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A down-conversion light converting agent, a preparing method thereof, down-conversion blue light converting film and a preparing method of the film

A technology of light conversion agent and light conversion film, which is applied in the fields of botanical equipment and methods, chemical instruments and methods, luminescent materials, etc., and can solve the problem of low light conversion efficiency of light conversion agent and blue light conversion film, and the difficulty of polymer resin Compatibility and other issues, to achieve high light conversion efficiency, avoid agglomeration and uneven distribution, and strong absorption

Inactive Publication Date: 2017-12-19
义乌市转喆科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the disadvantages of the low light conversion efficiency of the light conversion agent and the blue light conversion film in the prior art and the incompatibility with polymer resins, an object of the present invention is to provide a light conversion agent with good chemical stability, high light conversion efficiency, and use Long-life down-converting light-converting agent and its preparation method; another object of the invention is to provide a down-converting blue light-converting film using the above-mentioned down-converting light-converting agent and its preparation method

Method used

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  • A down-conversion light converting agent, a preparing method thereof, down-conversion blue light converting film and a preparing method of the film
  • A down-conversion light converting agent, a preparing method thereof, down-conversion blue light converting film and a preparing method of the film
  • A down-conversion light converting agent, a preparing method thereof, down-conversion blue light converting film and a preparing method of the film

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Embodiment

[0019] Down conversion light conversion agent, the chemical composition is: Sr 4-x MgSi 2 o 9 :xEu 2+ , where the value range of x is 0.01≤x≤0.2.

[0020] The preparation method of down conversion light conversion agent comprises the following steps: (1) with high-purity SrCO 3 , MgCO 3 , SiO 2 and Eu 2 o 3 As raw material, according to the chemical formula Sr 4-x MgSi 2 o 9 :xEu 2+ The stoichiometric ratio of each raw material is weighed, x is 0.05, and the mass percentage is 0.05 ~ 5% NH 4 F (99.0%) is used as a flux, wherein the value range of x is 0.01≤x≤0.2; (2) the raw materials obtained in step (1) are fully ground in an agate mortar and mixed uniformly; (3) the step ( 2) Put the obtained mixture into a corundum crucible, and then put the corundum crucible and the mixture together into a high-temperature tube furnace for burning. The burning temperature is 1300-1400°C, the burning time is 4-6 hours, and the sintering atmosphere is 5% hydrogen and 95% nitrog...

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Abstract

The invention belongs to the fields of light converting agents and light converting film. A down-conversion light converting agent is disclosed. The chemical composition of the down-conversion light converting agent is Sr<4-x>MgSi2O<9>:<x>Eu<2+>, wherein 0.01<=x<=0.2. A beneficial effect of the light converting agent is that (1) the light converting agent has good chemical stability, a high light conversion efficiency and long service lifetime and can be used for producing agricultural blue light converting film.

Description

technical field [0001] The invention belongs to the field of light conversion agent and light conversion film. Background technique [0002] Studies have found that plants have little absorption of ultraviolet rays less than 400nm, and although they absorb less purple light of 410nm, it can affect the photoperiod effect and prevent the elongation of stems; blue-violet light of 430-440nm will slow down the growth of short-day plants , and promote the decomposition of proteins and inorganic acids; while short-wave blue-violet light and ultraviolet light can inhibit the elongation of stem internodes, promote the differentiation of multiple lateral branches and buds, and help the decomposition of anthocyanins and vitamins; chlorophyll and carotenoids have 460-470nm blue light absorbs the largest proportion and has the greatest impact on photosynthesis. Pigments have a low absorption rate of 520-530nm green light, which can help plants sleep; chlorophyll has a low absorption rat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/59C09K11/02A01G9/14A01G13/02C08L23/06C08L23/12C08L23/08C08L27/06C08K9/10C08K3/26
CPCA01G9/1438A01G13/0262C08J5/18C08J2323/06C08J2323/08C08J2323/12C08J2327/06C08K3/26C08K9/10C08L2203/16C09K11/025C09K11/7734C08L23/06C08L23/12C08L23/0853C08L27/06Y02A40/25
Inventor 楼坚
Owner 义乌市转喆科技有限公司
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