CN207626218U - A kind of agricultural light-diffusing film - Google Patents
A kind of agricultural light-diffusing film Download PDFInfo
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- CN207626218U CN207626218U CN201721691920.8U CN201721691920U CN207626218U CN 207626218 U CN207626218 U CN 207626218U CN 201721691920 U CN201721691920 U CN 201721691920U CN 207626218 U CN207626218 U CN 207626218U
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- dioptric
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- diffusing film
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
The utility model is related to agricultural technical field of membrane, and in particular to arrive a kind of novel agricultural light-diffusing film.The agricultural light-diffusing film is that stratified film spreads connection structure, is followed successively by protective layer, light modulation layer, dioptric layer and base membrane layer from outside to inside；The protective layer lower surface is provided with light modulation layer；The light modulation layer upper surface is provided with protrusion upward；The light modulation layer lower surface is provided with dioptric layer；The dioptric layer includes No.1 dioptric layer and No. two dioptric layers；No. two dioptric layer lower surfaces are provided with base membrane layer.
Description
Technical field
The utility model is related to agricultural technical field of membrane, and in particular to arrive a kind of novel agricultural light-diffusing film.
Background technology
Fast development economic at present, people's living standard are continuously improved therewith, for vegetables demand also continuous
Expand, to the requirement higher of vegetables quality and quality.Greenhouse is one of critical facility of modern agriculture, its development is first
Meet the requirement of people's consumption quality.Present Living consumption improves quickly, to the safe and healthy of vegetables, quality, commodity
Property have a strict demand, anti-season, pollution-free vegetable, melon and fruit are welcome by citizen deeply.Secondly, advanced technology is agriculturally obtaining more
Fast more preferable popularization and application.Due to greenhouse Commercial cultivation natural energy resources, implements Cultivation technique completely, water-saving irrigation technique, matches
Side's fertilising, standardized production technology, can be such that added value of product greatly improves, and more conducively establishing a batch has the high quality agricultural products of scale
Production base.Third mitigates planting industry investment risk.Agricultural planting industry is open-air plant, and frequent natural calamity is set by greenhouse
Cultivation technique is applied, effectively control can be obtained in investment risk or subduction, planting industry rate of return on investment are higher.Although and it is outdoor cultivation at
This is low, but natural risk and marketing risk are all very big, and benefit is unstable.Finally, winter nature luminous energy is efficiently used, production is high-quality
Vegetables in improper season.Since the optimum temperature of most vegetables production is in 20 to 30 degree, growth minimum temperature at least in 5 to 8 degree, passes through
Greenhouse facility can complete winter vegetable production.Day time temperature difference is big in greenhouse, and nutrition production period is long, watermelon, the muskmelon produced
And the quality of extension fruit type vegetable greatly improves, the yields have increased considerably.Based on this, reinforce greenhouse technology development very it is necessary to
's.
Existing agricultural canopy film is much all in sides such as the long-lived film of research, Anti-fogging Film, insulation film, antibacterial film and light-transmissive films
Face, but some demands of area to plastic film for agricultural use are very big, but since the characteristics of region causes general plastic film for agricultural use difficulty that can meet
It is required that.For example, Xinjiang morning and evening illumination difference is larger, noon illumination is very strong, and temperature of shed is high or even temperature is excessively high and leads to farming
The growth of object is affected；And morning and evening illumination are weak, light transmittance is low, temperature of shed, and temperature is too low is also unfavorable in canopy
The growth of crops.For greenhouse, the solar irradiance and the outer solar irradiance of canopy in canopy are in close relations.Solar radiation is worn
It crosses atmosphere and reaches earth's surface, be unique lamp of greenhouse.In heliogreenhouse shed the size of intensity of illumination by absorptivity, dissipate
Penetrate the influence of rate and transmitance, though reflectivity by front roof angle, film uniform strength, cover the smooth journey of film on frame
Dust and water droplet adhere to the influence of many factors such as how many, wherein effect of the scattering of light to intensity of illumination in canopy on degree, film
It can not be ignored.Therefore study a kind of can be the plastic film for agricultural use that automatically adjust intensity of illumination to a certain extent by the scattering of light
It is necessary to.
Utility model content
In order to solve existing technical problem, the utility model provides a kind of agricultural light-diffusing film, and the agricultural light-diffusing film is
Stratified film spreads connection structure, is followed successively by protective layer, light modulation layer, dioptric layer and base membrane layer from outside to inside；The protective layer following table
Face is provided with light modulation layer；The light modulation layer upper surface is provided with protrusion upward；The light modulation layer lower surface is provided with dioptric layer；
The dioptric layer includes No.1 dioptric layer and No. two dioptric layers；No. two dioptric layer lower surfaces are provided with base membrane layer.
As a kind of perferred technical scheme, the material of the protective layer is polyvinylidene fluoride material.
As a kind of perferred technical scheme, the thickness of the protective layer is 5~10 microns.
As a kind of perferred technical scheme, the protrusion is multifaceted prism shape.
As a kind of perferred technical scheme, the protrusion is triangular prism shape.
As a kind of perferred technical scheme, the material of the No.1 dioptric layer is polymethyl methacrylate materials.
As a kind of perferred technical scheme, the thickness of the No.1 dioptric layer is 8~12 microns.
As a kind of perferred technical scheme, the material of No. two dioptric layers is polyethylene terephthalate material
Material.
As a kind of perferred technical scheme, the thickness of No. two dioptric layers is 3~5 microns.
As a kind of perferred technical scheme, the material of the base membrane layer is polythene material, and thickness is 20~60 microns.
Advantageous effect：Agricultural light-diffusing film provided by the utility model reaches good using the structure of multilayer layer paving connection
The effect of refractive power astigmatism.The agricultural light-diffusing film outermost layer setting Kynoar is the protective layer of material, is protected using high intensity
While cuticula is not by breakage, makes to fall using its earth's surface tension and be easy to fall in the dust of film surface, and is unlikely to cohesive
In film surface, causes the translucency of film to weaken, influence the comprehensive performance of film.Protective layer lower surface is provided with light modulation layer, utilizes it
The bulge-structure of outer surface changes the incidence angle of sunlight, is emitted into again after weak and easy reflected light line is concentrated
In canopy, make full use of sunray, also ensure the sunlight enough to crop in canopy in the weak weather of the light such as rainy days, for its into
Row photosynthesis ensures plant normal growth.Light modulation layer inner surface is provided with two layers of dioptric layer, utilizes two layers of different refractive powers
Rate will transmit through the angle of incidence of light to shine in after light modulation layer light modulation and further be adjusted so that light is becoming equal
It is even soft, it will not be too strong or too weak.In this way can to avoid due to sooner or later it is different with incidence angle with midday sun luminous intensity, lead
Cause the light intensity that the different face of canopy implants is irradiated to different, the different face of crop carry out photosynthetic ability it is different and
Influence its normal growth.Finally, one layer of base membrane layer is set in internal layer in agricultural light-diffusing film, using polythene material, makes agricultural dissipate
While light film has higher intensity, light transmittance and service life, production cost is reduced, economic benefit is brought.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of agricultural light-diffusing film.
Symbol description：1- protective layers, 2- light modulation layers, 3- No.1s dioptric layer, No. bis- dioptric layers of 4-, 5- base membrane layers, 6- protrusions.
Specific implementation mode
Participate in the election of following the utility model preferred implementation method detailed description and including embodiment can be more easily understood
The content of the utility model.Unless otherwise defined, all technologies used herein and scientific terminology has and the utility model
The normally understood identical meaning of one skilled in the art.When there is a conflict, the definition in this specification shall prevail.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in the utility model fields.Also
It should be understood that those terms such as defined in the general dictionary should be understood that with in the context of the prior art
The consistent meaning of meaning, and only define, will not be explained with the meaning of idealization or too formal as here.
The meaning of " inside and outside " described in the utility model refers to relative to canopy film itself, being directed toward inside greenhouse
Direction be it is interior, otherwise is outer, rather than the equipment mechanism to the utility model specific restriction.
At 0.03~0.14 millimeter, the agricultural light-diffusing film is a kind of agricultural light-diffusing film overall thickness provided by the utility model
Stratified film spreads connection structure, is followed successively by protective layer -1, light modulation layer -2, dioptric layer and base membrane layer -5 from outside to inside；The protection
- 1 lower surface of layer is provided with light modulation layer -2；- 2 upper surface of the light modulation layer is provided with protrusion -6 upward；Under the light modulation layer -2
Surface is provided with dioptric layer；The dioptric layer includes No.1 dioptric layer -3 and No. two dioptric layers -4；Under No. two dioptric layers -4
Surface is provided with base membrane layer -5.
In a preferred embodiment, the material of the protective layer is polyvinylidene fluoride material.
The outermost layer in this agricultural light-diffusing film is arranged in polyvinylidene fluoride material, its high intensity and low surface can be utilized
Tension avoids the film from tearing and destroy in use, and dust is avoided to be bonded in astigmatism film surface, weakens the saturating of film
Light rate.In addition, polyvinylidene fluoride material can light transmittance be higher when the morning and evening, illumination was weak, temperature of shed is also higher；Noon illumination
Light transmittance reduces when strong, and temperature of shed is relatively low.This canopy film can prevent high temperature season and noon canopy temperature excessively high, be conducive to warm in canopy
Degree is stablized, uniform illumination.Since polyvinylidene fluoride material has certain reflective function, so its thickness cannot be too thick, and too
Bao Zehui does not have protective effect.
In a preferred embodiment, the thickness of the protective layer is 5~10 microns.
In a preferred embodiment, the protrusion is multifaceted prism shape.
Multifaceted prism shape bulge-structure upward is set in the utility model in light modulation layer, sunlight is made to penetrate protective layer
When being irradiated in light modulation layer, since the multifaceted prism shape bulge-structure in light modulation layer surface changes the incidence angle of light.In the morning
With evening sunray irradiation it is weak when, can utilize multifaceted prism shape bulge-structure refraction and scattering the effects that, to the greatest extent may be used
The reflection to light can be reduced, while weak sunlight being concentrated as far as possible, is launching, is making full use of sunlight as far as possible
Line.
In a preferred embodiment, the protrusion is triangular prism shape.Triangular prism shape structure simple structure, and
And after light shines in from its different face, it can reach collection by the effects that refraction of its lap, scattering or reflection
The effect of middle light.
In a preferred embodiment, the material of the No.1 dioptric layer is polymethyl methacrylate materials.
In a preferred embodiment, the thickness of the No.1 dioptric layer is 8~12 microns.
In a preferred embodiment, the material of No. two dioptric layers is polyethylene terephthalate material
Material.
In a preferred embodiment, the thickness of No. two dioptric layers is 3~5 microns.
In a preferred embodiment, the material of the base membrane layer is polythene material, and thickness is 20~60 microns.
Dioptric layer in the utility model is using two layers of setting, and upper layer is No.1 dioptric layer, and material is polymethylacrylic acid
The material of methyl methacrylate material, No. two dioptric layers is pet material, and thickness is 3~5 microns.It is rolled over using No.1
The big refractive index of the small refractive index and No. two dioptric layers of photosphere makes to obtain collection from light modulation layer to neutralize the sunray of enhancing and pass through
Dioptric layer further changes incident angle.In this way can to avoid due to noon sunray it is strong, and, Er Qie weak in morning and evening light
Sooner or later different with the incidence angle at noon, the light intensity that the face for causing canopy implants different is irradiated to is different, different in crop
The face photosynthetic ability of progress is different and influences its normal growth.The light transmittance of polymethyl methacrylate materials is very high,
Up to 92% or more, and its intensity is also very high, can enhance agricultural astigmatism film strength, therefore its thickness can be thicker.And
Pet material has certain crystallinity, and light transmittance is weaker, therefore its thickness is not easy blocked up, otherwise subtracts
The light transmittance of weak agricultural light-diffusing film, influences the normal growth of crop in canopy.
Find that No.1 dioptric layer and the floor paving sequence of No. two dioptric layers cannot be exchanged by the multiple research of the applicant, only
Have when the lower No.1 dioptric layer of index of refraction is located above higher No. two dioptric layers of index of refraction, the compound dioptric layer pair
The refraction effect of light is best, otherwise refraction effect is bad, and refracted light weakened.Applicants contemplate that possible original
Because be since the refractive index of protective layer is relatively low, it is close with the index of refraction of polymethyl methacrylate, and and poly terephthalic acid
Glycol ester difference is larger, and therefore, protective layer is rolled over when No. two dioptric layers of polyethylene terephthalate being arranged directly below
Photosphere is stronger to the reflection of light, and the light of transmission weakens, and influences utilization rate of the agricultural light-diffusing film to light.
For innermost layer using polythene material as its base membrane layer, which is the common material of agricultural canopy film in the utility model
Material has higher intensity, transparency and service life, and the cost of polythene material is low in addition, reduces the life of agricultural light-diffusing film
Produce cost.
The current material that the material of each layer is all well known to those skilled in the art in light-diffusing film provided by the utility model,
It can be obtained from purchase on the market.
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
Embodiment
Embodiment 1
As shown in Figure 1, embodiment 1 provides a kind of agricultural light-diffusing film, the agricultural light-diffusing film is stratified film paving connection
Structure is followed successively by protective layer -1, light modulation layer -2, dioptric layer and base membrane layer -5 from outside to inside；- 1 lower surface of the protective layer is arranged
There is light modulation layer -2；- 2 upper surface of the light modulation layer is provided with protrusion -6 upward；- 2 lower surface of the light modulation layer is provided with refractive power
Layer；The dioptric layer includes No.1 dioptric layer -3 and No. two dioptric layers -4；- 4 lower surface of No. two dioptric layers is provided with basement membrane
Layer -5.
The material of the protective layer -1 is polyvinylidene fluoride material, and thickness is 5 microns；The protrusion -6 is triangular prism
Shape；The material of the No.1 dioptric layer -3 is polymethyl methacrylate materials, and thickness is 8 microns；No. two dioptric layers -4
Material be pet material, thickness be 3 microns；The material of the base membrane layer -5 is polythene material,
Thickness is 20 microns.
Embodiment 2
As shown in Figure 1, embodiment 2 provides a kind of agricultural light-diffusing film, the agricultural light-diffusing film is stratified film paving connection
Structure is followed successively by protective layer -1, light modulation layer -2, dioptric layer and base membrane layer -5 from outside to inside；- 1 lower surface of the protective layer is arranged
There is light modulation layer -2；- 2 upper surface of the light modulation layer is provided with protrusion -6 upward；- 2 lower surface of the light modulation layer is provided with refractive power
Layer；The dioptric layer includes No.1 dioptric layer -3 and No. two dioptric layers -4；- 4 lower surface of No. two dioptric layers is provided with basement membrane
Layer -5.
The material of the protective layer -1 is polyvinylidene fluoride material, and thickness is 10 microns；The protrusion -6 is triangular prism
Shape；The material of the No.1 dioptric layer -3 is polymethyl methacrylate materials, and thickness is 12 microns；No. two dioptric layers -4
Material be pet material, thickness be 5 microns；The material of the base membrane layer -5 is polythene material,
Thickness is 60 microns.
Example above-mentioned is merely illustrative, some features of the feature for explaining the disclosure.The attached claims
It is intended to the range as wide as possible for requiring to be contemplated that, and embodiments as presented herein is only according to all possible embodiment
Combination selection embodiment explanation.Therefore, the purpose of applicant is that the attached claims are not illustrated this practicality
The exemplary selectional restriction of novel feature.And the progress in science and technology will be formed due to the inaccuracy that language is expressed
And the possible equivalent or son not being presently considered are replaced, and these variations should also be interpreted by institute in the conceived case
Attached claim covering.
Claims (10)
1. a kind of agricultural light-diffusing film, which is characterized in that the agricultural light-diffusing film be stratified film spread connection structure, from outside to inside according to
Secondary is protective layer, light modulation layer, dioptric layer and base membrane layer；The protective layer lower surface is provided with light modulation layer；The light modulation layer upper table
Face is provided with protrusion upward；The light modulation layer lower surface is provided with dioptric layer；The dioptric layer includes No.1 dioptric layer and two
Number dioptric layer；No. two dioptric layer lower surfaces are provided with base membrane layer.
2. agricultural light-diffusing film as described in claim 1, which is characterized in that the material of the protective layer is Kynoar material
Material.
3. agricultural light-diffusing film as described in claim 1, which is characterized in that the thickness of the protective layer is 5~10 microns.
4. agricultural light-diffusing film as described in claim 1, which is characterized in that the protrusion is multifaceted prism shape.
5. agricultural light-diffusing film as claimed in claim 4, which is characterized in that the protrusion is triangular prism shape.
6. agricultural light-diffusing film as described in claim 1, which is characterized in that the material of the No.1 dioptric layer is polymethyl
Methyl acrylate material.
7. agricultural light-diffusing film as claimed in claim 6, which is characterized in that the thickness of the No.1 dioptric layer is 8~12 microns.
8. agricultural light-diffusing film as described in claim 1, which is characterized in that the material of No. two dioptric layers is poly- terephthaldehyde
Sour glycol ester material.
9. agricultural light-diffusing film as described in claim 1, which is characterized in that the thickness of No. two dioptric layers is 3~5 microns.
10. agricultural light-diffusing film as described in claim 1, which is characterized in that the material of the base membrane layer is polythene material, thick
Degree is 20~60 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691920.8U CN207626218U (en) | 2017-12-07 | 2017-12-07 | A kind of agricultural light-diffusing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691920.8U CN207626218U (en) | 2017-12-07 | 2017-12-07 | A kind of agricultural light-diffusing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207626218U true CN207626218U (en) | 2018-07-20 |
Family
ID=62854150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721691920.8U Active CN207626218U (en) | 2017-12-07 | 2017-12-07 | A kind of agricultural light-diffusing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207626218U (en) |
-
2017
- 2017-12-07 CN CN201721691920.8U patent/CN207626218U/en active Active
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