An agricultural shed film with long-term dripping, fog reduction, aging resistance and low temperature resistance

Abstract

The invention relates to the field of agricultural shed film, in particular to an agricultural shed film with long-term dripping, fog reduction, aging resistance and low temperature resistance. An agricultural shed film with long-term dripping, fog reduction, aging resistance and low temperature resistance performance, said agricultural shed film is composed of inner layer, inner two layers, middle layer, outer two layers, outer layer Layers are stacked outwards in sequence. The agricultural shed film prepared by the present invention has the performance of long-term dripping, fog reduction, aging resistance and low temperature resistance, which is specifically shown in that the agricultural shed film has good dripping performance, the formed water droplets can flow down the film, the dripping lasts for a long time, and the temperature rises quickly , strong heat preservation, obvious effect of increasing production, strong weather resistance and wind resistance, and good anti-fog function and light transmission performance, which can reduce or eliminate the fog in the greenhouse, which is beneficial to the photosynthesis of crops and reduce crop diseases. In a variety of large and medium-sized sheds and solar greenhouses, various leafy vegetables, flowers, melons and fruits are cultivated in solar greenhouses for overwintering.

Description

technical field [0001] The invention belongs to the field of agricultural shed film, more specifically, the invention relates to an agricultural shed film with long-term dripping, fog reduction, aging resistance and low temperature resistance. Background technique [0002] Greenhouse is one of the important facilities of modern agriculture, which changes the dependence of traditional planting methods on natural conditions. The yield and quality of crops per unit area are effectively improved, and the production cost is relatively reduced. Therefore, greenhouse planting technology is gradually replacing traditional planting technology in agriculture and planting and is accepted by people. According to statistics, the covered area of ​​greenhouse film in my country exceeds 16,000km 2 , the annual use of shed film is about 1500kt / a, and the annual renewal demand is about 700kt, showing an increasing trend year by year. Has formed a huge industry. The main raw material for th...

AI Technical Summary

Problems solved by technology

The preparation method adopted is to directly coat a layer of dripping antifogging agent on the surface of the polyethylene shed film. Due to the great difference in polarity between polyethylene and the coated dripping antifogging agent, it is often difficult to coat Moreover, the adhesion between the coating and the polyethylene surface is poor, resulting in a short duration of dripping and defogging of the shed film, which still cannot meet the requirements

Therefore, the present invention is committed to solving the above-mentioned problem that the surface activity of conventional dripping agents is relatively low and cannot play the role of defogging, and at the same time solves the problem that auxiliary agents such as dripping agents and antifogging agents continuously migrate to the surface of the film and are accompanied by water droplets. Loss, thus gradually losing the function of dripping and defogging, resulting in the problem of short onset period

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