CN103168644B

CN103168644B - Plant cover cultivation methods

Info

Publication number: CN103168644B
Application number: CN201210209508.3A
Authority: CN
Inventors: 陈焰; 方利浮; 郑明东; 刘晓瑭; 胡广齐
Original assignee: FOSHAN ONMILLION NANO MATERIALS Co Ltd
Current assignee: FOSHAN ONMILLION NANO MATERIALS Co Ltd
Priority date: 2012-06-22
Filing date: 2012-06-22
Publication date: 2015-08-05
Anticipated expiration: 2032-06-22
Also published as: CN103168644A

Abstract

The invention discloses a kind of plant cover cultivation methods, it is characterized in that, utilize light conversion film to make booth or mulch film, form a plant-growth space; Described light conversion film comprises film matrix, ruddiness light-converting agent and the first auxiliary agent; Described ruddiness light-converting agent weight is the 0.1-10% of film weight; First auxiliary agent weight is the 0.1%-10% of film weight; All the other are film matrix; The composition general formula of described ruddiness light-converting agent is: Ca _1-xm _xs:TM; Wherein, 0≤x<1; M is one or more in Mg, Ba, Sr, Zn, Cd, Hg; TM is one or more in Sm, Ce, Y, Gd, La, Pr, Eu, Cu, Mn.Light-converting film in the present invention and photosynthesis of plant Spectral matching good.Use light-converting film to apply the implantation methods of carbonic acid gas simultaneously, matter is increased to plant yield-increasing and plays very large effect, disease-free, without insect pest, without chemical pesticide, quality better, raising output etc., successful, there is very high economic worth, have large-scale promotion prospect.

Description

Plant cover cultivation methods

Technical field

The present invention relates to a kind of plant cover cultivation methods.

Background technology

Light-converting agent is Red and blue light ultraviolet, purple light and the green glow useless to photosynthesis of plant in sunlight being converted to energy Promoting plant growth.About the research report of blue light-converting agent is less, for the research of ruddiness light-converting agent, mainly based on rare earth organic complex, proposes the growth of ruddiness light-converting agent to plant in some document and there is promoter action.

But can be used in the market is prepared the light-converting agent turning light master batch and light-converting film and also be there is a lot of problems: (1) matching is poor.Especially organic coordination compound light-converting agent, it launches main peak generally at about 610nm, has larger gap with the absorption spectrum ranges 400-480nm of plant and 620 ~ 680nm.(2) preparation cost is high, therefore causes expensive, and market is difficult to accept, and is the biggest obstacle hindering light-converting agent to apply at present.(3) poor stability.No matter be inorganic light-converting agent or organic coordination compound light-converting agent, for a long time under ultraviolet irradiation, all obvious decay, oxidation and deliquescence can occur, organic coordination compound also may decompose.(4) fluorescence lifetime is short.Most patent and pertinent literature all do not report its fluorescence lifetime, and about fluorescence transformation period of indivedual report also only has half a year, the update time due to plastic sheeting for farm use is 9 ~ 12 months, so can not be synchronous with the work-ing life of plastics film.

Modern Agriculture crop-planting employs the means such as a large amount of agricultural chemicals, chemical fertilizer, hormone medicine and transgenosis, therefore also for the mankind bring a lot of disease, there is the possibility of data display agricultural chemicals and chemical substance cause cancer very large, hormone medicine and transgenosis also may cause human developmental's precocity and some labile factors, and agricultural chemicals and chemical fertilizer bring destructive strike also to other biology simultaneously.

Existing organic healthy food plantation is substantially based on implantation methods such as common plastic house plastics film and applying organic fertilizer, and early investment fund is large, and plant maintenance cost is high, volume increase is general, so existing organic healthy food production is low, price, cannot realize large-scale promotion substantially.

Summary of the invention

First object of the present invention is to overcome deficiency of the prior art, provides a kind of plant cover cultivation methods.

For realizing above object, the present invention is achieved through the following technical solutions:

Plant cover cultivation methods, is characterized in that, utilizes light conversion film to make booth or mulch film, forms a plant-growth space; Described light conversion film comprises film matrix, ruddiness light-converting agent and the first auxiliary agent, and described ruddiness light-converting agent weight is the 0.1-10% of described light conversion film weight; First auxiliary agent weight is the 0.1%-10% of described light conversion film weight; All the other are mainly film matrix;

The composition general formula of described ruddiness light-converting agent is: Ca _1-xm _xs:TM; Wherein, 0≤x<1; M is one or more in Mg, Ba, Sr, Zn, Cd, Hg; TM is one or more in Sm, Ce, Y, Gd, La, Pr, Eu, Cu, Mn.

Preferably, described ruddiness light-converting agent emission wavelength is 380-480nm and 640-680nm for launching peak wavelength scope.

Preferably, described ruddiness light-converting agent absorbing wavelength scope is 220-380nm and 480-620nm.

Preferably, ruddiness light-converting agent composition general formula is: Ca _1-x-yn _xsr _ys:Eu; Wherein, 0≤x<1,0≤y<1, x+y<1; N is one or more in alkaline-earth metal.

Preferably, described alkaline-earth metal N is one or more in Mg, Ba, Zn, Cd, Hg.

Preferably, also comprise rare earth metal in described ruddiness light-converting agent, its composition general formula is: Ca _1-x-yn _xsr _ys:Eu, TM; TM is one or more in rare earth metal.

Preferably, described rare earth metal TM is one or more in Sm, Ce, Y, Gd, La, Pr, Cu and Mn.

Preferably, its component also comprises one or both in Cl or Li.

Preferably, described ruddiness light-converting agent preparation method is: the oxide compound and the fusing assistant that take the metallic element in ruddiness light-converting agent fully grind; Under reducing atmosphere condition, fully react at 600 DEG C ~ 1200 DEG C, namely obtain product.

Preferably, the oxide compound of the metallic element in ruddiness light-converting agent comprises CaCO ₃, MgO, ZnO, BaCO ₃, CdO, HgO, SrCO ₃, Eu ₂o ₃, Sm ₂o ₃, CeO ₂, Gd ₂o ₃, La ₂o ₃, CuO, MnO ₂, Pr ₆o ₁₁and Y ₂o ₃.

Preferably, reaction raw materials also comprises sulphur powder.

Preferably, described fusing assistant is NaF, CaF ₂, BaF ₂, Li ₂cO ₃, K ₂cO ₃, CaCl ₂, KCl, NaCl, NH ₄cl, H ₃bO ₃in one or more.

Preferably, the weight of described fusing assistant is 0.1 ~ 50% of each metal oxides weight sum.More preferably, more preferably, the weight of described fusing assistant is 0.5 ~ 20% of each metal oxides weight sum; Most preferably, the weight of fusing assistant is 2 ~ 15% of each metal oxides and sulphur grain weight amount sum.

Preferably, reducing atmosphere adopts CO, hydrogen or nitrogen hydrogen mixeding gas.

Preferably, react 1 ~ 4 hour at 600 DEG C ~ 1200 DEG C.

Preferably, described light conversion film comprises light-converting agent master batch, film matrix and the first auxiliary agent; Described light-converting agent master batch comprises master batch matrix, ruddiness light-converting agent and the second auxiliary agent; Described second auxiliary agent weight is the 1%-10% of described light-converting agent master batch weight; Ruddiness light-converting agent weight is the 0.1-10% of described light conversion film weight; In described light-converting agent master batch, all the other are mainly master batch matrix.

Preferably, described master batch matrix and film matrix are same material.

Preferably, described master batch matrix is one or more in Low Density Polyethylene, linear low density polyethylene, medium-density polyethylene, high density polyethylene(HDPE), polypropylene, ethylene-vinyl acetate resin, polyvinyl chloride.

Preferably, described ruddiness light-converting agent weight is the 5-75% of described light-converting agent master batch weight.

Preferably, described ruddiness light-converting agent weight is the 30-70% of described light-converting agent master batch weight.

Preferably, described second auxiliary agent is lubricant.More preferably, described lubricant weight is the 1%-10% of light-converting agent master batch weight.

Preferably, described lubricant is selected from one or more in polyethylene wax, vinyl bis-stearamides, Zinic stearas, stearic acid pentaerythritol ester, polyoxyethylene glycol, titanate coupling agent, aluminate coupling agent.

Preferably, described second auxiliary agent also comprises one or both in the initiator of 0.01%-10% grafted monomer and 0.001%-5%.

Preferably, described grafted monomer is selected from one or more in maleic anhydride, vinylformic acid, vinylbenzene, butyl acrylate.

Preferably, described initiator is selected from one or more in dicumyl peroxide, dibenzoyl peroxide, di-t-butyl peroxide, dilauroyl peroxide, di-cyclohexylperoxy dicarbonate, di-isopropyl peroxydicarbonate, peroxy dicarbonate two (2-ethylhexyl) ester, two (2-phenyl ethoxy) ester, tert-Butyl peroxypivalate and the peroxidized t-butyl perbenzoate of peroxy dicarbonate.

Described light-converting agent master batch adopts twin screw extruder extruding pelletization.Preferably, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation.Actual temp and rotating speed can be determined according to master batch body material and light-converting agent content, do not repeat them here.Granulation also can use other agglomeration techniques existing to realize.

Preferably, described ruddiness light-converting agent is surrounded by film, and described film is properties-correcting agent or general formula is MF ₂or MSiO ₃material, M is one or more in Ca, Sr, Ba or Al; The mass ratio of described film and light-converting agent is (0.1 ~ 50): 100.

Preferably, described properties-correcting agent is one or more in resol, aminoresin, Synolac, epoxy resin, acrylic resin, silane coupling agent, titanate coupling agent.

Available resol includes but not limited to versatility resol and modified phenolic resins.Modified phenolic resins includes but not limited to water soluble phenol resin, rosin modified phenolic resin, nylon modified phenolic resin and aniline modified resol.

Available aminoresin includes but not limited to urea-formaldehyde resin, terpolycyantoamino-formaldehyde resin, aniline formaldehyde resin and water soluble amino resin.

Available Synolac includes but not limited to 300,310,341,342,343-3,343-4,355-5,389-8,3150,3247.

Available epoxy resin includes but not limited to bisphenol A type epoxy resin, bisphenol f type epoxy resin, novolac epoxy and acrylic acid epoxy resin.

Available acrylic resin includes but not limited to methyl methacrylate, β-dimethyl-aminoethylmethacrylate, poly-n-butyl methacrylate, n-BMA, Octyl methacrylate, methacrylic acid certain herbaceous plants with big flowers ester, phenyl methacrylate and lauryl methacrylate(LMA).

Available silane coupling agent includes but not limited to vinyl trichloro silane, vinyltriethoxysilane, vinyltrimethoxy silane, vinyl three ('beta '-methoxy oxyethyl group) silane, γ-aminopropyl triethoxysilane, γ-glycidyl ether oxygen propyl trimethyl silane, γ-(methacryloxy) propyl trimethoxy silicane, γ-mercaptopropyl trimethoxysilane, N-β-aminoethyl-γ-aminopropyltrimethoxysilane, anilinomethyl triethoxysilane and anilinomethyl trimethoxy silane.

Available titanate coupling agent includes but not limited to the different capryloyl titanic acid ester of isopropoxy three, isopropoxy three isostearoyl base titanic acid ester, dioleoyl ethylene titanate, three oleoyl isopropyl titanate and tetrabutyl titanates.

Preferably, MF ₂or MSiO ₃with the abundant calcination of described ruddiness light-converting agent; Or properties-correcting agent and ruddiness light-converting agent are fully ground.

Preferably, the modification coated time is 0.1-4 hour.

Preferably, grinding plant is adopted to be sand mill, three-roller or high-speed mixer during grinding.

Preferably, calcination temperature is 200 DEG C ~ 900 DEG C.

Preferably, calcination time is 0.5 ~ 4 hour.

Preferably, described MF ₂preparation method is: preparation M salt brine solution, drips the precipitation agent fluoride solution prepared, stir 1 ~ 2 hour, washing, centrifugation; Dry.

Preferably, described M SiO ₃preparation method is: preparation nitrocalcite or strontium nitrate or nitric acid barium salt or alum liquor, drip precipitation agent sodium silicate solution, stir 0.1-8 hour, be separated.

Described film matrix is one or more in Low Density Polyethylene, linear low density polyethylene, medium-density polyethylene, high density polyethylene(HDPE), polypropylene, ethylene-vinyl acetate resin, polyvinyl chloride.

Preferably, the first described auxiliary agent is one or both in photostabilizer and oxidation inhibitor.

Available light stablizer includes but not limited to: (2,2,6,6-tetramethyl--4-piperidines) imines, succinic acid and (4-hydroxyl-2, the polymkeric substance of 2,6,6-tetramethyl--1-piperidine alcohols), sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester, or its several mixture.More preferably, photostabilizer is the mixture of (2,2,6,6-tetramethyl--4-piperidines) imines and succinic acid and (polymkeric substance of 4-hydroxyl-2,2,6,6-tetramethyl--1-piperidine alcohols).

Preferably, photostabilizer is the 0.01%-10% of described light conversion film weight.

Available oxidation inhibitor includes but not limited to: irgasfos 168, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester; Antioxidant 1010, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Antioxidant 1076, i.e. β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid; Antioxidant 2246; Antioxidant 300; Antioxidant 330.

Preferably, oxidation inhibitor is the mixture of three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.

Preferably, oxidation inhibitor is the 0.01%-10% of described light conversion film content; Photostabilizer is the 0.1%-5% of described light conversion film content.

Light conversion film production method in the present invention can adopt conventional film production method, comprises rolling process and extrusion molding production.

Preferably, in growing process, in described growing space, carbon dioxide is discharged.

Preferably, the carbon dioxide amount of discharging is the 0.01%-10% of growing space gas gross.Preferably, the carbon dioxide amount of discharging is the 0.1%-5% of growing space gas gross.

Preferably, described carbonic acid gas is continued discharge into described growing space or intermittently discharge into described growing space.

Preferably, the application time of carbonic acid gas is 6 o'clock to 20 o'clock every day.Preferably, the application time of described carbonic acid gas is 6 o'clock to 16 o'clock every day.Be preferably, the application time of described carbonic acid gas is 6 o'clock to 14 o'clock every day again.Be preferably, the application time of described carbonic acid gas is 6 o'clock to 10 o'clock every day again.

Described carbonic acid gas is to be applied to external postpartum in production space in growing space or can the material of release of carbon dioxide or device in described growing space again.

Preferably, described plant is farm crop.Described farm crop include but not limited to: (1), food crop, include but not limited to paddy rice, corn, beans, potato class, highland barley, broad bean, wheat etc.; (2), cash crop, include but not limited to coffee, pepper, flax, Sunflower Receptacle, tea etc.; (3) vegetable crop, includes but not limited to radish, Chinese cabbage, celery, leek, garlic, green onion, Radix Dauci Sativae, snake melon, lotus flower dish, jerusalem artichoke, sword bean, coriander, asparagus lettuce, chrysanthemum, capsicum, cucumber, tomato, romaine lettuce etc.; (4) fruit, includes but not limited to pears, green plum, apple, peach, apricot, walnut, plum, cherry, strawberry etc.(5) Chinese medicinal materials, includes but not limited to anise, cloves, pseudo-ginseng, rhizoma Gastrodiae, radix polygonati officinalis, Radix Glycyrrhizae, the dried rhizome of rehmannia, gingko, Radix Angelicae Sinensis; (6) flowers, include but not limited to rose, Flower of Chu-lan Tree, camellia, Flower of Arabian Jasmine, osmanthus fragrans, orchid, chrysanthemum, money tree etc.;

The invention has the beneficial effects as follows: compared with prior art, the synthesis temperature of ruddiness light-converting agent is lower, simple to operate, and sample is more open, greatly reduces cost; With photosynthesis of plant Spectral matching, can be matched with it by the position changing substrate composition to regulate and control to launch main peak.Ruddiness light-converting agent in the present invention, both can be converted into the ripple of 380-480nm and the 640-680nm wavelength needed for photosynthesis of plant by sunlight, can absorb again the 220-380nm ultraviolet to plant pest and the greenish-yellow light of 480-620nm.Coating not only effectively improve ruddiness light-converting agent light-decay characteristic, prevent its oxidation and deliquescence, improve its work-ing life, and its luminous intensity can be significantly improved.Due to without H ₂s smell, harmless, preparation can be widely used in and turn light master batch and light-converting film.Ruddiness light-converting agent is first made master batch to be used further to manufacture film, can carry out pre-dispersed to ruddiness light-converting agent, improve the dispersiveness of ruddiness light-converting agent in film matrix.Dust pollution during minimizing execute-in-place.It is scattered for making the advantage that master batch manufactures film again, and execute-in-place is simple, and stability is high.Light-converting agent is mixed film especially in agricultural film, film is had turn the effect of light, facilitate the application of light-converting agent.Light-converting film in the present invention and photosynthesis of plant Spectral matching good.Use light-converting film to apply the implantation methods of carbonic acid gas simultaneously, matter is increased to plant yield-increasing and plays very large effect, disease-free, without insect pest, without chemical pesticide, quality better, raising output etc., successful, there is very high economic worth, have large-scale promotion prospect.

Accompanying drawing explanation

Fig. 1 .CaS:Eu, Cl (CaF ₂) the exciting light spectrogram of red light-converting agent;

Fig. 2. the utilizing emitted light spectrogram of the coated front and back of red light-converting agent (A1, A2);

Fig. 3. the utilizing emitted light spectrogram of the coated front and back of red light-converting agent (B1, B2);

Fig. 4. the utilizing emitted light spectrogram of the coated front and back of red light-converting agent (C1, C2);

Fig. 5. the utilizing emitted light spectrogram of the coated front and back of red light-converting agent (D1, D2).

Fig. 6 is light-converting agent luminescent spectrum figure prepared by embodiment 14 and embodiment 15.

Fig. 7 is coating ruddiness light-converting agent scanning electron microscope prepared by embodiment 15.

Fig. 8 is coating ruddiness light-converting agent scanning electron microscope prepared by embodiment 21.

Fig. 9 is ruddiness light-converting agent scanning electron microscope prepared by embodiment 17.

Figure 10 is the light-converting film prepared of embodiment 21 and the absorption of common blank film and exciting light spectrogram.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in detail:

Embodiment 1

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 64.5g CaCO respectively ₃, 24.8g sulphur powder, 0.52g Eu ₂o ₃, 4.6gNH ₄cl, then mixed by raw material, fully grind, in the lower 800 DEG C of roastings of CO reducing atmosphere 2 hours, cool gradually, namely obtain sample (A1), sample took on a red color.

A1 forms general formula: CaS:Eu, Cl.

Exciting light spectrogram is shown in Fig. 1.Fig. 1 shows that light-converting agent (A1) effectively can absorb photosynthesis of plant and do not absorb or absorb more weak UV-light and yellow green light, avoid photosynthetic absorption spectrum, be prepared into the ruddiness that light-converting film can provide the characteristic wavelength needed for photosynthesis greatly.

Utilizing emitted light spectrogram is shown in Fig. 2.Fig. 2 shows that light-converting agent (A1) can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, its spectrum and photosynthesis spectrum very identical.

Owing to being adopt the sulphur powder of carbonate and easily distillation to be raw material, can discharge gas in building-up process, make its median size of final product little, more than 95% particle diameter is 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by CaF ₂with the ratio of the weight ratio 5:100 of light-converting agent, take the Ca (NO of respective amount ₃) ₂4H ₂0, be made into calcium saline solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, and centrifugation is dried, fully mixed with A1, and 500 DEG C of calcinations 1 hour, namely obtain being surrounded by CaF ₂the sample (A2) of film, sample takes on a red color.

A2 forms general formula: CaS:Eu, Cl (CaF ₂).

After coating, the light decay of ruddiness light-converting agent obviously improves, and is placed in water rate of decomposition and greatly reduces, and compare and do not have tunicary ruddiness light-converting agent, be prepared into light-converting film with it, its work-ing life can extend more than 3 times.Work-ing life can reach several 18 months.

The excitation and emission spectra figure of the coated front and back of ruddiness light-converting agent (A1, A2) as shown in Figure 2.Fig. 2 shows that UV-light and yellow green light switching emission main peak can be the ruddiness of 640nm by sample, and the luminous intensity after coating significantly improves.

Experiment shows, wavelength region can be all that the exciting light of 220 ~ 350nm or 440 ~ 620nm is converted into the ruddiness that wavelength region is 600 ~ 680nm by A1 and A2.

(3) preparation of light-converting agent master batch

Get 150kg A1 or A2, Low Density Polyethylene 50kg, linear polyethylene 100kg, polyethylene wax 5kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 1, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 2

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 64.5g CaCO respectively ₃, 24.8 sulphur powder, 0.52g Eu ₂o ₃, 4.6g Li ₂cO ₃, mixed by raw material, fully grind, in the lower 850 DEG C of roastings of CO reducing atmosphere 2 hours, cool gradually, namely obtain sample (B1), sample was orange red.

B1 forms general formula: CaS:Eu, Li.

Experiment shows, B1 exciting light spectrogram is identical with A1, and it also can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

Utilizing emitted light spectrogram is shown in Fig. 3.Fig. 3 shows that light-converting agent (B1) can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, its spectrum and photosynthesis spectrum very identical.

(2) preparation of coating ruddiness light-converting agent: by SrF ₂with the ratio of the weight ratio 5:100 of light-converting agent, take the Sr (NO of respective amount ₃) ₂, be made into strontium salt brine solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, and centrifugation is dried, fully mixed with B1, and 600 DEG C of calcinations 1 hour, namely obtain being surrounded by SrF ₂the sample (B2) of film, sample takes on a red color.

B2 forms general formula: CaS:Eu, Li (SrF ₂).

The utilizing emitted light spectrogram of the coated front and back of ruddiness light-converting agent (B1, B2) as shown in Figure 3.Fig. 3 shows that UV-light and yellow green light switching emission main peak can be the ruddiness of 637nm by sample, and the luminous intensity after coating significantly improves.

Experiment shows, wavelength region can be all that the exciting light of 220 ~ 350nm or 440 ~ 620nm is converted into the ruddiness that wavelength region is 600 ~ 680nm by B1 and B2.

(3) preparation of light-converting agent master batch

Get 100kg B1 or B2, Low Density Polyethylene 50kg, linear polyethylene 100kg, polyethylene wax 5kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 200kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 2, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 3

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 64.5g CaCO respectively ₃, 24.8 sulphur powder, 0.52g Eu ₂o ₃, 4.6g CaCl ₂, mixed by raw material, fully grind, in the lower 900 DEG C of roastings of CO reducing atmosphere 2 hours, cool gradually, namely obtain sample (C1), sample took on a red color.

C1 forms general formula: CaS:Eu, Cl.

Experiment shows: C1 exciting light spectrogram is identical with A1, and it also can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

Utilizing emitted light spectrogram is shown in Fig. 4.Fig. 4 shows that light-converting agent (C1) can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, its spectrum and photosynthesis spectrum very identical.

Owing to being adopt the sulphur powder of carbonate and easily distillation to be raw material, can discharge gas in building-up process, make its median size of final product little, more than 98% particle diameter is 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by BaF ₂with the ratio of the weight ratio 10:100 of light-converting agent, take the Ba (NO of respective amount ₃) ₂, be made into the barium salt aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, and centrifugation is dried, fully mixed with C1, and 700 DEG C of calcinations 1 hour, namely obtain being surrounded by BaF ₂the sample (C2) of film, sample takes on a red color.

C2 forms general formula: CaS:Eu, Cl (BaF ₂).

After coating, the light decay of ruddiness light-converting agent obviously improves, and is placed in water rate of decomposition and greatly reduces, and compare and do not have tunicary ruddiness light-converting agent, be prepared into light-converting film with it, its work-ing life can extend more than 2.5 times.Work-ing life can reach several 15 months.

The utilizing emitted light spectrogram of the coated front and back of ruddiness light-converting agent (C1, C2) as shown in Figure 4.It is the ruddiness of main peak that Fig. 4 shows that yellow green light can be converted to 635nm by sample, and the luminous intensity after coating significantly improves.

Experiment shows, wavelength region can be all that the exciting light of 220 ~ 350nm or 440 ~ 620nm is converted into the ruddiness that wavelength region is 600 ~ 680nm by C1 and C2.

(3) preparation of light-converting agent master batch

Get 50kg C1 or C2, Low Density Polyethylene 50kg, linear polyethylene 100kg, polyethylene wax 12kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get polyvinyl chloride 1100kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, gets the light-converting agent of aforementioned prepared example 3, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 4

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 17.5g Sr CO ₃, 22.8 sulphur powder, 0.48g Eu ₂o ₃, 0.10g Sm ₂o ₃, 4.8g BaF ₂, mixed by raw material, fully grind, in the lower 850 DEG C of roastings of CO reducing atmosphere 1.5 hours, cool gradually, namely obtain sample, sample was orange red, and sample composition general formula is Ca _0.8sr _0.2s:Eu, Sm.

Experiment proves, sample excitation spectrogram is identical with A1, and it also can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its emmission spectrum main peak is 633nm, very identical with photosynthesis spectrum.

Owing to being adopt the sulphur powder of carbonate and easily distillation to be raw material, can discharge gas in building-up process, make its median size of final product little, more than 90% particle diameter is 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by CaF ₂with the ratio of the weight ratio 1:100 of light-converting agent, take the Ca (NO of respective amount ₃) ₂4H ₂0, be made into the calcium aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, and centrifugation is dried, fully mixed with ruddiness light-converting agent, and 500 DEG C of calcinations 1 hour, namely obtain being surrounded by CaF ₂the sample of film, sample takes on a red color.Sample composition general formula is: Ca _0.8sr _0.2s:Eu, Sm (CaF ₂).

After coating, the light decay of ruddiness light-converting agent obviously improves, and is placed in water rate of decomposition and greatly reduces, and compare and do not have tunicary ruddiness light-converting agent, be prepared into light-converting film with it, its work-ing life can extend more than 2 times.Work-ing life can reach several 12 months.

Experiment shows, wavelength region can be all that the exciting light of 220 ~ 350nm or 440 ~ 620nm is converted into the ruddiness that wavelength region is 600 ~ 680nm by the ruddiness light-converting agent before and after coating.

(3) preparation of light-converting agent master batch

Get 300kg example 4 (2) sample, high density polyethylene(HDPE) 250kg, polyoxyethylene glycol 5kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 1200kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, gets the light-converting agent of aforementioned prepared example 4, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 5

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 8.2g MgO, 26.1 sulphur powder, 0.55g Eu ₂o ₃, 0.16g Sm ₂o ₃, 4.3g H ₃bO ₃, mixed by raw material, fully grind, in the lower 850 DEG C of roastings of CO reducing atmosphere 1.5 hours, cool gradually, namely obtain sample (D1), sample was orange red.

D1 forms general formula: Ca _0.7mg _0.3s:Eu, Sm.

Experiment shows, D1 exciting light spectrogram is identical with A1, and it also can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

D1 utilizing emitted light spectrogram is shown in Fig. 5.Fig. 5 shows that light-converting agent (D1) can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, its spectrum and photosynthesis spectrum very identical.

Owing to being adopt the sulphur powder of carbonate and easily distillation to be raw material, can discharge gas in building-up process, make its median size of final product little, more than 96% particle diameter is 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by CaF ₂with the ratio of the weight ratio 15:100 of light-converting agent, take the Ca (NO of respective amount ₃) ₂4H ₂0, be made into the calcium aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, and centrifugation is dried, fully mixed with D1, and 400 DEG C of calcinations 3 hours, namely obtain being surrounded by CaF ₂the sample (D2) of film, sample takes on a red color.

D2 forms general formula: Ca _0.7mg _0.3s:Eu, Sm (CaF ₂).

The utilizing emitted light spectrogram of the coated front and back of ruddiness light-converting agent (D1, D2) as shown in Figure 5.Fig. 5 shows that yellow green light can be converted to the ruddiness of 639nm by sample, and the luminous intensity after coating significantly improves.

Experiment shows, wavelength region can be all that the exciting light of 220 ~ 350nm or 440 ~ 620nm is converted into the ruddiness that wavelength region is 600 ~ 680nm by D1 and D2.

(3) preparation of light-converting agent master batch

Get 200kg D1 or D2, linear polyethylene 150kg, Zinic stearas 10kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 20kg, 5kg antioxidant 300, gets the light-converting agent of aforementioned prepared example 5, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 6

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 19.0g MgO, 36.5 sulphur powder, 0.77g Eu ₂o ₃, 0.18gCeO ₂, 6.1g H ₃bO ₃, mixed by raw material, fully grind, in the lower 850 DEG C of roastings of CO reducing atmosphere 1.5 hours, cool gradually, namely obtain sample, sample was orange red.Sample general formula is: Ca _0.5mg _0.5s:Eu, Ce.

Experiment shows, sample excitation spectrogram is identical with A1, and it also can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its spectral emissions main peak is 635nm, very identical with photosynthesis spectrum.

(2) preparation of coating ruddiness light-converting agent: by SrF ₂with the ratio of the weight ratio 5:100 of light-converting agent, take the Sr (NO of respective amount ₃) ₂, be made into strontium salt brine solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with previous step fully mixes, and 900 DEG C of calcinations 1 hour, namely obtain being surrounded by SrF ₂the sample of film, sample takes on a red color.Sample general formula is: Ca _0.5mg _0.5s:Eu, Ce (SrF ₂).

Experiment shows, wavelength region can be all that the exciting light of 220 ~ 350nm or 440 ~ 620nm is converted into the ruddiness that wavelength region is 600 ~ 680nm by the sample before and after coating.

(3) preparation of light-converting agent master batch

Get 200kg example 6 (2) sample, Low Density Polyethylene 50kg, stearic acid pentaerythritol ester 17kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, succinic acid and (4-hydroxyl-2,2, the polymkeric substance of 6,6-tetramethyl--1-piperidine alcohols) 20kg, 5kg antioxidant 2246, get the light-converting agent of aforementioned prepared example 6, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 7

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 44.3g MgO, 60.8 sulphur powder, 1.28g Eu ₂o ₃, 0.31gCeO ₂, 3.7g H ₃bO ₃, mixed by raw material, fully grind, in the lower 850 DEG C of roastings of CO reducing atmosphere 1.5 hours, cool gradually, namely obtain sample, sample was orange red.Sample composition general formula is: Ca _0.3mg ₀₇s:Eu, Ce.

The ruddiness that this light-converting agent can absorb UV-light and yellow green light and launch needed for photosynthesis of plant, its spectral emissions main peak is 631nm, coincide with photosynthesis spectrum.

Owing to being adopt the sulphur powder of carbonate and easily distillation to be raw material, can gas being discharged in building-up process, make its median size of final product little, be about 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by BaF ₂with the ratio of the weight ratio 8:100 of light-converting agent, take the Ba (NO of respective amount ₃) ₂, be made into the barium salt aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 900 DEG C of calcinations 1 hour, namely obtain being surrounded by BaF ₂the sample of film, sample takes on a red color.Sample composition general formula is: Ca _0.3mg ₀₇s:Eu, Ce (BaF ₂).

(3) preparation of light-converting agent master batch

Get 100kg example 7 (2) sample, polypropylene 100kg, titanate coupling agent 10kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 7, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 8

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 69.8g Sr CO ₃, 36.5 sulphur powder, 0.77g Eu ₂o ₃, 0.24gCuSO ₄, 15.1g BaF ₂, mixed by raw material, fully grind, in the lower 1000 DEG C of roastings of nitrogen hydrogen mixeding gas reducing atmosphere 3 hours, cool gradually, namely obtain sample, sample was orange red.Sample composition general formula is: Ca _0.5sr _0.5s:Eu, Cu.

The ruddiness that this light-converting agent can absorb UV-light and yellow green light and launch needed for photosynthesis of plant, its emmission spectrum main peak is 630nm, coincide with photosynthesis spectrum.

Owing to being adopt the sulphur powder of carbonate and easily distillation to be raw material, can discharge gas in building-up process, make its median size of final product little, more than 99% particle diameter is 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by SrF ₂with the ratio of the weight ratio 20:100 of light-converting agent, take the Sr (NO of respective amount ₃) ₂, be made into strontium salt brine solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 650 DEG C of calcinations 2 hours, namely obtain being surrounded by SrF ₂the sample of film, sample takes on a red color.Sample composition general formula is: Ca _0.5sr _0.5s:Eu, Cu (SrF ₂).

(3) preparation of light-converting agent master batch

Get 50kg example 8 (2) sample, ethylene-vinyl acetate copolymer 50kg, titanate coupling agent 3kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 8, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 9

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 279.3g Sr CO ₃, 91.2 sulphur powder, 1.93g Eu ₂o ₃, 20.8g KCl, mixed by raw material, fully grind, in the lower 1150 DEG C of roastings of hydrogen reduction atmosphere 1 hour, cool gradually, namely obtain sample, sample was orange red.Sample composition general formula is: Ca _0.2sr _0.8s:Eu, Cl.

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its emmission spectrum main peak is 624nm, substantially identical with photosynthesis spectrum.

(2) preparation of coating ruddiness light-converting agent: by BaF ₂with the ratio of the weight ratio 4:100 of light-converting agent, take the Ba (NO of respective amount ₃) ₂, be made into the barium salt aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 450 DEG C of calcinations 0.5 hour, namely obtain being surrounded by BaF ₂the sample of film, sample takes on a red color.Sample composition general formula is: Ca _0.2sr _0.8s:Eu, Cl (BaF ₂).

(3) preparation of light-converting agent master batch

Get 60kg example 9 (2) sample, ethylene-vinyl acetate copolymer 50kg, titanate coupling agent 2kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 9, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 10

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 10.0g Sr CO ₃, 11.4gMgCO ₃, 26.1 sulphur powder, 0.55g Eu ₂o ₃, 0.12gCuSO ₄, 10.0g KCl, mixed by raw material, fully grind, in the lower 1200 DEG C of roastings of hydrogen reduction atmosphere 3.5 hours, cool gradually, namely obtain sample, sample was orange red.

Sample composition general formula is: Ca _0.7mg _0.2sr _0.1s:Eu, Cu, Cl.

Exciting light spectrogram approximate diagram 1, can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its emmission spectrum main peak is 636nm, substantially identical with photosynthesis spectrum.

Owing to being adopt carbonate and the easy sulphur powder distilled to be raw material, can gas being discharged in building-up process, make its median size of final product little, more than 97% particle diameter is 1 ~ 3 μm, there is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of coating ruddiness light-converting agent: by CaF ₂with the ratio of the weight ratio 2:100 of light-converting agent, take the Ca (NO of respective amount ₃) ₂4H ₂0, be made into the calcium aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 600 DEG C of calcinations 4 hours, namely obtain being surrounded by CaF ₂the sample of film, sample takes on a red color.

Sample composition general formula is: Ca _0.7mg _0.2sr _0.1s:Eu, Cu, Cl (CaF ₂).

(3) preparation of light-converting agent master batch

Get 50kg example 10 (2) sample, high density polyethylene(HDPE) 30kg, vinyl bis-stearamides 3kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 20kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 10, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 11

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 52.4g Sr CO ₃, 29.9gMgCO ₃, 45.6 sulphur powder, 0.96g Eu ₂o ₃, 0.26gMnO ₂, 27g BaF ₂, mixed by raw material, fully grind, in the lower 850 DEG C of roastings of CO reducing atmosphere 3.5 hours, cool gradually, namely obtain sample, sample was orange red.

Sample composition general formula is: Ca _0.4mg _0.3sr _0.3s:Eu, Mn.

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its emmission spectrum main peak is 632nm, substantially identical with photosynthesis spectrum.

(2) preparation of coating ruddiness light-converting agent: by SrF ₂with the ratio of the weight ratio 9:100 of light-converting agent, take the Sr (NO of respective amount ₃) ₂, be made into strontium salt brine solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 500 DEG C of calcinations 3.5 hours, namely obtain being surrounded by SrF ₂the sample of film, sample takes on a red color.

Sample composition general formula is: Ca _0.4mg _0.3sr _0.3s:Eu, Mn (SrF ₂).

(3) preparation of light-converting agent master batch

Get 60kg example 11 (2) sample, high density polyethylene(HDPE) 20kg, polyethylene wax 3kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 11, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 12

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 139.7g Sr CO ₃, 79.8gMgCO ₃, 91.2 sulphur powder, 1.93g Eu ₂o ₃, 30.0g K ₂cO ₃, mixed by raw material, fully grind, in the lower 1050 DEG C of roastings of CO reducing atmosphere 4 hours, cool gradually, namely obtain sample, sample was orange red.

Sample composition general formula is: Ca _0.2mg _0.4sr _0.4s:Eu.

Experiment shows, sample excitation spectrogram and A1 are similar to, and it also can absorb that photosynthesis of plant growth does not need or absorb more weak UV-light and yellow green light.

(2) preparation of coating ruddiness light-converting agent: by BaF ₂with the ratio of the weight ratio 12:100 of light-converting agent, take the Ba (NO of respective amount ₃) ₂, be made into the barium salt aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 650 DEG C of calcinations 1 hour, namely obtain being surrounded by BaF ₂the sample of film, sample takes on a red color.Sample composition general formula is: Ca _0.2mg _0.4sr _0.4s:Eu (BaF ₂).

(3) preparation of light-converting agent master batch

Get 50kg example 12 (2) sample, high density polyethylene(HDPE) 20kg, polyethylene wax 3kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 12, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 13

(1) synthesis of ruddiness light-converting agent: stoichiometrically take 47.5g CaCO respectively ₃, 139.7g Sr CO ₃, 79.8gMgCO ₃, 91.2 sulphur powder, 1.93g Eu ₂o ₃, 0.38gMnO ₂, 15.0g K ₂cO ₃, mixed by raw material, fully grind, in the lower 950 DEG C of roastings of CO reducing atmosphere 1.5 hours, cool gradually, namely obtain sample, sample was orange red.

Sample composition general formula is: Ca _0.5mg _0.2ba _0.2sr _0.1s:Eu, Mn.

(2) preparation of coating ruddiness light-converting agent: by CaF ₂with the ratio of the weight ratio 7:100 of light-converting agent, take the Ca (NO of respective amount ₃) ₂4H ₂0, be made into the calcium aqueous solution, then the precipitation agent NH that will prepare ₄f solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, centrifugation, and dry, the ruddiness light-converting agent prepared with (1) step fully mixes, and 800 DEG C of calcinations 1 hour, namely obtain being surrounded by CaF ₂the sample of film, sample takes on a red color.

Sample composition general formula is: Ca _0.5mg _0.2ba _0.2sr _0.1s:Eu, Mn (CaF ₂).

(3) preparation of light-converting agent master batch

Get 70kg example 13 (2) sample, high density polyethylene(HDPE) 20kg, polyethylene wax 5kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get Low Density Polyethylene 200kg, linear low density polyethylene 800kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 5kg, get the light-converting agent of aforementioned prepared example 13, coating ruddiness light-converting agent or master batch 30kg, mix rear inflation film manufacturing machine blown film and form.Film thickness is 80 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 14

The synthesis of ruddiness light-converting agent: stoichiometrically take 64.5g CaCO respectively ₃, 23.5g SrCO ₃, 0.27g Eu ₂o ₃, 0.03gSm ₂o ₃, 0.15gCuSO _4,3.5g (NH ₄) ₂sO ₄, then by raw material mix, fully grind, add the lower 900 DEG C of roastings of sulphur atmosphere reducing atmosphere 2 hours in CO, cool gradually, namely obtain sample, sample takes on a red color.

Sample general formula is: Ca _0.8sr _0.2s:Eu, Sm, Cu.Ruddiness light-converting agent luminescent spectrum figure in the present embodiment is shown in Fig. 6.

Embodiment 15

(1), the synthesis of ruddiness light-converting agent: stoichiometrically take 64.5g CaSO respectively ₄, 23.5g SrCO ₃, 0.27g Eu ₂o ₃, 0.03gSm ₂o ₃, 0.15gCuSO _4,3.5g (NH ₄) ₂sO ₄, then by raw material mix, fully grind, add the lower 800 DEG C of roastings of sulphur atmosphere reducing atmosphere 2 hours in CO, cool gradually, namely obtain sample, sample takes on a red color.

Sample general formula is: Ca _0.8sr _0.2s:Eu, Sm, Cu.Light-converting agent luminescent spectrum figure in the present embodiment is shown in Fig. 6.

(2), the preparation of coating ruddiness light-converting agent: by CaSiO ₃with the ratio of the weight ratio 5:100 of light-converting agent, take the Ca (NO of respective amount ₃) ₂4H ₂0, be made into the aqueous solution, then the precipitation agent Na that will prepare ₂siO ₃solution is added drop-wise in above-mentioned solution, stirs 1 hour, washing, and centrifugation is dried, fully mixed with example 14 light-converting agent, and 400 DEG C of calcinations 1 hour, namely obtain being surrounded by CaSiO ₃the sample of film, sample takes on a red color.

Sample general formula is: Ca _0.8sr _0.2s:Eu, Sm, Cu (CaSiO ₃).Coated rear Sample Scan Electronic Speculum is shown in Fig. 7.As can be seen from the figure, ruddiness light-converting agent is coated on centre by film.

(3) preparation of light-converting agent master batch

Get 40kg example 15 (2) sample, high density polyethylene(HDPE) 20kg, polyethylene wax 6kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 6.5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 3.5kg, gets the light-converting agent of aforementioned prepared example 15, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 16

(1) preparation of the red light-converting agent of coating: use ruddiness light-converting agent prepared by embodiment 14, take the light-converting agent 50g of respective amount, bisphenol A type epoxy resin 55g, β-dimethyl-aminoethylmethacrylate 55g, vinyl trichloro silane 5g wiring solution-forming, again the solution prepared is added in sand mill, grind 1 hour, washing, centrifugation, dries, namely obtains the sample being surrounded by properties-correcting agent.Sample takes on a red color.

(2) preparation of light-converting agent master batch

Get 40kg example 16 (1) sample, high density polyethylene(HDPE) 20kg, polyethylene wax 6kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(3) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, two-2,2,6, the 6-tetramethyl piperidine alcohol ester 10kg of sebacic acid; 10kg irgasfos 168, gets coating ruddiness light-converting agent or the master batch 30kg of aforementioned prepared example 16, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 17

The ruddiness that this light-converting agent can absorb UV-light and yellow green light and launch needed for photosynthesis of plant, its emmission spectrum main peak is 650nm, coincide with photosynthesis spectrum.

Fig. 9 is ruddiness light-converting agent scanning electron microscope prepared by embodiment 17.Owing to being adopt carbonate and the easy sulphur powder distilled to be raw material, can discharge gas in building-up process, make its median size of final product little, more than 99% particle diameter is 1 ~ 3 μm, sees Fig. 9.There is narrower particle size distribution range, be conducive to doping and be scattered in PE material and be prepared into light-converting film.

(2) preparation of the red light-converting agent of coating: in the ratio of the weight ratio 25:100 of light-converting agent and properties-correcting agent, take the light-converting agent 50g of respective amount, acrylic acid epoxy resin 100g, n-BMA 95g, vinyltrimethoxy silane 5g wiring solution-forming, again the solution prepared is added in sand mill, grind 1 hour, washing, centrifugation, dries, namely obtains the sample being surrounded by properties-correcting agent.Sample takes on a red color.

(3) preparation of light-converting agent master batch

Get 100kg example 17 (2) sample, linear polyethylene 200kg, polyethylene wax 10kg, maleic anhydride 0.5kg, dicumyl peroxide 0.1kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 6.5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 3.5kg, gets the light-converting agent of aforementioned prepared example 17, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 18

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its emmission spectrum main peak is 654nm, substantially identical with photosynthesis spectrum.

(2) preparation of coating ruddiness light-converting agent: in the ratio of the weight ratio 35:100 of light-converting agent and properties-correcting agent, take the light-converting agent 50g of respective amount, methyl methacrylate 138g, γ-glycidyl ether oxygen propyl trimethyl silane 5g wiring solution-forming, again the solution prepared is added in sand mill, grind 1 hour, washing, centrifugation, dries, namely obtains the sample being surrounded by properties-correcting agent.Sample takes on a red color.

(3) preparation of light-converting agent master batch

Get 100kg example 18 (2) sample, linear polyethylene 200kg, polyethylene wax 10kg, maleic anhydride 0.5kg, dicumyl peroxide 0.1kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 6.5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 3.5kg, gets the light-converting agent of aforementioned prepared example 18, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 19

Sample composition general formula is: Ca _0.7mg _0.2sr _0.1s:Eu, Cu, Cl.

(2) preparation of coating ruddiness light-converting agent: in the ratio of the weight ratio 50:100 of light-converting agent and properties-correcting agent; take the light-converting agent 50g of respective amount, versatility resol 55g, methacrylic acid certain herbaceous plants with big flowers ester 42g, isopropoxy three different capryloyl titanic acid ester 3g wiring solution-forming; again the solution prepared is added in sand mill; grind 1 hour; washing; centrifugation, dries, namely obtains the sample being surrounded by properties-correcting agent.Sample takes on a red color.

(3) preparation of light-converting agent master batch

Get 100kg example 19 (2) sample, linear polyethylene 200kg, polyethylene wax 10kg, maleic anhydride 0.5kg, dicumyl peroxide 0.1kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 6.5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 3.5kg, gets the light-converting agent of aforementioned prepared example 19, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 20

Sample composition general formula is: Ca _0.4mg _0.3sr _0.3s:Eu, Mn.

This light-converting agent can absorb UV-light and yellow green light and the ruddiness launched needed for photosynthesis of plant, and its emmission spectrum main peak is 652nm, substantially identical with photosynthesis spectrum.

(2) preparation of coating ruddiness light-converting agent: in the ratio of the weight ratio 30:100 of light-converting agent and properties-correcting agent, take the light-converting agent 50g of respective amount, urea-formaldehyde resin 80g, phenyl methacrylate 80g, vinyl three ('beta '-methoxy oxyethyl group) silane 6.7g wiring solution-forming, again the solution prepared is added in sand mill, grind 1 hour, washing, centrifugation, dries, namely obtains the sample being surrounded by properties-correcting agent.Sample takes on a red color.

(3) preparation of light-converting agent master batch

Get 100kg example 20 (2) sample, linear polyethylene 200kg, polyethylene wax 10kg, maleic anhydride 0.5kg, dicumyl peroxide 0.1kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 6.5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 3.5kg, gets the light-converting agent of aforementioned prepared example 20, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.

Embodiment 21

Sample composition general formula is: Ca _0.2mg _0.4sr _0.4s:Eu.

(2) preparation of coating ruddiness light-converting agent: in the ratio of the weight ratio 50:100 of light-converting agent and properties-correcting agent, take the light-converting agent 50g of respective amount, Synolac 34150g, poly-n-butyl methacrylate 45g, vinyltriethoxysilane 5g wiring solution-forming, again the solution prepared is added in sand mill, grind 1 hour, washing, centrifugation, dries, namely obtains the sample being surrounded by properties-correcting agent.Sample takes on a red color.Coated rear Sample Scan Electronic Speculum is shown in Fig. 8.As can be seen from the figure, ruddiness light-converting agent is coated on centre by film.

(3) preparation of light-converting agent master batch

Get 100kg example 21 (2) sample, linear polyethylene 200kg, polyethylene wax 10kg, maleic anhydride 0.5kg, dicumyl peroxide 0.1kg, is sequentially added to high-speed mixer by above-mentioned materials.After stirring with high-speed mixer, the service temperatures of 130 DEG C ~ 200 DEG C, be that the twin screw extruder of 100 ~ 500r/min is extruded through rotating speed, air-cooled granulation, is prepared from master batch.

(4) production of light conversion film

Get metallocene linear polyethylene 200kg, Low Density Polyethylene 200kg, linear low density polyethylene 600kg, (2,2,6,6-tetramethyl--4-piperidines) imines 10kg, sebacic acid two-2,2,6,6-tetramethyl piperidine alcohol ester 10kg, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 6.5kg, three [2.4-di-tert-butyl-phenyl] phosphorous acid ester 3.5kg, gets the light-converting agent of aforementioned prepared example 21, coating ruddiness light-converting agent or master batch 30kg, mixes rear inflation film manufacturing machine blown film and form.Film thickness is 100 microns; Inflation film manufacturing machine melt temperature 175 DEG C, die head temperature about 165 DEG C.Figure 10 is the light-converting film prepared of embodiment 21 and the absorption of common blank film and exciting light spectrogram.Blank film is the film not adding ruddiness light-converting agent.

Embodiment 22

The light conversion film that the light-converting agent getting awning film and the interpolation embodiment 18 of not adding light-converting agent is respectively made, covers into booth.1# booth uses the awning film not adding light-converting agent, and 2# booth is for adding the light conversion film prepared by the light-converting agent in example 18, and 3# booth is for using the light conversion film prepared by the light-converting agent in interpolation example 18 and applying carbonic acid gas.3# booth A, B manufacture film again for adding coating ruddiness light-converting agent and first making master batch, and 3# booth C is that coating ruddiness light-converting agent is not made master batch but is added directly in film.Each booth specification is that the long 14 meters of X of wide 7 meters of X are high 3.5 meters.Three booths plant romaine lettuce simultaneously, and 3# booth 8 applyings every morning carbon dioxide of 5 minutes, is approximately 0.2% of gas weight in canopy.

The romaine lettuce comparative analysis data of three kinds of greenhouse gardenings are as follows, and often kind of booth selects three as a reference:

Embodiment 23

The light-converting film that the light-converting agent getting awning film and the interpolation embodiment 18 of not adding light-converting agent is respectively made, covers into booth.1# booth uses the awning film not adding light-converting agent, and 2# booth is for adding the light-converting film prepared by the light-converting agent in example 18, and 3# booth is for using the light-converting film prepared by the light-converting agent master batch in interpolation example 18 and applying carbonic acid gas.Each booth specification is that the long 14 meters of X of wide 7 meters of X are high 3.5 meters.Three booths plant black tea simultaneously, and 3# booth 8 applyings every morning carbon dioxide of 5 minutes, carbonic acid gas applied amount is 1% of gas weight in canopy.

The black tea analysis correlation data of plantation is as shown below:

First time plucks	1# booth	2# booth	3# booth
				Output/jin	1.1	1.5	2.6
Biochemical analysis keeps sample/jin	0.4	0.4	0.4
				Tea fresh leaves/jin processed	0.7	1.0	1.7
Water extraction/%	36.3	36.76	37.26
				Tea-polyphenol/%	27.9	27.35	28.92
Amino acid/%	3.58	3.6	3.41
				Trimethyl-xanthine/%	3.86	3.87	5.23
Phenol nitrogen ratio	7.79	7.59	8.48
				Obtained dry tea/g	81	112	196

Embodiment 24

The light conversion film that the light-converting agent getting awning film and the interpolation embodiment 21 of not adding light-converting agent is respectively made, covers into booth.1# booth uses the awning film not adding light-converting agent, and 2# booth is for adding the light-converting film prepared by the light-converting agent in example 21, and 3# booth is for using the light-converting film prepared by the light-converting agent in interpolation example 16 and applying carbonic acid gas.Each booth specification is that the long 14 meters of X of wide 7 meters of X are high 3.5 meters.3# booth A, B manufacture film again for adding coating ruddiness light-converting agent and first making master batch, and 3# booth C is that coating ruddiness light-converting agent is not made master batch but is added directly in film.Three booths plant Japanese Chinese cabbage simultaneously, and 3# booth 8 applyings every morning carbon dioxide of 5 minutes, carbonic acid gas applied amount is 2% of gas weight in canopy.

The Japanese Chinese cabbage comparative analysis data of three greenhouse gardenings are as follows:

Embodiment 25

The light-converting film that the light-converting agent getting awning film and the interpolation embodiment 1 of not adding light-converting agent is respectively made, covers into booth.1# booth uses the awning film not adding light-converting agent, and 2# booth is for adding the light-converting film prepared by the light-converting agent in example 1, and 3# booth is for using the light-converting film prepared by the light-converting agent in interpolation example 16 and applying carbonic acid gas.Each booth specification is that the long 14 meters of X of wide 7 meters of X are high 3.5 meters.3# booth A, B manufacture film again for adding coating ruddiness light-converting agent and first making master batch, and 3# booth C is that coating ruddiness light-converting agent is not made master batch but is added directly in film.Three booths plant leaf mustard simultaneously, and 3# booth 8 applyings every morning carbon dioxide of 5 minutes, carbonic acid gas applied amount is 0.5% of gas weight in canopy.Light-converting film booth and to add carbonic acid gas booth leaf mustard growing state good;

The leaf mustard harvest comparative analysis data of three greenhouse gardenings are as follows:

Embodiment 26

The light-converting film that the light-converting agent getting awning film and the interpolation embodiment 10 of not adding light-converting agent is respectively made, covers into booth.1# booth uses the awning film not adding light-converting agent, and 2# booth is for adding the light-converting film prepared by the light-converting agent in example 10, and 3# booth is for using the light-converting film prepared by the light-converting agent in interpolation example 16 and applying carbonic acid gas.3# booth A, B manufacture film again for adding coating ruddiness light-converting agent and first making master batch, and 3# booth C is that coating ruddiness light-converting agent is not made master batch but is added directly in film.Each booth specification is that the long 14 meters of X of wide 7 meters of X are high 3.5 meters.Three booths plant little tomato simultaneously, and 3# booth 8 applyings every morning carbon dioxide of 5 minutes, carbonic acid gas applied amount is 0.2% of gas weight in canopy.

The little tomato harvest comparative analysis data of three greenhouse gardenings are as follows:

Embodiment 27

The light-converting film that the light-converting agent getting awning film and the interpolation embodiment 16 of not adding light-converting agent is respectively made, covers into booth.1# booth uses the awning film not adding light-converting agent, and 2# booth is for adding the light-converting film prepared by the light-converting agent in example 16, and 3# booth is for using the light-converting film prepared by the light-converting agent in interpolation example 16 and applying carbonic acid gas.Each booth specification is that the long 14 meters of X of wide 7 meters of X are high 3.5 meters.3# booth A, B manufacture film again for adding coating ruddiness light-converting agent and first making master batch, and 3# booth C is that coating ruddiness light-converting agent is not made master batch but is added directly in film.Three booths plant potato simultaneously, and 3# booth 8 applyings every morning carbon dioxide of 5 minutes, carbonic acid gas applied amount is 0.2% of gas weight in canopy.

The potato harvest comparative analysis data of three greenhouse gardenings are as follows:

Prove through test, the alkaline-earth metal in above embodiment can adopt other alkaline-earth metal to replace; The rare earth metal used in above embodiment can adopt other rare earth metals to replace.

Embodiment in the present invention, only for the present invention will be described, does not form the restriction to right, other equivalent in fact substituting, all in scope that those skilled in that art can expect.

Claims

1. plant cover cultivation methods, is characterized in that, utilizes light conversion film to make booth or mulch film, forms a plant-growth space; Described light conversion film comprises film matrix, ruddiness light-converting agent and the first auxiliary agent; Described ruddiness light-converting agent weight is the 0.1-10% of described light conversion film weight; First auxiliary agent weight is the 0.1%-10% of described light conversion film weight; All the other are mainly film matrix;

Described ruddiness light-converting agent composition general formula is: Ca _1-x-yn _xsr _ys:Eu;

Wherein, 0≤x<1,0≤y<1, x+y<1;

N is one or more in alkaline-earth metal;

The component of described ruddiness light-converting agent also comprise in Cl or Li one or both.

2. plant cover cultivation methods according to claim 1, is characterized in that, described ruddiness light-converting agent emission wavelength is 380-480nm and 640-680nm for launching peak wavelength scope.

3. plant cover cultivation methods according to claim 1, is characterized in that, described ruddiness light-converting agent absorbing wavelength scope is 220-380nm and 480-620nm.

4. plant cover cultivation methods according to claim 1, is characterized in that, also comprises rare earth metal in described ruddiness light-converting agent, and its composition general formula is: Ca _1-x-yn _xsr _ys:Eu, TM; TM is one or more in rare earth metal.

5. plant cover cultivation methods according to claim 1, is characterized in that, described ruddiness light-converting agent preparation method is: according to its molecular formula proportioning, and the oxide compound and the fusing assistant that take the metallic element in ruddiness light-converting agent fully grind; Under reducing atmosphere condition, fully react at 600 DEG C ~ 1200 DEG C, namely obtain product.

6. plant cover cultivation methods according to claim 1, is characterized in that, described light conversion film comprises light-converting agent master batch, film matrix and the first auxiliary agent; Described light-converting agent master batch comprises master batch matrix, ruddiness light-converting agent and the second auxiliary agent; Described second auxiliary agent weight is the 1%-10% of described light-converting agent master batch weight; Ruddiness light-converting agent weight is the 0.1-10% of described light conversion film weight; In described light-converting agent master batch, all the other are mainly master batch matrix.

7. plant cover cultivation methods according to claim 6, is characterized in that, described master batch matrix and film matrix are same material.

8. plant cover cultivation methods according to claim 1, is characterized in that, in growing process, in described growing space, discharges carbon dioxide.

9. plant cover cultivation methods according to claim 8, is characterized in that, the carbon dioxide amount of discharging is the 0.01%-10% of growing space gas gross.

10. plant cover cultivation methods according to claim 9, is characterized in that, the application time of carbonic acid gas is 6 o'clock to 20 o'clock every day.

11. plant cover cultivation methods according to claim 1, is characterized in that, described plant is farm crop.