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Agricultural greenhouse film with high light conversion rate, and making method thereof

A technology for agricultural greenhouses and middle layers, applied in the field of high light conversion rate agricultural greenhouse film and its preparation, can solve the problems of easy volatilization of chloride ions, low light transmittance, short service life, etc., to improve photosynthesis intensity, increase production and quality Good, fast growing effect

Inactive Publication Date: 2014-10-22
ANHUI CHAOHU SOUTH MEMBRANE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the presence of chloride ions, chloride ions are easy to volatilize when the temperature is high during blown film processing, and the compatibility between inorganic rare earth and polymer material polyethylene is not good, and the light conversion effect cannot be maintained for a long time
In addition, the light-converting film also has the disadvantages of common agricultural greenhouse films, which are prone to fog droplets, low light transmittance, poor oxidation resistance, and short service life.

Method used

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  • Agricultural greenhouse film with high light conversion rate, and making method thereof
  • Agricultural greenhouse film with high light conversion rate, and making method thereof
  • Agricultural greenhouse film with high light conversion rate, and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Outer film: linear low density polyethylene 20%, low density polyethylene 60%, dioctyl phthalate 8%, organic rare earth additives 2%, nano silicon dioxide 0.5%, polyethylene glycol 2% , Oxidized polyethylene wax 1%, antioxidant B2152%, ultraviolet absorber UV5310.5%, light stabilizer GW-5441%, heat stabilizer 2%, talcum powder 0.5%;

[0020] Middle layer film: Ethylene-vinyl acetate copolymer 50%, linear low density polyethylene 15%, low density polyethylene 12%, dioctyl phthalate 8%, polyethylene glycol 2%, oxidized polyethylene wax 1 %, antioxidant B2151%, light stabilizer GW5441%, heat stabilizer 1%, anti-fog agent AF-230.8%, dripping agent KF6502%, diatomaceous earth 0.3%;

[0021] Inner film: ethylene-vinyl acetate copolymer 60%, linear low density polyethylene 20%, dioctyl phthalate 8%, polyethylene glycol 2%, oxidized polyethylene wax 1%, antioxidant B2151% , Light stabilizer GW-5441%, heat stabilizer 1%, anti-fog agent AF-231%, dripping agent KF6502%, diatomace...

Embodiment 2

[0023] Outer film: linear low density polyethylene 25%, low density polyethylene 65%, dioctyl phthalate 9%, organic rare earth additives 4%, nano silicon dioxide 1%, polyethylene glycol 5% , oxidized polyethylene wax 2%, antioxidant B2153%, ultraviolet absorber UV5311%, light stabilizer GW-5442%, heat stabilizer 3%, talcum powder 1%;

[0024] Middle layer film: Ethylene-vinyl acetate copolymer 55%, linear low density polyethylene 17%, low density polyethylene 16%, dioctyl phthalate 9%, polyethylene glycol 4%, oxidized polyethylene wax 1.5 %, antioxidant B2151%, light stabilizer GW5441%, heat stabilizer 1.5%, anti-fog agent AF-231.5%, dripping agent KF6503%, diatomaceous earth 0.7%;

[0025] Inner film: Ethylene-vinyl acetate copolymer 65%, linear low density polyethylene 22%, dioctyl phthalate 9%, polyethylene glycol 4%, oxidized polyethylene wax 1%, antioxidant B2151% , Light stabilizer GW-544 1.5%, heat stabilizer 2%, anti-fogging agent AF-232%, dripping agent KF6503%, diat...

Embodiment 3

[0027] Outer film: 30% linear low density polyethylene, 70% low density polyethylene, 10% dioctyl phthalate, 5% organic rare earth additives, 2% nano silicon dioxide, 7% polyethylene glycol , Oxidized polyethylene wax 3%, antioxidant B2155%, ultraviolet absorber UV5312%, light stabilizer GW-5443%, heat stabilizer 5%, talcum powder 2%;

[0028] Middle layer film: ethylene-vinyl acetate copolymer 60%, linear low-density polyethylene 20%, low-density polyethylene 20%, dioctyl phthalate 10%, polyethylene glycol 7%, oxidized polyethylene wax 2 %, antioxidant B2152%, light stabilizer GW5442%, heat stabilizer 2%, anti-fog agent AF-232%, dripping agent KF6504%, diatomaceous earth 1%;

[0029] Inner film: Ethylene-vinyl acetate copolymer 70%, linear low density polyethylene 25%, dioctyl phthalate 10%, polyethylene glycol 7%, oxidized polyethylene wax-2%, antioxidant B2152 %, light stabilizer GW-5442%, heat stabilizer 2%, anti-fog agent AF-232.5%, dripping agent KF6505%, diatomaceous e...

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Abstract

The invention discloses an agricultural greenhouse film with a high light conversion rate, and a making method thereof, and relates to the technical field of greenhouse film production. The agricultural greenhouse film is composed of an external layer film, a middle layer film and an internal layer film. The making method of the agricultural greenhouse film comprises the following steps: respectively weighing raw materials of the external layer film, the middle layer film and the internal layer film, fully and uniformly mixing the raw materials, adding the obtained mixture to a three-layer co-extrusion film blowing machine, heating, extruding, blow-molding, carrying out upper traction, carrying out lower traction, and reeling to form the agricultural greenhouse film. Organic rare earth elements are added to the greenhouse film made in the invention, so the photosynthesis intensity of crops is obviously improved, the crops have the characteristics of fast growth, good fructification, many products, precocity, yield increase and good quality, and the problems of likely mist droplets, low light transmittance, poor oxidation resistance and short service life of general greenhouse films are solved.

Description

Technical field: [0001] The invention relates to the technical field of greenhouse film production, in particular to an agricultural greenhouse film with high light conversion rate and a preparation method thereof. Background technique: [0002] The light conversion film is a greenhouse film made by adding "light conversion functional masterbatch" to the raw materials for the production of ordinary greenhouse films. When sunlight passes through the light-transforming film, the ultraviolet rays and green light in the sunlight are absorbed and transformed by the "light-transforming functional masterbatch" in the film, releasing blue-violet and red-orange light that are powerful for plant growth, making the blue and green light in the shed The red light spectrum component increases, which improves the utilization rate of light energy. And studies have shown that the use of light-converting film-covered greenhouses can produce fast growth, good fruit setting, many results, stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B37/00C08L23/06C08L23/08C08K13/02C08K5/12C08K3/36C08K3/34C08K5/3437
Inventor 武道贵
Owner ANHUI CHAOHU SOUTH MEMBRANE IND
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