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Multifunctional three layers combined antifog film of polythene for shed

A layer-composite, polyethylene technology is applied in the field of agricultural polyethylene three-layer composite multi-functional anti-fog shed film, which can solve the requirements of strict selection of shed film dripping agent, poor transparency and dustproof performance of shed film, and restricting dripping agent. Application scope and other issues, to achieve the effect of inhibiting and reducing crop diseases, outstanding dustproof performance, and conducive to promotion and application

Active Publication Date: 2007-07-25
白山市喜丰塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a polyethylene three-layer composite multi-functional anti-fog shed film that can eliminate the fog in the shed, which solves the problems of high price of the existing anti-fog shed film, poor transparency and dustproof performance of the shed film, and The selection of dripping agent for greenhouse film is demanding, which limits the application range of dripping agent in polyethylene greenhouse film, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The shed film of the present invention has a three-layer composite structure, anti-fogging agent is used in the inner layer, and the thickness ratio of the three layers is 3:4:3. Each layer is made of polyethylene as a matrix and functional additives are added in proportion. The co-extrusion blow molding process is processed and formed, and the three-layer co-extrusion blow molding process is a known technology, and the parts by weight ratio of each layer of the formula is as follows:

[0039] Outer layer formula (by weight ratio):

[0040] 45.6894 parts of low-density polyethylene resin with a melt index of 0.3-0.7g / 10min

[0041] 45.6894 parts of linear low-density polyethylene resin with a melt index of 0.7-1.0g / 10min

[0042] 4.91 parts of linear low density polyethylene powdery resin with a melt index of 1.5g / 10min

[0043] 1.97 parts of ethylene-vinyl acetate resin with VA content of 12-14%

[0044] Drip agent 0.74 parts Light stabilizer 622 0.41 parts

[0045...

Embodiment 2

[0063]The shed film of the present invention has a three-layer composite structure, anti-fogging agent is used in the inner layer, and the thickness ratio of the three layers is 3:4:3. Each layer is made of polyethylene as a matrix and functional additives are added in proportion. The co-extrusion blow molding process is processed and formed, and the three-layer co-extrusion blow molding process is a known technology, and the parts by weight ratio of each layer of the formula is as follows:

[0064] Outer layer formula (by weight ratio):

[0065] 32.192 parts of low-density polyethylene resin with a melt index of 0.3-0.7g / 10min

[0066] 55.783 parts of linear low-density polyethylene resin with a melt index of 0.7-1.0g / 10min

[0067] 4 parts of linear low density polyethylene powdery resin with a melt index of 1.5g / 10min

[0068] 1.6 parts of ethylene-vinyl acetate resin with VA content of 12-14%

[0069] Drip agent 0.6 parts Light stabilizer 622 0.34 parts

[0070] Antiox...

Embodiment 3

[0088] The shed film of the present invention has a three-layer composite structure, anti-fogging agent is used in the inner layer, and the thickness ratio of the three layers is 3:4:3. Each layer is made of polyethylene as a matrix and functional additives are added in proportion. The co-extrusion blow molding process is processed and formed, and the three-layer co-extrusion blow molding process is a known technology, and the parts by weight ratio of each layer of the formula is as follows:

[0089] Outer layer formula (by weight ratio):

[0090] 59.5 parts of low-density polyethylene resin with a melt index of 0.3-0.7g / 10min

[0091] 30 parts of linear low-density polyethylene resin with a melt index of 0.7-1.0g / 10min

[0092] 6 parts of linear low density polyethylene powdery resin with a melt index of 1.5g / 10min

[0093] 2.4 parts of ethylene-vinyl acetate resin with VA content of 12-14%

[0094] Drip agent 0.9 parts Light stabilizer 622 0.48 parts

[0095] Antioxidant...

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Abstract

This invention relates to a three-layer multifunctional anti-fogging film of polyethylene. The film has three layers, with the thickness ratio of 3:4:3. All the three layers are based on polyethylene, and the anti-fogging agent is added in the innermost layer. The film is molded by co-extrusion blowing, has good anti-fogging performance and low cost, and can inhibit crop diseases, increase crop illumination intensity, improve crop quality, and increase crop yield.

Description

technical field [0001] The invention relates to an agricultural shed film, in particular to an agricultural polyethylene three-layer composite multifunctional anti-fog shed film capable of eliminating fog in a greenhouse. Background technique [0002] As we all know, in the production of new polyethylene functional shed film, the method of adding a dripping agent is used to make the film have a dripping property within a certain period of time, and the light transmittance of the covered film is 6% to 10% higher than that of ordinary films, especially in In the early spring and autumn and winter seasons with low sunshine intensity and short sunshine time, the increase of light transmittance can significantly increase the yield of crops. But in the actual application process, the dripping has brought mist. A research report pointed out that "when the solar greenhouse is full of fog, the light intensity near the ground is reduced by 10% to 12% compared with that without fog, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18B32B27/32B32B27/18A01G9/22A01G13/02
CPCY02A40/25
Inventor 祝年锋孔杰蒋瑞萍李静华蒋万松
Owner 白山市喜丰塑业有限公司
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