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Changle Luguang Plastic Products Co., Ltd. is mainly engaged in various high-temperature shed films, PO films, grouting films, anti-fog films, two-layer films, and mulching films.
Agricultural film precautions
Release time:
2021-09-03
The thickness of the cast polyethylene film of the agricultural film is uniform, but due to the high price, it is rarely used at present.
Agricultural film low-density polyethylene film is generally made by two processes: blow molding and casting. The thickness of the cast polyethylene film of the agricultural film is uniform, but due to the high price, it is rarely used at present. Blown polyethylene film is made by blowing grade PE particles through blow molding machine, and the cost is low, so it is the most widely used. Low-density polyethylene film is a translucent, glossy, soft-textured film. The agricultural film has excellent chemical stability, heat-sealability, water resistance and moisture resistance, freezing resistance, and can be boiled. Biaxially oriented polypropylene film (BOPP) agricultural film Biaxially oriented polypropylene film is obtained by co-extruding polypropylene particles to form a sheet, and then stretching in both vertical and horizontal directions. Due to the orientation of the stretched molecules, this film has good physical stability, mechanical strength, air tightness, high transparency and gloss, toughness and wear resistance, and is the most widely used printing film at present. 40 μm, the most widely used is 20 μm. The main disadvantage of biaxially oriented polypropylene film is poor heat sealing, so it is generally used as the outer film of the composite film. Serving dry food. Because the surface of biaxially oriented polypropylene film is non-polar, has high crystallinity and low surface free energy, its printing performance is poor,
When the agricultural film is used, we always want to ensure that its lifespan can be longer, so what is it that prevents it from "longevity"?
External damage The agricultural film is the most important factor affecting the service life of the film. For example, when the agricultural film is installed, it is not tightened. When the strong wind comes, the agricultural film will bulge and beat the skeleton continuously and rapidly, causing damage to the agricultural film; the aging bamboo pole is easy to cut the shed film after breaking. Therefore, in daily management, we must pay attention to these details.
Temperature In high temperature weather, the agricultural film is easy to age and rupture. The agricultural film, especially the part where the agricultural film is in contact with the skeleton, is prone to form hot spots, and the maximum temperature can reach 80 °C. This part of the agricultural film is particularly prone to aging and damage. Vegetable farmers can use white plastic tape to tie the frame to the place where the film is in contact to prevent the agricultural film from being damaged by high temperature.
Pesticides, especially pesticides and agricultural film fungicides containing sulfur or chlorine components, will destroy the stability of agricultural film. Vegetable farmers must be careful when spraying the back of vegetable leaves, not to spray on the agricultural film.
Films of different components interact with each other. For example, PVC film was used in the greenhouse last season. If you want to use EVA film for agricultural film in the next season, you should pay attention to removing the PVC film on the left and right sides of the shed to avoid two films. Accelerates aging after contact. What needs to be reminded is that some vegetable farmers often use bicycle tires to wrap bamboo poles in agricultural film, but they do not know that this item is also made of polychlorinated raw materials, which is harmful to the shed film and should be replaced immediately.
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Changle Luguang Plastic Products Co., Ltd.
Tel：+86-15908009999
Fax：0536-6729666
E-mail：cllgsl@163.com
Address: Opposite to the government station of Yaogou Town, Changle County, Shandong Province
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