WO2022002217A1 - Light conversion film capable of promoting plant growth and preparation method therefor - Google Patents

Light conversion film capable of promoting plant growth and preparation method therefor Download PDF

Info

Publication number
WO2022002217A1
WO2022002217A1 PCT/CN2021/104104 CN2021104104W WO2022002217A1 WO 2022002217 A1 WO2022002217 A1 WO 2022002217A1 CN 2021104104 W CN2021104104 W CN 2021104104W WO 2022002217 A1 WO2022002217 A1 WO 2022002217A1
Authority
WO
WIPO (PCT)
Prior art keywords
plant growth
phosphor
yttrium
promoting plant
cerium
Prior art date
Application number
PCT/CN2021/104104
Other languages
French (fr)
Chinese (zh)
Inventor
常贵
王育华
濑户孝俊
康自勇
李志勇
赵小霞
Original Assignee
甘肃颐年商贸有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 甘肃颐年商贸有限责任公司 filed Critical 甘肃颐年商贸有限责任公司
Publication of WO2022002217A1 publication Critical patent/WO2022002217A1/en

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774—Aluminates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256—Ground coverings
    • A01G13/0268—Mats or sheets, e.g. nets or fabrics
    • A01G13/0275—Films
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media

Definitions

  • the invention belongs to the technical field of agricultural light conversion materials, and relates to a light conversion film for plant growth.
  • Plants need light to provide energy in the process of growth and development, so the regulation of light is one of the important means of regulating plant growth.
  • Plants absorb light mainly through chlorophyll and carotenoids, which absorb light in the blue light region (400nm-500nm) and red light region (600nm-700nm), respectively.
  • Phytochromes absorb red light and deep red (650nm). -750nm) region of light, corresponding to phototropism, photosynthesis and photomorphogenesis, respectively.
  • the most important for plant growth is the light located in the red light region (600nm-700nm), because red light has a great influence on the flowering and mature stages of plants.
  • LED plant growth lights mainly use high-cost red phosphors.
  • LED plant lights have many shortcomings: the spectral curve of the current LED plant lights on the market is quite different from the spectral curve absorbed by plant photosynthesis, the energy utilization rate of the light source is not high, the price of LED chips is high, and a lot of power resources are consumed. This increases planting costs and wastes resources. Therefore, although indoor LED plant growth factories can increase crop yield, it is not suitable for cultivating some low-economic crops, and these low-economic crops are just the vegetables and fruits that people need daily, so LED plant growth lights are difficult to be widely used.
  • the purpose of the present invention is to provide a solar energy conversion film with low cost and improved utilization of light energy, and at the same time provide a preparation method.
  • a photoconversion film capable of promoting plant growth is in the form of a thin film, with a thickness of ⁇ m, and contains Y (3-x) Ba x Al (5-x) Si x O 12 : mCe, nCr, 0 ⁇ x ⁇ 1, m>0, n>0 garnet phosphors and polymer resin or glass with a refractive index of 1.4-1.65, garnet phosphors are uniformly dispersed in the polymer resin or glass middle.
  • the garnet phosphor has a maximum emission peak in the region of 660-700 nanometers.
  • the polymer resin is polycarbonate or epoxy resin.
  • Step 1 According to the expression Y (3-x) Ba x Al (5-x) Si x O 12 : mCe, nCr, 0 ⁇ x ⁇ 1, m>0, n>0, the stoichiometric ratio of each chemical composition Weigh out the following raw materials:
  • Yttrium compound use yttrium oxide Y 2 O 3 or yttrium-containing hydroxide or yttrium-containing nitrate, yttrium-containing carbonate or yttrium-containing sulfate or yttrium-containing phosphate;
  • Aluminum compounds Yttrium oxide Al 2 O 3 or aluminum-containing hydroxide or aluminum-containing nitrate or aluminum-containing sulfate or aluminum-containing phosphate;
  • Barium compounds barium carbonate BaCO 3, or use of barium hydroxide or barium nitrate or barium sulfate, or barium phosphate;
  • Silicon compounds silicon dioxide SiO use or silicon-containing silicon hydroxide or carbonate or nitrate or silicon-containing silicon-containing silicon-containing phosphate or sulfate 2;
  • Chromium compounds chromium oxide Cr 2 O 3 or chromium hydroxide or chromium nitrate, chromium carbonate or chromium sulfate or chromium phosphate;
  • Cerium compounds cerium oxide CeO 2 or using cerium nitrate or a hydroxide containing cerium, cerium-containing carbonate or cerium sulfate or phosphate-containing cerium;
  • the weighed raw material components are mixed together and ground to a micron level to obtain mixed raw material powder;
  • Step 2) the mixed raw material powder obtained in step 1) is placed in a reducing atmosphere with a temperature of 1400°C-1500°C for calcination for 4-5 hours; the calcined material is cooled to room temperature with the furnace to obtain a calcined product;
  • Step 3 Grinding the calcined product to the micron level to obtain a phosphor powder with a garnet structure containing Ce and Cr, mixing the phosphor powder and the polymer resin in a mass ratio of 1:4 to 1:1, and forming a film according to the existing method.
  • the light conversion film is produced by the process (the produced film is attached to the plate by the coating machine).
  • the reducing atmosphere can be: ammonia NH 3 , or a mixed gas consisting of 5-25% hydrogen H 2 and 95-75% nitrogen N 2 by volume, or 5-25% carbon monoxide CO by volume A mixed gas composed of 95-75% nitrogen N 2 .
  • epoxy resin A and B glue are used as the polymer resin, epoxy resin A and B glue are mixed in a mass ratio of 1:1, and the phosphor powder and mixed glue are mixed in a mass ratio of 1:4 to 1:1 After mixing, the mixture is stirred in a vacuum defoamer for 2.5 minutes. After stirring evenly, it is placed in an oven for drying. The dried material is attached to a plate, such as a plastic plate, through a coating machine.
  • the beneficial effects of the present invention are as follows: 1.
  • the product excitation spectrum covers a wide area, and can be directly excited by visible light without making chips. It greatly enhances the emission intensity of phosphors in the red light region, has strong ability to supplement light for plants, and has high efficiency, which is more conducive to promoting the growth of plants. Can absorb ultraviolet light, thus avoiding the yellowing and disintegration of the film caused by sunlight.
  • the preparation method of the present invention adopts high temperature calcination, and has the advantages of simple preparation method and low cost; the phosphor powder in the obtained film is evenly distributed, and the equipment operation is simple.
  • FIG. 1 is a comparison diagram of the XRD pattern of the Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 1 prepared in Example 1 and the standard card.
  • FIG. 2 is the excitation and emission spectra of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 1 prepared in Example 1.
  • FIG. 2 is the excitation and emission spectra of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 1 prepared in Example 1.
  • Example 3 is a comparison diagram of the XRD pattern of the Y 2 BaAl 4 SiO 12 : Ce, Cr phosphor 2 prepared in Example 2 and the standard card.
  • FIG. 4 is a comparison diagram of the emission spectra of the Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 prepared in Example 2 and the phosphor 1 in Example 1.
  • FIG. 4 is a comparison diagram of the emission spectra of the Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 prepared in Example 2 and the phosphor 1 in Example 1.
  • FIG. 5 is a comparison diagram of the emission spectra of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor powder and epoxy resin glue prepared in Example 3, and phosphor powder 1 and phosphor powder 2.
  • FIG. 6 is a comparison diagram of the emission spectrum of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 4 and the phosphor 2.
  • FIG. 6 is a comparison diagram of the emission spectrum of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 4 and the phosphor 2.
  • FIG. 7 is a comparison diagram of the emission spectra of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 5, and phosphor 1 and phosphor 2.
  • FIG. 7 is a comparison diagram of the emission spectra of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 5, and phosphor 1 and phosphor 2.
  • Figure 9 is a schematic diagram of how we set up the film with the positional relationship of the plants and the sun.
  • the excitation and emission spectra of this sample were then measured, as shown in Figure 2.
  • the excitation spectrum showed the existence of three broad peaks with the excitation peaks at 342 nm, 450 nm, and 600 nm, respectively, and the emission spectrum showed multiple emission peaks, including a narrow one at 692 nm. peak and the highest intensity. From the spectrogram, we can find that Y 1.97 BaAl 3.95 SiO 12 : 0.03Ce, 0.05Cr can be excited by light with wavelengths ranging from 310 to 380 nm, 380 to 520 nm and 520 to 660 nm, and has a wide excitation region.
  • the ultraviolet light is absorbed in the region of 310-380nm, thus avoiding the yellowing and disintegration of the film caused by sunlight; in the luminescence spectrum, the sample emits red light with wavelengths of about 683nm, 692nm, 710nm and 728nm.
  • the weighed raw materials are fully ground and mixed uniformly, put into an alumina crucible, placed in a tube furnace, calcined at a temperature of 1450 °C (5% H 2 and 95% N 2 atmosphere) for 4 hours (preheat temperature of tube furnace 200-300 °C, rate of temperature increase after the raw material was placed in a tube furnace 5 °C / min) , and cooled to room temperature with the furnace to obtain a calcined product; grind the obtained calcined product to obtain phosphor 2.
  • the XRD pattern of phosphor 2 (as shown in Figure 3), the peak shape and position of each peak in the figure correspond to the PDF card one by one, which proves that the phase of the obtained powder is a single phase. Comparing the emission spectrum of phosphor 1 (as shown in FIG. 4 ), we can see that the luminous intensity of phosphor 1 is increased by 46.4% compared to that of phosphor 1 .
  • the glue and phosphor are made into a film in a ratio of 4:1. Specifically: weigh 0.6g of glue A and glue B, add 0.3g of phosphor 2 prepared in Example 2, and then put it into a vacuum defoamer for vacuum stirring (stirring time is 2min30s). Put the mixed mixture into the oven to dry. After 6 hours, the dried film 1 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in Figure 5.
  • the glue and phosphor are made into a film according to the ratio of 7:3. Specifically: weigh 0.525g of glue A and glue B, add 0.45g of the phosphor obtained in Example 2 to the weighed epoxy glue 2. Put it into the vacuum defoamer and stir well. Put the mixed mixture into the oven to dry. After 6 hours, the dried film 2 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in FIG. 6 .
  • the glue and phosphor are made into a film in a ratio of 2:3. Specifically: weigh 0.45g of glue A and glue B, add 0.6g of phosphor 2 prepared in Example 2 to the weighed epoxy resin glue, put it into a vacuum defoaming machine for vacuum stirring . Put the mixed mixture into the oven to dry. After 6 hours, the dried film 3 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in FIG. 7 .
  • the glue and phosphor are made into a film in a ratio of 2:3. Specifically: weigh 0.375g of glue A and glue B, add 0.75g of phosphor 2 prepared in Example 2 to the weighed epoxy resin glue, put it in a vacuum defoaming machine for vacuum stirring . Put the mixed mixture into the oven to dry. After 6 hours, the dried film 4 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in FIG. 8 .
  • the phosphor powder prepared in Example 2 and the photoconversion films prepared in Examples 3, 4, 5, and 6 were compared for the emission intensity excited at 450 nm. From Fig. 5, we can see that the luminescence intensity of the prepared film 1 is 36.9% and 55.2% of that of the phosphors 2 and 1; from Fig. 6, we can see that the luminous intensity of the prepared film 1 is 36.9% and 55.2% of that of the phosphors 2 and 1; 56.6% and 84.7% of Phosphor 1; from Fig. 7 we can see that the luminescence intensity of the prepared film 1 is 71.4% and 107% of that of Phosphor 2 and Phosphor 1; from Fig.
  • the luminous intensity of film 1 is 76.7% and 115% of that of phosphor 2 and phosphor 1. From the above results, it is obvious that as the doping ratio of phosphors increases, the luminous intensity of the film also increases continuously. When the proportion of phosphors in the film is more than 40%, the luminous intensity of the film has exceeded that of phosphor 1. The luminous intensity of the prepared 4 films all exceeded 50% of the luminous intensity of phosphor 2, thus achieving the expected effect. This film can provide plants with strong red light, thereby promoting plant growth.
  • the content of phosphors is 100% concentration, while our films include phosphor concentrations far below 100%. Therefore, by an accurate comparison, i.e. powder and film with the same phosphor concentration, we can clearly see that our film has a higher deep red brightness than phosphor powder, as shown in the spectrum in the attached image .
  • the advantage of the present invention is that the total reflection of light in the phosphor is greatly reduced by the method of wrapping the phosphor with a polymer resin with almost the same refractive index as the phosphor.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Cultivation Of Plants (AREA)

Abstract

Provided is a light conversion film capable of promoting plant growth and a preparation method therefor. The light conversion film contains garnet fluorescent powder with a composition of Y (3-x)Ba xAl (5-x)Si xO 12:mCe 3+,nCr 3+, where 0≤x≤1, m>0, and n>0, and a polymer resin or glass having a refractive index of 1.4-1.65. The garnet fluorescent powder is uniformly dispersed in the polymer resin or the glass. The light conversion film greatly enhances the emission intensity of the fluorescent powder in the red light region and has strong light supplementation ability for plants. The light conversion film is high efficient and is more conducive to the promotion of plant growth.

Description

一种能促进植物生长的光转化膜及其制备方法A kind of photoconversion film capable of promoting plant growth and preparation method thereof 技术领域technical field
本发明属于农业光转换材料技术领域，涉及用于植物生长的光转换膜。The invention belongs to the technical field of agricultural light conversion materials, and relates to a light conversion film for plant growth.
背景技术Background technique
植物在生长和发育的过程中需要光提供能量，因此光的调节是调控植物生长的重要手段之一，植物生长荧光粉是促进植物快速生长和缩短成熟周期的荧光粉。植物对光的吸收主要是通过叶绿素和类胡萝卜素进行，其吸收的光分别为蓝光区域(400nm-500nm)和红光区域的光(600nm-700nm)，光敏色素吸收红光及深红(650nm-750nm)区域的光，分别对应于光向性、光合作用和光形态发生。其中对植物生长最重要的是位于红光区域的光(600nm-700nm)，因为红光在植物开花和成熟阶段影响很大。由于位于这个范围外的光很少被吸收，植物的生长过程中对太阳光的利用率很低。因此，提高植物对光的利用率对植物的生长有着重要的影响，提高植物光能利用率可以大大促进植物的生长速度，提高产量。Plants need light to provide energy in the process of growth and development, so the regulation of light is one of the important means of regulating plant growth. Plants absorb light mainly through chlorophyll and carotenoids, which absorb light in the blue light region (400nm-500nm) and red light region (600nm-700nm), respectively. Phytochromes absorb red light and deep red (650nm). -750nm) region of light, corresponding to phototropism, photosynthesis and photomorphogenesis, respectively. Among them, the most important for plant growth is the light located in the red light region (600nm-700nm), because red light has a great influence on the flowering and mature stages of plants. Since the light located outside this range is rarely absorbed, the utilization rate of sunlight during the growth of plants is very low. Therefore, improving the utilization rate of light by plants has an important impact on the growth of plants. Improving the utilization rate of light energy by plants can greatly promote the growth rate of plants and increase the yield.
目前，促进植物生长的荧光粉绝大多数用于室内植物培育的LED植物灯。为了更好地促进经济作物的生长，LED植物生长灯主要采用高成本的红光荧光粉。但LED植物灯有许多缺点：目前市面上的LED植物灯的光谱曲线与植物光合作用吸收的光谱曲线差异较大，光源能量利用率不高，LED芯片价格高，消耗大量电力资源。从而增加了种植成本和浪费资源。所以室内LED植物生长工厂虽然可以提高农作物产量，但不适用培育一些低经济作物，而这些低经济作物恰恰是人们日常所需的蔬菜水果等，所以LED植物生长灯难以广泛应用。At present, most of the phosphors that promote plant growth are used in LED grow lights for indoor plant cultivation. In order to better promote the growth of economic crops, LED plant growth lights mainly use high-cost red phosphors. However, LED plant lights have many shortcomings: the spectral curve of the current LED plant lights on the market is quite different from the spectral curve absorbed by plant photosynthesis, the energy utilization rate of the light source is not high, the price of LED chips is high, and a lot of power resources are consumed. This increases planting costs and wastes resources. Therefore, although indoor LED plant growth factories can increase crop yield, it is not suitable for cultivating some low-economic crops, and these low-economic crops are just the vegetables and fruits that people need daily, so LED plant growth lights are difficult to be widely used.
还有一种将太阳光转化为红光来促进植物生长的方法，用含有杂环化合物的乙烯薄膜之类的有机红色发光材料将植物覆盖，就像传统的植物乙烯基的房子。然而，太阳光中存在紫外光，紫外光对膜有伤害，从而使得膜变黄和分解。所以该材料在太阳下不稳定性，发射的红光将在3个月内衰减。此外，这种薄膜覆盖植物的方法不能为植物提供强烈的红光，因为薄膜发出的红光有一半向植物外发射。There's also a way to convert sunlight into red light to boost plant growth, by covering plants with organic red-emitting materials like vinyl films containing heterocyclic compounds, like a traditional plant vinyl house. However, ultraviolet light is present in sunlight, which can damage the film, thereby causing the film to yellow and disintegrate. So the material is unstable in the sun and the emitted red light will decay within 3 months. In addition, this method of covering plants with films cannot provide strong red light to the plants because half of the red light emitted by the films is emitted outside the plants.
针对解决以上植物灯的缺点和膜的不稳定性，我们通过以下的思路。首先，仍然利用太阳光是非常重要的，而不是昂贵的LED植物灯。其次，稳定、廉价 的薄膜或平板能有效地将太阳光中的白光转换为红光或深红光。第三，这种薄膜或平板产生的大部分红光或深红光照射在植物上。所以只有将荧光粉制成光转化膜或者平板能够满足上述思路，为植物生长提供更好的条件。因此，设计一种价格低廉且可提高植物对太阳辐射能利用率的新型光转化膜或者平板很有必要并意义重大。In order to solve the shortcomings of the above plant lamps and the instability of the film, we adopt the following ideas. First of all, it is very important to still utilize sunlight instead of expensive LED grow lights. Second, stable, inexpensive films or plates can efficiently convert white light in sunlight to red or deep red light. Third, most of the red or deep red light produced by this film or plate hits the plant. Therefore, only the phosphor powder can be made into a light conversion film or a flat plate to meet the above ideas and provide better conditions for plant growth. Therefore, it is necessary and significant to design a new type of photoconversion film or flat plate that is inexpensive and can improve the utilization rate of solar radiation energy by plants.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提出一种成本低、提高光能利用率的阳光能转化膜，同时给出制备方法。The purpose of the present invention is to provide a solar energy conversion film with low cost and improved utilization of light energy, and at the same time provide a preparation method.
本发明的技术方案：一种能促进植物生长的光转化膜，该光转化膜呈薄膜状，厚度为μm级，含有组成为Y (3-x)Ba xAl (5-x)Si xO 12:mCe，nCr，0≦x≦1、m＞0、n＞0的石榴石荧光粉和折射率为1.4-1.65的聚合物树脂或玻璃，石榴石荧光粉均匀分散在聚合物树脂或玻璃中。 Technical scheme of the present invention: a photoconversion film capable of promoting plant growth, the photoconversion film is in the form of a thin film, with a thickness of μm, and contains Y (3-x) Ba x Al (5-x) Si x O 12 : mCe, nCr, 0≦x≦1, m>0, n>0 garnet phosphors and polymer resin or glass with a refractive index of 1.4-1.65, garnet phosphors are uniformly dispersed in the polymer resin or glass middle.
所述石榴石荧光粉在660-700纳米区域具有最大发射峰。The garnet phosphor has a maximum emission peak in the region of 660-700 nanometers.
所述聚合物树脂为聚碳酸酯或环氧树脂。The polymer resin is polycarbonate or epoxy resin.
步骤1)按表达式Y (3-x)Ba xAl (5-x)Si xO 12:mCe，nCr，0≦x≦1、m＞0、n＞0，各化学组成的化学计量比分别称取以下原料： Step 1) According to the expression Y (3-x) Ba x Al (5-x) Si x O 12 : mCe, nCr, 0≦x≦1, m>0, n>0, the stoichiometric ratio of each chemical composition Weigh out the following raw materials:
钇化合物：采用氧化钇Y 2O 3或含钇的氢氧化物或含钇的硝酸盐、含钇的碳酸盐或含钇的硫酸盐或含钇的磷酸盐； Yttrium compound: use yttrium oxide Y 2 O 3 or yttrium-containing hydroxide or yttrium-containing nitrate, yttrium-containing carbonate or yttrium-containing sulfate or yttrium-containing phosphate;
铝化合物：采用氧化钇Al 2O 3或含铝的氢氧化物或含铝的硝酸盐或含铝的硫酸盐或含铝的磷酸盐； Aluminum compounds: Yttrium oxide Al 2 O 3 or aluminum-containing hydroxide or aluminum-containing nitrate or aluminum-containing sulfate or aluminum-containing phosphate;
钡化合物：采用碳酸钡BaCO 3或含钡的氢氧化物或含钡的硝酸盐或含钡的硫酸盐或含钡的磷酸盐； Barium compounds: barium carbonate BaCO 3, or use of barium hydroxide or barium nitrate or barium sulfate, or barium phosphate;
硅化合物：采用二氧化硅SiO 2或含硅的氢氧化物或含硅的硝酸盐或含硅的碳酸盐或含硅的硫酸盐或含硅的磷酸盐； Silicon compounds: silicon dioxide SiO use or silicon-containing silicon hydroxide or carbonate or nitrate or silicon-containing silicon-containing silicon-containing phosphate or sulfate 2;
铬化合物：采用氧化铬Cr 2O 3或含铬的氢氧化物或含铬的硝酸盐、含铬的碳酸盐或含铬的硫酸盐或含铬的磷酸盐； Chromium compounds: chromium oxide Cr 2 O 3 or chromium hydroxide or chromium nitrate, chromium carbonate or chromium sulfate or chromium phosphate;
铈化合物：采用氧化铈CeO 2或含铈的氢氧化物或含铈的硝酸盐、含铈的的碳酸盐或含铈的硫酸盐或含铈的磷酸盐； Cerium compounds: cerium oxide CeO 2 or using cerium nitrate or a hydroxide containing cerium, cerium-containing carbonate or cerium sulfate or phosphate-containing cerium;
将所称取各原料组分混合在一起研磨至微米级，制得混合原料粉末；The weighed raw material components are mixed together and ground to a micron level to obtain mixed raw material powder;
步骤2)：将步骤1)得到的混合原料粉末置于温度为1400℃-1500℃的还原气氛中煅烧4-5小时；将煅烧后的物料随炉冷却至室温，得到煅烧物；Step 2): the mixed raw material powder obtained in step 1) is placed in a reducing atmosphere with a temperature of 1400°C-1500°C for calcination for 4-5 hours; the calcined material is cooled to room temperature with the furnace to obtain a calcined product;
步骤3：将煅烧物研磨至微米级，制得含有Ce、Cr的石榴石结构的荧光粉，把荧光粉与聚合物树脂按质量比1:4～1:1进行混合，按现有制膜工艺制出光转化膜(通过镀膜机把制得的附着在板材上)。Step 3: Grinding the calcined product to the micron level to obtain a phosphor powder with a garnet structure containing Ce and Cr, mixing the phosphor powder and the polymer resin in a mass ratio of 1:4 to 1:1, and forming a film according to the existing method. The light conversion film is produced by the process (the produced film is attached to the plate by the coating machine).
还原气氛可采用气体为：氨气NH 3，或是按体积百分比由5～25％氢气H 2和95～75％氮气N 2组成的混合气体，或是按体积百分比由5～25％一氧化碳CO和95～75％氮气N 2组成的混合气体。 The reducing atmosphere can be: ammonia NH 3 , or a mixed gas consisting of 5-25% hydrogen H 2 and 95-75% nitrogen N 2 by volume, or 5-25% carbon monoxide CO by volume A mixed gas composed of 95-75% nitrogen N 2 .
优选的是：聚合物树脂采用环氧树脂A、B胶，按质量比1:1的比例将环氧树脂A、B胶混合，将荧光粉和混合胶按质量比1:4～1:1进行混合，然后将混合物在真空脱泡机中搅拌2.5分钟，搅拌均匀以后，置入烘箱内烘干，烘干的物料通过镀膜机附着在板材上，如塑料板。Preferably, epoxy resin A and B glue are used as the polymer resin, epoxy resin A and B glue are mixed in a mass ratio of 1:1, and the phosphor powder and mixed glue are mixed in a mass ratio of 1:4 to 1:1 After mixing, the mixture is stirred in a vacuum defoamer for 2.5 minutes. After stirring evenly, it is placed in an oven for drying. The dried material is attached to a plate, such as a plastic plate, through a coating machine.
进一步的，加4wt％的AlF 3助熔剂，AlF 3与称取的原料一起混合、研磨。 Further, 4wt% of AlF 3 flux was added, and AlF 3 was mixed and ground together with the weighed raw materials.
本发明的有益效果：1、产品激发光谱覆盖区域广，可以直接利用可见光激发，无需制成芯片。大幅增强了荧光粉在红光区的发射强度，对植物补光能力强、效率高，更有利于促进植物的生长。能吸收紫外光，从而避免了太阳光对膜造成的黄变和崩解。The beneficial effects of the present invention are as follows: 1. The product excitation spectrum covers a wide area, and can be directly excited by visible light without making chips. It greatly enhances the emission intensity of phosphors in the red light region, has strong ability to supplement light for plants, and has high efficiency, which is more conducive to promoting the growth of plants. Can absorb ultraviolet light, thus avoiding the yellowing and disintegration of the film caused by sunlight.
2、本发明制备方法采用高温煅烧，具有制备方法简单、成本低；得到的膜中的荧光粉分布均匀，设备操作简单。2. The preparation method of the present invention adopts high temperature calcination, and has the advantages of simple preparation method and low cost; the phosphor powder in the obtained film is evenly distributed, and the equipment operation is simple.
附图说明Description of drawings
图1是实施例1制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉1的XRD图与标准卡片的对照图。 FIG. 1 is a comparison diagram of the XRD pattern of the Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 1 prepared in Example 1 and the standard card.
图2是实施例1制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉1的激发和发射光谱图。 FIG. 2 is the excitation and emission spectra of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 1 prepared in Example 1. FIG.
图3是实施例2制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉2的XRD图谱与标准卡片的对照图。 3 is a comparison diagram of the XRD pattern of the Y 2 BaAl 4 SiO 12 : Ce, Cr phosphor 2 prepared in Example 2 and the standard card.
图4是实施例2制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉2与实施例1中的荧光粉1的发射光谱对照图。 FIG. 4 is a comparison diagram of the emission spectra of the Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 prepared in Example 2 and the phosphor 1 in Example 1. FIG.
图5是实施例3制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉与环氧树脂胶制作的光转化膜与荧光粉1和荧光粉2的发射光谱对照图。 5 is a comparison diagram of the emission spectra of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor powder and epoxy resin glue prepared in Example 3, and phosphor powder 1 and phosphor powder 2.
图6是实施例4制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉2与环氧树脂胶制作的光转化膜与荧光粉2的发射光谱对照图。 FIG. 6 is a comparison diagram of the emission spectrum of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 4 and the phosphor 2. FIG.
图7是实施例5制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉2与环氧树脂胶制作的光转化膜与荧光粉1和荧光粉2的发射光谱对照图。 7 is a comparison diagram of the emission spectra of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 5, and phosphor 1 and phosphor 2. FIG.
图8是实施例6制得的Y 2BaAl 4SiO 12:Ce，Cr荧光粉2与环氧树脂胶制作的光转化膜与荧光粉1和荧光粉2的发射光谱对照图 8 is a comparison diagram of the emission spectra of the light conversion film made of Y 2 BaAl 4 SiO 12 :Ce, Cr phosphor 2 and epoxy resin glue prepared in Example 6, and phosphor 1 and phosphor 2
图9是我们用植物和太阳的位置关系来设置薄膜的示意图。Figure 9 is a schematic diagram of how we set up the film with the positional relationship of the plants and the sun.
具体实施方式detailed description
实施例1Example 1
按Y 1.97BaAl 3.95SiO 12:0.03Ce，0.05Cr化学式所示的化学计量比，称取0.2224g的Y 2O 3、0.1973g的BaCO 3、0.2015g的Al 2O 3、0.0601g的SiO 2、0.0052g的CeO 2和0.0038g的Cr 2O 3，将称取的各原料充分研磨混合均匀后放入氧化铝坩埚，置于管式炉中，在温度为1450℃(体积百分比5％H 2和95％N 2气氛)下煅烧4小时(管式炉预热温度为200-300℃，原料放入管式炉之后的升温速度为5℃/min)，随炉冷却至室温，得煅烧物；研磨所得煅烧物，制得荧光粉1。荧光粉1的XRD图谱如图1所示，图中各峰峰形、峰位与PDF卡片一一对应，证明制得的粉末的物相为单相。 According to the stoichiometric ratio shown by the chemical formula of Y 1.97 BaAl 3.95 SiO 12 : 0.03Ce and 0.05Cr, weigh 0.2224 g of Y 2 O 3 , 0.1973 g of BaCO 3 , 0.2015 g of Al 2 O 3 , and 0.0601 g of SiO 2 , 0.0052g of CeO 2 and 0.0038g of Cr 2 O 3 , the weighed raw materials are fully ground and mixed uniformly, put into an alumina crucible, placed in a tube furnace, at a temperature of 1450 ° C (volume percent 5% H 2 calcined for 4 hours and an atmosphere of 95% N 2) (tube furnace preheating temperature of 200-300 deg.] C, rate of temperature increase after the raw material was placed in a tube furnace 5 ℃ / min), the furnace was cooled to room temperature to yield calcined The obtained calcined product was ground to obtain phosphor 1. The XRD pattern of phosphor 1 is shown in Figure 1. The peak shape and position of each peak in the figure correspond to the PDF card one by one, which proves that the phase of the obtained powder is a single phase.
随后测量该样品的激发和发射光谱，见图2，激发光谱显示存在三个宽峰，激发峰峰值分别位于342nm、450nm和600nm，发射光谱显示了多个发射峰，其中在692nm处存在一个窄峰且强度最高。通过光谱图我们可以发现，Y 1.97BaAl 3.95SiO 12:0.03Ce，0.05Cr可被波长范围在310～380nm、380～520nm和520～660nm的光激发，有着很广的激发区域，而且试样在紫外光310～380nm区域有吸收，从而避免了太阳光对膜造成的黄变和崩解；发光光谱中该试样发出波长约为683nm、692nm、710nm、728nm的红光。 The excitation and emission spectra of this sample were then measured, as shown in Figure 2. The excitation spectrum showed the existence of three broad peaks with the excitation peaks at 342 nm, 450 nm, and 600 nm, respectively, and the emission spectrum showed multiple emission peaks, including a narrow one at 692 nm. peak and the highest intensity. From the spectrogram, we can find that Y 1.97 BaAl 3.95 SiO 12 : 0.03Ce, 0.05Cr can be excited by light with wavelengths ranging from 310 to 380 nm, 380 to 520 nm and 520 to 660 nm, and has a wide excitation region. The ultraviolet light is absorbed in the region of 310-380nm, thus avoiding the yellowing and disintegration of the film caused by sunlight; in the luminescence spectrum, the sample emits red light with wavelengths of about 683nm, 692nm, 710nm and 728nm.
实施例2Example 2
按Y 1.97BaAl 3.95SiO 12:0.03Ce，0.05Cr化学式所示的化学计量比，称取0.2224g的Y 2O 3、0.1973g的BaCO 3、0.2015g的Al 2O 3、0.0601g的SiO 2、0.0052g的CeO 2和0.0038g的Cr 2O 3，再加4wt％的AlF 3为助熔剂，将称取的各原料充分研磨混合均匀后放入氧化铝坩埚，置于管式炉中，在温度为1450℃(5％H 2和95％N 2 气氛)下煅烧4小时(管式炉预热温度为200-300℃，原料放入管式炉之后的升温速度为5℃/min)，随炉冷却至室温，得煅烧物；研磨所得煅烧物，制得荧光粉2。荧光粉2的XRD图谱(如图3所示)，图中各峰峰形、峰位与PDF卡片一一对应，证明制得的粉末的物相为单相，从荧光粉2的发射光谱与荧光粉1的发射光谱的对比(如图4)，我们可以看出荧光粉的发光强度相对于荧光粉1提高了46.4％。 According to the stoichiometric ratio shown by the chemical formula of Y 1.97 BaAl 3.95 SiO 12 : 0.03Ce and 0.05Cr, weigh 0.2224g of Y 2 O 3 , 0.1973g of BaCO 3 , 0.2015g of Al 2 O 3 , and 0.0601g of SiO 2 , 0.0052g of CeO 2 and 0.0038g of Cr 2 O 3 , plus 4wt% of AlF 3 as flux, the weighed raw materials are fully ground and mixed uniformly, put into an alumina crucible, placed in a tube furnace, calcined at a temperature of 1450 ℃ (5% H 2 and 95% N 2 atmosphere) for 4 hours (preheat temperature of tube furnace 200-300 ℃, rate of temperature increase after the raw material was placed in a tube furnace 5 ℃ / min) , and cooled to room temperature with the furnace to obtain a calcined product; grind the obtained calcined product to obtain phosphor 2. The XRD pattern of phosphor 2 (as shown in Figure 3), the peak shape and position of each peak in the figure correspond to the PDF card one by one, which proves that the phase of the obtained powder is a single phase. Comparing the emission spectrum of phosphor 1 (as shown in FIG. 4 ), we can see that the luminous intensity of phosphor 1 is increased by 46.4% compared to that of phosphor 1 .
实施例3Example 3
将胶与荧光粉按照4:1的比例制做膜。具体为：称量A、B胶各0.6g，加入实施例2中制得的0.3g的荧光粉2，随之将其放入真空脱泡机中进行抽真空搅拌(搅拌时间为2min30s)。将搅拌均匀后的混合物放入烘箱内烘干。6h后将烘干好的膜1取出，测量其在450nm处激发下的发射光谱，如图5。The glue and phosphor are made into a film in a ratio of 4:1. Specifically: weigh 0.6g of glue A and glue B, add 0.3g of phosphor 2 prepared in Example 2, and then put it into a vacuum defoamer for vacuum stirring (stirring time is 2min30s). Put the mixed mixture into the oven to dry. After 6 hours, the dried film 1 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in Figure 5.
实施例4Example 4
将胶与荧光粉按照7:3的比例制做膜.具体为：称量A、B胶各0.525g，在称量的环氧树脂胶中加入实施例2中制得的0.45g的荧光粉2，将其放到真空脱泡机中搅拌均匀。将搅拌均匀后的混合物放入烘箱内烘干。6h后将烘干好的膜2取出，测量其在450nm处激发下的发射光谱，如图6。The glue and phosphor are made into a film according to the ratio of 7:3. Specifically: weigh 0.525g of glue A and glue B, add 0.45g of the phosphor obtained in Example 2 to the weighed epoxy glue 2. Put it into the vacuum defoamer and stir well. Put the mixed mixture into the oven to dry. After 6 hours, the dried film 2 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in FIG. 6 .
实施例5Example 5
将胶与荧光粉按照2:3的比例制做膜。具体为：称量A、B胶各0.45g，在称量的环氧树脂胶中加入实施例2中制得的0.6g的荧光粉2，将其放到真空脱泡机中进行抽真空搅拌。将搅拌均匀后的混合物放入烘箱内烘干。6h后将烘干好的膜3取出，测量其在450nm处激发下的发射光谱，如图7。The glue and phosphor are made into a film in a ratio of 2:3. Specifically: weigh 0.45g of glue A and glue B, add 0.6g of phosphor 2 prepared in Example 2 to the weighed epoxy resin glue, put it into a vacuum defoaming machine for vacuum stirring . Put the mixed mixture into the oven to dry. After 6 hours, the dried film 3 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in FIG. 7 .
实施例6Example 6
将胶与荧光粉按照2:3的比例制做膜。具体为：称量A、B胶各0.375g，在称量的环氧树脂胶中加入实施例2中制得的0.75g的荧光粉2，将其放到真空脱泡机中进行抽真空搅拌。将搅拌均匀后的混合物放入烘箱内烘干。6h后将烘干好的膜4取出，测量其在450nm处激发下的发射光谱，如图8。The glue and phosphor are made into a film in a ratio of 2:3. Specifically: weigh 0.375g of glue A and glue B, add 0.75g of phosphor 2 prepared in Example 2 to the weighed epoxy resin glue, put it in a vacuum defoaming machine for vacuum stirring . Put the mixed mixture into the oven to dry. After 6 hours, the dried film 4 was taken out, and its emission spectrum under excitation at 450 nm was measured, as shown in FIG. 8 .
实施例2中制得的荧光粉和实施例3、4、5、6制得的光转化膜在450nm处激发的发射强度进行对比。从图5中我们可以看出所制备的膜1的发光强度为荧光粉2和荧光粉1的36.9％和55.2％；从图6中我们可以看出所制备的膜1的发 光强度为荧光粉2和荧光粉1的56.6％和84.7％；从图7中我们可以看出所制备的膜1的发光强度为荧光粉2和荧光粉1的71.4％和107％；从图7中我们可以看出所制备的膜1的发光强度为荧光粉2和荧光粉1的76.7％和115％。从以上得出的结果很明显的发现随荧光粉的掺杂比例上升，膜的发光强度也不断上升，当膜中荧光粉的比例为40％以上时，膜的发光强度已经超过了荧光粉1的发光强度，所制备的4个膜的发光强度均超过了荧光粉2的发光强度的50％，因此达到了预期效果，这种膜可以为植物提供强的红光，从而促进植物生长。The phosphor powder prepared in Example 2 and the photoconversion films prepared in Examples 3, 4, 5, and 6 were compared for the emission intensity excited at 450 nm. From Fig. 5, we can see that the luminescence intensity of the prepared film 1 is 36.9% and 55.2% of that of the phosphors 2 and 1; from Fig. 6, we can see that the luminous intensity of the prepared film 1 is 36.9% and 55.2% of that of the phosphors 2 and 1; 56.6% and 84.7% of Phosphor 1; from Fig. 7 we can see that the luminescence intensity of the prepared film 1 is 71.4% and 107% of that of Phosphor 2 and Phosphor 1; from Fig. 7 we can see that the prepared The luminous intensity of film 1 is 76.7% and 115% of that of phosphor 2 and phosphor 1. From the above results, it is obvious that as the doping ratio of phosphors increases, the luminous intensity of the film also increases continuously. When the proportion of phosphors in the film is more than 40%, the luminous intensity of the film has exceeded that of phosphor 1. The luminous intensity of the prepared 4 films all exceeded 50% of the luminous intensity of phosphor 2, thus achieving the expected effect. This film can provide plants with strong red light, thereby promoting plant growth.
最后，我们添加一条重要的注释。荧光粉的含量有百分之百的浓度，而我们的薄膜包括荧光粉浓度远远低于百分之百。因此，通过精确的比较，即粉末和具有相同荧光粉浓度的薄膜的比较，我们可以清楚地看到，我们的薄膜比荧光粉粉末具有更高的深红色亮度，如附图中谱图所示。本发明的优点是通过与荧光粉折射率几乎相同的聚合物树脂包绕荧光粉的方法，大大降低了荧光粉中发光的全反射。Finally, we add an important note. The content of phosphors is 100% concentration, while our films include phosphor concentrations far below 100%. Therefore, by an accurate comparison, i.e. powder and film with the same phosphor concentration, we can clearly see that our film has a higher deep red brightness than phosphor powder, as shown in the spectrum in the attached image . The advantage of the present invention is that the total reflection of light in the phosphor is greatly reduced by the method of wrapping the phosphor with a polymer resin with almost the same refractive index as the phosphor.

Claims (7)

  1. 一种能促进植物生长的光转化膜，其特征是：该光转化膜呈薄膜状，厚度为μm级，含有组成为Y (3-x)Ba xAl (5-x)Si xO 12:mCe，nCr，0≦x≦1、m＞0、n＞0的石榴石荧光粉和折射率为1.4-1.65的聚合物树脂或玻璃，石榴石荧光粉均匀分散在聚合物树脂或玻璃中。 A photoconversion film capable of promoting plant growth, characterized in that: the photoconversion film is in the form of a thin film, with a thickness of μm, and contains Y (3-x) Ba x Al (5-x) Si x O 12 : The garnet phosphor with mCe, nCr, 0≦x≦1, m>0, n>0 and the polymer resin or glass with a refractive index of 1.4-1.65, the garnet phosphor is uniformly dispersed in the polymer resin or glass.
  2. 根据权利要求1所述的一种能促进植物生长的光转化膜，其特征是：所述石榴石荧光粉在660-700纳米区域具有最大发射峰。The photoconversion film capable of promoting plant growth according to claim 1, wherein the garnet phosphor has a maximum emission peak in the region of 660-700 nanometers.
  3. 根据权利要求1所述的一种能促进植物生长的光转化膜，其特征是：所述聚合物树脂为聚碳酸酯或环氧树脂。The photoconversion film capable of promoting plant growth according to claim 1, wherein the polymer resin is polycarbonate or epoxy resin.
  4. 一种能促进植物生长的光转化膜的制备方法，其特征是：步骤1)按表达式Y (3-x)Ba xAl (5-x)Si xO 12:mCe，nCr，0≦x≦1、m＞0、n＞0，各化学组成的化学计量比分别称取以下原料： A method for preparing a photoconversion film capable of promoting plant growth, characterized in that: step 1) according to the expression Y (3-x) Ba x Al (5-x) Si x O 12 : mCe, nCr, 0≦x ≦1, m>0, n>0, the stoichiometric ratios of each chemical composition were weighed as follows:
    钇化合物：采用氧化钇Y 2O 3或含钇的氢氧化物或含钇的硝酸盐、含钇的碳酸盐或含钇的硫酸盐或含钇的磷酸盐； Yttrium compound: use yttrium oxide Y 2 O 3 or yttrium-containing hydroxide or yttrium-containing nitrate, yttrium-containing carbonate or yttrium-containing sulfate or yttrium-containing phosphate;
    铝化合物：采用氧化钇Al 2O 3或含铝的氢氧化物或含铝的硝酸盐或含铝的硫酸盐或含铝的磷酸盐； Aluminum compounds: Yttrium oxide Al 2 O 3 or aluminum-containing hydroxide or aluminum-containing nitrate or aluminum-containing sulfate or aluminum-containing phosphate;
    钡化合物：采用碳酸钡BaCO 3或含钡的氢氧化物或含钡的硝酸盐或含钡的硫酸盐或含钡的磷酸盐； Barium compounds: barium carbonate BaCO 3, or use of barium hydroxide or barium nitrate or barium sulfate, or barium phosphate;
    硅化合物：采用二氧化硅SiO 2或含硅的氢氧化物或含硅的硝酸盐或含硅的碳酸盐或含硅的硫酸盐或含硅的磷酸盐； Silicon compounds: silicon dioxide SiO use or silicon-containing silicon hydroxide or carbonate or nitrate or silicon-containing silicon-containing silicon-containing phosphate or sulfate 2;
    铬化合物：采用氧化铬Cr 2O 3或含铬的氢氧化物或含铬的硝酸盐、含铬的碳酸盐或含铬的硫酸盐或含铬的磷酸盐； Chromium compounds: chromium oxide Cr 2 O 3 or chromium hydroxide or chromium nitrate, chromium carbonate or chromium sulfate or chromium phosphate;
    铈化合物：采用氧化铈CeO 2或含铈的氢氧化物或含铈的硝酸盐、含铈的的碳酸盐或含铈的硫酸盐或含铈的磷酸盐； Cerium compounds: cerium oxide CeO 2 or using cerium nitrate or a hydroxide containing cerium, cerium-containing carbonate or cerium sulfate or phosphate-containing cerium;
    将所称取各原料组分混合在一起研磨至微米级，制得混合原料粉末；The weighed raw material components are mixed together and ground to a micron level to obtain mixed raw material powder;
    步骤2)：将步骤1)得到的混合原料粉末置于温度为1400℃-1500℃的还原气氛中煅烧4-5小时；将煅烧后的物料随炉冷却至室温，得到煅烧物；Step 2): the mixed raw material powder obtained in step 1) is placed in a reducing atmosphere with a temperature of 1400°C-1500°C for calcination for 4-5 hours; the calcined material is cooled to room temperature with the furnace to obtain a calcined product;
    步骤3：将煅烧物研磨至微米级，制得含有Ce、Cr的石榴石结构的荧光粉，把荧光粉与聚合物树脂按质量比1:4～1:1进行混合，按现有制膜工艺制出光转化膜。Step 3: Grinding the calcined product to the micron level to obtain a phosphor powder with a garnet structure containing Ce and Cr, mixing the phosphor powder and the polymer resin in a mass ratio of 1:4 to 1:1, and forming a film according to the existing method. Process to produce a light conversion film.
  5. 如权利要求4所述的一种能促进植物生长的光转化膜的制备方法，其特征是：还原气氛采用气体为：氨气NH 3，或是按体积百分比由5～25％氢气H 2和95～75％氮气N 2组成的混合气体，或是按体积百分比由5～25％一氧化碳CO和95～75％氮气N 2组成的混合气体。 The method for preparing a photoconversion film capable of promoting plant growth according to claim 4, wherein the gas used in the reducing atmosphere is: ammonia NH 3 , or 5-25% hydrogen H 2 and A mixed gas consisting of 95-75% nitrogen N 2 , or a mixed gas consisting of 5-25% carbon monoxide CO and 95-75% nitrogen N 2 by volume percentage.
  6. 如权利要求4所述的一种能促进植物生长的光转化膜的制备方法，其特征是：聚合物树脂采用环氧树脂A、B胶，按质量比1:1的比例将环氧树脂A、B胶混合，将荧光粉和混合胶按质量比1:4～1:1进行混合，然后将混合物在真空脱泡机中搅拌2.5分钟，搅拌均匀以后，置入烘箱内烘干，烘干的物料通过镀膜机附着在板材上。The preparation method of a photoconversion film capable of promoting plant growth as claimed in claim 4, characterized in that: the polymer resin adopts epoxy resin A and B glue, and epoxy resin A is prepared by mass ratio of 1:1. , B glue, mix the phosphor powder and the mixed glue according to the mass ratio of 1:4 to 1:1, and then stir the mixture in a vacuum defoaming machine for 2.5 minutes. After stirring evenly, put it in an oven for drying. The material is attached to the plate by the coating machine.
  7. 如权利要求4所述的一种能促进植物生长的光转化膜的制备方法，其特征是：加4wt％的AlF 3助熔剂，AlF 3与称取的原料一起混合、研磨。 The method for preparing a photoconversion film capable of promoting plant growth as claimed in claim 4, characterized in that 4wt% of AlF 3 flux is added, and the AlF 3 and the weighed raw materials are mixed and ground together.
PCT/CN2021/104104 2020-07-03 2021-07-01 Light conversion film capable of promoting plant growth and preparation method therefor WO2022002217A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010630215.7A CN111876145A (en) 2020-07-03 2020-07-03 Light conversion film capable of promoting plant growth and preparation method thereof
CN202010630215.7 2020-07-03

Publications (1)

Publication Number Publication Date
WO2022002217A1 true WO2022002217A1 (en) 2022-01-06

Family

ID=73150881

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/104104 WO2022002217A1 (en) 2020-07-03 2021-07-01 Light conversion film capable of promoting plant growth and preparation method therefor

Country Status (2)

Country Link
CN (1) CN111876145A (en)
WO (1) WO2022002217A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115305088A (en) * 2022-08-22 2022-11-08 杭州爱视芙健康科技有限公司 Garnet structure-derived fluorescent powder material and preparation method and application thereof

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111876145A (en) * 2020-07-03 2020-11-03 甘肃颐年商贸有限责任公司 Light conversion film capable of promoting plant growth and preparation method thereof
CN112625682A (en) * 2020-12-09 2021-04-09 北京科技大学 Cr3+Doped phosphate-based far-red light-near infrared luminescent material and preparation method thereof
CN112779010B (en) * 2021-01-27 2022-03-29 中国科学院长春应用化学研究所 Near-infrared luminescent material, preparation method thereof and near-infrared LED
CN113088283A (en) * 2021-04-16 2021-07-09 兰州大学 Novel fluorescent powder capable of promoting plant growth under sunlight and preparation method thereof
CN113105895A (en) * 2021-04-16 2021-07-13 兰州大学 Fluorescent powder capable of promoting plant growth and preparation method thereof
CN113150783B (en) * 2021-04-27 2022-11-01 中国科学院长春应用化学研究所 Color-adjustable afterglow luminescent material, preparation method thereof and lighting product
CN113402744B (en) * 2021-05-06 2022-11-08 甘肃颐年聚光科技有限责任公司 Light conversion film capable of promoting plant growth and preparation method and application thereof
CN113248926B (en) * 2021-05-06 2023-11-24 甘肃颐年商贸有限责任公司 Red light conversion film capable of promoting plant growth and preparation method thereof
CN114920463A (en) * 2022-03-11 2022-08-19 上海应用技术大学 Garnet type fluorescent glass ceramic and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129351A1 (en) * 2016-01-26 2017-08-03 Merck Patent Gmbh A composition, color converting sheet and light emitting diode device
CN110157430A (en) * 2019-05-23 2019-08-23 兰州大学 One plant growth fluorescent powder and preparation method thereof
CN110373191A (en) * 2019-08-12 2019-10-25 宁波市镇海中学 A kind of red illuminating material and preparation method thereof, application
CN111205868A (en) * 2020-01-19 2020-05-29 兰州大学 Fluorescent powder capable of promoting plant growth, preparation thereof and light conversion film prepared from fluorescent powder
CN111876145A (en) * 2020-07-03 2020-11-03 甘肃颐年商贸有限责任公司 Light conversion film capable of promoting plant growth and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017129351A1 (en) * 2016-01-26 2017-08-03 Merck Patent Gmbh A composition, color converting sheet and light emitting diode device
CN110157430A (en) * 2019-05-23 2019-08-23 兰州大学 One plant growth fluorescent powder and preparation method thereof
CN110373191A (en) * 2019-08-12 2019-10-25 宁波市镇海中学 A kind of red illuminating material and preparation method thereof, application
CN111205868A (en) * 2020-01-19 2020-05-29 兰州大学 Fluorescent powder capable of promoting plant growth, preparation thereof and light conversion film prepared from fluorescent powder
CN111876145A (en) * 2020-07-03 2020-11-03 甘肃颐年商贸有限责任公司 Light conversion film capable of promoting plant growth and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115305088A (en) * 2022-08-22 2022-11-08 杭州爱视芙健康科技有限公司 Garnet structure-derived fluorescent powder material and preparation method and application thereof
CN115305088B (en) * 2022-08-22 2024-05-14 杭州爱视芙健康科技有限公司 Garnet structure-based derived fluorescent powder material and preparation method and application thereof

Also Published As

Publication number Publication date
CN111876145A (en) 2020-11-03

Similar Documents

Publication Publication Date Title
WO2022002217A1 (en) Light conversion film capable of promoting plant growth and preparation method therefor
CN109874803B (en) Fluorescent powder capable of promoting plant growth and preparation method thereof
CN110157430A (en) One plant growth fluorescent powder and preparation method thereof
WO2022218420A1 (en) New fluorescent powder capable of promoting plant growth under sunlight, and preparation and use thereof
CN113402744B (en) Light conversion film capable of promoting plant growth and preparation method and application thereof
CN113174256B (en) Mn (manganese)4+Doped red fluorescent powder and preparation method thereof
CN111205868A (en) Fluorescent powder capable of promoting plant growth, preparation thereof and light conversion film prepared from fluorescent powder
WO2022218431A1 (en) Fluorescent powder capable of promoting plant growth, and preparation method and use therefor
WO2022088269A1 (en) Full-spectrum fluorescence conversion material having garnet structure and preparation method therefor
CN115466620A (en) Sodium europium gallium germanium garnet-based high-efficiency deep red light fluorescent powder and preparation method thereof
CN113248926B (en) Red light conversion film capable of promoting plant growth and preparation method thereof
CN111560247A (en) Nitride fluorescent powder capable of emitting dark red light for agricultural illumination and preparation method thereof
CN106753347A (en) A kind of near ultraviolet excitated red fluorescence powder and preparation method thereof
CN106010520B (en) A kind of near ultraviolet excitated red fluorescence powder and its preparation method and application
CN110205120A (en) A kind of near ultraviolet excitated mixture red fluorescence powder, preparation method and application
CN105647533A (en) Novel nitric oxide red phosphor and preparation method thereof
CN104059640A (en) Preparation methods of borate fluorescent powder matrix and fluorescent powder
CN111269718B (en) Composite perovskite type deep red fluorescent powder and preparation method and application thereof
CN114540013A (en) Lifting CaO Eu2+Method for luminous intensity and thermal stability of near-infrared fluorescent powder and application thereof
CN113528137A (en) Mn-doped deep red luminescent material for LED plant growth and preparation method and application thereof
CN109810705B (en) Europium-doped barium magnesium niobate red fluorescent powder and preparation method thereof
CN112625684A (en) Deep red niobate fluorescent powder for agricultural illumination and preparation method thereof
CN112410029A (en) Plant growth lamp used deep red fluorescent powder and preparation method thereof
CN111410955A (en) Preparation method of red fluorescent powder
CN110343523A (en) A kind of Mn4+Tantalates red fluorescence powder of doping and its preparation method and application

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21832091

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21832091

Country of ref document: EP

Kind code of ref document: A1