PE(Polyethylene)'s usage is broad, because it doesn't lose its elasticity under quite low temperature, and has strong intensity, and strong against chemicals, and it also can be made complicated shapes by molding. especially its usage on agriculture is plenty. It is widely used on vegetation fields, horticulture, and floriculture fields. also, it is used on construction fields, for base formation of building to prevent water leakage.
Outstanding functions of pe film
1. Anti-fogging Effect
The anti-fogging films are to prevent water drops from dropping on the crops by sliding on surface inside of the film. The effect can be less by rain, humid, or dust, and it can directly get effected by the surroundings’ conditions, like the amount of rainfall, or snowfall, wind, climate changes, and can show totally different results depending on the temperature of outside. Also, the result can be affected by the method of managing the green house, and the condition of it. The anti-fogging effect is one of the most necessary properties that most of products have.
Agricultural films should have good ray-transmissivity, which means in spite of long-life products, ray-transmissivity must be maintained. Also, for the crops' equal growth, the dispersion of a ray is required. The dust on the film needs to be cleansed by rain and by bi-layered structure, the transmissivity should be maintained both in chemical and physical way.
The wear-resistibility is the property that is about for how long it keeps the basic properties (intensity or elongation) of the product. The life span of the film gets affected by the sun-ray's intensity, height above sea level, season, temperature, or pesticide. Also, it gets affected by the climate, and its additives can be decomposed by direct or indirect reaction with other substances. The life span of agricultural films is usually one year, but the demand for multiple year-long films is increasing. The wear-resistibility is included as one of the basic functions, with the anti-fogging effect.
4. Heat Retained
The thermo-capability is about keeping the sufficient temperature for the crop to grow especially during the winter season. The thermo-capability can be affected by the structure of the green house or the mulching method, and even if the film's thermo-capability is excellent, the ability can be decreased by mistakes in managing. Because of increase of the heating-cost, the importance of the agricultural film's thermo-capability is magnifying, and it is considered as an additional function with anti-fogging effect and wear-resistibility.
5. Anti-Dripping effect
The moist that is produced inside of the green house, sticks on the film's surface by the hydrophilic character and gets removed, so that the sun ray can go through, and prevent the diseases caused by humidity, and helps the crops' photosynthesis.