Agricultural greenhouse film with long-acting flowing drop fog reduction properties, aging resistance and low-temperature resistance

An anti-aging and anti-low temperature technology, applied in the field of agricultural shed film, can solve the problems of poor adhesion between the coating and the polyethylene surface, short duration of the shed film dripping and anti-fogging, and low surface activity of the dripping agent. The effect of increasing production is obvious, the weather resistance and wind resistance are strong, and the dripping duration is long.

Active Publication Date: 2019-06-07
江苏智信塑胶科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Agricultural greenhouse film with long-acting flowing drop fog reduction properties, aging resistance and low-temperature resistance
  • Agricultural greenhouse film with long-acting flowing drop fog reduction properties, aging resistance and low-temperature resistance

Examples

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preparation example Construction

[0133] The second aspect of the present invention provides the preparation method of the aging-resistant dripping masterbatch, comprising the following steps: putting the LDPE, anti-aging agent, hindered amine light stabilizer, functional auxiliary agent, and dripping agent into a high-speed mixer Mix for 10-15 minutes, then transfer to a twin-screw extruder for melt extrusion, the extrusion temperature is 150-200°C, and air-cool to obtain the aging-resistant dripping masterbatch.

[0134] The third aspect of the present invention provides the preparation method of the thermal insulation masterbatch, including the following steps: put the LDPE, talc powder, and basic magnesium carbonate into a high-speed mixer and mix for 10-15 minutes, and then transfer to twin-screw extrusion Machine melt extrusion, the extrusion temperature is 150-200°C, and the heat preservation masterbatch is obtained after air cooling.

[0135] The fourth aspect of the present invention provides the prep...

Embodiment 1

[0143] Example 1 provides an agricultural shed film with long-term dripping, fog reduction, anti-aging and low temperature resistance properties, said agricultural shed film is composed of an inner layer, two inner layers, a middle layer, two outer layers, and an outer layer, and Each layer is stacked sequentially from the inner layer to the outside; wherein, in parts by weight, the agricultural shed film includes: 12 parts of the inner layer, 10 parts of the inner two layers, 18 parts of the middle layer, 18 parts of the outer two layers, 18 parts of the outer layer 25 servings per layer.

[0144] In parts by weight, the inner layer of the present invention includes: 20 parts of POE, 15 parts of LLDPE-1, 10 parts of LDPE-1, and 5 parts of aging-resistant dripping masterbatch.

[0145] The sources of each component of the inner layer are as follows:

[0146] The POE of the inner layer is purchased from DowDuPont Company, and the brand is 1881G;

[0147] The LLDPE-1 is a pr...

Embodiment 2

[0195] Example 2 provides an agricultural shed film with long-term dripping, fog reduction, anti-aging and low temperature resistance properties, said agricultural shed film is composed of an inner layer, two inner layers, a middle layer, two outer layers, and an outer layer, and Each layer is stacked sequentially from the inner layer to the outside; wherein, in parts by weight, the agricultural shed film includes: 12 parts of the inner layer, 10 parts of the inner two layers, 18 parts of the middle layer, 18 parts of the outer two layers, 18 parts of the outer layer 25 servings per layer.

[0196] In parts by weight, the inner layer of the present invention includes: 30 parts of POE, 20 parts of LLDPE-1, 20 parts of LDPE-1, and 10 parts of aging-resistant dripping masterbatch.

[0197] The sources of each component of the inner layer are as follows:

[0198] The POE of the inner layer is purchased from DowDuPont Company, and the brand is 8201;

[0199] The LLDPE-1 is a pr...

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Abstract

The invention relates to the field of agricultural greenhouse films, in particular to an agricultural greenhouse film with long-acting flowing drop fog reduction properties, aging resistance and low-temperature resistance. The agricultural greenhouse film comprises a first inner layer, a second inner layer, a middle layer, a second outer layer and a first outer layer, and the layers are sequentially stacked outwards from the first inner layer. The prepared agricultural greenhouse film has the long-acting flowing drop fog reduction properties, aging resistance and low-temperature resistance, particularly, the agricultural greenhouse film is good in flowing drop property, formed water drops can flow down along the film, flowing drop duration is long, temperature rise is rapid, heat insulation is strong, yield-increasing effects are obvious, weather resistance and wind resistance are strong, the agricultural greenhouse film further has good antifogging functions and light transmittance performance, fogs in a greenhouse can be relieved or eliminated, photosynthesis of crops is facilitated, crop diseases are decreased, and the agricultural greenhouse film is applicable to cultivation ofvarious leaf vegetables in solar greenhouses and over-wintering cultivation of flowers, melons and fruits in various large and medium-sized arched sheds and the solar greenhouses.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/14B32B27/32B32B27/30B32B27/08B32B27/06C08L23/08C08L23/06C08K3/34C08K3/26C08J5/18
CPCY02A40/25
Inventor 卞希惠魏玉强
Owner 江苏智信塑胶科技有限公司
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