CN102964669B - Production method of agricultural land surface covered weeding degradable mulching film - Google Patents
Production method of agricultural land surface covered weeding degradable mulching film Download PDFInfo
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- CN102964669B CN102964669B CN201210463398.3A CN201210463398A CN102964669B CN 102964669 B CN102964669 B CN 102964669B CN 201210463398 A CN201210463398 A CN 201210463398A CN 102964669 B CN102964669 B CN 102964669B
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Abstract
The invention provides a production method of an agricultural land surface covered weeding degradable mulching film. The film is prepared from the raw materials including 95-99% of linear low-density polyethylene LLDPE7042, a compound degradable catalyst, 0.01-1% of an ultraviolet ray adsorbent, 0.45-2% of a powdery herbicide and 0.45-1.5% of emulsified oil herbicide. The production method comprises the following steps of: sufficiently mixing the emulsified oil herbicide into the linear low-density polyethylene LLDPE7042; then adding the compound degradable catalyst, the ultraviolet ray adsorbent and the powdery herbicide; and blowing a sufficiently-mixed mixture by a film blowing machine into the film, wherein the physical performance and the use function of the film accord with the national standard GB13735-92. The degrading time of the mulching film is 90-120 days and the effective weeding time is about 90 days; a weeding range comprises annual dicotyledonous plants and monocotyledon plants; and the film is tightly stuck on the ground to cover and does not have positive and negative faces, and the film is recommended to be used on crops such as corns, tobaccos, cottons, sugarcanes and vegetables.
Description
Technical field
The present invention relates to polymeric material field and agricultural pest Prevention Technique field, be specifically related to the synthetic of degradable chemical method weed removal mulch film, is the production method that a kind of agricultural earth's surface covers degradative plastic film.
Background technology
In the situation that China rural laborer is increasingly in short supply, the mode of agriculture of tradition intensive cultivation will be difficult to for continuous.The disposable agrotechnique that mechanization of agriculture, minimizing labor force drop into will be the new trend of modern agricultural development.And the degradative plastic film with weeding function will to be one can ensure crop yield and quality, can reduce again the disposable abridged edition new agricultural technology that labor force drops into.
Degradative plastic film has had a large amount of research reports, but the degradative plastic film of research mainly contains 3 kinds at present: photodegradation film, Biodegradable mulch, photoproduction degradative plastic film.Wherein photodegradation film cost is lower, but degradation time is difficult to control; Biodegradable mulch cost is the more than 2 times of normal film price.Comprehensive analysis low cost, the controllable degradative plastic film of degrading will be conducive to Industry Promotion application.
Weed removal mulch film production method mainly contains 2 kinds, and a kind of method will spread upon mulch film surface after weedicide adding assistant, and rolling packaging after drying covers soil table by the one side that has weedicide and uses, but smear, weedicide is time-consuming takes a lot of work.Another kind of method side directly adds weedicide (pulvis, missible oil or compound herbicide) in polyvinyl resin, utilize inflation film manufacturing machine once shaped, cover while use regardless of pros and cons, if but medicament selection is improper, after weedicide heating, herbicidal effect is not good, needs all good weed removal mulch films of effect easy to produce and use in production.
Summary of the invention
For the deficiency of above-mentioned existence, the present invention proposes a kind of production method of agricultural earth's surface covering degradative plastic film.For a kind of weed removal mulch film with degradation function, degradation time can be controlled, cost is easy to accept, and herbicidal effect is good, not to doing deposits yields poisoning.
The present invention is achieved through the following technical solutions:
A kind of agricultural earth's surface covers weeding degradable mulch film production method, is made up: 95-99% linear low density polyethylene LLDPE 7042 of the raw material of following mass percent example;
The composite degradation catalyzer that 0.05-0.25% cerium stearate and 0.05-0.25% manganese stearate form; Degradation catalyst is chosen under the catalysis of light, heat can continue cerium stearate and the manganese stearate that generation is degraded after lucifuge;
0.01%-1% UV light absorber; 0.45-2% pulvis weedicide;
0.45-1.5% emulsifiable solution herbicide;
Adopt mixer that missible oil weeding is fully mixed in linear low density polyethylene LLDPE7042, add afterwards composite degradation catalyzer, UV light absorber and pulvis weedicide, allow all raw materials fully be mixed to get mixture; The mixture fully mixing is blow molded into film in Heating temperature under lower than the condition of 175 DEG C with inflation film manufacturing machine, is blow molded in membrane process, controlling inflation film manufacturing machine Yi district temperature is 155 DEG C, and two district's temperature are 160 DEG C, and three district's temperature are 170 DEG C, and head temperature is 165 DEG C; The thickness of film is 0.008-0.02mm, width 300-8000mm, and the physicals of film and use function meet the agricultural ground of standard GB/T 13735-92 blow moulded polyethyene coating film.
As preferred version of the present invention:
Described mixer is screw mixer; Inflation film manufacturing machine model is selected Shandong hat SJ-65 inflation film manufacturing machine.
Described UV light absorber is a kind of photostabilizer, can absorb the ultraviolet part in sunlight and fluorescence light source, and itself does not change.Select at least one in UV light absorber UV 9, UV light absorber U-V531, UV light absorber U-VP, UV light absorber U-V320, UV light absorber U-V324, UV light absorber U-V326, UV light absorber U-V327, UV light absorber U-V328, UV light absorber UV329 or UV light absorber U-V360.
Described pulvis weedicide be decomposition temperature higher than in the Diuron Tech of 175 DEG C or the former medicine powder of G-30027 at least one.
Described emulsifiable solution herbicide is at least one in acetochlor ec, metolachlor missible oil, 2,2 dichloropropionic acid or methyl esters nitrofen.
The raw material that the present invention produces, in mixing, should first mix emulsifiable solution herbicide and polyethylene, thereby ensures that various adding materials mixed uniformly subsequently; Another principal feature of Degradation is for preventing that high-intensity ultraviolet from causing the too fast degraded of mulch film, added anti UV agent.
Adopt this agricultural earth's surface that the present invention produces to cover weeding degradable mulch film, degradation time 90-120 days, about 90 days working lipe of weeding, weeds scope comprises annual dicotyledonous and monocotyledons.This film close proximity to ground covers and uses, and regardless of pros and cons, is recommended on the cash crop such as corn, tobacco, cotton, sugarcane, vegetables and uses.
Embodiment
Protection scope of the present invention is not limited to following examples, and apparent conversion or replacement all belong to protection scope of the present invention to one skilled in the art; Every raw material all adopts mass percent example.
Embodiment mono-
Utilize screw mixer that acetochlor ec 0.6% is fully blended in 98% polyethylene LLDPE 7042, add afterwards 0.1% cerium stearate, 0.2% manganese stearate, 0.1% UV light absorber UV531 and the former medicine powder of 1% G-30027, all raw materials are fully mixed and mixed, utilize Shandong hat SJ-65 inflation film manufacturing machine to be blow molded into film in Heating temperature under lower than the condition of 175 DEG C, wherein will heat 155 DEG C of district's temperature modulation, two 160 DEG C of district's temperature, three 170 DEG C, districts, 165 DEG C of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the use agricultural ground of the compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film is preserved 5 months under dark low temperature.
Embodiment bis-
Utilize screw mixer that metolachlor 0.8% is fully blended in 97.8% polyethylene LLDPE 7042, add afterwards 0.1% cerium stearate, 0.1% manganese stearate, 0.2% UV light absorber UV 9, the former medicine powder of 0.6% G-30027,0.4% Diuron Tech, allow all raw materials fully mix, utilize Shandong hat SJ-65 inflation film manufacturing machine to be blow molded into film in Heating temperature under lower than the condition of 175 DEG C, wherein will heat 155 DEG C of district's temperature modulation, two 160 DEG C of district's temperature, three 170 DEG C, districts, 165 DEG C of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the use agricultural ground of the compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film is preserved 5 months under dark low temperature.
Embodiment tri-
Utilize screw mixer that metolachlor 0.4%, acetochlor 0.4% are fully blended in 97.6% polyethylene LLDPE 7042, add afterwards cerium stearate 0.2%, the UV light absorber UV326 of manganese stearate 0.1%, 0.3%, G-30027 pulvis 1%, allow all raw materials fully mix, utilize Shandong hat SJ-65 inflation film manufacturing machine to be blow molded into film in Heating temperature under lower than the condition of 175 DEG C, wherein will heat 155 DEG C of district's temperature modulation, two 160 DEG C of district's temperature, three 170 DEG C, districts, 165 DEG C of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the use agricultural ground of the compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film is preserved 5 months under dark low temperature.
Embodiment tetra-
Utilize screw mixer by acetochlor 0.2%, 2,2-Tripon 0.4% is fully blended in 98% polyethylene LLDPE 7042, add afterwards 0.1% cerium stearate, 0.2% manganese stearate, 0.1% UV light absorber U-VP, the former medicine powder of 0.6% G-30027,0.4% Diuron Tech, all raw materials are fully mixed and mixed, utilize Shandong hat SJ-65 inflation film manufacturing machine to be blow molded into film in Heating temperature under lower than the condition of 175 DEG C, wherein will heat 155 DEG C of district's temperature modulation, two 160 DEG C of district's temperature, three 170 DEG C, districts, 165 DEG C of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the use agricultural ground of the compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film is preserved 5 months under dark low temperature.
Embodiment five
Utilize screw mixer that metolachlor 0.4%, methyl esters nitrofen 0.4% are fully blended in 98.2% polyethylene LLDPE 7042, add afterwards 0.15% cerium stearate, 0.15% manganese stearate, 0.3% UV light absorber UV326,0.4% Diuron Tech, allow all raw materials fully mix, utilize Shandong hat SJ-65 inflation film manufacturing machine to be blow molded into film in Heating temperature under lower than the condition of 175 DEG C, wherein will heat 155 DEG C of district's temperature modulation, two 160 DEG C of district's temperature, three 170 DEG C, districts, 165 DEG C of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the use agricultural ground of the compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film is preserved 5 months under dark low temperature.
Claims (6)
1. agricultural earth's surface covers a weeding degradable mulch film production method, it is characterized in that being made up of the raw material of following mass percent example:
95-99% linear low density polyethylene LLDPE 7042;
The composite degradation catalyzer that 0.05-0.25% cerium stearate and 0.05-0.25% manganese stearate form;
0.01%-1% UV light absorber; 0.45-2% pulvis weedicide;
0.45-1.5% emulsifiable solution herbicide; Each constituent mass per-cent sum is 100%;
Adopt mixer that emulsifiable solution herbicide is fully mixed in linear low density polyethylene LLDPE7042, add afterwards composite degradation catalyzer, UV light absorber and pulvis weedicide, allow all raw materials fully be mixed to get mixture; The mixture fully mixing is blow molded into film in Heating temperature under lower than the condition of 175 DEG C with inflation film manufacturing machine, is blow molded in membrane process, controlling inflation film manufacturing machine Yi district temperature is 155 DEG C, and two district's temperature are 160 DEG C, and three district's temperature are 170 DEG C, and head temperature is 165 DEG C; The thickness of film is 0.008-0.02mm, width 300-8000mm, and the physicals of film and use function meet the agricultural ground of standard GB/T 13735-92 blow moulded polyethyene coating film.
2. agricultural earth's surface as claimed in claim 1 covers weeding degradable mulch film production method, it is characterized in that, described mixer is screw mixer.
3. agricultural earth's surface as claimed in claim 1 covers weeding degradable mulch film production method, it is characterized in that, described inflation film manufacturing machine model is selected Shandong hat SJ-65 inflation film manufacturing machine.
4. agricultural earth's surface as claimed in claim 1 covers weeding degradable mulch film production method, it is characterized in that, described UV light absorber is at least one in UV light absorber UV9, UV light absorber U-V531, UV light absorber U-VP, UV light absorber U-V320, UV light absorber U-V324, UV light absorber U-V326, UV light absorber U-V327, UV light absorber U-V328, UV light absorber UV329 or UV light absorber U-V360.
5. agricultural earth's surface as claimed in claim 1 covers weeding degradable mulch film production method, it is characterized in that, described pulvis weedicide be decomposition temperature higher than in the Diuron Tech of 175 DEG C or the former medicine powder of G-30027 at least one.
6. agricultural earth's surface as claimed in claim 1 covers weeding degradable mulch film production method, it is characterized in that, described emulsifiable solution herbicide is at least one in acetochlor ec, metolachlor missible oil, 2,2 dichloropropionic acid or methyl esters nitrofen.
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| CN201210463398.3A CN102964669B (en) | 2012-11-17 | 2012-11-17 | Production method of agricultural land surface covered weeding degradable mulching film |
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| CN201210463398.3A CN102964669B (en) | 2012-11-17 | 2012-11-17 | Production method of agricultural land surface covered weeding degradable mulching film |
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| CN102964669A CN102964669A (en) | 2013-03-13 |
| CN102964669B true CN102964669B (en) | 2014-06-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214725B (en) * | 2013-05-11 | 2016-02-10 | 云南中蔗农业科技有限责任公司 | The long-acting mulch film of a kind of special resistance to oxidation of sugarcane |
| CN103214726B (en) * | 2013-05-11 | 2015-08-19 | 云南中蔗农业科技有限责任公司 | A kind of can the long-acting covering with plastic film of weeding |
| CN103408827B (en) * | 2013-08-29 | 2017-12-29 | 沈婧 | A kind of degradable Environment protection mulch film and its manufacture method |
| CN106336567A (en) * | 2016-09-18 | 2017-01-18 | 陆海荣 | Blue degradable mulching film and preparation method thereof |
| CN106957478B (en) * | 2017-05-08 | 2020-04-10 | 云南省农业科学院甘蔗研究所 | Agricultural degradable mulching film with controllable degradation time and preparation method thereof |
| CN113134212B (en) * | 2021-05-07 | 2022-06-03 | 南京信息工程大学 | Mn (manganese)0.6Ce0.4O2Degradation performance of catalyst to micro plastic at room temperature |
Citations (4)
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| CN1103832A (en) * | 1993-12-16 | 1995-06-21 | 蔡永海 | Process for producing very thin field film for weed killing |
| CN1116635A (en) * | 1995-08-28 | 1996-02-14 | 叶永成 | Agricultural controlled light and biologic degradable herbicidal mulching film |
| CN101665625A (en) * | 2008-09-03 | 2010-03-10 | 王丽红 | Plastic degrading composition, use of same and plastic and product containing same |
| CN102660068A (en) * | 2012-04-15 | 2012-09-12 | 云南省农业科学院甘蔗研究所 | Controllable sugarcane photo-thermal degradable mulch film |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5586490B2 (en) * | 2011-01-20 | 2014-09-10 | 日本ポリエチレン株式会社 | Agricultural laminated film |
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2012
- 2012-11-17 CN CN201210463398.3A patent/CN102964669B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103832A (en) * | 1993-12-16 | 1995-06-21 | 蔡永海 | Process for producing very thin field film for weed killing |
| CN1116635A (en) * | 1995-08-28 | 1996-02-14 | 叶永成 | Agricultural controlled light and biologic degradable herbicidal mulching film |
| CN101665625A (en) * | 2008-09-03 | 2010-03-10 | 王丽红 | Plastic degrading composition, use of same and plastic and product containing same |
| CN102660068A (en) * | 2012-04-15 | 2012-09-12 | 云南省农业科学院甘蔗研究所 | Controllable sugarcane photo-thermal degradable mulch film |
Non-Patent Citations (1)
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| JP特开2012-148507A 2012.08.09 |
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Owner name: YUNNAN ZHONGZHE AGRICULTURAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SUGARCANE INST., YUNNAN PROV. AGRICULTURE ACADEMY Effective date: 20140520 Owner name: SUGARCANE INST., YUNNAN PROV. AGRICULTURE ACADEMY Effective date: 20140520 |
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