CN107828230A - It is a kind of to turn light transparent plastic canopy film and preparation method thereof for green cucumber - Google Patents
It is a kind of to turn light transparent plastic canopy film and preparation method thereof for green cucumber Download PDFInfo
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
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- C08K3/00—Use of inorganic substances as compounding ingredients
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Abstract
What the present invention was used for green cucumber turns light transparent plastic canopy film and preparation method thereof, including：A, benzazoles compound is taken, adds the pyrrolidones dihydric phosphate of N methyl 2 and hydrogen peroxide, carries out oxidation sweetening, obtains benzazoles compound of the oxygen substitution without sulphur；B, substitute to oxygen in the benzazoles compound without sulphur and add rare earth ion, be coordinated, composite light conversion agent is prepared；C, by composite light conversion agent and matrix resin, filler, surfactant, light stabilizer mixing extrusion-blown modling, transparent canopy film is obtained；D, transparent canopy film must be turned into the transparent canopy film of light by sided corona treatment, hot-forming.The present invention is a kind of to turn light transparent plastic canopy film for green cucumber, by increasing capacitance it is possible to increase gold-tinted and red, orange-colored light, excludes blue or green, purple light, promote cucumber to budding to bloom, reach the effect of volume increase, lift the utilization rate of sunshine, the service life of canopy film is extended, has effectively delayed canopy film aging speed.
Description
Technical field
The invention belongs to technical field prepared by agricultural canopy film, and in particular to a kind of to turn the transparent modeling of light for green cucumber
Material shed film and preparation method thereof.
Background technology
As the China of world population first, how to support 1,300,000,000 populations using limited cultivated land resource is always China's political affairs
One of mansion focus of attention problem.At present, one of Main Patterns of industrialized agriculture are various types of modeling canopy greenhouses, and this is also me
An important synopsis in " seed, biology, greenhouse, green " four large-engineerings that state's agricultural is being carried forward vigorously.China
The dosage position of agricultural film is at the forefront in the world, but still suffers from sizable gap compared with World Developed Countries in kind, quality.Light
According to quality and intensity be to influence one of most important factor of plant growth, how to improve illumination condition, fortification of plants it is photosynthetic
Effect, the efficiency of light energy utilization is improved, to obtain more preferable greenhouse effects and cultivation benefit, produce the Photo-ecology of suitable for plant growth
Environment, it is the Main Topics and research direction of modern agriculture.
" conversion film " is exactly that " turning exhibiting optical function masterbatch " manufactured canopy film afterwards is added in the raw material for producing common canopy film
When sunlight is through " conversion film ", ultraviolet (can burn plant tissue) and green glow (can be reflected and lose by plant) in sunlight
" light conversion matrix materiel " in envelope absorbs conversion, discharges the blue light and feux rouges favourable to plant growth, makes blue and red in canopy
The increase of color spectrum composition, improves efficiency of light energy utilization application results and shows, the greenhouse covered using " conversion film ", plant growth
Hurry up, bear fruit, result is more, strong stress resistance, precocity, volume increase and quality better.
Plant can absorb progress photosynthetic mainly 400nm-700nm visible ray, this part light and account for sun spoke
51% penetrated.During visible light-transmissive vinyl house film reaches plant leaf surface, about 5% energy is reflected, 2.5% or so
Energy falls through blade scattering, and 40%, which is used for transpiration, is consumed, and 2.5% or so is fallen by radiation loss, and remaining 0.5%-1% is used
In photosynthesis.Further, since acreage under cultivation is unreasonable, cause really to participate in photosynthetic energy only surplus 0.27%.Rare earth
Agricultural conversion film can solve the problems, such as that the efficiency of light energy utilization is low using light transfer principle, and then improve photosynthetic efficiency, promote
Enter plant growth, realize the effect of increasing both production and income.
Chinese invention patent application number application number 00101267.3 discloses a kind of agripast canopy film.Present invention be directed to that
One kind can utilize the novel agricultural plastic greenhouse film of crops particularly vegetables, fruit tree and flower culture, by adding inorganic-organic
Mixed type fluorescer, plastic greenhouse film can be made to possess two kinds of light functions, absorb wavelength unfavorable to crop growth in natural light
The green glow of ultraviolet light and 480-570nm for 200-400nm wave bands, being converted into the wavelength that crops photosynthesis needs most is
590-680nm orange light, launch the wavelength 410-470 that crop photosynthesis needs most blue light, 590-680nm it is orange red
Light and can improve canopy temperature 700-760nm infrared light.Under natural light irradiation, the farming cultivated under both vinyl houses
The kinds such as thing, fruit tree and flowers provide high photosynthetic capacity and improve canopy temperature, so as to reach promotion crop growthing development
With the purpose of increase fruit kind.
Chinese invention patent application number 201310657930.x discloses a kind of multi-functional polyethylene green house film, and the present invention is public
A kind of multi-functional polyethylene green house film is opened, its raw material is included according to mass parts：Low-density polyethylene material 95~110, cyclopentadienyl gold
Belong to linear polyethylene base-material 18~22, blood orange light transforming agent 0.05~1.1, blue light transforming agent 0.05~1.1, antioxidant 0.6
~1.6, glyceryl monoacetate 0.5~1.4, ultra-violet absorber 0.3~0.8；After above-mentioned raw materials are mixed, heated, heated
Temperature is 185 DEG C, heat time 6.5h, after the completion of heating, is fed simultaneously by three extruders, and squeezes into a head discharging,
Discharging cooling air cooling, then finally wind packed products to once drawing by second traction.Agricultural film produced by the invention has
The life-span is imitated up to 5 years, no drop extension of validity 6 months, it is stretched, puncture strength improves 20%, while high transmission rate, low haze
It is close with pure EVA film, it can make increasing crop yield 25% using this product.
Element sulphur all be present in most of light conversion films at present, film aging speed is fast；These films are all using addition
Coloured dyestuff or fluorescence light conversion agent, or the form using multilayer complex films, the multilayer prepared by different preparing raw materials are answered
Film is closed, to reach the purpose of the translucency of regulation film, promotes plant growth, but these colored dyes are to plant growth meeting
Cause necessarily to influence, relatively low to day light utilization efficiency, film service life is shorter.
The content of the invention
In view of the shortcomings of the prior art, present invention proposition is a kind of turns light transparent plastic canopy film and its system for green cucumber
Preparation Method, when solar radiation canopy film, action of ultraviolet light therein produces gold-tinted in benzazoles compound, dramatically increases Huang
Light quantity and red, the yellow, orange-colored light of transmission, exclude blue or green, purple light, can promote to budding to bloom, reach effect of increasing production；And using it is colourless,
Organic fluorescent compounds without sulphur are made the canopy film of the high grade of transparency, the significant increase utilization rate of sunshine, extend canopy film
Service life.
To solve the above problems, the present invention uses following technical scheme：
It is a kind of to turn light transparent plastic canopy film for green cucumber, comprise the following steps：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is carried out at 50~70 DEG C
Oxidation sweetening reacts, and the reaction time is 3~8h, obtains benzazoles compound of the oxygen substitution without sulphur；
B, rare earth ion is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps, is coordinated, prepared
Obtain composite light conversion agent；
C, the composite light conversion agent for obtaining b step is put into closed modeling with matrix resin, filler, surfactant, light stabilizer
Practice in machine, moulded at 100~150 DEG C and practice 10~20min, extrusion, form the shaping of pipe inflation, then cool down, draw, batch, obtain
To transparent canopy film；
D, the transparent canopy film for obtaining step c is by sided corona treatment, hot-forming, turn that obtained thickness is 0.005~0.015mm
The transparent canopy film of light.
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, wherein the benzazoles chemical combination
Thing is at least one of benzoxazoles class compound, benzothiazole compound, benzimidazoles compound.Benzazoles
Compound is coordinated to form composite light conversion agent after oxidation sweetening with rare earth ion, is added to the materials such as matrix resin, filler
In, by blowing be prepared it is colourless, without the transparent canopy film of sulphur, when solar radiation canopy film, action of ultraviolet light therein is in benzo
Azole compounds and produce gold-tinted, its remarkable result is with the transparent conversion film gold-tinted to be increased and through red, yellow, orange
Light, blue or green, purple light is excluded, can promote to budding to bloom, reach effect of increasing production；In addition, utilize organic fluorescent compounds colourless, without sulphur
It is made the canopy film of the high grade of transparency, the significant increase utilization rate of sunshine, extends the service life of canopy film.
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, wherein the benzazoles chemical combination
The mol ratio of thing and METHYLPYRROLIDONE dihydric phosphate, hydrogen peroxide is 0.1~5:1.5~6:3~10.Wherein N- first
Base -2-Pyrrolidone dihydric phosphate is catalyst, and hydrogen peroxide is oxidant, and the mass fraction of hydrogen peroxide is 30%.
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, rare earth gold wherein described in b step
The addition for belonging to ion is the 3~10% of benzazoles compound addition.
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, wherein the rare earth ion
At least one of barium, strontium, cerium.
The unique outer electronic structure of rare earth ion so that it easily absorbs near after organic or inorganic compound is formed
Ultraviolet light excites, thus launches the visible fluorescence transmitting corresponding to central ion.Rare-earth light-converting film, it is to utilize organic ligand
To the high-selenium corn of ultraviolet light, the high-luminous-efficiency of rare earth ion, and rare earth organic complex is distributed to existing multi-functional agriculture
Developed in film, there is the agricultural high polymer material of luminescence conversion light emitting function.Rare-earth light-converting film can be by sunshine
The overwhelming majority of the ultraviolet light unfavorable to plant growth is changed into the blood orange light that photosynthesis of plant can be utilized directly, passes through improvement
The illumination quality of crop, and then improve the chlorophyll content in crop body.Therefore, compared with normal film, agriculture can significantly be improved
The intensity of photosynthesis of crop, the gentle canopy temperature in ground is improved, nitrate content in crop disease index and fruit is reduced, accelerates fertility
Process, the content for improving Vc, carrotene and soluble sugar in crop yield 7-48%, increase fruit.
It is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, composite light conversion agent, matrix wherein described in step c
Resin, filler, surfactant, light stabilizer mass ratio are 1~5:50~80:5~20:0.5~2:0.1~5.
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, wherein the light stabilizer is receives
Rice TiO2。
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, wherein described in Step d at corona
The bombardment intensity of electrode is 5~15Wmin/m during reason2.The purpose of sided corona treatment is to change the surface energy of many stocks
Amount, makes it easy to that same printing-ink, coating material and adhesive are bonding, and all stocks are carried out at some in the fabrication process
Just there is preferable adhesiveness after reason.The sided corona treatment method of plastic sheeting：Apply high-frequency high-voltage in processing unit, make
Its corona discharge, produce tiny intensive hyacinthine spark.Effect of the caused various plasmas in highfield after air ionization
Under, accelerate and the plastic products in shock treatment device, the energy of these plasma particles typically at several to tens electron-volts,
It is close with the chemical bond energy of plastic molecules, accordingly, it is capable to induce the chemical bond rupture of frosting molecule and degrade, increases surface
Roughness.In corona discharge, substantial amounts of ozone can be also produced.Ozone is a kind of strong oxidizer, makes plastic surface layer molecular oxidation,
Produce carbonyls, per-compound etc..In addition, sided corona treatment also has except degreasing, steam and dust and dirt etc. act on, in process
After stating physics and chemical modification, the wetability and tack of frosting can be obviously improved.
Further, it is above-mentioned it is a kind of turn light transparent plastic canopy film for green cucumber, be wherein hot pressed into described in Step d
Type is to use temperature as 80~100 DEG C of hot-rolling roll forming.
A kind of what invention also provided that above-mentioned preparation method is prepared be used for green cucumber turns light transparent plastic canopy film.
The present invention is a kind of to turn light transparent plastic canopy film and preparation method thereof for green cucumber, using colourless benzothiazole
Class compound coordinates rare earth that efficient light conversion agent is made, and is added in transparent plastic canopy film, when the solar radiation canopy film, wherein
Action of ultraviolet light produce gold-tinted in benzazoles compound so that through canopy film gold-tinted increase and can more pass through
Red, orange-colored light, excludes blue or green, purple light, and red, yellow, orange-colored light increase can promote cucumber to budding to bloom, reach the effect of volume increase；
Further, utilization it is colourless, without high grade of transparency canopy film made of the composite light conversion agent of sulphur, be greatly improved the utilization of sunshine
Rate, extends the service life of canopy film, has effectively delayed canopy film aging speed.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
Prepared by the present invention be used for green cucumber to turn light transparent plastic canopy film step as follows：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is 0.5 according to mol ratio:
3:6 mixing, oxidation sweetening reaction is carried out at 50 DEG C, reaction time 8h, obtains benzazoles compound of the oxygen substitution without sulphur；
B, the rare earth of benzazoles compound quality 3% is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps
Metal ion, it is coordinated, composite light conversion agent is prepared；Its Rare Earth Metal Ions is rare-earth element cerium；
C, it is according to mass ratio by the composite light conversion agent that b step obtains and matrix resin, filler, surfactant, light stabilizer
5:50:20:2:0.5 mixing, it is put into closed modeling and practices in machine, moulded at 150 DEG C and practice 10min, extrusion, form pipe and be blown into
Type, then cool down, draw, batch, obtain transparent canopy film；Wherein, light stabilizer is nano-TiO2；
D, for the transparent canopy film for obtaining step c by sided corona treatment, hot-forming, the bombardment intensity of electrode is 10Wmin/m2,
Hot-forming is to use temperature that thickness is made and turns the transparent canopy film of light for 0.005mm for 100 DEG C of hot-rolling roll forming.
Using ion-chromatographic determination, this turns the sulfate ion content in the transparent canopy film of light, measures wherein sulphur indirectly and contains
Amount, and the transparent canopy film mechanical property of light, service life are turned to this and the canopy film are applied in green cucumber, the increasing of cucumber
Yield etc. is tested, and test result is shown in Table 1.
Embodiment 2
Prepared by the present invention be used for green cucumber to turn light transparent plastic canopy film step as follows：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is 5 according to mol ratio:
1.5:4 mixing, oxidation sweetening reaction is carried out at 60 DEG C, reaction time 5h, obtains benzazoles chemical combination of the oxygen substitution without sulphur
Thing；
B, the rare earth of benzazoles compound quality 5% is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps
Metal ion, it is coordinated, composite light conversion agent is prepared；Its Rare Earth Metal Ions is rare earth element barium and strontium；
C, it is according to mass ratio by the composite light conversion agent that b step obtains and matrix resin, filler, surfactant, light stabilizer
5:60:10:1:3 mixing, it is put into closed modeling and practices in machine, moulded at 120 DEG C and practice 15min, extrusion, form the shaping of pipe inflation,
Cool down, draw, batch again, obtain transparent canopy film；Wherein, light stabilizer is nano-TiO2；
D, for the transparent canopy film for obtaining step c by sided corona treatment, hot-forming, the bombardment intensity of electrode is 5Wmin/m2,
Hot-forming is to use temperature that thickness is made and turns the transparent canopy film of light for 0.010mm for 80 DEG C of hot-rolling roll forming.
Using ion-chromatographic determination, this turns the sulfate ion content in the transparent canopy film of light, measures wherein sulphur indirectly and contains
Amount, and the transparent canopy film mechanical property of light, service life are turned to this and the canopy film are applied in green cucumber, the increasing of cucumber
Yield etc. is tested, and test result is shown in Table 1.
Embodiment 3
Prepared by the present invention be used for green cucumber to turn light transparent plastic canopy film step as follows：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is 3 according to mol ratio:5:
10 mixing, oxidation sweetening reaction is carried out at 50 DEG C, reaction time 4h, obtains benzazoles compound of the oxygen substitution without sulphur；
B, the rare earth of benzazoles compound quality 8% is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps
Metal ion, it is coordinated, composite light conversion agent is prepared；Its Rare Earth Metal Ions is rare earth element barium, strontium and cerium；
C, it is according to mass ratio by the composite light conversion agent that b step obtains and matrix resin, filler, surfactant, light stabilizer
4:70:15:1.5:0.5 mixing, it is put into closed modeling and practices in machine, moulded at 130 DEG C and practice 15min, extrusion, form pipe and be blown into
Type, then cool down, draw, batch, obtain transparent canopy film；Wherein, light stabilizer is nano-TiO2；
D, for the transparent canopy film for obtaining step c by sided corona treatment, hot-forming, the bombardment intensity of electrode is 12Wmin/m2,
Hot-forming is to use temperature that thickness is made and turns the transparent canopy film of light for 0.010mm for 100 DEG C of hot-rolling roll forming.
Using ion-chromatographic determination, this turns the sulfate ion content in the transparent canopy film of light, measures wherein sulphur indirectly and contains
Amount, and the transparent canopy film mechanical property of light, service life are turned to this and the canopy film are applied in green cucumber, the increasing of cucumber
Yield etc. is tested, and test result is shown in Table 1.
Embodiment 4
Prepared by the present invention be used for green cucumber to turn light transparent plastic canopy film step as follows：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is 5 according to mol ratio:2:
8 mixing, oxidation sweetening reaction is carried out at 55 DEG C, reaction time 7h, obtains benzazoles compound of the oxygen substitution without sulphur；
B, the rare earth of benzazoles compound quality 3% is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps
Metal ion, it is coordinated, composite light conversion agent is prepared；Its Rare Earth Metal Ions is strontium of rare earth element；
C, it is according to mass ratio by the composite light conversion agent that b step obtains and matrix resin, filler, surfactant, light stabilizer
3:70:5:1:4 mixing, it is put into closed modeling and practices in machine, moulded at 110 DEG C and practice 20min, extrusion, forms the shaping of pipe inflation, then
Cool down, draw, batch, obtain transparent canopy film；Wherein, light stabilizer is nano-TiO2；
D, for the transparent canopy film for obtaining step c by sided corona treatment, hot-forming, the bombardment intensity of electrode is 15Wmin/m2,
Hot-forming is to use temperature that thickness is made and turns the transparent canopy film of light for 0.0010mm for 90 DEG C of hot-rolling roll forming.
Using ion-chromatographic determination, this turns the sulfate ion content in the transparent canopy film of light, measures wherein sulphur indirectly and contains
Amount, and the transparent canopy film mechanical property of light, service life are turned to this and the canopy film are applied in green cucumber, the increasing of cucumber
Yield etc. is tested, and test result is shown in Table 1.
Embodiment 5
Prepared by the present invention be used for green cucumber to turn light transparent plastic canopy film step as follows：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is 0.1 according to mol ratio:
2.5:5 mixing, oxidation sweetening reaction is carried out at 60 DEG C, reaction time 6h, obtains benzazoles chemical combination of the oxygen substitution without sulphur
Thing；
B, the rare earth of benzazoles compound quality 6% is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps
Metal ion, it is coordinated, composite light conversion agent is prepared；Its Rare Earth Metal Ions is rare-earth element cerium；
C, it is according to mass ratio by the composite light conversion agent that b step obtains and matrix resin, filler, surfactant, light stabilizer
2:60:10:1:3 mixing, it is put into closed modeling and practices in machine, moulded at 150 DEG C and practice 12min, extrusion, form the shaping of pipe inflation,
Cool down, draw, batch again, obtain transparent canopy film；Wherein, light stabilizer is nano-TiO2；
D, for the transparent canopy film for obtaining step c by sided corona treatment, hot-forming, the bombardment intensity of electrode is 12Wmin/m2,
Hot-forming is to use temperature that thickness is made and turns the transparent canopy film of light for 0.0015mm for 100 DEG C of hot-rolling roll forming.
Using ion-chromatographic determination, this turns the sulfate ion content in the transparent canopy film of light, measures wherein sulphur indirectly and contains
Amount, and the transparent canopy film mechanical property of light, service life are turned to this, and the canopy film is applied in green cucumber, the increasing of cucumber
Yield etc. is tested, and test result is shown in Table 1.
Comparative example 1
Commonly commercially available to turn light canopy film containing element sulphur, thickness 0.0015mm, using ion-chromatographic determination, this turns light canopy film
In sulfate ion content, measure wherein sulfur content, and mechanical property, service life to the canopy film indirectly, and should
Canopy film is applied in green cucumber, and rate of growth of cucumber etc. is tested, and test result is shown in Table 1.
Comparative example 2
Using common commercial clear canopy film, thickness 0.0015mm, using ion-chromatographic determination, this turns the sulfuric acid in light canopy film
Radical ion content, measures wherein sulfur content, and mechanical property, service life to the canopy film indirectly, and by the canopy film application
In green cucumber, rate of growth of cucumber etc. is tested, and test result is shown in Table 1.
The performance test for the product that the embodiment 1~5 of table 1 and comparative example 1, comparative example 2 obtain
It can be seen that the service life colourless, without the transparent canopy film of sulphur that the present invention is prepared is significantly larger than existing sulfur-bearing and turns light canopy film
And the service life of normal transparent canopy film.
Claims (10)
1. a kind of turn light transparent plastic canopy film for green cucumber, it is characterised in that comprises the following steps：
A, benzazoles compound is taken, adds METHYLPYRROLIDONE dihydric phosphate and hydrogen peroxide, is carried out at 50~70 DEG C
Oxidation sweetening reacts, and the reaction time is 3~8h, obtains benzazoles compound of the oxygen substitution without sulphur；
B, rare earth ion is added in benzazoles compound of the oxygen substitution without sulphur obtained to a steps, is coordinated, prepared
Obtain composite light conversion agent；
C, the composite light conversion agent for obtaining b step is put into closed modeling with matrix resin, filler, surfactant, light stabilizer
Practice in machine, moulded at 100~150 DEG C and practice 10~20min, extrusion, form the shaping of pipe inflation, then cool down, draw, batch, obtain
To transparent canopy film；
D, the transparent canopy film for obtaining step c is by sided corona treatment, hot-forming, turn that obtained thickness is 0.005~0.015mm
The transparent canopy film of light.
2. a kind of according to claim 1 turn light transparent plastic canopy film for green cucumber, it is characterised in that the benzo
Azole compounds are at least one of benzoxazoles class compound, benzothiazole compound, benzimidazoles compound.
A kind of turn light transparent plastic canopy film for green cucumber 3. according to claim 1 or claim 2, it is characterised in that described
Benzazoles compound and the mol ratio of METHYLPYRROLIDONE dihydric phosphate, hydrogen peroxide are 0.1~5:1.5~6:3~
10。
4. a kind of according to claim 1 turn light transparent plastic canopy film for green cucumber, it is characterised in that in b step
The addition of the rare earth ion is the 3~10% of benzazoles compound addition.
5. a kind of turn light transparent plastic canopy film for green cucumber according to claim 1 or 4 is described, it is characterised in that described
At least one of rare earth ion barium, strontium, cerium.
6. a kind of according to claim 1 turn light transparent plastic canopy film for green cucumber, it is characterised in that in step c
The composite light conversion agent, matrix resin, filler, surfactant, light stabilizer mass ratio are 1~5:50~80:5~20:0.5
~2:0.1~5.
7. a kind of turn light transparent plastic canopy film for green cucumber according to claim 1 or 6 is described, it is characterised in that described
Light stabilizer is nano-TiO2。
8. a kind of according to claim 1 turn light transparent plastic canopy film for green cucumber, it is characterised in that in Step d
The bombardment intensity of electrode is 5~15Wmin/m during the sided corona treatment2。
9. a kind of according to claim 1 turn light transparent plastic canopy film for green cucumber, it is characterised in that in Step d
It is described hot-forming to use temperature as 80~100 DEG C of hot-rolling roll forming.
10. turn the transparent modeling of light for green cucumber according to what preparation method described in claim 1~9 any one was prepared
Material shed film.
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