radiation (PAR) to pass through. As a result, crops grow faster, quality improves, yields increase, and farmers achieve higher production efficiency.