CN107474830A - A kind of light conversion agent and preparation method thereof and agricultural blue conversion film and preparation method thereof - Google Patents
A kind of light conversion agent and preparation method thereof and agricultural blue conversion film and preparation method thereof Download PDFInfo
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- CN107474830A CN107474830A CN201710495185.1A CN201710495185A CN107474830A CN 107474830 A CN107474830 A CN 107474830A CN 201710495185 A CN201710495185 A CN 201710495185A CN 107474830 A CN107474830 A CN 107474830A
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- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
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Abstract
The invention belongs to light conversion agent and film to turn light technical field.A kind of light conversion agent, chemical composition are：Ca3B5O10Cl:Eu2+.The beneficial effects of the invention are as follows light conversion agent chemical stability is good, light conversion efficiency is high, service life length, available for producing agricultural blue Light Film.
Description
Technical field
The invention belongs to light conversion agent and film to turn light technical field, turns more particularly to a kind of light conversion agent and with agricultural blueness
Light film.
Background technology
Substantial amounts of experimental study proves, is irradiated in the solar spectrum of earth surface, and not the light of all wavelengths is all to planting
Thing growth is favourable, from the point of view of the absorption spectrum of chlorophyll a, chlorophyll b, lutein and carotenoid, wherein most beneficial for plant
Growth be positioned at 400~500nm blue violet light and the blood orange light positioned at 600~680nm, and below 380nm ultraviolet light and
500~600nm green glow is not absorbed by plant substantially.Particularly blue violet light can strengthen the activity of chloroplaset, help plant
Long stem leaf, relatively it is adapted to succulent, cauline leaf class, is used suitable for plants such as plant seedling nursery, dendrobium candidums；And blood orange light
Plant growth can be promoted, germinate, bloom, as a result, leading role is played in plant growth, promotes photosynthesis of plant, more
It is adapted to the growth of flowers fruit and vegetable.
At present, there is a situation where largely to use greenhouse film in the cultivation of succulent and stem leaf type plant, these are big
Canopy film mainly plays insulation, but the use of common greenhouse film can substantially reduce illumination of the sunshine to plant body
Intensity, suppress the speed of growth and development of plants, therefore, the agricultural conversion film that one kind has light translation function obtains in agricultural production
Obtained tremendous popularity.For agricultural conversion film, its most important core technology is the research and development of light conversion agent, but existing
The light conversion agent report for having document to turn feux rouges for ultraviolet is more, and less to the ultraviolet light conversion agent report for turning blue light, particularly pair
Blue light conversion agent for agricultural conversion film only has a smaller number of report.For example Wang Jiaguo of Wenzhou University et al. is in middle promulgated by the State Council
A kind of blue light conversion agent is disclosed in bright patent (application number 200810061962.2), main composition is (Ca, Sr)2B5O9Cl:Eu2+,
The main launch wavelength of the light conversion agent is located at 420~450nm, and its shortcoming is that launch wavelength is too short, and the absworption peak of chlorophyll b is located at
More than 450nm, it is unfavorable for the absorption of chlorophyll b；Hu Guangqi of Fushan Anyi Nano Materials Co., Ltd et al. is in Chinese invention
A kind of double-function light conversion agent is disclosed in patent (application number 201210335278.5), main composition is Ca1-xNxF2:Eu, TM, its
In：One or more in 0≤x≤1, N Ba, Zn, Sr, Mg, Hg and Fe, TM be selected from Sm, Cu, Pr, Tb, Ce, La, Dy,
One or more in Mn and Ag.Bifunctional light conversion thin film can be by the ultraviolet light (300nm~380nm) and green glow in sunshine
(520nm-560nm) at the same be converted into promoting crop growth blue light (400nm~500nm) and blood orange light (575nm~
630nm), its deficiency is to need to launch while taking into account blue light and blood orange light, and the conversion efficiency of blue light is relatively low, and fluoride exists
Hydrolysis easily occurs during use and causes to lose light conversion effect so that the service life of conversion film is shorter.
The content of the invention
In order to overcome above-mentioned the shortcomings of the prior art, it is an object of the present invention to provide a kind of chemical stability
Light conversion agent good, light conversion efficiency is high and preparation method thereof；Another object of the present invention is to provide use above-mentioned light conversion agent
Agricultural blue conversion film and preparation method thereof.
To solve above-mentioned the deficiencies in the prior art, the technical solution adopted in the present invention is as follows：A kind of light conversion agent, chemical group
Turn into：Ca3B5O10Cl:Eu2+。
A kind of light conversion agent preparation method, comprises the following steps：(1) according to 1:3 mol ratio weighs Eu (NO3)3It is former with urea
Material, and it is dissolved into deionized water simultaneously, Eu in the solution configured2+Ion concentration is 0.5~1mol/L；(2) by change
Metering is learned than weighing required CaCO3、CaCl2、H3BO3With the NH of excess4Cl powder, then measure Eu (NO from step (1)3)3
And urea liquid, by all raw materials in agate mortar ground and mixed uniformly to colloidal；(3) above-mentioned colloid is transferred to corundum
In crucible, and crucible is put into and had been warmed up into 600~800 DEG C of Muffle furnace；Solution combustion is to complete, after being cooled to room temperature
Grind and produce light conversion agent.
Agricultural blue conversion film, including film matrix and light conversion agent, the chemical composition of light conversion agent are：Ca3B5O10Cl:Eu2+。
Preferably, the film matrix composition is polyethylene, polyvinyl chloride, ethylene-vinyl acetate copolymer, polypropylene
In one or more combination.
The preparation method of agricultural blue conversion film, comprises the following steps：(1) prepared by blue light conversion master batch, by weight percentage
Than weighing light conversion agent 10~30%, film matrix resin 60~80%, other modified additives 0~20%, then 150~200
DEG C plasticator in be well mixed, finally extruded using comminutor, air-cooled granulation is fabricated to blue light conversion master batch；(2) conversion film
Prepare, weigh blue light conversion master batch 1~10% by weight percentage, film base material 90~99%, stirred in batch mixer
It is well mixed, it is then fed into extruder, by the melting, plasticizing and extrusion of extruder, obtains agricultural blue conversion film.
Preferably, described other modified additives be salicylic acid to tert-butyl benzene vinegar, 2, it is 6 BHTs, poly-
One or more in ethylene waxes and erucyl amide.
Compared with prior art, the beneficial effects of the invention are as follows：(1) light conversion agent chemical stability provided by the invention it is good,
Light conversion efficiency is high, service life length, available for producing agricultural blue Light Film；(2) blue conversion film provided by the invention can incite somebody to action
Ultraviolet light is converted to 400~500nm blue violet light, and its emission peak is located at 460nm or so, is advantageous to chlorophyll a and chlorophyll b
Absorb, the cultivation especially suitable for succulent and stem leaf type plant.
Brief description of the drawings
Fig. 1 is light conversion agent excitation spectrum provided in an embodiment of the present invention and emission spectrum.
Embodiment
The present invention is described in further detail with reference to Figure of description 1 and specific embodiment.
Embodiment
A kind of light conversion agent, chemical composition are：Ca3B5O10Cl:Eu2+.Light conversion agent preparation method comprises the following steps：(1) press
According to 1:3 mol ratio weighs Eu (NO3)3With urea raw material, and it is dissolved into a certain amount of deionized water simultaneously, configured
Solution in Eu2+Ion concentration is 0.5~1mol/L；(2) required CaCO is stoichiometrically weighed3、CaCl2、H3BO3With
Excessive NH4Cl powder, then from step (1) measured amounts Eu (NO3)3And urea liquid, all raw materials are ground in agate
Ground and mixed is uniformly to colloidal in alms bowl；(3) above-mentioned colloid is transferred in corundum crucible, and crucible is put into rapidly pre-
Heat is into 600~800 DEG C of Muffle furnace.With the progress of reaction, solution burns rapidly, and with a large amount of ammonias and carbon monoxide
Release, the after-combustion of about 1 hour is cooled to grind the sample of acquisition after room temperature to produce and required turns light to complete
Agent.
Agricultural blue conversion film, including film matrix and light conversion agent.Preparation method comprises the following steps：(1) blue light conversion
Prepared by master batch, weigh light conversion agent 10% by weight percentage, film matrix resin 80%, salicylic acid to tert-butyl benzene vinegar 5%, 2,
6 BHTs 5%, then it is well mixed, is finally extruded using comminutor, air-cooled granulation in 150 DEG C of plasticator
It is fabricated to blue light conversion master batch；(2) prepared by conversion film, weighs blue light conversion master batch 1%, film base material by weight percentage
99%, it is uniformly mixed, is then fed into extruder in batch mixer, by the melting, plasticizing and extrusion of extruder, is obtained
Agricultural blue conversion film.
Dotted line is the light conversion agent excitation spectrum that embodiment 1 provides in Fig. 1, and solid line is light conversion agent emission spectrum.
Without using the romaine lettuce A of film plantation, the romaine lettuce B planted using commercial membrane and use agricultural blueness manufactured in the present embodiment
The romaine lettuce C of conversion film plantation carries out Growth of Lettuce index Test.Growth of Lettuce index dynamic measure explanation：Randomly select 20 plants of samples
The close romaine lettuce of this parameter, is repeated 3 times, and measurement romaine lettuce plant height, strain width, leaf are long, leaf width.Portion above and below the ground is first weighed after sampling
Fresh weight, its dry weight is surveyed after then being dried to constant weight in 60 DEG C of baking ovens；Chlorophylls and Carotenoids assay is using light splitting light
Degree method；Crude protein content measure uses Coomassie brilliant G-250 decoration method；Vc assays use AAS；It is soluble
Sugared content measure uses anthrone colorimetry；Nitrate content measure uses ultraviolet spectrophotometry.Experiment is that experiment of single factor is set
Meter scheme, mean except the different of film or whether there is film, other condition is basically identical, so these indexs are if significance difference
It is different, all it is as caused by the difference of film, number of days is after planting 40 days, test data table 1 below.
Table 1：
Without using the cucumber A of film plantation, the cucumber B planted using commercial membrane and use agricultural blueness manufactured in the present embodiment
The cucumber C of conversion film plantation carries out cucumber growth index Test.Growth of Lettuce index dynamic measure explanation：Randomly select 20 plants of samples
The close romaine lettuce of this parameter, is repeated 3 times.12 days after nursery, test data table 2 below.
Table 2：
| Cucumber A | Cucumber B | Cucumber C | |
| Photosynthetic rate [μm ol/ (m2*s)] | 2.53±0.11 | 3.18±0.13 | 3.45±0.1 |
| Transpiration rate [mol/ (m2*s)] | 2.73±0.14 | 3.2±0.14 | 3.59±0.21 |
| Leaf area (cm2) | 37.47±0.29 | 41.1±0.81 | 42.92±1.51 |
| Root long (cm) | 19.33±2.14 | 18.76±2.88 | 19.18±2.24 |
| Plant height (cm) | 11.27±0.54 | 7.81±0.09 | 6.98±0.15 |
It can be seen that in small seedling stage, cucumber C seedling photosynthesis is stronger, and transpiration is equally also stronger.Due to cucumber A
Illumination is not used, and seedling has certain excessive growth.
Claims (6)
1. a kind of light conversion agent, it is characterised in that chemical composition is：Ca3B5O10Cl:Eu2+。
2. a kind of light conversion agent preparation method, it is characterised in that comprise the following steps：(1) according to 1:3 mol ratio weighs Eu (NO3)3
With urea raw material, and it is dissolved into deionized water simultaneously, Eu in the solution configured2+Ion concentration is 0.5~1mol/L；
(2) required CaCO is stoichiometrically weighed3、CaCl2、H3BO3With the NH of excess4Cl powder, then measure Eu from step (1)
(NO3)3And urea liquid, by all raw materials in agate mortar ground and mixed uniformly to colloidal；(3) above-mentioned colloid is shifted
Into corundum crucible, and crucible is put into and had been warmed up into 600~800 DEG C of Muffle furnace；Solution combustion is cooled to complete
Ground after room temperature and produce light conversion agent.
3. agricultural blue conversion film, including film matrix and light conversion agent, it is characterised in that the chemical composition of light conversion agent is：
Ca3B5O10Cl:Eu2+。
4. the agricultural blue conversion film of one kind according to claim 3, it is characterised in that the film matrix composition is poly- second
One or more combination in alkene, polyvinyl chloride, ethylene-vinyl acetate copolymer, polypropylene.
5. the preparation method of agricultural blue conversion film, it is characterised in that blue conversion film is as claimed in claim 3, preparation method bag
Include following steps：(1) prepared by blue light conversion master batch, weighs light conversion agent 10~30%, film matrix resin 60 by weight percentage
~80%, other modified additives 0~20%, then it is well mixed in 150~200 DEG C of plasticator, finally utilizes comminutor
Extrusion, air-cooled granulation are fabricated to blue light conversion master batch；(2) conversion film prepare, weigh by weight percentage blue light conversion master batch 1~
10%, film base material 90~99%, it is uniformly mixed, is then fed into extruder in batch mixer, by extruder
Melting, plasticizing and extrusion, obtain agricultural blue conversion film.
6. the preparation method of agricultural blue conversion film according to claim 5, it is characterised in that described other modifications help
Agent is salicylic acid to the one or more in tert-butyl benzene vinegar, 2,6 BHTs, Tissuemat E and erucyl amide.
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| CN201710495185.1A CN107474830A (en) | 2017-06-26 | 2017-06-26 | A kind of light conversion agent and preparation method thereof and agricultural blue conversion film and preparation method thereof |
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| CN201710495185.1A CN107474830A (en) | 2017-06-26 | 2017-06-26 | A kind of light conversion agent and preparation method thereof and agricultural blue conversion film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962422A (en) * | 2019-11-21 | 2020-04-07 | 徐蕾 | Light conversion film, multilayer light conversion film and preparation method of multilayer light conversion film |
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|---|---|---|---|---|
| CN101289561A (en) * | 2008-06-02 | 2008-10-22 | 温州大学 | Light conversion film material and method for preparing same |
| CN102848683A (en) * | 2012-09-25 | 2013-01-02 | 天津市天塑科技集团有限公司第二塑料制品厂 | Coating-type light conversion film and preparation method thereof |
| CN105295188A (en) * | 2015-11-17 | 2016-02-03 | 佛山安亿纳米材料有限公司 | Nitride red light conversion film and preparation method thereof |
| CN105385014A (en) * | 2015-12-11 | 2016-03-09 | 华南农业大学 | Light conversion agricultural film, and making method and application thereof |
-
2017
- 2017-06-26 CN CN201710495185.1A patent/CN107474830A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289561A (en) * | 2008-06-02 | 2008-10-22 | 温州大学 | Light conversion film material and method for preparing same |
| CN102848683A (en) * | 2012-09-25 | 2013-01-02 | 天津市天塑科技集团有限公司第二塑料制品厂 | Coating-type light conversion film and preparation method thereof |
| CN105295188A (en) * | 2015-11-17 | 2016-02-03 | 佛山安亿纳米材料有限公司 | Nitride red light conversion film and preparation method thereof |
| CN105385014A (en) * | 2015-12-11 | 2016-03-09 | 华南农业大学 | Light conversion agricultural film, and making method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈栋华等: "蓝色荧光粉Ca2B5O9Cl:Eu2+的甘氨酸燃烧法合成及其发光性能", 《中南民族大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962422A (en) * | 2019-11-21 | 2020-04-07 | 徐蕾 | Light conversion film, multilayer light conversion film and preparation method of multilayer light conversion film |
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