CN1052493C - Light converting film - Google Patents
Light converting film Download PDFInfo
- Publication number
- CN1052493C CN1052493C CN94114161A CN94114161A CN1052493C CN 1052493 C CN1052493 C CN 1052493C CN 94114161 A CN94114161 A CN 94114161A CN 94114161 A CN94114161 A CN 94114161A CN 1052493 C CN1052493 C CN 1052493C
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- Prior art keywords
- weight part
- light
- film
- conversion film
- light conversion
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Classifications
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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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- Compositions Of Macromolecular Compounds (AREA)
- Protection Of Plants (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Greenhouses (AREA)
Abstract
The present invention relates to the improvement of a film of an agricultural high molecular material, particularly to an agricultural light converting film. The film is prepared in a mode that high molecular compounds, such as polyethylene, etc., a chelate complex of europium and terbium of rare-earth elements as a light converting additive, concentrated mother grains of the light converting additive and other antiagers and antifog-drop agent strictly selected as auxiliary agents are mixed in order to prepare a new product of the multifunctional agricultural light converting film. A light converting greenhouse film and a mulching film manufactured by the technological process for manufacturing a light converting film are capable of converting ultraviolet light in sunlight to orange red light and have the performance of aging resistance and fog-drop resistance, wherein the technological process is disclosed by the present invention; the film takes favorable effect on planting experiments.
Description
The invention relates to a kind of agricultural macromolecule membrane, more particularly about a kind of light conversion film and manufacture method thereof.
Along with in the society to the continuous understanding of agricultural science and technology, the application of macromolecule membrane in agricultural also obtains big area and promotes, but agriculture at present most of macromolecule membrane of going up use is unifunctional, only play insulation effect, macromolecule membrane has experienced many-sided progress, but also do not have a kind of plastic sheeting for farm use can change illumination condition, press on the agricultural and have polyfunctional film.
The former Russian scholar discloses in HOII P NO:189794 uses multiple rare earth inner complex as additive making greenhouse covering macromolecular material (film), and this macromolecule membrane agriculturally application has been obtained good result.The feature of examples of such additives be wherein contain a kind of can absorb in the daylight the ultraviolet ray and make its f element luminous in orange red district, f element additive compound molecule formula is:
M
N+X
mY
N-mL
kM wherein
eFor: Eu, Sm, Tb, Dy and UO
2
X, Y is: Cl, NO
3COO
-With the diketone negatively charged ion;
L is: R
3PO, (RO)
3PO, R
2SO, (R is an alkyl or aryl);
2DP (
, 2, the 2-dipyridyl),
Phen (
, 1, the 10-phenanthroline),
VBI (
, 1-vinyl benzyl imidazoles; ),
n＝3，2；m＝0，1；k＝0，1，2，3；
Adopting polyethylene, polyvinyl chloride, polypropylene, polystyrene, polycarbonate, polymethylmethacrylate, polymethyl acrylate and one of vinylbenzene and methylmethacrylate copolymer etc. is macromolecular material, add above-mentioned different about 0.001～5% weight ratio of forming of additive, listed 172 routine light conversion film constituents, additive comprises EuCl
3.3TOPhO, Eu[NO
3]
33TBPh, Eu[NO
3]
3PhEN etc.Cover chamber planting plant and general thin contrast with the film that contains these materials: in the unit greenhouse, the harvest of cucumber, tomato and cabbage improves 15～17%, 20～30% and 92～96% respectively.
Yet these have the macromolecule membrane that changes photosensitiveness after adding additive in the HOII P, though can absorb the ultraviolet ray in the daylight and can convert thereof into orange red light, but do not have other functions, as: enough light fastness agings and anti-droplet etc., therefore work-ing life is extremely short in actual use, promptly breaks in more than 20 day, owing to can not prevent droplet, influenced the film light transmission, and water droplet easily causes the disease of plant, therefore hindered the raising of changeing optical property.
At present commercially available anti-aging, the existing many kinds of anti-droplet agricultural film, normally used protective agent has: the UV326 of benzotriazole category, UV327; The light of organic nickel chromium triangle class is steady 2002, light steady 1804; The UV9 of benzophenone, UV-24, UV531 etc.But these protective agents can not be used in light conversion film, and this is because contain the commentaries on classics optical property that the auxiliary agent of iron, nickel, titanium and other metallic compounds can influence changes the light additive.Simultaneously, the dissimilar antifogging agents that contain tensio-active agent neither all can be applicable in the light conversion film, and the auxiliary agent of especially two anti-types is often influential to changeing optical property.Up to the present, commercially available anti-aging, anti-droplet agricultural film all can not change light, and light conversion film does not have good commentaries on classics photosensitiveness and anti-aging and/or anti-droplet.
One of purpose of the present invention provides a kind of light conversion film with good commentaries on classics photosensitiveness and anti-aging and/or anti-droplet.This film satisfies following the requirement simultaneously:
(1) transparent in the spectrum visible-range;
(2) can absorb ultraviolet ray in the daylight;
(3) have good heat retaining property, improve the transmittance of red light district;
(4) do not contain and do not decomposite toxicant.
Two of purpose of the present invention provides a kind of manufacture method with light conversion film of good commentaries on classics photosensitiveness and anti-aging and/or anti-droplet.
The present invention is through carrying out the strictness screening to dissimilar protective agents and antifogging agent, determined the prescription of following light conversion film: selected a kind of light conversion film, it contains macromolecular compound and at least a following commentaries on classics light additives such as polyethylene, and its molecular formula general formula is:
M
e N+X
mY
N-mL
kWherein,
M
eFor: Eu (europium), Tb (terbium);
X, Y is: Cl
-, NO
3COO
-With the diketone negatively charged ion;
L is: 2DP, Phen, VBI;
n＝2，3；m＝1，1；k＝0，1，2，3；
Except above-mentioned commentaries on classics light additive M
N+X
mY
N-mL
kOutside macromolecular compound such as polyethylene mixes, also add the indispensable auxiliary agent of protective agent and/or antifogging agent and just can make this light conversion film reach the object of the invention.
Light conversion film of the present invention contains polyethylene and at least a following commentaries on classics light additive, and its molecular formula general formula is:
M
e N+X
mY
N-mL
kWherein,
M
eFor: Eu, Tb;
X, Y is: CL
-, NO
3, COO
-And diketone negatively charged ion;
L is: 2-2-dipyridyl, 1,10-phenanthroline, 1-vinyl benzyl imidazoles;
n＝2，3；m＝0，1；K＝0，1，2，3；
Also contain in 100 weight account polyethylenes 0.1～1.0 weight part hindered amines protective agent and/or 0.5～1.0 weight part polyol esters of fatty acids class antifogging agent.
Further, light conversion film of the present invention contains macromolecular compound and at least a following commentaries on classics light additives such as polyethylene, and its molecular formula general formula is:
M
e N+X
mY
N-mL
kWherein:
M
eFor: Eu, Tb;
X, Y is: CL
-, NO
3, COO
-And diketone negatively charged ion;
L is: 2-2-dipyridyl, 1,10-phenanthroline, 1-vinyl benzyl imidazoles;
n＝2，3；m＝0，1；K＝0，1，2，3；
Also contain protective agent and/or antifogging agent, each components by weight is:
Macromolecular compounds such as polyethylene: 100 parts,
Change light additive M
e N+X
mY
N-mL
k: 0.01～5.0 part,
The hindered amines protective agent: 0.1～1.0 part,
And/or polyol esters of fatty acids class antifogging agent: 0.5～1.0 part.
The selected hindered amines protective agent of this film mainly is meant: trade names: 944 (Switzerland: Qi Bajiaji company produces), and chemical name: poly-" " 6-" (1,1; 3, the 3-tetramethyl butyl) amino]-1,3; 5-three azines-2,4-two bases] " (2,2,6,6-tetramethyl--4 piperidyl) amino]-1,6-two hexyls " (2,2; 6,6-tetramethyl--4 piperidyl) amino]]; Or 540 (" additives for plastics handbook Beijing light industry press in 1984 publishes), chemical name: three " 1,2,2,6,6-pentamethyl-4-piperidyl] phosphorous acid ester or GFW-2 (chemical plant, Zhangjiakou product), belong to the polymer hindered amine as light stabilizer.
The selected polyol esters of fatty acids class antifogging agent of this film mainly is meant: FY-2, or FY-22 (Beijing Chemical Research Institute's product), and these two kinds of antifogging agents are by polyol ester, polyoxyethylene compound and aminated compounds are composite to form.
In the present invention, macromolecular compound such as described polyethylene can be a high-pressure polyethylene.
Light conversion film of the present invention is produced as follows, and may further comprise the steps:
(1) preparation of commentaries on classics light additive master batch: get 100 weight part high-pressure polyethylene powder or pellets, adding 0.5～5.0 weight part changes light additive M
e N+X
mY
N-mL
k, through 2000 rev/mins homogenizer, stir 3～5 minutes after evenly, to deliver to and be heated under 150～200 ℃, extruder grain is standby;
(2) get 100 weight part high-pressure polyethylene pellets, adding 0.1～1.0 weight part changes light additive master batch, adds 0.1～1.0 weight part protective agent simultaneously, and the light conversion film that obtains having anti-aging is blown with common filming technology equipment in the back that stirs.
Light conversion film of the present invention also can be produced as follows, and may further comprise the steps:
(1) preparation of commentaries on classics light additive master batch: get 100 weight part high-pressure polyethylene pellets, adding 0.5～5.0 weight part changes light additive M
e N+X
mY
N-mL
k, through 2000 rev/mins homogenizer, stir 3～5 minutes after evenly, under 150～200 ℃, extruder grain is standby;
(2) get 100 weight part high-pressure polyethylene pellets, adding 0.1～1.0 weight part changes light additive master batch, adds 0.5～1.0 weight part antifogging agent simultaneously, and the light conversion film that obtains having anti-droplet is blown with common filming technology equipment in the back that stirs.
Light conversion film of the present invention also can be produced as follows, and may further comprise the steps:
(1) gets 100 weight part high-pressure polyethylene pellets, adding 0.5～5.0 weight part changes the light additive, through 2000 rev/mins homogenizer, stirs 3～5 minutes after even, deliver to and be heated under 150～200 ℃, obtain containing the high-pressure polyethylene master batch that changes the light additive;
(2) the blowing anti-aging is held concurrently and is prevented the light conversion film of droplet: get 100 weight part high-pressure polyethylene pellets, add 0.1～1.0 weight part and change light additive master batch, add 0.1～1.0 weight part protective agent and 0.5～1.0 weight part antifogging agent simultaneously, with common filming technology equipment, blowing obtains having the light conversion film of anti-aging and anti-droplet.
This film also can be made into the light conversion film of three-decker.The protective agent that in 100 weight account polyethylene pellets, adds 0.2～0.5 weight part respectively, the commentaries on classics light additive master batch of 0.15～0.5 weight part, the antifogging agent of 0.8～1.0 weight part or contain the anti-master batch of list of antifogging agent divides three layers of blowing and makes.The section structure of this trilamellar membrane is: outer mask anti-aging on the sunny side, and the middle layer tool changes photosensitiveness, and the internal layer tool is prevented droplet.
Below further specify the present invention by specific embodiment, embodiment only is used for explanation, can not limit the scope of the invention, and in the present invention, does not refer in particular to if having, all per-cents all are weight percentage.
Embodiment 1-12 such as table 1 are listed, and the prescription of the commentaries on classics light additive master batch that is adopted is: change light additive 0.2Kg and high-pressure polyethylene 10Kg and stir, under 180 ℃, extruder grain forms.
Table 1: anti-aging and/or anti-droplet light conversion film prescription
The hindered amines protective agent that the present invention is selected all has the piperidines group of replacement in its structural formula, be the long-acting photo-oxidant stabilizer of a class new free-radical trap-type, and it disturbs less to the commentaries on classics photosensitiveness that changes the light additive.
The FY type antifogging agent that the present invention is selected, because employing is single antifogging agent, it disturbs also less to the commentaries on classics photosensitiveness that changes the light additive.
So light conversion film of the present invention, in the experiment of farmland, its transmittance is higher, and changeing light effect might as well.The method for quick of above-mentioned various light conversion films is with general ultra-violet lamp (250～390nm wavelength) irradiation, and promptly visible film sends bright ruddiness.
Use the various embodiments described above prescription of the present invention respectively, on common blow moulding machine, be blow molded into the canopy film of 0.10～0.12mm and the mulch film of 0.008～0.014mm, respectively kilogram surplus in the of 100.The booth light-converting film that No. 6, No. 9, No. 11, No. 12 prescriptions of the foregoing description prescription are made is used for agricultural experiment Tanaka, especially in growing vegetables, can make 3～15 days in advance crop ripening stage, winter temperature of shed owing to the increase of ruddiness has raise 2～5 ℃, prevented the freeze injury of crop.And in summer, absorption, conversion owing to intensive ultraviolet make temperature of shed suitably reduce again.In following experimental data, the superiority of this light conversion film as can be seen:
(1) compare with glass or general thin, this light conversion film is used for booth, and the volume increase situation of vegetables is as follows:
Tomato 50～90%, cucumber 15～50%,
Sieve foretells 20～25%, capsicum 15～20%,
Asparagus lettuce 15～20%, pumpkin 10～15%,
Cabbage is in this light conversion film booth, and than in the general thin booth, the weighted average of single dish head increases by 74%, and the dish leaf area on average increases by 75%.
(2) compare with the general thin booth, the round paste-on-paste pate-surpate preface section flower growth situation in this light conversion film booth is as follows: see Table 2:
Table 2
Under the condition of this light conversion film, taking root of the cutting of all xylophytas all is better than general thin greatly, sees the following form 3:
The simultaneous test of the various flower growths of table 3
| Floristics | Simultaneous test | Rooting rate % | The radical amount | The long mm of root | Root system diameter mm |
| Flower of Arabian Jasmine | The normal film light-converting film | 100 100 | 16.1 15.3 | 52.7 60.5 | 37.7 45.1 |
| Flower of Japanese Kerria | The normal film light-converting film | 100 100 | 14.7 17.2 | 86.6 96.7 | 38.7 50.7 |
| Radix Hyperici Monogyni (Herba Hyperici Monogyni) | The normal film light-converting film | 93 100 | 26.7 21.9 | 82.2 70.1 | 28.6 30.7 |
| The America gooseberry | The normal film light-converting film | 100 100 | 13.3 15.0 | 83.7 100.8 | 38.5 42.5 |
| Twig of Germany Falsetamarisk | The normal film light-converting film | 93 100 | 5.8 9.5 | 38.5 51.7 | 28.0 28.3 |
In addition, this light conversion film also has fairly obvious characteristics, in its booth, ultraviolet ray in the natural light is blocked, convert blood orange light to, owing to reduce the following UV-light of 380nm, so can suppress the fertility of pathogenic bacterias such as gray mold, sclerotium disease, make insect pests such as aphid, acarid lose light sensation, thereby reduce generation and the harm of these sick worms.
Claims (8)
1, a kind of light conversion film contains polyethylene and at least a following commentaries on classics light additive, and its molecular formula general formula is:
M
e N+X
mY
N-mL
kWherein,
M
eFor: Eu, Tb;
X, Y is: CL
-, NO
3 -, COO
-And diketone negatively charged ion;
L is: 2-2-dipyridyl, 1,10-phenanthroline, 1-vinyl benzyl imidazoles;
n＝2，3；m＝0，1；K＝0，1，2，3；
It is characterized in that also containing in 100 weight account polyethylenes 0.1～1.0 weight part hindered amines protective agent and/or 0.5～1.0 weight part polyol esters of fatty acids class antifogging agent.
2, light conversion film as claimed in claim 1 contains polyethylene and at least a following commentaries on classics light additive, and its molecular formula general formula is:
M
e N+X
mY
N-mL
kWherein,
M
eFor: Eu, Tb;
X, Y is: CL
-, NO
3 -, COO
-And diketone negatively charged ion;
L is: 2-2-dipyridyl, 1,10-phenanthroline, 1-vinyl benzyl imidazoles;
n＝2，3；m＝0，1；K＝0，1，2，3；
It is characterized in that also containing protective agent and/or antifogging agent, each components by weight is:
100 parts of polyethylene,
Change light additive M
e N+X
mY
N-mL
k: 0.01～5.0 part,
The hindered amines protective agent: 0.1～1.0 part,
And/or polyol esters of fatty acids class antifogging agent: 0.5～1.0 part.
3, light conversion film as claimed in claim 1 is characterized in that described polyethylene can be a high-pressure polyethylene.
4, the manufacture method of light conversion film as claimed in claim 3 is characterized in that comprising the steps:
(1) preparation of commentaries on classics light additive master batch: get 100 weight part high-pressure polyethylene powder or pellets, adding 0.5～5.0 weight part changes light additive M
e N+X
mY
N-mL
k, through 2000 rev/mins homogenizer, stir 3～5 minutes after evenly, to deliver to and be heated under 150～200 ℃, extruder grain is standby;
(2) get 100 weight part high-pressure polyethylene pellets, adding 0.1～1.0 weight part changes light additive master batch, adds 0.1～1.0 weight part protective agent simultaneously, and the light conversion film that obtains having anti-aging is blown with common filming technology equipment in the back that stirs.
5, the manufacture method of light conversion film as claimed in claim 2 is characterized in that comprising the steps:
(1) preparation of commentaries on classics light additive master batch: get 100 weight part high-pressure polyethylene pellets, adding 0.5～5.0 weight part changes light additive M
e N+X
mY
N-mL
k, through 2000 rev/mins homogenizer, stir 3～5 minutes after evenly, under 150～200 ℃, extruder grain is standby;
(2) get 100 weight part high-pressure polyethylene pellets, adding 0.1～1.0 weight part changes light additive master batch, adds 0.5～1.0 weight part antifogging agent simultaneously, and the light conversion film that obtains having anti-droplet is blown with common filming technology equipment in the back that stirs.
6, the manufacture method of light conversion film as claimed in claim 3 is characterized in that comprising the steps:
(1) preparation of commentaries on classics light additive master batch: get 100 weight part high-pressure polyethylene pellets, adding 0.5～5.0 weight part changes light additive M
e N+X
mY
N-mL
k, through 2000 rev/mins homogenizer, stir 3～5 minutes after evenly, under 150～200 ℃, extruder grain is standby;
(2) get 100 weight part high-pressure polyethylene pellets, add 0.1～1.0 weight part and change light additive master batch, add 0.1～1.0 weight part protective agent and 0.5～1.0 weight part antifogging agent simultaneously, with common filming technology equipment, blowing obtains having the light conversion film of anti-aging and anti-droplet.
7, as the manufacture method of claim 1,2 or 3 described light conversion films, it is characterized in that in 100 weight account polyethylene pellets, adding respectively the protective agent of 0.2～0.5 weight part, 0.15 the commentaries on classics light additive master batch of～0.5 weight part, 0.8 the antifogging agent of～1.0 weight parts, divide three layers of blowing, the section structure of this trilamellar membrane is: outer mask anti-aging on the sunny side, and the middle layer tool changes photosensitiveness, and the internal layer tool is prevented droplet.
8, as the manufacture method of claim 1,2 or 3 described light conversion films, it is characterized in that in 100 weight account polyethylene pellets, adding respectively the protective agent of 0.2～0.5 weight part, 0.15 the commentaries on classics light additive master batch of～0.5 weight part, 0.8 the list that contains antifogging agent of～1.0 weight parts is prevented master batch, divide three layers of blowing, the section structure of this trilamellar membrane is: outer mask anti-aging on the sunny side, and the middle layer tool changes photosensitiveness, and the internal layer tool is prevented droplet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94114161A CN1052493C (en) | 1994-11-07 | 1994-11-07 | Light converting film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94114161A CN1052493C (en) | 1994-11-07 | 1994-11-07 | Light converting film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1122814A CN1122814A (en) | 1996-05-22 |
| CN1052493C true CN1052493C (en) | 2000-05-17 |
Family
ID=5037078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94114161A Expired - Fee Related CN1052493C (en) | 1994-11-07 | 1994-11-07 | Light converting film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1052493C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079407C (en) * | 1997-12-15 | 2002-02-20 | 中国科学院电子学研究所 | Optical conversion agent for agricultural film and its manufacturing method |
| CN100447183C (en) * | 2006-04-25 | 2008-12-31 | 罗维鸿 | Day/night light conversion agricultural film and preparation method thereof |
| CN101857690A (en) * | 2010-05-19 | 2010-10-13 | 淮滨县创佳科技开发有限公司 | Rare-earth organic complex light conversion film with ultraviolet light-to-red light performance and preparation process thereof |
| CN102634102A (en) * | 2012-04-26 | 2012-08-15 | 界首市天鸿包装材料有限公司 | Preparation method of multifunctional light-conversion thin film added with rare earth |
| CN105623141A (en) * | 2015-06-11 | 2016-06-01 | 侯培毅 | Multifunctional agricultural light conversion net |
| CN109181059A (en) * | 2018-08-03 | 2019-01-11 | 东莞市济丰农业生态园开发有限公司 | It is a kind of to increase awning film of crop yield and preparation method thereof |
| CN110607015B (en) * | 2019-08-31 | 2021-11-05 | 山东隆昌塑业有限公司 | Plastic light conversion agricultural film with lasting light conversion effect and preparation method thereof |
| CN111944221B (en) * | 2020-07-31 | 2022-05-27 | 中国农业科学院农业环境与可持续发展研究所 | Low-waveband ultraviolet absorption antibacterial light conversion film and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2158833A (en) * | 1983-10-31 | 1985-11-20 | Inst Obschei I Neoorganichesko | Polymer material for coating hot greenhouses |
| CN1035310A (en) * | 1988-02-23 | 1989-09-06 | 石家庄市东风塑料厂 | Anti-aging and dropless agricultural film |
-
1994
- 1994-11-07 CN CN94114161A patent/CN1052493C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2158833A (en) * | 1983-10-31 | 1985-11-20 | Inst Obschei I Neoorganichesko | Polymer material for coating hot greenhouses |
| CN1035310A (en) * | 1988-02-23 | 1989-09-06 | 石家庄市东风塑料厂 | Anti-aging and dropless agricultural film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1122814A (en) | 1996-05-22 |
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