CN1204658A - Biomimetic agricultral film and its used rotation light system - Google Patents
Biomimetic agricultral film and its used rotation light system Download PDFInfo
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- CN1204658A CN1204658A CN98113947A CN98113947A CN1204658A CN 1204658 A CN1204658 A CN 1204658A CN 98113947 A CN98113947 A CN 98113947A CN 98113947 A CN98113947 A CN 98113947A CN 1204658 A CN1204658 A CN 1204658A
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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
An agricultural bionic film containing a light conversion system features that based on bionic characteristics, the ultraviolet ray in sunlight is converted into ultramarine light (400-500nm) and salmon light (550-700 nm) and the yellow green light in sunlight, which can not or less be used in photosynthesis, is converted into salmon light (550-700 nm), which benefits the photosynthesis. Said light conversion system is a built compound of light-converting agent and light-converting assistant in ratio of 1 : (1-0.05). Said light-converting assistant is an organic substance that plays the role of carrying, protecting, dispersing and sensitizing the light-converting agent, such as amethyst, crown ether, cellulose, or starch. Said light conversion system can increase the efficiency of agricultural film by 50% or more and hase elongated service life.
Description
The present invention relates to membrane technique, a kind of agricultural film with bionical attitude feature is provided especially, and make plastic sheeting for farm use have the commentaries on classics light system of bionical attitude feature.
General agricultural film mainly has been printing opacity and insulation effect.The required spectrum of the transmitted spectrum of plastic sheeting for farm use and crop photosynthesis effect is inconsistent will to be influenced the growth of crop and reduce the ability that crop is resisted disease and pest.In order to utilize sun power better, the corresponding appearance of a kind of novel plastic sheeting for farm use-optical transfer agricultural film.This optical transfer agricultural film can change into the most of UV-light light in the sunlight blood orange light that helps crop growth and the ultramarine light with bionical attitude feature.By large-scale agricultural experiment, find this optical transfer agricultural film to the effect of increasing production of most crop significantly better than general agricultural film.At present, the light-converting agent that relates to can be divided into two classes, and the first kind is an organism (German Patent: 3818986, Chinese patent: 1066857), as the benzoxazoles class, organic reducing dyestuff such as 3b vat red 3b, Vat green and reduction purple etc. and high-visibility pigment such as white dyes, fluorescent yellow and first first indigo plant etc.; Second class be inorganics (Chinese patent: 1122814, HOII P: 189794), as various rare earth inner complexs.But there are the following problems to use the plastic sheeting for farm use that these light-converting agents produce: 1. only ultraviolet ray is transferred to the visible light of single wave band, as blood orange light or ultramarine light, therefore do not have the feature of bionical attitude; 2. to the organism light-converting agent, oxidation and Degradation take place easily, so the life-span is shorter under action of ultraviolet ray; 3. most light-converting agent is entered in the plastic sheeting for farm use by the mode of physical mixed, and the particle of light-converting agent is bigger, and therefore assimilated efficiency and the plastic sheeting for farm use light transmission features to sunlight all has adverse influence.
The commentaries on classics light system that the objective of the invention is synthetic a kind of bionical attitude; this commentaries on classics light system can be converted into the ultraviolet ray in the sunlight to be had that chlorophyll absorbs the emmission spectrum of feature and the photosynthesis in the sunlight can not be utilized or the yellow green light of less utilization is converted into the comparatively favourable blood orange light of photosynthesis; and this commentaries on classics light system prevented uv irradiation protection; thereby effectively improved the commentaries on classics optical efficiency of plastic sheeting for farm use and change the light life-span, improved the particularly output of vegetable melon and fruit and flowers of farm crop.
The invention provides a kind of bionical attitude plastic sheeting for farm use, it is characterized in that: this bionical attitude plastic sheeting for farm use is to contain the plastic sheeting for farm use that changes the light system, it can be converted into the ultramarine light of 400～500nm and the blood orange light of 550～700nm by bionical attitude feature with UV sunlight, photosynthesis in the sunlight can not be utilized or the yellow green light of less utilization is converted into the blood orange light of 550 comparatively favourable～700nm of photosynthesis.
The present invention also provides a kind of commentaries on classics light system that makes plastic sheeting for farm use have bionical attitude feature, mainly contains light-converting agent, it is characterized in that: this commentaries on classics light system is light-converting agent and the compound that changes the light auxiliary agent; The proportioning of light-converting agent and commentaries on classics light auxiliary agent is 1～1/20; Change the light auxiliary agent for light-converting agent being had the organism of load, protection, dispersion and sensibilized, as purpurine, crown ether, Mierocrystalline cellulose, starch.
Change in the light system in the invention described above, light-converting agent is to have organism and the inorganics that changes light characteristic, and organism is some fluoresceins, and as phthalocyanine blue, 3b vat red 3b, fluorescent yellow, first first indigo plant, inorganics is the inner complex of some rare earths such as europium, terbium.
In addition, light-converting agent is preferably 1～1/10 with the proportioning of changeing the light auxiliary agent among the present invention.
The present invention provides above-mentioned bionical attitude plastic sheeting for farm use to change the preparation process of light system again, and this commentaries on classics light system is to be dissolved in both mixing then in the solvent respectively by light-converting agent and commentaries on classics light auxiliary agent, and fully reaction obtains except that desolvating again; The light-converting agent solvent is polar solvent such as toluene, chlorobenzene, pyridine, tetrahydrofuran (THF), and changeing light auxiliary agent solvent is water; Treatment temp is 10～100 ℃, and the pH value of solution scope is 3～12.
Wherein, be 10～50 ℃ with treatment temp, the pH scope is 10～12 the bests.
Commentaries on classics light system provided by the invention can make the commentaries on classics optical efficiency of the single relatively light-converting agent system of plastic sheeting for farm use improve more than 50%, and there is obvious prolongation in the life-span under the laboratory simulation condition.
Below by embodiment commentaries on classics light system provided by the invention is described further.
Example 1 changes the synthetic of light system
In the 500ml three-necked bottle, add the ethanolic soln of light-converting agent 3b vat red 3b and phthalocyanine blue and the aqueous solution of commentaries on classics light auxiliary agent starch successively, 50 ℃ of temperature of reaction, fully stirred 2 hours, decompressing and extracting water and ethanol must change the light system, and light-converting agent is 1/5 with the ratio that changes the light system.The optical transfer agricultural film of light-converting agent add-on formation is called film No. 1 routinely thus.Only light-converting agent is arranged and do not have the optical transfer agricultural film that changes the light auxiliary agent and be called film No. 2.
Can weigh the height that changes optical efficiency with the emmission spectrum peak area size of fluorescent spectrometry visible region of plastic sheeting for farm use under a certain ultraviolet exciting, judge the quality of changeing light characteristic by the emmission spectrum shape.For example longer for exciting with 370nm, the emmission spectrum of measuring No. 1 film and No. 2 films respectively obtains Fig. 1, as seen by light-converting agent provided by the present invention and the commentaries on classics optical efficiency of changeing the plastic sheeting for farm use that the cooperation of light auxiliary agent constitutes than the commentaries on classics optical efficiency height of simple system with light-converting agent, it is similar to chlorophyllous absorption spectrum as can be known by the emmission spectrum shape, thereby has good bionical attitude behavior.
Can obtain the emission spectrum in blood orange light district with No. 1 plastic sheeting for farm use of excited by visible light of 450nm～500nm, see Fig. 2.Illustrate that this optical transfer agricultural film can not utilize the photosynthesis in the sunlight or the yellow green light of less utilization is converted into the comparatively favourable blood orange light of photosynthesis.
Example 2 is changed to the inner complex of rare earth with light-converting agent in the example 1 described commentaries on classics light system, and changeing the light auxiliary agent, to be changed to Mierocrystalline cellulose synthetic under the differential responses temperature, and its plastic sheeting for farm use changes optical efficiency result of variations and sees Table 1.Wherein, S
ARepresent the red sector peak area in the film emmission spectrum No. 1, S represents the red sector peak area in the film emmission spectrum No. 2.Change the ratio S of the raising of optical efficiency with two peak areas
A/ S illustrates.
Synthetic changes the light system is changeed optical efficiency to plastic sheeting for farm use influence under table 1 differing temps
| Temperature (℃) | S A／S |
| 20 | 1．22 |
| 30 | 1．53 |
| 40 | 1．76 |
| 50 | 2．16 |
Reaction conditions:
Solvent: the tetrahydrochysene furan ticks
PH value: 7
Reaction times: 3 hours
Light-converting agent is 1/3 with changeing light auxiliary agent proportioning.
Example 3 is synthetic under different pH values with example 2 described commentaries on classics light systems, and what its commentaries on classics optical efficiency improved the results are shown in Table 2.
The different pH values of table 2 synthetic are down changeed the light system is changeed optical efficiency to plastic sheeting for farm use influence
| The pH value | 2 | 4 | 5 | 7 | 8 | 10 | 12 |
| S A／S | 2．96 | 1．05 | 1．82 | 1．53 | 3．54 | 1．67 | 1．69 |
Reaction conditions:
Solvent: tetrahydrofuran (THF)
Temperature: 30 ℃
Reaction times: 3 hours
Light-converting agent is 1/3 with changeing light auxiliary agent proportioning.
Example 4 is synthetic under different solvents with example 2 described commentaries on classics light systems, and what its commentaries on classics optical efficiency improved the results are shown in Table 3.
Table 3 changes the light system is changeed optical efficiency to plastic sheeting for farm use influence with the different solvents synthetic
| Solvent | S A／S |
| Tetrahydrofuran (THF) | 2．16 |
| The 4-picoline | 4．43 |
| Ethanol | 1．26 |
| Chlorobenzene | 1．46 |
Reaction conditions:
Temperature: 50 ℃
Reaction times: 3 hours
PH value: 7
Light-converting agent is 1/3 with changeing light auxiliary agent proportioning.
Example 5 places No. 1 film and No. 2 films that example 1 described commentaries on classics light system constitutes in the ring-like irradiation of the 125W high voltage mercury lamp chamber, accepts ultraviolet irradiation simultaneously.Measure the variation of the emmission spectrum red sector relative peak area of No. 1 film and No. 2 films respectively, see Table 4.As seen under 18 hours ultraviolet light irradiation, the commentaries on classics optical efficiency of No. 1 film has descended 14%, and No. 2 films have descended 48%.
Table 4 changes the comparison of light system uvioresistant effect
Example 6 is added with the use properties of changeing light system plastics film.(1) heat retaining property relatively sees Table 5.As seen No. 1 film heat insulation effect is better than No. 2 films.
| Light application time (h) | ??0 | ??2 | ??4 | ??6 | ??8 | ??10 | ??12 | ??14 | ??16 | ??18 |
| No. 1 film | ??1 | ??1.17 | ??1.11 | ??1.03 | ??0.97 | ??0.95 | ??0.94 | ??0.90 | ??0.82 | ??0.86 |
| No. 2 films | ??1 | ??0.78 | ??0.75 | ??0.65 | ??0.62 | ??0.60 | ??0.57 | ??0.53 | ??0.52 | ??0.52 |
Table 5 canopy film test in 1996 temperature measuring table (℃) time: in December, 96
(2) vegetables production developmental state and rate ratio see Table 6 and table 7.
| Canopy film title | No. 1 film | No. 2 films | ||
| Date | Top temperature | Minimum temperature | Top temperature | Minimum temperature |
| December 12 | ????18.5 | ????0.5 | ????16.0 | ????-1.5 |
| December 13 | ????17.5 | ????1.0 | ????14.5 | ????-1.0 |
| December 14 | ????18.0 | ????0 | ????15.0 | ????-2.5 |
| December 15 | ????19.5 | ????4.5 | ????17.0 | ????2.0 |
| December 16 | ????16.0 | ????4.5 | ????13.5 | ????1.5 |
| December 17 | ????16.5 | ????1.0 | ????13.5 | ????-2.0 |
| On average | ????17.7 | ????1.9 | ????14.9 | ????-0.58 |
The different canopy film of table 6 crowndaisy chrysanthemum production developmental state and output comparative unit: centimetre, gram, unit
| Project | Plant height | Stem is thick | Individual plant is heavy | The 667 square meter output values |
| No. 1 film | 32．4 | 0．48 | 8．1 | 5059．98 |
| No. 2 films | 29．9 | 0．48 | 7．6 | 4726．87 |
The different canopy film of table 7 muskmelon production developmental state and output comparative unit: centimetre, gram, unit
| Project | Leaf length/leaf is wide | Individual plant is heavy | The 667 square meter output values |
| No. 1 film | 23．8／25．9 | 582．7 | 9229．10 |
| No. 2 films | 22．4／24．7 | 478．3 | 7844．40 |
By above-mentioned example, utilize commentaries on classics light system provided by the invention, can constitute bionical attitude change the light characteristic behavior, higher commentaries on classics light order and the long optical transfer agricultural film that changes the light life-span arranged.Agricultural experiment result shows that the film heat retaining property of this novel optical transfer agricultural film, anti-mist and preventing disease and pest all improve to some extent, and vegetable crop is obviously increased production.
Claims (6)
1. bionical attitude plastic sheeting for farm use, it is characterized in that: this bionical attitude plastic sheeting for farm use is to contain the plastic sheeting for farm use that changes the light system, it can be converted into the ultramarine light of 400～500nm and the blood orange light of 550～700nm by bionical attitude feature with UV sunlight, photosynthesis in the sunlight can not be utilized or the yellow green light of less utilization is converted into the blood orange light of 550 comparatively favourable～700nm of photosynthesis.
2. a plastic sheeting for farm use mainly contains light-converting agent with changeing the light system, it is characterized in that: this commentaries on classics light system is light-converting agent and the compound that changes the light auxiliary agent; The proportioning of light-converting agent and commentaries on classics light auxiliary agent is 1～1/20; Change the light auxiliary agent for light-converting agent being had the organism of load, protection, dispersion and sensibilized, as purpurine, crown ether, Mierocrystalline cellulose, starch.
3. use according to the described plastic sheeting for farm use of claim 2 and change the light system, it is characterized in that: light-converting agent is to have organism and the inorganics that changes light characteristic, organism is some fluoresceins, and as phthalocyanine blue, 3b vat red 3b, fluorescent yellow, first first indigo plant, inorganics is the inner complex of some rare earths such as europium, terbium.
4. use and change the light system according to claim 2,3 described plastic sheeting for farm uses, it is characterized in that: light-converting agent is 1～1/10 with the proportioning of changeing the light auxiliary agent.
5. the described plastic sheeting for farm use of claim 2 preparation of changeing the light system is characterized in that: this commentaries on classics light system is to be dissolved in both mixing then in the solvent respectively by light-converting agent and commentaries on classics light auxiliary agent, and abundant reaction obtains except that desolvating again; The light-converting agent solvent is polar solvent such as toluene, chlorobenzene, pyridine, tetrahydrofuran (THF), and changeing light auxiliary agent solvent is water; Treatment temp is 10～100 ℃, and the pH value of solution scope is 3～12.
6. according to the preparation of the described plastic sheeting for farm use of claim 5 with commentaries on classics light system, it is characterized in that: treatment temp is 10～50 ℃, and the pH scope is 10～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113947A CN1074005C (en) | 1998-04-29 | 1998-04-29 | Biomimetic agricultral film and its used rotation light system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98113947A CN1074005C (en) | 1998-04-29 | 1998-04-29 | Biomimetic agricultral film and its used rotation light system |
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| Publication Number | Publication Date |
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| CN1204658A true CN1204658A (en) | 1999-01-13 |
| CN1074005C CN1074005C (en) | 2001-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN98113947A Expired - Fee Related CN1074005C (en) | 1998-04-29 | 1998-04-29 | Biomimetic agricultral film and its used rotation light system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321323C (en) * | 2002-11-15 | 2007-06-13 | 北京华盾雪花塑料集团有限责任公司 | Light conversion performance test and expressing method for farm light converting film |
| CN100429267C (en) * | 2006-05-16 | 2008-10-29 | 林敬文 | Highly effective light-modulating agent and its uses in greenhouse cultivation |
| CN101434724B (en) * | 2008-12-12 | 2011-06-29 | 山东师范大学 | Blue light conversion agricultural film for plating green cucumber and technique for producing the same |
| CN106718422A (en) * | 2017-01-10 | 2017-05-31 | 厦门大学 | A kind of preparation method of degradable multifunctional fibre element agricultural film |
| CN109796661A (en) * | 2019-01-24 | 2019-05-24 | 淄博舜明荧光科技有限公司 | Agricultural fluorescent conversion film and preparation method thereof |
| CN110643100A (en) * | 2019-10-18 | 2020-01-03 | 河南省银丰塑料有限公司 | Special green mulching film for peanuts and preparation method thereof |
| CN110903767A (en) * | 2019-11-08 | 2020-03-24 | 华南农业大学 | Ultraviolet curing adhesive with light conversion function and preparation method thereof |
| CN111133937A (en) * | 2018-11-05 | 2020-05-12 | 浙江省农业科学院 | Cultivation method for improving flavone and polyphenol content of waxberry fruits by using colored greenhouse film |
| CN111972182A (en) * | 2020-09-01 | 2020-11-24 | 中国农业科学院蔬菜花卉研究所 | Application of double-light-conversion film on facility tomatoes |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985001945A1 (en) * | 1983-10-31 | 1985-05-09 | Institut Obschei I Neorganicheskoi Khimii Imeni N. | Polymer material for coating hot greenhouses |
| CN1066857A (en) * | 1991-05-15 | 1992-12-09 | 孟继武 | Highly optic efficient agricultural fluorescent plastic film |
| KR0171639B1 (en) * | 1994-11-22 | 1999-03-30 | 박원배 | Agricultural luminiscent film |
-
1998
- 1998-04-29 CN CN98113947A patent/CN1074005C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321323C (en) * | 2002-11-15 | 2007-06-13 | 北京华盾雪花塑料集团有限责任公司 | Light conversion performance test and expressing method for farm light converting film |
| CN100429267C (en) * | 2006-05-16 | 2008-10-29 | 林敬文 | Highly effective light-modulating agent and its uses in greenhouse cultivation |
| CN101434724B (en) * | 2008-12-12 | 2011-06-29 | 山东师范大学 | Blue light conversion agricultural film for plating green cucumber and technique for producing the same |
| CN106718422A (en) * | 2017-01-10 | 2017-05-31 | 厦门大学 | A kind of preparation method of degradable multifunctional fibre element agricultural film |
| CN111133937A (en) * | 2018-11-05 | 2020-05-12 | 浙江省农业科学院 | Cultivation method for improving flavone and polyphenol content of waxberry fruits by using colored greenhouse film |
| CN111133937B (en) * | 2018-11-05 | 2022-03-25 | 浙江省农业科学院 | Cultivation method for improving flavone and polyphenol content of waxberry fruits by using colored greenhouse film |
| CN109796661A (en) * | 2019-01-24 | 2019-05-24 | 淄博舜明荧光科技有限公司 | Agricultural fluorescent conversion film and preparation method thereof |
| CN110643100A (en) * | 2019-10-18 | 2020-01-03 | 河南省银丰塑料有限公司 | Special green mulching film for peanuts and preparation method thereof |
| CN110903767A (en) * | 2019-11-08 | 2020-03-24 | 华南农业大学 | Ultraviolet curing adhesive with light conversion function and preparation method thereof |
| CN110903767B (en) * | 2019-11-08 | 2021-09-10 | 华南农业大学 | Ultraviolet curing adhesive with light conversion function and preparation method thereof |
| CN111972182A (en) * | 2020-09-01 | 2020-11-24 | 中国农业科学院蔬菜花卉研究所 | Application of double-light-conversion film on facility tomatoes |
| CN111972182B (en) * | 2020-09-01 | 2022-05-17 | 中国农业科学院蔬菜花卉研究所 | Application of double-light-conversion film on facility tomatoes |
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| CN1074005C (en) | 2001-10-31 |
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