CN105860991A - Agricultural liquid mulching film and production method thereof - Google Patents
Agricultural liquid mulching film and production method thereof Download PDFInfo
- Publication number
- CN105860991A CN105860991A CN201610265193.2A CN201610265193A CN105860991A CN 105860991 A CN105860991 A CN 105860991A CN 201610265193 A CN201610265193 A CN 201610265193A CN 105860991 A CN105860991 A CN 105860991A
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- liquid
- mulch film
- starch
- modified starch
- mulching film
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/52—Mulches
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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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
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Protection Of Plants (AREA)
Abstract
The invention relates to a mulching film and particularly relates to an agricultural liquid mulching film and a production method thereof. The liquid mulching film provided by the invention is prepared by taking multiple kinds of modified starch as raw materials accompanied by humic acid substances, a vegetable adhesive, a crosslinking agent, polyvinyl alcohol, a biological emulsifier, a surfactant and a herbicide, has good heat absorption, heat preservation, water absorption, moisture preservation and air permeability and can be completely and naturally degraded within 30-90 days based on biological principles to form an organic fertilizer and can improve and conserve the soil; and moreover, the liquid mulching film has the advantages of environmental friendliness, energy saving, labor saving, time saving and no pollution, can prevent the seeds and seedlings from being burnt by strong light and high temperature, and completely replaces a plastic mulching film.
Description
Technical field
The present invention relates to a kind of mulch film, particularly to a kind of agricultural liquid-state mulch film and production method thereof.
Background technology
Liquid ground film, is mainly used in the in early days covering with ground sheeting of arid, cold, knob crops and wasteland, sand ground, saline and alkaline
Ground and beach regulation and the field such as engineering road bank protection, dune-fixating forestation greening and the anti-seepage of channels, trees are antifreeze.
Liquid ground film under prior art, is a kind of degradable black liquid state mulch film, mainly with brown coal, weathered coal or peat pair
Black liquid, marine alga waste liquid, molasses waste liquid, wine brewing waste liquid or starch waste liquor are modified, and black liquor is again as humic acid simultaneously
Extractant, produces the fertilizer needed for soil；Lignin, cellulose and polysaccharide form macromolecule under the effect of crosslinking agent, so
After produce multifunction degradable black liquid state mulch film with various additives, trace element, pestsides synthesis again.
Also having a kind of liquid ground film is to mix adding activating agent, crosslinking agent etc. rich in the weathered coal of humic acid for primary raw material
Multifunction degradable black liquid state mulch film.
Liquid-state mulch film had both had the effect heating, preserve soil moisture, keeping a full stand of seedings of plastic film, had again stronger adhesive capacity, can be by grogs
It is coupled to preferable aggregate；Thoroughly solve black liquid, marine alga waste liquid, molasses waste liquid, wine brewing waste liquid or starch waste liquor and
Plastic film to soil and environmental pollution, add again simultaneously integrate agricultural chemicals, fertilizer and agricultural film feature and with after turn over into
Soil, can become soil conditioner；Can spray and make film in scene；Can naturally emerge；To the advantage such as topography and geomorphology is adaptable.
Current liquid ground film, has a following weak point:
1, make raw material and obtain more difficulty, cause production cost to raise.
2, the Plastic-film disintegration time is uncontrollable.
3, water conservation, insulation, freezing tolerance are poor.
Summary of the invention
In order to solve problem of the prior art, the invention provides a kind of agricultural liquid-state mulch film and production method thereof, its heat absorption,
Insulation, water suction, moisturizing, air permeability is good, utilize biological principle can in 30-90 days complete natural degradation form organic fertilizer,
Can improve, maintenance soil；Environmental protection, energy-conservation, saving of labor, save time, stop to pollute, high light burn seed and seedling can be avoided,
Substituted for plastic mulch film completely.
The technical solution adopted in the present invention is as follows:
A kind of agricultural liquid-state mulch film, it includes consisting of composition according to mass ratio:
Humic acid material 10g-800g, plant adhesive 10g-500g, composite modified starch 10-500g, crosslinking agent 5-200g,
Polyvinyl alcohol 10-500g, biological emulsifier 5-500g, surfactant 0.01-10g, herbicide 1-20g, water 180-46000g.
Humic acid material is that brown coal, weathered coal, aliphatic acid waste liquid, papermaking night, marine alga waste liquid, molasses waste liquid, wine brewing are useless
The composition of one or more in liquid, mud, starch waste liquor.
Composite modified starch is that our company's specialty carries out independent research, the special product oneself produced for liquid ground film, and it is phosphorus
Acid esters oxidization jointly modified starch, cross-links acetate composite modified starch, and oxidation acidifying composite modified starch, cross-linked carboxymethyl forms sediment
The composition of one or more in powder or crosslinking hydroxyalkyl starch.
Crosslinking agent uses the one in epoxychloropropane, POCl3 or sodium trimetaphosphate.
Biological emulsifier uses starch biology latex, converted starch biology latex or the group of one or more in propyl benzene biogum Ruzhong
Compound.
Surfactant uses dioctyl succinate disulfonate acid, sodium glycocholate, the one in sldium lauryl sulfate or stearic acid.
The production method of a kind of agricultural liquid-state mulch film, comprises the following steps:
A, in retort, add cold water, be slowly added to humic acid material as claimed in claim 1, plant adhesive,
Composite modified starch, crosslinking agent and polyvinyl alcohol, stir 20 minutes so that it is be uniformly dispersed, start to be gradually heated to 80-98 degree,
Being incubated 10-120 minute, equipment is cooled to normal temperature；
B, add described biological emulsifier, surfactant and herbicide, high-speed stirred 1-50 minute at normal temperatures.
The technical scheme that the present invention provides has the benefit that
A kind of agricultural liquid-state mulch film of the present invention and production method thereof, it absorbs heat, is incubated, absorbs water, moisturizing, and air permeability is good,
Utilize biological principle can in 30-90 days complete natural degradation form organic fertilizer, can improve, maintenance soil；Environmental protection, joint
Energy, saving of labor, save time, stop pollute, high light burn seed and seedling, complete substituted for plastic mulch film can be avoided.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with detailed description of the invention the present invention made into
One step ground describes in detail.
Embodiment one
A kind of agricultural liquid-state mulch film, it includes consisting of composition according to mass ratio:
Humic acid material 10g-800g, plant adhesive 10g-500g, composite modified starch 10-500g, crosslinking agent 5-200g,
Polyvinyl alcohol 10-500g, biological emulsifier 5-500g, surfactant 0.01-10g, herbicide 1-20g, water 180-46000g.
Humic acid material is that brown coal, weathered coal, aliphatic acid waste liquid, papermaking night, marine alga waste liquid, molasses waste liquid, wine brewing are useless
The composition of one or more in liquid or starch waste liquor.
Crosslinking agent uses the one in epoxychloropropane, POCl3 or sodium trimetaphosphate.
Surfactant uses dioctyl succinate disulfonate acid, sodium glycocholate, the one in sldium lauryl sulfate or stearic acid.
Composite modified starch in the present embodiment uses phosphate oxidization jointly modified starch, is to use Semi-dry process technique, it may be assumed that
By certain starch a certain amount of, knocking down in mixer, spray adds the aqueous solution of above industrial chemicals preparation, uses gas after stirring
Fluidized drying machine carries out predrying, puts reactor into and reacts certain time, then air-flow cooling, water balance, packaging at 80-180 DEG C.
After using phosphate oxidization jointly modified starch as raw material, mulch film reaction control is low, good fluidity, adhesion strong, surely
The performances such as qualitative height, compatibility are good, film is soft, resistance to broken, water conservation, moisture-resistant abrasion are completely superior to any of which monotropy and produce
The performance of product, and part PVA can be replaced, economize on resources reduction cost, and degradable within the setting time, after decomposing simultaneously
Nitrogen, P elements contained in product are stayed and are become organic fertilizer in soil.
The production method of a kind of agricultural liquid-state mulch film of the present embodiment, comprises the following steps:
A, in retort add cold water, be slowly added to humic acid material as above, plant adhesive, complex denaturation
Starch, crosslinking agent and polyvinyl alcohol, stir 20 minutes so that it is be uniformly dispersed, and starts to be gradually heated to 80-98 degree, is incubated 10-120
Minute, equipment is cooled to normal temperature；
B, add described biological emulsifier, surfactant and herbicide, high-speed stirred 1-50 minute at normal temperatures.
Embodiment two:
The present embodiment is with the difference of embodiment one, and the composite modified starch in the present embodiment uses crosslinking acetate to be combined
Converted starch, is to use wet process technique, it may be assumed that add a certain amount of water in a kettle., and stirring adds a certain amount of certain and forms sediment
The starch milk of powder furnishing 20-45% concentration, add catalyst controlling emulsion pH value is 7-10, adds crosslinking agent and is warming up to simultaneously
30-58 DEG C is reacted 1-3 hour, is cooled to 30-50 DEG C and adds esterifying agent reaction 1-6 hour, neutralizes with the hydrochloric acid of 5-10% concentration
PH value is 6-8, and eddy flow washs, is dehydrated, dries, packs.
Use crosslinking acetate composite modified starch, after complex denaturation, both contained volume hydrophilic hydroxy group, more introduce thin
Aqueous strong ester group, can have more preferable compatibility with soil, and it sticks with paste liquid good fluidity, adhesion is strong, stability is high, compatibility
The performances such as fabulous, film forming is pliable and tough, high shear broken, high temperature resistant, resistance to flexible, resistance to, acid and alkali-resistance, resistance to retrogradation are completely superior to wherein
The performance of any monotropy product, can replace more PVA (polyvinyl alcohol), the degradation time of adjustable mulch film, and
In the setting time degradable.
Embodiment three:
The present embodiment is with the difference of embodiment one and embodiment two, and the composite modified starch in the present embodiment uses oxidation
Acidifying composite modified starch, oxidation acidifying composite modified starch uses Semi-dry process technique, it may be assumed that by certain starch a certain amount of,
Knocking down in mixer, spray adds the aqueous solution of above industrial chemicals preparation, uses pneumatic drier to carry out predrying after stirring,
Put reactor into and react certain time, then air-flow cooling, water balance, packaging at 80-150 DEG C.
Use oxidation acidifying composite modified starch, the composite modified starch low cost used in ratio one, example two, become through compound
After property, its reaction control is low, good fluidity, adhesion are strong, stability is high, compatibility is good, film is soft, resistance to broken, water conservation,
The performances such as moisture-resistant abrasion are completely superior to the performance of any of which monotropy product, and can replace part PVA, and when setting
Interior degradable, economize on resources reduction cost.
Embodiment four:
The present embodiment is with the difference of embodiment one to three, and the composite modified starch in the present embodiment uses cross-linked carboxymethyl
Sodium starch, is to use organic solvent method production technology, it may be assumed that a certain amount of starch is put into kneader, adds solvent, and stirring is all
Even, add catalyst and be simultaneously introduced crosslinking agent, react 10-50 minute at 20-50 DEG C, then put into etherifying agent, at 40-80 DEG C
Lower reaction 1-4 hour, is neutralized with hydrochloric acid to neutrality, filters, then wash 1-3 time with high concentration solvent, then at 30-70 DEG C
Vacuum drying product.
Use crosslinked carboxymethyl fecula, after complex denaturation, preferably improve the water conservation sticking with paste liquid than sodium carboxymethyl starch list product
The performances such as performance, adhesion, stability, compatibility, film strength, and carboxymethylcellulose calcium (CMC) can be replaced completely,
Also can replace part PVA, with other composite modified starch with the use of better, can preferably improve mulch film film forming and
Water-retaining property, and degradable within the setting time, economize on resources, reduce cost.
Embodiment five:
The present embodiment is with the difference of embodiment one to four, and the composite modified starch in the present embodiment uses crosslinking-oxidization hydroxyl
Alkyl starches, is to use wet process technique, it may be assumed that add a certain amount of water in a kettle., and stirring adds a certain amount of starch and adjusts
Becoming the starch milk of 20-45% concentration, add catalyst controlling emulsion pH value is 7-10, adds crosslinking agent, is warming up to 30-60 DEG C
Reacting 20-60 minute, add oxidant and continue insulation reaction 10-50 minute, emulsion is cooled to 30-50 DEG C and is slowly added to etherifying agent
React 1-6 hour, with in the hydrochloric acid of 5-10% concentration and pH value be 6-8, eddy flow washs, is dehydrated, dries, packs.
Use crosslinking-oxidization hydroxyalkyl starch, after complex denaturation, can preferably improve than hydroxyalkyl starch list product and stick with paste liquid
The performances such as adhesion, stability, compatibility, film strength, water-retaining property, preferably improve paste liquid stability and the film forming of mulch film
Resistance to water, and degradable within the setting time.
Embodiment six:
The present embodiment is with the difference of embodiment one to five, and the biological emulsifier in the present embodiment uses starch biology latex
Or converted starch biology latex, it is with starch or converted starch as primary raw material, utilizes biological and chemical modification to form, its water conservation
Property, opacity, dry strength, dry consistency are superior to and become latex；Good with other fusing property of auxiliary agent, and there is stronger bonding
Power, chemistry and stable mechanical performance；Free from extraneous odour, anti-ice is frozen effective, and degradable within the setting time.
Embodiment seven:
The present embodiment is with the difference of embodiment one to six, and the biological emulsifier in the present embodiment uses propyl benzene latex, is
With starch be main with styrene-acrylic latex raw material the biosynthesis latex through chemical synthesis, in addition to possessing biological properties of latex, it is anti-
Tension force and pliability are more preferably, and degradable within the setting time.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the spirit and principles in the present invention it
In, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (8)
1. an agricultural liquid-state mulch film, it is characterised in that it includes consisting of composition:
Humic acid material 10g-800g, plant adhesive 10g-500g, composite modified starch 10-500g, crosslinking agent 5-200g,
Polyvinyl alcohol 10-500g, biological emulsifier 5-500g, surfactant 0.01-10g, herbicide 1-20g, water 180-46000g.
A kind of agricultural liquid-state mulch film the most according to claim 1, it is characterised in that described humic acid material is brown
One in coal, weathered coal, aliphatic acid waste liquid, papermaking night, marine alga waste liquid, molasses waste liquid, wine brewing waste liquid or starch waste liquor
Or multiple composition.
A kind of agricultural liquid-state mulch film the most according to claim 1, it is characterised in that described composite modified starch is phosphorus
Acid esters oxidization jointly modified starch, cross-links acetate composite modified starch, and oxidation acidifying composite modified starch, cross-linked carboxymethyl forms sediment
The composition of one or more in powder, crosslinking hydroxyalkyl starch.
A kind of agricultural liquid-state mulch film the most according to claim 1, it is characterised in that described crosslinking agent uses epoxy chlorine
One in propane, POCl3, sodium trimetaphosphate.
A kind of agricultural liquid-state mulch film the most according to claim 1, it is characterised in that described biological emulsifier uses and forms sediment
Powder biology latex, converted starch biology latex or the composition of one or more in propyl benzene biogum Ruzhong.
A kind of agricultural liquid-state mulch film the most according to claim 1, it is characterised in that described surfactant uses two
One in octyl group sodium sulfosuccinate, sodium glycocholate, sldium lauryl sulfate or stearic acid.
A kind of agricultural liquid-state mulch film the most according to claim 1, it is characterised in that described plant adhesive uses glutinous
Ground rice, bean gum, dextrin, the composition of one or more of gum arabic.
8. the production method of the agricultural liquid-state mulch film as described in claim 1-7 any one, it is characterised in that include
Following steps:
A, in retort, add cold water, be slowly added to humic acid material as claimed in claim 1, plant adhesive,
Composite modified starch, crosslinking agent and polyvinyl alcohol, stir 20 minutes so that it is be uniformly dispersed, start to be gradually heated to 80-98 degree,
Being incubated 10-120 minute, equipment is cooled to normal temperature；
B, add described biological emulsifier, surfactant and herbicide, high-speed stirred 1-50 minute at normal temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610265193.2A CN105860991A (en) | 2016-04-19 | 2016-04-19 | Agricultural liquid mulching film and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610265193.2A CN105860991A (en) | 2016-04-19 | 2016-04-19 | Agricultural liquid mulching film and production method thereof |
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| CN201610265193.2A Pending CN105860991A (en) | 2016-04-19 | 2016-04-19 | Agricultural liquid mulching film and production method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325502A (en) * | 2017-07-27 | 2017-11-07 | 陕西科技大学 | A kind of water conservation getting fat Biodegradable agricultural mulch film and preparation method thereof |
| CN109161059A (en) * | 2018-09-14 | 2019-01-08 | 蚌埠创特新材料科技有限公司 | A kind of complete biological controlled degradation multifunctional agricultural weeding soil moisture conservation mulch |
| CN109593310A (en) * | 2018-11-30 | 2019-04-09 | 烟台沃斯生物技术有限公司 | Starch a kind ofly and preparation method thereof |
| CN109845550A (en) * | 2018-11-30 | 2019-06-07 | 烟台沃斯生物技术有限公司 | Starch a kind ofly and preparation method thereof |
| CN110128709A (en) * | 2018-02-09 | 2019-08-16 | 刘敏 | A kind of environment friendly biological fire retardant and preparation method thereof |
| CN110557940A (en) * | 2017-03-29 | 2019-12-10 | Scg包装股份有限公司 | Soil covering material with structural layer |
| CN110591260A (en) * | 2019-08-31 | 2019-12-20 | 吴广龙 | Spraying type degradable mulching film material special for dry land and preparation method thereof |
| CN111607132A (en) * | 2020-06-10 | 2020-09-01 | 山东益源环保科技有限公司 | Concentrated ecological mulching film and production method thereof |
| CN111820213A (en) * | 2020-07-28 | 2020-10-27 | 仲恺农业工程学院 | Bio-based sustained and controlled release pesticide liquid mulching film and preparation method and application thereof |
| CN116875118A (en) * | 2023-07-13 | 2023-10-13 | 中华全国供销合作总社天津再生资源研究所 | Grass-inhibiting liquid mulching film special for green house green beans and preparation method thereof |
-
2016
- 2016-04-19 CN CN201610265193.2A patent/CN105860991A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557940A (en) * | 2017-03-29 | 2019-12-10 | Scg包装股份有限公司 | Soil covering material with structural layer |
| CN107325502A (en) * | 2017-07-27 | 2017-11-07 | 陕西科技大学 | A kind of water conservation getting fat Biodegradable agricultural mulch film and preparation method thereof |
| CN107325502B (en) * | 2017-07-27 | 2019-03-26 | 陕西科技大学 | A kind of water conservation getting fat Biodegradable agricultural mulch and preparation method thereof |
| CN110128709A (en) * | 2018-02-09 | 2019-08-16 | 刘敏 | A kind of environment friendly biological fire retardant and preparation method thereof |
| CN109161059A (en) * | 2018-09-14 | 2019-01-08 | 蚌埠创特新材料科技有限公司 | A kind of complete biological controlled degradation multifunctional agricultural weeding soil moisture conservation mulch |
| CN109593310A (en) * | 2018-11-30 | 2019-04-09 | 烟台沃斯生物技术有限公司 | Starch a kind ofly and preparation method thereof |
| CN109845550A (en) * | 2018-11-30 | 2019-06-07 | 烟台沃斯生物技术有限公司 | Starch a kind ofly and preparation method thereof |
| CN110591260A (en) * | 2019-08-31 | 2019-12-20 | 吴广龙 | Spraying type degradable mulching film material special for dry land and preparation method thereof |
| CN111607132A (en) * | 2020-06-10 | 2020-09-01 | 山东益源环保科技有限公司 | Concentrated ecological mulching film and production method thereof |
| CN111820213A (en) * | 2020-07-28 | 2020-10-27 | 仲恺农业工程学院 | Bio-based sustained and controlled release pesticide liquid mulching film and preparation method and application thereof |
| CN111820213B (en) * | 2020-07-28 | 2021-11-19 | 仲恺农业工程学院 | Bio-based sustained and controlled release pesticide liquid mulching film and preparation method and application thereof |
| CN116875118A (en) * | 2023-07-13 | 2023-10-13 | 中华全国供销合作总社天津再生资源研究所 | Grass-inhibiting liquid mulching film special for green house green beans and preparation method thereof |
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Application publication date: 20160817 |