CN102295934A - Liquid agricultural mulching film and production method thereof - Google Patents
Liquid agricultural mulching film and production method thereof Download PDFInfo
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- CN102295934A CN102295934A CN2011101832016A CN201110183201A CN102295934A CN 102295934 A CN102295934 A CN 102295934A CN 2011101832016 A CN2011101832016 A CN 2011101832016A CN 201110183201 A CN201110183201 A CN 201110183201A CN 102295934 A CN102295934 A CN 102295934A
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Abstract
The invention relates to a biodegradable liquid agricultural mulching film. Raw materials of the mulching film comprise corn starch, industrial alcohol, glutaraldehyde, chitin, a film-forming agent, an emulsifier, a stabilizer, an antioxidant, a wet strength agent, a conditioner, a heat absorbent, a pH regulator, a crosslinking agent, an insecticide and water. The production process steps for the mulching film comprise: adding one third of the water to a reaction tank and synchronously adding corn starch, then carrying out heating while stirring, then holding for 30 minutes when the temperature is heated to about 100 DEG C; then adding one-third of the water, stirring and cooling, adding the industrial alcohol when the temperature is lowered to about 60 DEG C, then heating and stirring, holding for 1 hours when the temperature is heated to about 80 DEG C; adding the remaining water to the reaction tank, stirring and cooling, adding the glutaraldehyde when the temperature is lowered to about 70 DEG C, stirring for about 30 minutes, then holding for about 30 minutes to enable the added raw materials to react completely; adding other remaining raw materials to the reaction tank, and uniformly stirring, stopping the reaction after about an hour to prepare the oily liquid, which is the liquid agricultural mulching film provided by the present invention.
Description
Technical field:
The invention belongs to the agricultural mulching technical scope, relate to a kind of production method of liquid agricultural mulching film.
Background technology:
Plastic film mulching cultivation can be incubated soil moisture conservation, is the effective means of the precocious volume increase of farm crop.The wide popularization and application of film-mulching cultivation technique is for developing rapidly of agricultural brought into play enormous function.But present widely used polyethylene solid mulch film is difficult to degraded, has caused huge white pollution.For overcoming this problem, at present both at home and abroad all at degradable ground of research and development membrane technique, for example Japan's development is the Biodegradable mulch of masterbatch with the regenerated cellulose, Germany development be that the photodegradation film of masterbatch and China add two degradative plastic films that treated starch makes or the like with the heat-sensitive resin in regenerated cellulose and heat-sensitive resin, overcome the above-mentioned drawback that existing polyethylene ground film is difficult to degrade effectively.But the production cost of above-mentioned degradable mulch is high especially, and inconvenience is accepted by vast farmers, is difficult to wide popularization and application.In addition, less in view of the area of effective coverage ratio of solid mulch film, the problem that often causes mulch film to waste, the direction that therefore use conveniently, degradable liquid mulch film nuisanceless, that the area of effective coverage ratio is high just becomes the continuous research and development of people.Application number is the patent application of 01130944.X, discloses a kind of multifunctional hydrolyzed mulching liquid and blending process thereof.The hydrolyzed mulching liquid of this patent application technology is made up of polyvinyl alcohol, polyacrylic acid, hydroxypropylated starch, sorbyl alcohol, Magnesium Stearate and urea raw material, employing joins polyvinyl alcohol, polyacrylic acid, hydroxypropylated starch and sorbyl alcohol in the extrusion machine, passes through room temperature and is heated to 130 ℃, 130 ℃, 110 ℃, 110 ℃ and 150 ℃/30-40
Bzr6 temperature sections; Raw material after the extruding is added Magnesium Stearate, urea and ethylene glycol more further be crushed to the fusion flocculation agent; Add quantitative water then in dissolving tank, turn on agitator slowly is sprinkled into flocculation agent and makes.This hydrolyzed mulching raw material type is more, and cost is also than higher; The method of its preparation, program are comparatively loaded down with trivial details, and production efficiency is lower.
The inventor has submitted application number 201010297067.8 on 09 26th, 2010, denomination of invention is the application for a patent for invention of a kind of liquid agricultural mulching film and production method thereof, on the low side at area, Shandong quantity of precipitation recent years, the problem that degree of drought is more serious, the contriver continues innovative research on this basis, test by has many times improved ground film formulation and production technique, has strengthened preserving moisture and degradable of mulch film, and has reduced cost value.
Summary of the invention
The purpose of this invention is to provide a kind of new liquid agricultural mulching film and production method thereof, in order to overcome the above-mentioned drawback of existing in prior technology effectively.The objective of the invention is to realize with following technical scheme:
One, the raw material of liquid agricultural mulching film of the present invention and weight part thereof consist of:
W-Gum 50-65
Industrial spirit 30-42
Glutaraldehyde 25-35
Chitin 21-29
Membrane-forming agent 10-20
Emulsifying agent 16-24
Stablizer 6-12
Antioxidant 10-20
Wet Strength Resin 5-10
Amendment 0.1-0.4
Heat absorbent 1-3
PH conditioning agent 1-5
Linking agent 2-6
Sterilant 1-8
Water 1200-1800
Preferred raw material and weight fraction thereof consist of:
W-Gum 55-60
Industrial spirit 34-38
Glutaraldehyde 28-32
Chitin 21-29
Membrane-forming agent 12-16
Emulsifying agent 18-22
Stablizer 8-10
Antioxidant 12-16
Wet Strength Resin 6-8
Amendment 0.2-0.3
Heat absorbent 1.5-2.5
PH conditioning agent 2-3
Linking agent 3-5
Sterilant 3-6
Water 1400-1600
Wherein, the preferred konjak gum of described membrane-forming agent,
Described emulsifying agent preferably polyethylene alcohol, Sodium dodecylbenzene sulfonate or sodium lauryl sulphate,
Described stablizer is a barium stearate,
The preferred DI-tert-butylphenol compounds of described antioxidant,
Described Wet Strength Resin preferred polyamide Resins, epoxy (PAE),
Described amendment preferably talc powder,
The preferred carbon black of described heat absorbent,
The preferred sodium bicarbonate of described PH conditioning agent,
The preferred urea of described linking agent,
The preferred nicotine of sterilant.
Two, the production method of agricultural mulching of the present invention, its production process is as follows:
(1) earlier 1/3rd water in the raw material is added retort, add W-Gum simultaneously, heat while stirring, when treating that temperature rises to about 100 ℃, be incubated about 30 minutes;
(2) add in the raw material 1/3rd water again in above-mentioned retort, stir cooling, when treating that temperature is reduced to about 60 ℃, add the industrial spirit in the raw material, reheat, stirring treat that temperature rises to about 80 ℃, is incubated 1 hour;
(3) in above-mentioned retort, add remainder water, stir cooling, when treating that temperature is reduced to about 70 ℃, add glutaraldehyde, and stir about 30 minutes, and then be incubated about 30 minutes, added raw material is fully reacted;
(4) in above-mentioned retort, add remaining other raw materials, and the stirring that stirs, reaction stopped substantially in 1 hour, made oily liquids, liquid agricultural mulching film promptly of the present invention.
Liquid agricultural mulching film of the present invention be suitable for emerging behind various spring, summer, the autumn proportion of crop planting preincubation, protect fertile, soil moisture conservation.During use, 7 kilograms of every mu of cardinal principles, the dilution proportion by about 1 to 10 use atomizers spray, and spray is 5 hours film forming of fine day afterwards.Every mu of ground needs about 36 yuan of expenses.
Liquid agricultural mulching film raw material of the present invention is formed advantages of simple, price is low, preparation method technology is simple, the liquid agricultural mulching film cost of being produced is low, be incubated after the use, preserve moisture, good permeability, and can degrade automatically about 80 days, the degraded back becomes the detritus fertilizer, easily accepted, be convenient to large scale application by vast farmers.
Embodiment:
Embodiment 1:
Get following raw material, unit is a kilogram,
W-Gum 55
Industrial spirit 34
Glutaraldehyde 28
Chitin 21
Membrane-forming agent 12
Emulsifying agent 18
Stablizer 8
Antioxidant 12
Wet Strength Resin 6
Amendment 0.2
Heat absorbent 1.5
PH conditioning agent 2
Linking agent 3
Sterilant 3
Water 1400
According to the following steps operation,
(1) earlier 1/3rd water in the raw material is added retort, add W-Gum simultaneously, heat while stirring, when treating that temperature rises to about 100 ℃, be incubated about 30 minutes;
(2) add in the raw material 1/3rd water again in above-mentioned retort, stir cooling, when treating that temperature is reduced to about 60 ℃, add the industrial spirit in the raw material, reheat, stirring treat that temperature rises to about 80 ℃, is incubated 1 hour;
(3) in above-mentioned retort, add remainder water, stir cooling, when treating that temperature is reduced to about 70 ℃, add glutaraldehyde, and stir about 30 minutes, and then be incubated about 30 minutes, added raw material is fully reacted;
(4) in above-mentioned retort, add remaining other raw materials, and the stirring that stirs, react and stopped in about 1 hour, make oily liquids, liquid agricultural mulching film promptly of the present invention.
Embodiment 2
Get following raw material, unit is a kilogram,
W-Gum 60
Industrial spirit 38
Glutaraldehyde 32
Chitin 29
Membrane-forming agent 16
Emulsifying agent 22
Stablizer 10
Antioxidant 16
Wet Strength Resin 8
Amendment 0.3
Heat absorbent 2.5
PH conditioning agent 3
Linking agent 5
Sterilant 6
Water 1600
According to the following steps operation,
(1) earlier 1/3rd water in the raw material is added retort, add W-Gum simultaneously, heat while stirring, when treating that temperature rises to about 100 ℃, be incubated about 30 minutes;
(2) add in the raw material 1/3rd water again in above-mentioned retort, stir cooling, when treating that temperature is reduced to about 60 ℃, add the industrial spirit in the raw material, reheat, stirring treat that temperature rises to about 80 ℃, is incubated 1 hour;
(3) in above-mentioned retort, add remainder water, stir cooling, when treating that temperature is reduced to about 70 ℃, add glutaraldehyde, and stir about 30 minutes, and then be incubated about 30 minutes, added raw material is fully reacted;
(4) in above-mentioned retort, add remaining other raw materials, and the stirring that stirs, react and stopped in about 1 hour, make oily liquids, liquid agricultural mulching film promptly of the present invention.
Liquid agricultural mulching film of the present invention is compared with existing mulch film, and various aspects of performance all is improved largely:
With " loess is prosperous " board liquid ground film on the market in contrast 1, with the U.S. special liquid-state mulch film of standing grain in contrast 2, the various aspects of performance parameter has had bigger improvement:
The contriver has mainly investigated the tensile strength, elongation at break, water-intake rate of mulch film, degradation time, every mu of ground cost value etc. fully.See table
Conclusion: find that by contrast agricultural mulching of the present invention has had bigger improvement than the product various aspects of performance parameter of market sale, and has reduced cost, must possess market outlook preferably.
Claims (3)
1. liquid agricultural mulching film is characterized in that its raw material is composed as follows according to its weight part:
W-Gum 55-60
Industrial spirit 34-38
Glutaraldehyde 28-32
Chitin 21-29
Membrane-forming agent 12-16
Emulsifying agent 18-22
Stablizer 8-10
Antioxidant 12-16
Wet Strength Resin 6-8
Amendment 0.2-0.3
Heat absorbent 1.5-2.5
PH conditioning agent 2-3
Linking agent 3-5
Sterilant 3-6
Water 1400-1600.
2. liquid agricultural mulching film as claimed in claim 1 is characterized in that,
The preferred konjak gum of described membrane-forming agent,
Described emulsifying agent preferably polyethylene alcohol, Sodium dodecylbenzene sulfonate or sodium lauryl sulphate,
Described stablizer is a barium stearate,
The preferred DI-tert-butylphenol compounds of described antioxidant,
Described Wet Strength Resin preferred polyamide Resins, epoxy,
Described amendment preferably talc powder,
The preferred carbon black of described heat absorbent,
The preferred sodium bicarbonate of described PH conditioning agent,
The preferred urea of described linking agent,
The preferred nicotine of described sterilant.
3. production method according to the described liquid agricultural mulching film of claim 1-2, its feature is comprising the steps:
(1) earlier 1/3rd water in the raw material is added retort, add W-Gum simultaneously, heat while stirring, when treating that temperature rises to about 100 ℃, be incubated about 30 minutes;
(2) add in the raw material 1/3rd water again in above-mentioned retort, stir cooling, when treating that temperature is reduced to about 60 ℃, add the industrial spirit in the raw material, reheat, stirring treat that temperature rises to about 80 ℃, is incubated 1 hour;
(3) in above-mentioned retort, add remainder water, stir cooling, when treating that temperature is reduced to about 70 ℃, add glutaraldehyde, and stir about 30 minutes, and then be incubated about 30 minutes, added raw material is fully reacted;
(4) in above-mentioned retort, add remaining other raw materials, and the stirring that stirs, reaction stopped substantially in 1 hour, made oily liquids, i.e. claim 1 or 2 described liquid agricultural mulching films.
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CN 201110183201 CN102295934B (en) | 2011-07-01 | 2011-07-01 | Liquid agricultural mulching film and production method thereof |
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CN 201110183201 CN102295934B (en) | 2011-07-01 | 2011-07-01 | Liquid agricultural mulching film and production method thereof |
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CN102295934A true CN102295934A (en) | 2011-12-28 |
CN102295934B CN102295934B (en) | 2013-07-17 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104311886A (en) * | 2014-09-30 | 2015-01-28 | 王信伟 | Agricultural liquid mulching film and production method thereof |
CN105199151A (en) * | 2015-10-30 | 2015-12-30 | 太仓市天合新材料科技有限公司 | Novel material for forming of mulching film |
CN106589728A (en) * | 2016-12-15 | 2017-04-26 | 重庆市江津区森德家庭农场 | Liquid film preparation and preparation method thereof |
CN109197283A (en) * | 2018-09-08 | 2019-01-15 | 佛山市森昂生物科技有限公司 | A kind of preparation method of degradable water conservation mulch |
CN112753477A (en) * | 2021-02-26 | 2021-05-07 | 广州市园林建筑工程公司 | Arbor out-of-season full-crown transplanting moisturizing rooting method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1104656A (en) * | 1993-12-31 | 1995-07-05 | 中国科学院兰州化学物理研究所 | Biodegradable films and their production |
CN101161718A (en) * | 2007-11-27 | 2008-04-16 | 中国科学院长春应用化学研究所 | Biological degradation liquid film and preparation method |
-
2011
- 2011-07-01 CN CN 201110183201 patent/CN102295934B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1104656A (en) * | 1993-12-31 | 1995-07-05 | 中国科学院兰州化学物理研究所 | Biodegradable films and their production |
CN101161718A (en) * | 2007-11-27 | 2008-04-16 | 中国科学院长春应用化学研究所 | Biological degradation liquid film and preparation method |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104311886A (en) * | 2014-09-30 | 2015-01-28 | 王信伟 | Agricultural liquid mulching film and production method thereof |
CN105199151A (en) * | 2015-10-30 | 2015-12-30 | 太仓市天合新材料科技有限公司 | Novel material for forming of mulching film |
CN106589728A (en) * | 2016-12-15 | 2017-04-26 | 重庆市江津区森德家庭农场 | Liquid film preparation and preparation method thereof |
CN106589728B (en) * | 2016-12-15 | 2019-01-08 | 重庆市江津区森德家庭农场 | A kind of liquid-state mulch film preparation and preparation method thereof |
CN109197283A (en) * | 2018-09-08 | 2019-01-15 | 佛山市森昂生物科技有限公司 | A kind of preparation method of degradable water conservation mulch |
CN112753477A (en) * | 2021-02-26 | 2021-05-07 | 广州市园林建筑工程公司 | Arbor out-of-season full-crown transplanting moisturizing rooting method |
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