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Light conversion agent and preparation method thereof, green light-to-red light greenhouse film and preparation method thereof

A light-transforming agent and thin-film technology, which is applied in botanical equipment and methods, chemical instruments and methods, and luminescent materials, can solve problems such as poor spectral matching, low luminous intensity, and poor photostability, and achieve green light High red light conversion efficiency, high luminous efficiency, not easy to deliquescence effect

Inactive Publication Date: 2017-12-26
义乌市转喆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome a series of problems such as poor deliquescence resistance, not easy to disperse, fast fluorescence decay, poor photostability, low luminous intensity and poor spectral matching with crops in the light conversion agent in the prior art, an object of the present invention is to provide A light conversion agent that is not easy to deliquescence, has good chemical and light stability, high luminous efficiency, and is easy to fuse with a film matrix, and its preparation method

Method used

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  • Light conversion agent and preparation method thereof, green light-to-red light greenhouse film and preparation method thereof
  • Light conversion agent and preparation method thereof, green light-to-red light greenhouse film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Preparation of light conversion agent: first, use high-purity NaCO 3 , MgCO 3 , ZrO 2 and Eu 2 o 3 As raw material, according to the chemical formula Na 2 Mg 0.98 Zr 2 o 6 : 0.02Eu 2+ The stoichiometric ratio of each raw material was weighed, fully ground and mixed in an agate mortar; then the mixture was put into a corundum crucible, and burned in a high-temperature tube furnace with a burning temperature of 1000 °C and a burning time of 6 hours, the sintering atmosphere is a mixture of 5% hydrogen and 95% nitrogen. After the burning is completed, the sample is cooled to room temperature with the furnace, and finally the sintered body is taken out and ball milled, washed and dried to obtain a light-changing agent. .

[0018] Film blowing: Weigh 40 parts of polyethylene resin by weight percentage, 20 parts of light-changing agent, and strengthening agents are respectively 10 parts of glyceryl stearate, 10 parts of tricresol phosphate, 10 parts of phenyl salicyl...

Embodiment 2

[0027] Preparation of light conversion agent: first, use high-purity NaCO 3 , MgCO 3 , ZrO 2 and Eu 2 o 3 As raw material, according to the chemical formula Na 3 Mg 0.499 Zr 2 o 6 : 0.001Eu 2+The stoichiometric ratio of each raw material was weighed, fully ground and mixed in an agate mortar; then the mixture was put into a corundum crucible, and burned in a high-temperature tube furnace with a burning temperature of 1100°C and a burning time of 5 hours, the sintering atmosphere is a mixture of 5% hydrogen and 95% nitrogen. After the burning is completed, the sample is cooled to room temperature with the furnace, and finally the sintered body is taken out and ball milled, washed and dried to obtain a light-changing agent. .

[0028] Film blowing: Weigh 45 parts of polyethylene resin, 30 parts of light-changing agent, 10 parts of glycerol stearate, 5 parts of tricresol phosphate, 5 parts of phenyl salicylate, 5 parts of stearic acid 5 parts of zinc; then mix uniformly...

Embodiment 3

[0030] Preparation of light conversion agent: first, use high-purity NaCO 3 , CaCO 3 , ZrO 2 and Eu 2 o 3 As raw material, according to the chemical formula Na 2 Ca 0.96 Zr 2 o 6 : 0.04Eu 2+ The stoichiometric ratio of each raw material was weighed, fully ground and mixed in an agate mortar; then the mixture was put into a corundum crucible, and burned in a high-temperature tube furnace with a burning temperature of 1200 °C and a burning time of 4 hours, the sintering atmosphere is a mixture of 5% hydrogen and 95% nitrogen. After the burning is completed, the sample is cooled to room temperature with the furnace, and finally the sintered body is taken out and ball milled, washed and dried to obtain a light-changing agent. .

[0031] Film blowing: Weigh 50 parts of polyvinyl chloride resin by weight percentage, 25 parts of light-changing agent, and strengthening agents are respectively 5 parts of glyceryl stearate, 10 parts of tricresol phosphate, 5 parts of phenyl sal...

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Abstract

The invention belongs to the fields of a light conversion agent and a greenhouse film. A chemical reaction of the light conversion agent is Na2+2yM1-x-yZr2O6:xEu<2+>, wherein M represents one or more than one of Mg, Ca, Sr, and Ba elements, a value range of x is greater than or equal to 0.01 and less than or equal to 0.2, and the value range of y is greater than or equal to -0.5 and less than or equal to 0.5. The light conversion agent has the advantages of good chemical and light stability, high luminescence efficiency, and uniform particle dispersion, and is capable of fusing with a film matrix, an emission spectrum is positioned at a red light area, and is matched with orange light required by plant photosynthesis, especially an excitation peak is positioned at a green light area, so that green light component having most content in sunshine can be fully used.

Description

technical field [0001] The invention belongs to the field of light-changing agents and greenhouse films, in particular to a light-changing agent and a green-light-to-red-light greenhouse film using the light-changing agent. Background technique [0002] Plant physiology studies have shown that photosynthesis is the most important source of energy for plants to carry out life activities and growth. For green plants, photosynthesis is mainly done by chlorophyll. Scientific research shows that the absorption spectrum of chlorophyll is the blue-violet light region of 400nm-480nm and the red-orange light region of 600nm-680nm. Obvious, even harmful. However, among the sunlight received by the earth's surface, light with a wavelength of 300nm to 750nm only accounts for about half of the entire solar spectrum, which means that there are still a lot of light in the solar spectrum that is harmful to plant growth and beneficial to plant growth. Insufficient blue-violet light and re...

Claims

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Application Information

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IPC IPC(8): C09K11/67C08L23/06C08L27/06C08L23/08C08L23/12C08K13/02C08K5/103C08K5/523C08K5/134C08K5/098C08K3/24C08J3/22A01G9/14
CPCA01G9/1438C08J3/226C08J2323/06C08J2323/08C08J2323/12C08J2327/06C08K3/24C08K5/098C08K5/103C08K5/1345C08K5/523C08K13/02C08L2203/16C09K11/7729C09K11/7731C08L23/06C08L27/06C08L23/0853C08L23/12Y02A40/25
Inventor 楼坚
Owner 义乌市转喆科技有限公司
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