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 ligh

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

Example Embodiment

[0057] Example 1 (control)

[0058] Manufacturing of 65μm thick light-scattering agricultural film.

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

[0060]

[0061] The manufacturing method of the 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. The components are stirred in a blender and mixed evenly. The film is made into a cylindrical film through a three-layer co-extrusion film blowing unit. After being compacted into a flat film, the scattering type agricultural film is produced after the upper and lower traction rollers and the winder. The speed, current and melt pressure and temperature of each layer of the extruder are shown in Table 2 below. The temperature of the outer barrel is 210°C, the temperature of the middle barrel is 190°C, and the temperature of the inner barrel is 189°C.

[0065] Table 2

[0066]

Example Embodiment

[0067] Example 2 (this application)

[0068] Manufacturing of 68μm-thick light-scattering agricultural film.

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

[0070]

[0071]

[0072] The manufacturing method of the 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. The components are stirred in a blender and mixed evenly. The three-layer co-extrusion film blowing unit is used to form a cylindrical film, which is passed through the upper traction roller. It is clamped into a flat film, and the scattering type agricultural film is produced after the upper and lower traction rollers and the winder. The speed, current and melt pressure and temperature of each layer of the extruder are shown in Table 4 below. The temperature of the outer barrel is 205°C, the temperature of the middle barrel is 185°C, and the temperature of the inner barrel is 190°C.

[...

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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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