A kind of rare earth organic light conversion agent and anti-aging light conversion film

A rare-earth organic and light-transforming agent technology, applied in organic chemistry, 3/13 group organic compounds without C-metal bonds, luminescent materials, etc., can solve problems such as poor compatibility and poor dispersion of rare earth complexes, and achieve early Harvest, effect of good compatibility

Inactive Publication Date: 2019-04-09
YANCHENG INST OF TECH
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Problems solved by technology

[0005] The object of the present invention is to provide a rare earth organic light conversion agent, aiming to improve the problem of poor compatibility between the rare earth Eu(III) organic light conversion agent and polymer materials
[0006] The purpose of the present invention is to provide an anti-aging light-transferring film, aiming at improving the problem of poor dispersion of rare earth complexes in polymer matrix materials

Method used

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  • A kind of rare earth organic light conversion agent and anti-aging light conversion film
  • A kind of rare earth organic light conversion agent and anti-aging light conversion film
  • A kind of rare earth organic light conversion agent and anti-aging light conversion film

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preparation example Construction

[0032] It should be noted that sorbitol ferulate is a self-made product. The preparation method of sorbitol ferulic acid ester comprises: dissolving ferulic acid and sorbitol in alcohol solvent, adding dicyclohexylcarbodiimide and 4-dimethylaminopyridine, and heating for reaction.

[0033] The specific synthesis method is: dissolve 3mmol ferulic acid and 1mmol sorbitol in ethanol, add 0.1mmol dicyclohexylcarbodiimide (DCC) and 0.05mmol 4-dimethylaminopyridine (DMAP), and heat up to 75°C , stirred and reacted for 3 hours, concentrated under reduced pressure, and separated by silica gel column chromatography using cyclohexane and ethyl acetate (50 / 50, v:v) as the eluent to obtain an antioxidant.

[0034]Specifically, the polyolefin includes any one of polyvinyl chloride, polyethylene, or ethylene-vinyl acetate copolymer. Commonly used polyolefins for film formation can be used as the main film-forming material of the anti-aging light conversion film. Preferably, the polyethyle...

Embodiment 1

[0037] This embodiment provides a rare earth organic light conversion agent, which is prepared by the following method:

[0038] Dissolve 1,3-bis(4-methoxyphenyl)propane-1,3-dione in ethanol to obtain 0.1 mmol / mL first solution, 2,2′:6′,2″-tripyridine-6 - The carboxylic acid was dissolved in methanol to obtain a 0.1 mmol / mL second solution, and Eu(NO 3 ) 3 .5H 2 O was dissolved in deionized water to obtain a 0.1mmol / L third solution, the first solution, the second solution and the third solution were mixed in a volume ratio of 1:1:1, and the pH was adjusted to 7 with 0.5mol / L NaOH solution, Raise the temperature to 60°C for 3 hours to react, filter, wash and dry in vacuum.

[0039] This embodiment also provides an anti-aging light conversion film, including by weight parts: the rare earth organic light conversion agent Eu(BMPD) prepared in this embodiment n 1.5 parts of L, 2 parts of sorbitol ferulate and 100 parts of polyethylene.

Embodiment 2

[0041] This embodiment provides a rare earth organic light conversion agent, which is prepared by the following method:

[0042] Dissolve 1,3-bis(4-methoxyphenyl)propane-1,3-dione in ethanol to obtain 0.1 mmol / mL first solution, 2,2′:6′,2″-tripyridine-6 - The carboxylic acid was dissolved in methanol to obtain a 0.1 mmol / mL second solution, and Eu(NO 3 ) 3 .5H 2 O was dissolved in deionized water to obtain a 0.1mmol / L third solution, the first solution, the second solution and the third solution were mixed in a volume ratio of 2:1:1, and the pH was adjusted to 6.8 with 1.0mol / L NaOH solution, Raise the temperature to 65°C to react for 2 hours, filter, wash and dry in vacuum.

[0043] This embodiment also provides an anti-aging light conversion film, including by weight parts: the rare earth organic light conversion agent Eu(BMPD) prepared in this embodiment n 2.5 parts of L, 5 parts of sorbitol ferulate and 100 parts of polyethylene.

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Abstract

The invention discloses a rare earth organic light conversion agent and an anti-aging light conversion film, and relates to the technical field of the macromolecular function materials. The molecular formula of the rare earth organic light conversion agent is Eu(BMPD)nL, wherein Eu3+ is central luminescent ions. A part of ultraviolet light in the solar spectrum is converted to red light suitable for the plant photosynthesis, the crops can be promoted to be harvested early, and the plants are grown healthily. The anti-aging light conversion film comprises the following components by weight: 1-5 parts of the rare earth organic light conversion agent Eu(BMPD)nL, 2-10 parts of an antioxidant and 100 parts of polyolefin. Because the rare earth organic light conversion agent and a film substrate have the good compatibility, the rare earth organic light conversion agent is not only used for preparing the normal film so as to prepare the modified rare earth light conversion film, but also used for an anti-drop film and a weather-resistant film extensively.

Description

technical field [0001] The invention relates to the field of polymer functional materials, and in particular to a rare earth organic light conversion agent and an anti-aging light conversion film. Background technique [0002] my country is currently the most populous country in the world, and the sustainable development of agriculture is the foundation of my country's economic construction and development. Increasing the unit yield of crops can not only effectively solve the food and clothing problem of our population, but also has important significance to the development of our country's economy. [0003] Light-converting film is a new type of functional film that has emerged in various countries in recent years. It can convert ultraviolet light and yellow-green light in sunlight into blue light and red light that can be used by plants, thereby effectively improving the quality of light transmitted by plastic shed greenhouses and improving the quality of light. The compr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F5/00C09K11/06C09K11/02A01G13/02C08L23/06C08L27/06C08L23/08C08K5/00C08K5/134
CPCA01G13/0275C07F5/003C08J5/18C08K5/0091C08K5/1345C08L2201/08C08L2203/16C08L2207/066C09K11/025C09K11/06C09K2211/1007C09K2211/1029C09K2211/182C08L23/06C08L27/06C08L23/0853
Inventor 张怀红仓辉蔡照胜孙柏旺孙玉
Owner YANCHENG INST OF TECH
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