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Light scattering type agricultural film as well as manufacturing method and application thereof

A manufacturing method and light scattering technology, which is applied in the agricultural field, can solve the problems of low direct light transmittance and achieve the effects of shortening the picking period, improving light efficiency, and high direct light transmittance

Active Publication Date: 2015-03-25
华盾雪花塑料(固安)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the direct light transmittance is too low (about 80-85%)

Method used

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  • Light scattering type agricultural film as well as manufacturing method and application thereof
  • Light scattering type agricultural film as well as manufacturing method and application thereof
  • Light scattering type agricultural film as well as manufacturing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1 (contrast)

[0058] Manufacture of light-scattering agricultural film with a thickness of 65 μm.

[0059] The formula and performance of the agricultural film are as follows:

[0060]

[0061] The manufacture method of described agricultural film is:

[0062] Table 1

[0063]

[0064] According to the ratio shown in Table 1, it is divided into three layers: inner, middle and outer layers. Each component is stirred in the mixer respectively, and after mixing evenly, it is made into a cylindrical film through a three-layer co-extrusion blown film unit, and is clamped by the upper traction roller. Tightly form a flat film, and make a scattering agricultural film after passing through the upper and lower traction rollers and winder. The speed, current, melt pressure and temperature of each layer of extruder are shown in Table 2 below. The outer barrel temperature is 210°C, the middle barrel temperature is 190°C, and the inner barrel temperature is 189...

Embodiment 2

[0067] Embodiment 2 (this application)

[0068] Manufacture of light-scattering agricultural film with a thickness of 68 μm.

[0069] The formula and performance of the agricultural film are as follows:

[0070]

[0071]

[0072] The manufacture method of described agricultural film is:

[0073] table 3

[0074]

[0075] According to the ratio shown in Table 3, it is divided into three layers: inner, middle and outer layers. Each component is stirred in the mixer respectively, and after mixing evenly, it is made into a cylindrical film through a three-layer co-extrusion film blowing unit, and passed through the upper traction roller. It is clamped to form a flat film, and the scattering type agricultural film is obtained after passing through the upper and lower traction rollers and the winder. The speed, current, melt pressure and temperature of each layer of extruder are shown in Table 4 below. The outer barrel temperature is 205°C, the middle barrel temperature...

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Abstract

The application relates to a light scattering type agricultural film as well as a manufacturing method and application thereof, and belongs to the technical field of agriculture. The agricultural film provided by the application can diffuse a spectrum from a point light source and a line light source to an area light source, so that the luminous efficacy is greatly improved, the uniform light guiding on agricultural crops is implemented, and the defects that the end part leaf surface is burned by high temperature and the possibility of insufficient illumination of low end leaf surface is reduced are prevented. The agricultural film provided by the application has excellent mechanical property, weather resistance, anti-drop property, fog dissipation property, heat preservation property and the like.

Description

technical field [0001] The application relates to a light-scattering agricultural film, its manufacturing method and application, and belongs to the field of agricultural technology. Background technique [0002] Light-scattering agricultural film can also be called astigmatism film. Light-scattering agricultural film usually adds inorganic nano-scale or micron-scale fillers to the agricultural film to scatter the transmitted light and form the same effect as frosted glass. Since the light-scattering agricultural film has the function of inhibiting the transmission of normal incident light, it can reduce the greenhouse temperature and prevent the crops from being burned when the sun is strongest. Through the laboratory optical instrument test, the high haze value is its main feature. [0003] China has been in contact with light-scattering films for more than 20 years, but so far there is no industrial production of such films. The reason is: [0004] (1) Horticultural f...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/18B32B27/32C08L23/08C08L23/06C08K13/02C08K3/34C08K3/26C08K3/30A01G13/02B29C69/02B29C47/06B29C55/28
CPCA01G13/02B29C48/18B29C55/28B29C69/02B32B27/06B32B27/18B32B27/32C08K3/26C08K3/30C08K3/34C08K13/02C08L23/06C08L23/08
Inventor 秦立洁邹宇田刘荣生陈虎生李佳
Owner 华盾雪花塑料(固安)有限责任公司
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