CN204241713U - A kind of novel optical polymer composite film - Google Patents
A kind of novel optical polymer composite film Download PDFInfo
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- CN204241713U CN204241713U CN201420787489.7U CN201420787489U CN204241713U CN 204241713 U CN204241713 U CN 204241713U CN 201420787489 U CN201420787489 U CN 201420787489U CN 204241713 U CN204241713 U CN 204241713U
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Abstract
The utility model discloses a kind of novel optical polymer composite film, comprising: substrate and optical thin film; Substrate adopts polymeric material to make, optical thin film is suppressed or is covered at substrate surface, optical thin film is formed by stacking by M unit membrane, wherein M > 2, the optical film that each unit membrane adopts polymeric material to make by N layer is formed by stacking, wherein N=2 or N=3, every layer of optical film has predetermined thickness, and the two-layer optical film of arbitrary neighborhood has different refractive indexes.According to practical application needs, designed by the thickness to every layer of optical film in the quantity of unit mould in optical thin film and unit mould, refractive index and rete distribution, the different optical characteristic of optical thin film can be realized.In the utility model, the technique of described novel optical polymer composite film is simple, cheap, can be widely used in field of agricultural cultivation.
Description
Technical field
The utility model relates to thin film technique field, particularly relates to a kind of novel optical polymer composite film.
Background technology
Optical thin film is one or more layers other materials of surface coverage at base material, changes the transmissivity of predetermined band light and the object of reflectivity to reach.In general, the thickness of rete is in the magnitude of optical wavelength, and the thickness by changing rete changes the effect wave band of optical thin film.With reference to Fig. 1, for the rete of fixed thickness, the light path (i.e. phase differential) that the light of different-waveband is corresponding is different, and the intensity after its coherence stack is different, and this just correspond to different transmissivities and reflectivity.Current, optical thin film has been widely used in optics and photoelectron technical field, for the manufacture of the various instrument with specific optical effect.
In actual application, conventional optical filming material mainly comprises metal film and deielectric-coating, the requirement of the good optical thin film of optical effect to the purity of Coating Materials, the thickness of rete and homogeneity is higher, therefore its price also costly, which limits this optical thin film to the application of other industries and popularization, such as, in the agriculture hot house field that field of agricultural cultivation has used on a large scale.
The growth of crops depends on environment, and agriculture hot house and some techiques are the environment that crops create that is applicable to a growth more, and wherein, luminous environment is exactly very important a kind of environmental factor.Ruddiness, blue light are in two peak value places of photosynthesis of plant spectrum, being affect the topmost light source of plant growth, be also the light source that plant has the call, and the light of other wavelength is relatively little on photosynthetic impact, there are some researches show, the growth of green glow to certain plants has certain acting in opposition.Especially in summer, strong sunlight not only makes crops be in Xanthophyll cycle state, also makes the moisture in crops and soil evaporate in a large number, and this is seriously disadvantageous to the growth of crops.
Therefore, if can be applied in agricultural by optical thin film, by reducing the component of green glow, removing infrared light is this does not have effect and the more serious light source of thermal effect to photosynthesis, removing has the ultraviolet light of destruction to vegetable cell, this can promote the growth of crops.If the light not used for plant growth can be used again, such as disclosed in Chinese patent application CN103997285A, a kind of solar energy composite for planting greenhouse utilizes system, just additional economic benefit can be produced, calculate with the cultivated area of 1,800,000,000 mu, China, if 1% transform comprehensive photovoltaic agricultural base as, with the photoelectric transformation efficiency estimation of 10%, its installed capacity can reach 1000GW, generated energy is equivalent to 50 pipe of reinforced concrete at Three Gorges Power Stations, and its additional income that can bring is appreciable.
But, the metal film that current technology is comparatively ripe and deielectric-coating because of its price costly, temporarily do not possess and carry out to field of agricultural cultivation the condition promoted, limit the application of optical thin film in field of agricultural cultivation.
Applicant notices in the process realizing the application, if adopt polymeric material as optical film materials, such as tygon (PE) material, its cost of manufacture just can reduce widely.PE material has high, medium and low density shelves, the density of PE material, refractive index controllable, thus provide very large selection space for the design of optical thin film, and, existing dissimilar a lot of with the product of the PE material of function, production technology is also comparatively ripe, lays a good foundation for optical thin film is converted into the product being convenient to the popularization of applying.
Utility model content
Based on the technical matters that background technology exists, the utility model proposes a kind of novel optical polymer composite film.
A kind of novel optical polymer composite film that the utility model proposes, comprising: substrate and optical thin film; Substrate adopts polymeric material to make, optical thin film is suppressed or is covered at substrate surface, optical thin film is formed by stacking by M unit membrane, wherein M > 2, the optical film that each unit membrane adopts polymeric material to make by N layer is formed by stacking, wherein N=2 or N=3, every layer of optical film has predetermined thickness, and the two-layer optical film of arbitrary neighborhood has different refractive indexes.
Preferably, M unit membrane has identical physical arrangement and optical characteristics, and wherein, the optical characteristics of optical thin film comprises transmissison characteristic and reflection characteristic, and light transmission characteristics comprises transmittance spectrum and printing opacity light intensity, and reflection characteristic comprises reflectance spectrum and reflective light intensity.
Preferably, in unit membrane, the optical film with different refractivity is made up of the polymeric material with different densities, and/or the optical film with different refractivity is made up of the polymeric material with different doping.
Preferably, polymeric material is polythene material.
Preferably, substrate is polymethylmethacrylasheet sheet material.
Preferably, the shady face of polymethylmethacrylasheet sheet material is guide-lighting template or astigmatism template.
Preferably, the shape of polymethylmethacrylasheet sheet material is parabolic shape.
Preferably, substrate is polyethylene film.
In the utility model, make by covering optical thin film at substrate surface; Substrate adopts polymeric material to make, optical thin film is formed by stacking by M unit membrane, wherein M > 2, the optical film that each unit membrane adopts polymeric material to make by N layer is formed by stacking, wherein N=2 or N=3, every layer of optical film has predetermined thickness, and the two-layer optical film of arbitrary neighborhood has different refractive indexes.Wherein, substrate is polymethylmethacrylasheet sheet material or polyethylene film, and the optical film with different refractivity can by having the polythene material of different densities and/or being made up of the polythene material with different doping.
In actual application, designed by the thickness of every layer of optical film in the quantity of unit mould in optical thin film and unit mould, refractive index and rete distribution, what achieve optical characteristics is adjustable, meets the different optical characteristic requirements of optical thin film.
In the utility model, the technique of novel optical polymer composite film is simple, can realize large-scale production by the industrialization by means of polymkeric substance, cheap, and it has application scenarios widely and range of application.Such as, novel optical polymer composite film is applied in field of agricultural cultivation, can efficiency utilization sun power to a greater extent, promote the growing environment of crops, heat insulation moisturizing, save water resource, for arid or the agricultural production of desert area, environmental improvement provide better solution route.
Accompanying drawing explanation
Fig. 1 is structural representation and the optical principle schematic diagram of optical thin film in prior art.
Fig. 2 is the structural representation of a kind of novel optical polymer composite film proposed in the utility model.
Fig. 3 is the design sketch that light passes through guide-lighting template.
Fig. 4 is the design sketch of light by astigmatism template.
Fig. 5 is the structural representation suppressing optical thin film in the utility model in substrate.
Embodiment
As shown in Figure 2, a kind of novel optical polymer composite film that the utility model embodiment proposes, comprising: substrate and optical thin film; Substrate adopts polymeric material to make, optical thin film is suppressed or is covered at substrate surface, optical thin film is formed by stacking by M unit membrane, wherein M > 2, the optical film that each unit membrane adopts polymeric material to make by N layer is formed by stacking, wherein N=2 or N=3, every layer of optical film has predetermined thickness, and the two-layer optical film of arbitrary neighborhood has different refractive indexes.
In a particular embodiment, in optical thin film, M unit membrane setting has identical physical arrangement and optical characteristics; Particularly, in M unit membrane, the number of plies N of optical film, the thickness of every layer of optical film, refractive index are all identical with physical arrangements such as rete distributions, thus make M unit membrane have identical optical characteristics.Adopt above-mentioned arrangement, in M × N layer optical film of optical thin film, any one deck optical film periodically will repeat superposition.
In the manufacturing process of film, optical thin film covers substrate surface by compacting or the mode that covers and obtains, particularly, multilayer optical film-stack is placed on substrate surface in pressing process and compacting forms, utilizes Multi-layer blown film mode to make multilayer optical film and cover to make at matrix surface covering in process.
In the first specific embodiment, substrate adopts polymethylmethacrylasheet sheet material, and also known as acryl plates, it is the optical grade sheet material of hard, it has good transmittance (transmittance is greater than 92%), and has very large physical strength and shock resistance.
As shown in Figure 3, the shady face of acryl plates guide-lighting template can be made, as shown in Figure 4, the shady face of acryl plates astigmatism template can be made.The shady face of acryl plates is made guide-lighting template, the distribution of the light be radiated on crops can be increased when the incident angle of light is larger; The shady face of acryl plates is made astigmatism template, and can make each point radiation direction stochastic distribution on transparent surface, the distribution of luminous energy on ground level is more even; When the sunshine of parallel incidence and the angle of ground normal larger time, also make more ray cast on the crops on ground.
Wherein, the technical process making novel optical polymer composite film at the surface of acryl plates compacting optical thin film comprises: S1, acryl plates is made predetermined shape (such as parabolic shape) and thickness, and adopts mould that the shady face of acryl plates is made guide-lighting template or astigmatism template; S2, optical characteristics designing requirement according to optical thin film, multilayer optical rete is overlayed from level to level the surface of acrylic board, the thickness of optical film to hundred micron dimensions, applies lubricant on the outermost optical film surface away from acryl plates at ten microns; S3, acryl plates in S2 and stacked multilayer optical rete be placed in environment of heating multilayer optical rete is softened; S4, adopt rolling device to carry out suppressing to predetermined thickness to optical film, in pressing process, control the dynamics of compacting and speed well is evenly distributed to make multiple blooming, as shown in Figure 5, obtains described novel optical polymer composite film.
Wherein, cover the technical process that optical thin film makes novel optical polymer composite film to comprise on the surface of acryl plates: S1, acryl plates is made predetermined shape (such as parabolic shape) and thickness, and adopt mould that the shady face of acryl plates is made guide-lighting template or astigmatism template; S2, optical characteristics designing requirement according to optical thin film, utilize the blowing of Multi-layer blown film mode to obtain multilayer optical rete; S3, at a predetermined temperature, apply the adhesive of one deck molten condition on the surface at acryl plates, then S2 blowing multilayer optical rete is out covered the surface at acryl plates, obtain described novel optical polymer composite film.
In the second specific embodiment, substrate adopts polyethylene film, and its quality is pliable and tough, is convenient to storage, the common used material of the plastic house film of existing field of agricultural cultivation; Suppress on the surface of polyethylene film or cover optical thin film and make novel optical polymer composite film, the technical process basic simlarity that optical thin film makes novel optical polymer composite film is suppressed on its manufacturing process and the above-mentioned surface at Ya Like sheet material.
In a particular embodiment, base material is not limited to acryl plates and polyethylene film, can also select other more economically high-quality, be convenient to promote material.
In actual application, in the manufacturing process of optical thin film, can according to the optical characteristics of optical thin film, the thickness of every layer of optical film in the quantity M of unit mould in optical thin film and unit mould, refractive index and rete distribution are designed, what achieve optical characteristics is adjustable, meets the different optical characteristic requirements of optical thin film; Wherein, the optical characteristics of optical thin film comprises transmissison characteristic and reflection characteristic, and light transmission characteristics comprises transmittance spectrum and printing opacity light intensity, and reflection characteristic comprises reflectance spectrum and transmittance spectrum.
When specific design, the quantity M of unit mould can select to be greater than 2, such as, M can be selected to be greater than 10 according to the needs of optical characteristics, and, comprise 2 layers or 3 layers of optical film are formed by stacking at each unit membrane; In the N layer optical film of unit membrane, as N=2, the refractive index of two-layer optical film is different, as N=3, ground floor optical film is different with the refractive index of second layer optical film, second layer optical film is different with the refractive index of third layer optical film, and ground floor is different with the refractive index of third layer optical film, also can design ground floor identical with the refractive index of third layer optical film according to the requirement of optical characteristics.
Optical thin film is formed by stacking by M unit membrane, and in the N layer optical film of each unit membrane, the two-layer optical film of arbitrary neighborhood has different refractive indexes; Density based on polymkeric substance is different or carry out the change that different doping all can affect its refractive index; Therefore, the optical film with different refractivity can adopt the polythene material of different densities to make, and/or the optical film with different refractivity also can adopt the polythene material of different doping to make.
Certainly, optical film can also adopt other polymeric materials to be prepared from, as long as there is refringence between the two-layer optical film of arbitrary neighborhood just can realize the technical solution of the utility model.
In specific design process, in unit membrane, N layer optical film can adopt multiple combination form.
Such as, as N=2, two-layer optical film adopts two kinds of polythene materials with different densities to make, or, two-layer optical film adopts two kinds of polythene materials with different doping to make, or wherein one deck of two-layer optical film does not adulterate in polythene material and another layer has carried out adulterating and both refractive indexes are different at polythene material.
Such as, as N=3, three layers of optical film adopt three kinds of polythene materials with different densities to make, or, three layers of optical film adopt three kinds of polythene materials with different doping to make, or, wherein two-layer employing two kinds of polythene materials with different densities of three layers of optical film are made, and another layer adopts and carries out doping make in polythene material, or, the wherein two-layer employing two kinds of three layers of optical film has the different polythene material adulterated and makes, and another layer adulterates in polythene material.
The novel optical polymer composite film that the utility model proposes, its technique is simple, can realize large-scale production by the industrialization by means of polymkeric substance, cheap, has application scenarios widely and range of application.
Such as, novel optical polymer composite film of the present utility model can be applied in field of agricultural cultivation.
First aspect, is used in the application as light filter film in field of agricultural cultivation using novel optical polymer composite film of the present utility model.Can suppress on acryl plates or cover optical thin film and make filtering apparatus, by the design of the rete distribution of the number of plies of optical film, the thickness of every layer of optical film and refractive index and multilayer optical rete, this filtering apparatus can reflect the light (such as green glow) of other wavelength through the light of predetermined wavelength range (such as ruddiness, blue light), thus more efficiency utilization sun power, not only make sunshine provide to greatest extent and meet the useful energy of crop growth, and by blocking predetermined light to improve the growing environment of crops.Further, acryl plates can be made parabolic shape, the light of reflection is assembled at paraboloidal focal plane place and be can be used for generating, luminous energy for generating electricity only have lost the red blue light of a part less in sunshine, like this, while guarantee crop growth, remaining light can be converted into electric energy.
Second aspect, is used in the application as cover film in field of agricultural cultivation using novel optical polymer composite film of the present utility model.Suppress or cover optical thin film at the bottom of polyvinyl and make planting greenhouse coverlay, by the number of plies of optical film, the design of the rete distribution of the thickness of every layer of optical film and refractive index and multilayer optical rete, optical thin film can pass through the visible ray of visible wavelength range, thus the sunshine do not affected required for crop growth, and the light of predetermined wavelength range can be reflected, wherein the light of predetermined wavelength range comprises infrared light and ultraviolet light, the environment temperature in coverlay can be reduced by blocking-up infrared light, decrease the evaporation of moisture in summer, heat insulation moisturizing, save water resource, its destruction to crop plant cells can be reduced by blocking ultraviolet light, promote the growing environment of crops.Novel optical polymer composite film is used in field of agricultural cultivation can substitute traditional planting greenhouse coverlay as cover film; Further, described planting greenhouse coverlay can to arid area, desert region promotes, this to improving arid or the agricultural production of desert region, environmental improvement provides better solution route, it will play very useful effect.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (8)
1. a novel optical polymer composite film, is characterized in that, comprising: substrate and optical thin film; Substrate adopts polymeric material to make, optical thin film is suppressed or is covered at substrate surface, optical thin film is formed by stacking by M unit membrane, wherein M > 2, the optical film that each unit membrane adopts polymeric material to make by N layer is formed by stacking, wherein N=2 or N=3, every layer of optical film has predetermined thickness, and the two-layer optical film of arbitrary neighborhood has different refractive indexes.
2. novel optical polymer composite film according to claim 1, it is characterized in that, M unit membrane has identical physical arrangement and optical characteristics, wherein, the optical characteristics of optical thin film comprises transmissison characteristic and reflection characteristic, light transmission characteristics comprises transmittance spectrum and printing opacity light intensity, and reflection characteristic comprises reflectance spectrum and reflective light intensity.
3. novel optical polymer composite film according to claim 1, it is characterized in that, in unit membrane, the optical film with different refractivity is made up of the polymeric material with different densities, and/or the optical film with different refractivity is made up of the polymeric material with different doping.
4. novel optical polymer composite film according to claim 2, is characterized in that, polymeric material is polythene material.
5. the novel optical polymer composite film according to any one of claim 1-4, is characterized in that, substrate is polymethylmethacrylasheet sheet material.
6. novel optical polymer composite film according to claim 5, is characterized in that, the shady face of polymethylmethacrylasheet sheet material is guide-lighting template or astigmatism template.
7. novel optical polymer composite film according to claim 5, is characterized in that, the shape of polymethylmethacrylasheet sheet material is parabolic shape.
8. the novel optical polymer composite film according to any one of claim 1-4, is characterized in that, substrate is polyethylene film.
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| CN201420787489.7U CN204241713U (en) | 2014-12-13 | 2014-12-13 | A kind of novel optical polymer composite film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459833A (en) * | 2014-12-13 | 2015-03-25 | 中国科学技术大学先进技术研究院 | Novel optical polymer composite film and manufacturing method and application thereof |
| CN112848602A (en) * | 2021-02-03 | 2021-05-28 | 畅的新材料科技（上海）有限公司 | Dual-waveband reflective polyester film |
| CN114252951A (en) * | 2016-05-27 | 2022-03-29 | 三菱化学株式会社 | Optical polyvinyl alcohol film, method for producing same, and polarizing film using same |
-
2014
- 2014-12-13 CN CN201420787489.7U patent/CN204241713U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459833A (en) * | 2014-12-13 | 2015-03-25 | 中国科学技术大学先进技术研究院 | Novel optical polymer composite film and manufacturing method and application thereof |
| CN114252951A (en) * | 2016-05-27 | 2022-03-29 | 三菱化学株式会社 | Optical polyvinyl alcohol film, method for producing same, and polarizing film using same |
| CN112848602A (en) * | 2021-02-03 | 2021-05-28 | 畅的新材料科技（上海）有限公司 | Dual-waveband reflective polyester film |
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