CN102964669A - 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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- CN102964669A CN102964669A CN2012104633983A CN201210463398A CN102964669A CN 102964669 A CN102964669 A CN 102964669A CN 2012104633983 A CN2012104633983 A CN 2012104633983A CN 201210463398 A CN201210463398 A CN 201210463398A CN 102964669 A CN102964669 A CN 102964669A
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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 China rural laborer situation 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 be a kind of crop yield and quality of can guaranteeing, can reduce again the disposable abridged edition new agricultural technology that the 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 the photodegradation film cost is lower, but degradation time is difficult to control; The Biodegradable mulch cost is more than 2 times of normal film price.Analysis-by-synthesis is low-cost, the controllable degradative plastic film of degraded will be conducive to Industry Promotion and use.
The weed removal mulch film production method mainly contains 2 kinds, and a kind of method spreads upon the mulch film surface after with the weedicide adding assistant, and rolling packing after the oven dry will have the one side of weedicide to cover the soil table and use, and weedicide is time-consuming takes a lot of work but smear.Another kind of method side directly adds to weedicide (pulvis, missible oil or compound herbicide) in the polyvinyl resin, utilize the inflation film manufacturing machine once shaped, cover when using regardless of pros and cons, if but the medicament selection is improper, herbicidal effect is not good after the weedicide heating, needs all good weed removal mulch films of effect easy to produce and use in the production.
Summary of the invention
For the deficiency of above-mentioned existence, the present invention proposes the production method that a kind of agricultural earth's surface covers degradative plastic film.Be 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 the deposits yields poisoning.
The present invention is achieved through the following technical solutions:
A kind of agricultural earth's surface covers the weeding degradable mulch film production method, is made by 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 consist of; Degradation catalyst is chosen under the catalysis of light, heat can continue cerium stearate and the manganese stearate that generation is degraded after the lucifuge;
The 0.01%-1% UV light absorber; 0.45-2% pulvis weedicide;
The 0.45-1.5% emulsifiable solution herbicide;
Adopt mixer that the missible oil weeding fully is mixed among the 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 of abundant mixing is lower than in Heating temperature with inflation film manufacturing machine under 175 ℃ the condition and is blow molded into film, be blow molded in the membrane process, district's temperature of control inflation film manufacturing machine is 155 ℃, and two district's temperature are 160 ℃, and three district's temperature are 170 ℃, and head temperature is 165 ℃; 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 the screw mixer; The 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 the fluorescence light source, and itself does not change.Select at least a among 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 the UV light absorber U-V360.
It is at least a that described pulvis weedicide is that decomposition temperature is higher than in 175 ℃ Diuron Tech or the former medicine powder of G-30027.
Described emulsifiable solution herbicide is at least a in acetochlor ec, metolachlor missible oil, 2,2 dichloropropionic acid or the methyl esters nitrofen.
The raw material that the present invention produces should mix emulsifiable solution herbicide and polyethylene first in mixing, thereby guarantees 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.
This agricultural earth's surface of adopting the present invention to produce covers weeding degradable mulch film, and degradation time 90-120 days, about 90 days working lipe of weeding, the weeds scope comprised 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 the mass percent example.
Embodiment one
Utilize the screw mixer that acetochlor ec 0.6% fully is blended among the 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 mixing, utilize Shandong hat SJ-65 inflation film manufacturing machine to be lower than in Heating temperature under 175 ℃ the condition and be blow molded into film, wherein will heat 155 ℃ of district's temperature modulation, 160 ℃ of two district's temperature, 170 ℃ in three districts, 165 ℃ of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the agricultural ground of the use compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film was preserved 5 months under dark low temperature.
Embodiment two
Utilize the screw mixer that metolachlor 0.8% fully is blended among the 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 lower than in Heating temperature under 175 ℃ the condition and be blow molded into film, wherein will heat 155 ℃ of district's temperature modulation, 160 ℃ of two district's temperature, 170 ℃ in three districts, 165 ℃ of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the agricultural ground of the use compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film was preserved 5 months under dark low temperature.
Embodiment three
Utilize the screw mixer that metolachlor 0.4%, acetochlor 0.4% fully are blended among the 97.6% polyethylene LLDPE 7042, add afterwards cerium stearate 0.2%, manganese stearate 0.1%, 0.3% UV light absorber UV326, G-30027 pulvis 1%, allow the abundant mixing of all raw materials, utilize Shandong hat SJ-65 inflation film manufacturing machine to be lower than in Heating temperature under 175 ℃ the condition and be blow molded into film, wherein will heat 155 ℃ of district's temperature modulation, 160 ℃ of two district's temperature, 170 ℃ in three districts, 165 ℃ of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the agricultural ground of the use compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film was preserved 5 months under dark low temperature.
Embodiment four
Utilize the screw mixer with acetochlor 0.2%, 2,2-Tripon 0.4% fully is blended among the 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 mixing, utilize Shandong hat SJ-65 inflation film manufacturing machine to be lower than in Heating temperature under 175 ℃ the condition and be blow molded into film, wherein will heat 155 ℃ of district's temperature modulation, 160 ℃ of two district's temperature, 170 ℃ in three districts, 165 ℃ of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the agricultural ground of the use compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film was preserved 5 months under dark low temperature.
Embodiment five
Utilize the screw mixer that metolachlor 0.4%, methyl esters nitrofen 0.4% fully are blended among the 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 the abundant mixing of all raw materials, utilize Shandong hat SJ-65 inflation film manufacturing machine to be lower than in Heating temperature under 175 ℃ the condition and be blow molded into film, wherein will heat 155 ℃ of district's temperature modulation, 160 ℃ of two district's temperature, 170 ℃ in three districts, 165 ℃ of head temperatures.The thickness of film is 0.008mm, width 1500mm, and the physicals of film and the agricultural ground of the use compound national standard GB13735-92 blow moulded polyethyene of function coating film, packaged film was preserved 5 months under dark low temperature.
Claims (6)
1. an agricultural earth's surface covers the weeding degradable mulch film production method, it is characterized in that being made by 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 consist of;
The 0.01%-1% UV light absorber; 0.45-2% pulvis weedicide;
The 0.45-1.5% emulsifiable solution herbicide;
Adopt mixer that the missible oil weeding fully is mixed among the 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 of abundant mixing is lower than in Heating temperature with inflation film manufacturing machine under 175 ℃ the condition and is blow molded into film, be blow molded in the membrane process, district's temperature of control inflation film manufacturing machine is 155 ℃, and two district's temperature are 160 ℃, and three district's temperature are 170 ℃, and head temperature is 165 ℃; 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 the weeding degradable mulch film production method, it is characterized in that described mixer is the screw mixer.
3. agricultural earth's surface as claimed in claim 1 covers the 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 the weeding degradable mulch film production method, it is characterized in that described UV light absorber is at least a among 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 the UV light absorber U-V360.
5. agricultural earth's surface as claimed in claim 1 covers the weeding degradable mulch film production method, it is characterized in that, it is at least a that described pulvis weedicide is that decomposition temperature is higher than in 175 ℃ Diuron Tech or the former medicine powder of G-30027.
6. agricultural earth's surface as claimed in claim 1 covers the weeding degradable mulch film production method, it is characterized in that, described emulsifiable solution herbicide is at least a in acetochlor ec, metolachlor missible oil, 2,2 dichloropropionic acid or the 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 true CN102964669A (en) | 2013-03-13 |
| CN102964669B CN102964669B (en) | 2014-06-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214725A (en) * | 2013-05-11 | 2013-07-24 | 云南中蔗农业科技有限责任公司 | Oxidation resistant long-acting mulch film for sugar cane |
| CN103214726A (en) * | 2013-05-11 | 2013-07-24 | 云南中蔗农业科技有限责任公司 | Herbicidal long-term covering mulch |
| CN103408827A (en) * | 2013-08-29 | 2013-11-27 | 河北奥柯柏环保科技有限公司 | Degradable environmental-friendly mulching film and preparation method thereof |
| CN106336567A (en) * | 2016-09-18 | 2017-01-18 | 陆海荣 | Blue degradable mulching film and preparation method thereof |
| CN106957478A (en) * | 2017-05-08 | 2017-07-18 | 云南省农业科学院甘蔗研究所 | Controllable agricultural degradative plastic film of degradation time and preparation method thereof |
| CN113134212A (en) * | 2021-05-07 | 2021-07-20 | 南京信息工程大学 | Mn (manganese)0.6Ce0.4O2Degradation performance of catalyst to micro plastic at room temperature |
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| CN101665625A (en) * | 2008-09-03 | 2010-03-10 | 王丽红 | Plastic degrading composition, use of same and plastic and product containing same |
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| 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 |
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Patent Citations (5)
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| CN1116635A (en) * | 1995-08-28 | 1996-02-14 | 叶永成 | Agricultural controlled light and biologic degradable herbicidal mulching film |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214725A (en) * | 2013-05-11 | 2013-07-24 | 云南中蔗农业科技有限责任公司 | Oxidation resistant long-acting mulch film for sugar cane |
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| CN103408827A (en) * | 2013-08-29 | 2013-11-27 | 河北奥柯柏环保科技有限公司 | Degradable environmental-friendly mulching film and preparation method thereof |
| CN106336567A (en) * | 2016-09-18 | 2017-01-18 | 陆海荣 | Blue degradable mulching film and preparation method thereof |
| CN106957478A (en) * | 2017-05-08 | 2017-07-18 | 云南省农业科学院甘蔗研究所 | Controllable agricultural degradative plastic film of degradation time 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 |
| CN113134212A (en) * | 2021-05-07 | 2021-07-20 | 南京信息工程大学 | Mn (manganese)0.6Ce0.4O2Degradation performance of catalyst to micro plastic at room temperature |
| 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 |
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