CN105419365B - A kind of black liquid state mulch film and preparation method thereof - Google Patents
A kind of black liquid state mulch film and preparation method thereof Download PDFInfo
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- CN105419365B CN105419365B CN201610048779.3A CN201610048779A CN105419365B CN 105419365 B CN105419365 B CN 105419365B CN 201610048779 A CN201610048779 A CN 201610048779A CN 105419365 B CN105419365 B CN 105419365B
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- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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Abstract
The present invention relates to agricultural liquid-state mulch film field, a kind of black liquid state mulch film and preparation method thereof is disclosed.Liquid-state mulch film is made by following material：Pitch, marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl diamine, tween, water.Preparation method is：Pitch is heated to 150 190 DEG C and is stirred；By marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl diamine, tween, which is added in water, to stir, and is heated to 45 65 DEG C；By step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.The liquid-state mulch film of the present invention is after use, good in the film-formation result of earth's surface, can improve soil texture, and water conservation, insulation, soil moisture conservation effect are outstanding, easily degraded, and with weeding, promote the function of crop root system growth.
Description
Technical field
The present invention relates to agricultural liquid-state mulch film field, more particularly to a kind of black liquid state mulch film and preparation method thereof.
Background technology
During proportion of crop planting, it will usually cover plastic film in earth's surface after proportion of crop planting, play insulation,
Moisture-keeping function, so that crops early emerge, precocious and raising yield.Traditional plastic film in transport, overlay film, winder compared with
For trouble, efficiency is influenceed.In addition, plastic film is easily run by wind, crop growth is influenceed.And plastic film is easily broken
Broken, fragment reclaims difficult after remaining in soil, not degradable, causes soil contaminated, causes soil block hardened, under fertility
Drop.
Authorization Notice No. is CN103613460B, and the applying date discloses one for the Chinese invention patent on November 25th, 2011
Plant liquid-state mulch film function, preparation and its application method.Its main technical schemes is：Sludge is taken, the trichlorine that addition is dissolved by water is different
The bactericidal agent deodoring and disinfecting that cyanuric acid is constituted；Then the former powder of humic acid, inorganic salts and water are added to mix after homogeneous, then is passed through
The masterbatch of body of paste composition is made in grinding, reaction；Take polyacrylamide and its derivative, lignosulfonates or/and cellulose
Derivative constitutes the son material with film forming, infiltration, scattered, chelating and water retention property；Above-mentioned sub- material is dissolved by water when using, then
It is added into stirring in masterbatch and atherosclerotic body is made, then adds water agitation and dilution uniform, you can form ground by atomizers spray
Film.By sludge be major ingredient preparation solution state mulch film, the problem of Treatment of Sludge is not only solved substantially, more importantly make its change give up into
Treasured can culture fertility, and have the function heat, preserve soil moisture, promoting plant growth, realization elimination " white pollution ", control agriculture significantly
The industry airborne dust factor, improved soil, saving water resource, increasing peasant income section branch promotes agricultural sustainable development.
The problem of liquid-state mulch film of above-mentioned technical proposal solves " white pollution " to a certain extent, and become using sludge
Waste be changed into values, energy-conserving and environment-protective, but the water conservation of the liquid-state mulch film, heat insulation effect are not ideal enough, and feature is more single.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of black liquid state mulch film and preparation method thereof.The present invention
Algae liquid plastic film after use, it is good in the film-formation result of earth's surface, soil texture can be improved, water conservation, heat insulation effect are outstanding,
Easily degraded, and with weeding, promote the function of crop root system growth.
The present invention concrete technical scheme be：A kind of black liquid state mulch film, by the material composition of following masses part：Pitch
80-120 parts, 20-40 parts of marine alga concentrate, 3-5 parts of polyvinyl alcohol, 3-5 parts of carboxymethyl cellulose, 3-5 parts of silk-fibroin powder, oxygenation
3-5 parts of agent, 1-2 parts of weeding particle, 1-3 parts of alkyl diamine, 1-3 parts of tween, 80-100 parts of water.
In the black liquid state mulch film of the present invention, due to pitch, marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk egg
The presence of white powder, forms the liquid with certain stickiness, after soil surface is sprayed onto, can quickly form layer of gel shape
Film, soil water evaporation can be suppressed after film forming, heat scatters and disappears, play a part of water conservation, insulation.The adhesion of the film and soil
Power is strong, the soil particle in soil can be coupled into preferable aggregate, so as to improve soil texture, has soil preferably logical
Permeability, is adapted to the growth of crops.Marine alga concentrate, polyvinyl alcohol, carboxymethylcellulose component have in the liquid-state mulch film
Film forming, caking property are good after the moisture-keeping functions of color, with silk-fibroin powder compounding, and have countless three-dimensional micropores in film forming caudacoria
Road, adds soil and extraneous permeability, is easy to " respiratory ventilation ", but is unlikely to make heat distribute rapidly, particularly suitable
In the main component of liquid-state mulch film.Alkyl diamine is surfactant, can strengthen the solubility of pitch, and tween can strengthen liquid
The emulsifying capacity of state mulch film.This has can natural degradation, environmentally safe, environmental protection after liquid-state mulch film sprinkling.
As the preferred of the technical program, the marine alga concentrate is made by following methods：It is sea by marine alga chopping
Algae powder, is then added to boiling 5-10min in the boiling water of its 100-200 times of quality by marine alga powder；Then by marine alga powder
Take out in draining, the sodium pyrophosphate solution for being added to 10-20 times of quality, and ultrasonication 1-2h, marine alga mucus is made；
Wherein the mass concentration of sodium pyrophosphate is 3%, and ultrasonication temperature is 65-70 DEG C, and ultrasonic power is 800-1200W, is surpassed
Frequency of sound wave is 18-22kHz；Sodium hydroxide solution is added dropwise into marine alga mucus and is adjusted to neutrality, finally marine alga mucus is concentrated into
Solid content is 30-50% marine alga concentrate.
Obtained marine alga concentrate is extracted as stated above, with abundant algal polysaccharides and other active materials, no
Only film forming, moisture retention are good, after auto-degradation also can as soil conditioning agent, strengthen soil fertility.
As the preferred of the technical program, the silk-fibroin powder is made by following methods：Silk is immersed into 6g/L carbon
Degumming 40min is carried out in sour potassium solution at 96-98 DEG C, and changes in 20min solution of potassium carbonate, wherein silk and carbonic acid
The solid-to-liquid ratio of potassium solution is (2-3) g/100mL；Silk is taken out and is eluted with water after degumming, is dried at 60 DEG C, then by silk
It is added in the calcium chloride solution that the concentration of 100-200 times of quality is 1-2wt% and 2-3h is dissolved at 94-96 DEG C, after dissolving certainly
So cooling, filters off solid impurity, filtrate is fitted into bag filter, and bag filter is positioned in water and dialysed 2-3 days, finally will dialysis
Silk-fibroin powder is made after liquid vacuum is dried in bag.
Silk-fibroin powder prepared by the above method, purity is high, and it is sticky good to be dissolved in after water, can strengthen after liquid-state mulch film film forming
Intensity, and silk-fibroin itself can also increase soil fertility as nutrient.
As the preferred of the technical program, the oxygenation agent is made by following methods：By beta-schardinger dextrin and water in mass ratio
1：Stirred after (1-2) mixing, make beta-schardinger dextrin in the pasty state, then by the beta-schardinger dextrin of pasty state and urea peroxide, SODIUM PERCARBONATE
One kind in mass ratio 1：(2-4) is mixed, and is dried in vacuo at 50-60 DEG C, and oxygenation agent is made after finally crushing.
Urea peroxide, SODIUM PERCARBONATE can discharge oxygen, after beta-schardinger dextrin and urea peroxide, SODIUM PERCARBONATE are combined, β-ring
Dextrin can be coated, and because urea peroxide, SODIUM PERCARBONATE are easily excessively dissolved in water and are heated and be decomposed, and have β-ring paste
The cladding of essence, can play protection, slow releasing function to urea peroxide, SODIUM PERCARBONATE to a certain extent, prevent urea peroxide, mistake
The too fast failure of sodium carbonate.And simultaneously after beta-schardinger dextrin is combined with water in the pasty state, it is easy to marine alga concentrate, polyvinyl alcohol, carboxylic first
The substances compatibles such as base cellulose, silk-fibroin powder.After liquid-state mulch film is watered sprinkling, oxygenation agent is penetrated into soil, is slowly released
Oxygen is put, timeliness is long, crop root part can be promoted to grow.
As the preferred of the technical program, the weeding particle is made by following methods：Herbicide is soluble in water obtained
Mass concentration is 1-2% weeding liquid, and nano-attapulgite is added into progress ultrasonic wave in weeding liquid disperses, then stands 1-2h
After be filtrated to get weeding particle.Herbicide is dissolved in after water weeding liquid is made, nano-attapulgite has very strong adsorptivity, will
It, which is distributed in weeding liquid, to be adsorbed to weeding liquid, together added with liquid-state mulch film other compositions after water, make weeding liquid
In herbicide stability more preferably, herbicide can be penetrated on soil after sprinkling, play herbicide effect, nano-attapulgite
Specific addition do not limit, it is ensured that its can saturation absorption weeding liquid.
As the preferred of the technical program, the herbicide is selected from alachlor, Acetochlor, butachlor, benazolin, paraquat
In one or more.
A kind of preparation method of black liquid state mulch film, step is：
1) pitch, is heated to 150-190 DEG C and is stirred.
2), by marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl two
Amine, tween, which is added in water, to stir, and is heated to 45-65 DEG C.
3) by step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.
It is compared with the prior art, the beneficial effects of the invention are as follows：The present invention black liquid state mulch film after use, in earth's surface
Film-formation result it is good, soil texture can be improved, water conservation, insulation, soil moisture conservation effect are outstanding, easily degraded, and with weeding, promote
The function of crop root system growth.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of black liquid state mulch film, it is characterised in that by the material composition of following masses part：100 parts of pitch, marine alga concentration
30 parts of liquid, 4 parts of polyvinyl alcohol, 4 parts of carboxymethyl cellulose, 4 parts of silk-fibroin powder, 4 parts of oxygenation agent, 1.5 parts of weeding particle, alkyl two
2 parts of amine, Tween-80 is 2 parts, 90 parts of water.
The marine alga concentrate is made by following methods：It is marine alga powder by marine alga chopping, then by marine alga powder
It is added to boiling 7.5min in the boiling water of its 150 times of quality；Then marine alga powder is taken out into draining, is added to 15 times of quality
Sodium pyrophosphate solution in, marine alga mucus is made in and ultrasonication 1.5h；Wherein the mass concentration of sodium pyrophosphate is 3%, is surpassed
Sonicated temperature is 67.5 DEG C, and ultrasonic power is 1000W, and ultrasonic frequency is 20kHz；Hydrogen-oxygen is added dropwise into marine alga mucus
Change sodium solution and be adjusted to neutrality, marine alga mucus is finally concentrated into the marine alga concentrate that solid content is 40%.
The silk-fibroin powder is made by following methods：Silk is immersed into 6g/L solution of potassium carbonate and carried out at 97 DEG C
Degumming 40min, and solution of potassium carbonate is changed in 20min, the wherein solid-to-liquid ratio of silk and solution of potassium carbonate is 2.5g/
100mL；Silk is taken out and is eluted with water after degumming, is dried at 60 DEG C, then be by the concentration that silk is added to 150 times of quality
Natural cooling after 2.5h, dissolving is dissolved in 1.5wt% calcium chloride solution at 95 DEG C, solid impurity is filtered off, filtrate is loaded
In bag filter, bag filter is positioned in water and dialysed 2.5 days, silk-fibroin is made after finally liquid vacuum in bag filter is dried
Powder.
The oxygenation agent is made by following methods：By beta-schardinger dextrin and water in mass ratio 1：Stirred after 1.5 mixing, make β-ring
Dextrin in the pasty state, then by the beta-schardinger dextrin of pasty state and urea peroxide in mass ratio 1：3 mix, and are dried in vacuo at 55 DEG C,
Oxygenation agent is made after finally crushing.
The weeding particle is made by following methods：By the butachlor of equivalent, paraquat obtained mass concentration soluble in water
For 1.5% weeding liquid, nano-attapulgite is added in weeding liquid and carries out ultrasonic wave and disperses, then stood and filtered after 1.5h
To weeding particle.
A kind of preparation method of black liquid state mulch film, step is：
1) pitch, is heated to 170 DEG C and is stirred.
2), by marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl two
Amine, tween, which is added in water, to stir, and is heated to 55 DEG C.
3), by step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.
Embodiment 2
A kind of black liquid state mulch film, it is characterised in that by the material composition of following masses part：80 parts of pitch, marine alga concentration
40 parts of liquid, 5 parts of polyvinyl alcohol, 5 parts of carboxymethyl cellulose, 5 parts of silk-fibroin powder, 3 parts of oxygenation agent, 1 part of weeding particle, alkyl diamine
1 part, Tween-80 is 1 part, 80 parts of water.
The marine alga concentrate is made by following methods：It is marine alga powder by marine alga chopping, then by marine alga powder
It is added to boiling 5min in the boiling water of its 100 times of quality；Then marine alga powder is taken out into draining, is added to 10 times of quality
In sodium pyrophosphate solution, and ultrasonication 1h, marine alga mucus is made；Wherein the mass concentration of sodium pyrophosphate is 3%, ultrasonic wave
Treatment temperature is 65 DEG C, and ultrasonic power is 800W, and ultrasonic frequency is 18kHz；Sodium hydroxide is added dropwise into marine alga mucus molten
Liquid is adjusted to neutrality, and marine alga mucus finally is concentrated into the marine alga concentrate that solid content is 30%.
The silk-fibroin powder is made by following methods：Silk is immersed into 6g/L solution of potassium carbonate and carried out at 96 DEG C
Degumming 40min, and solution of potassium carbonate is changed in 20min, the wherein solid-to-liquid ratio of silk and solution of potassium carbonate is 2g/100mL；
Silk is taken out and is eluted with water after degumming, is dried at 60 DEG C, then silk is added to the concentration of 100 times of quality for 1wt%
Calcium chloride solution in dissolve natural cooling after 2h, dissolving at 94 DEG C, filter off solid impurity, filtrate be fitted into bag filter,
Bag filter is positioned in water and dialysed 2 days, silk-fibroin powder is made after finally liquid vacuum in bag filter is dried.
The oxygenation agent is made by following methods：By beta-schardinger dextrin and water in mass ratio 1：Stirred after 1 mixing, make β-ring paste
Essence in the pasty state, then by the beta-schardinger dextrin of pasty state and SODIUM PERCARBONATE in mass ratio 1：2 mix, and are dried in vacuo at 50 DEG C, most
Oxygenation agent is made after crushing afterwards.
The weeding particle is made by following methods：By the Acetochlor of equivalent, benazolin obtained mass concentration soluble in water
For 1% weeding liquid, nano-attapulgite is added in weeding liquid and carries out ultrasonic wave and disperses, then stood to be filtrated to get after 1h and remove
Grass grain.
A kind of preparation method of black liquid state mulch film, step is：
1) pitch, is heated to 150 DEG C and is stirred.
2), by marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl two
Amine, tween, which is added in water, to stir, and is heated to 45 DEG C.
3), by step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.
Embodiment 3
A kind of black liquid state mulch film, it is characterised in that by the material composition of following masses part：120 parts of pitch, marine alga concentration
20 parts of liquid, 3 parts of polyvinyl alcohol, 3 parts of carboxymethyl cellulose, 3 parts of silk-fibroin powder, 5 parts of oxygenation agent, 2 parts of weeding particle, alkyl diamine
3 parts, Tween-60 is 3 parts, 100 parts of water.
The marine alga concentrate is made by following methods：It is marine alga powder by marine alga chopping, then by marine alga powder
It is added to boiling 10min in the boiling water of its 200 times of quality；Then marine alga powder is taken out into draining, is added to 20 times of quality
Sodium pyrophosphate solution in, marine alga mucus is made in and ultrasonication 2h；Wherein the mass concentration of sodium pyrophosphate is 3%, ultrasound
Ripple treatment temperature is 70 DEG C, and ultrasonic power is 1200W, and ultrasonic frequency is 22kHz；Sodium hydroxide is added dropwise into marine alga mucus
Solution is adjusted to neutrality, and marine alga mucus finally is concentrated into the marine alga concentrate that solid content is 50%.
The silk-fibroin powder is made by following methods：Silk is immersed into 6g/L solution of potassium carbonate and carried out at 98 DEG C
Degumming 40min, and solution of potassium carbonate is changed in 20min, the wherein solid-to-liquid ratio of silk and solution of potassium carbonate is 3g/100mL；
Silk is taken out and is eluted with water after degumming, is dried at 60 DEG C, then silk is added to the concentration of 200 times of quality for 2wt%
Calcium chloride solution in dissolve natural cooling after 3h, dissolving at 96 DEG C, filter off solid impurity, filtrate be fitted into bag filter,
Bag filter is positioned in water and dialysed 3 days, silk-fibroin powder is made after finally liquid vacuum in bag filter is dried.
The oxygenation agent is made by following methods：By beta-schardinger dextrin and water in mass ratio 1：Stirred after 2 mixing, make β-ring paste
Essence in the pasty state, then by the beta-schardinger dextrin of pasty state and urea peroxide in mass ratio 1：4 mix, and are dried in vacuo at 60 DEG C, most
Oxygenation agent is made after crushing afterwards.
The weeding particle is made by following methods：By the weeding liquid that alachlor obtained mass concentration soluble in water is 2%,
Nano-attapulgite is added in weeding liquid and carries out ultrasonic wave and disperses, then stands weeding particle is filtrated to get after 2h.
A kind of preparation method of black liquid state mulch film, step is：
1) pitch, is heated to 190 DEG C and is stirred.
2), by marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl two
Amine, tween, which is added in water, to stir, and is heated to 65 DEG C.
3), by step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.
Embodiment 4
A kind of black liquid state mulch film, it is characterised in that by the material composition of following masses part：90 parts of pitch, marine alga concentration
25 parts of liquid, 4 parts of polyvinyl alcohol, 5 parts of carboxymethyl cellulose, 3 parts of silk-fibroin powder, 4 parts of oxygenation agent, 2 parts of weeding particle, alkyl diamine
2 parts, Tween-60 is 2 parts, 95 parts of water.
The marine alga concentrate is made by following methods：It is marine alga powder by marine alga chopping, then by marine alga powder
It is added to boiling 6min in the boiling water of its 120 times of quality；Then marine alga powder is taken out into draining, is added to 12 times of quality
In sodium pyrophosphate solution, and ultrasonication 1h, marine alga mucus is made；Wherein the mass concentration of sodium pyrophosphate is 3%, ultrasonic wave
Treatment temperature is 70 DEG C, and ultrasonic power is 800W, and ultrasonic frequency is 21kHz；Sodium hydroxide is added dropwise into marine alga mucus molten
Liquid is adjusted to neutrality, and marine alga mucus finally is concentrated into the marine alga concentrate that solid content is 35%.
The silk-fibroin powder is made by following methods：Silk is immersed into 6g/L solution of potassium carbonate and carried out at 98 DEG C
Degumming 40min, and solution of potassium carbonate is changed in 20min, the wherein solid-to-liquid ratio of silk and solution of potassium carbonate is 3g/100mL；
Silk is taken out and is eluted with water after degumming, is dried at 60 DEG C, then be by the concentration that silk is added to 180 times of quality
Natural cooling after 2h, dissolving is dissolved in 1.5wt% calcium chloride solution at 95 DEG C, solid impurity is filtered off, filtrate is loaded saturating
Analyse in bag, bag filter is positioned in water and dialysed 3 days, silk-fibroin powder is made after finally liquid vacuum in bag filter is dried.
The oxygenation agent is made by following methods：By beta-schardinger dextrin and water in mass ratio 1：Stirred after 1.5 mixing, make β-ring
Dextrin in the pasty state, then by the beta-schardinger dextrin of pasty state and SODIUM PERCARBONATE in mass ratio 1：3 mix, and are dried in vacuo at 55 DEG C,
Oxygenation agent is made after finally crushing.
The weeding particle is made by following methods：By the Acetochlor, benazolin, paraquat of equivalent obtained matter soluble in water
The weeding liquid that concentration is 1.5% is measured, nano-attapulgite is added into progress ultrasonic wave in weeding liquid disperses, then stands after 1.5h
It is filtrated to get weeding particle.
A kind of preparation method of black liquid state mulch film, step is：
1) pitch, is heated to 160 DEG C and is stirred.
2), by marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl two
Amine, tween, which is added in water, to stir, and is heated to 50 DEG C.
3) by step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.
Soil surface is sprayed to after the black liquid state mulch film of the present invention is watered, by 600-800ml/m2Fountain height, with
Liquid-state mulch film is not sprayed to compare, and the soil moisture can be made to raise 6-8 DEG C, compared with plastic covering mulch film, soil water-retaining rate can be improved
12-18%.
Raw materials used in the present invention, equipment, is the conventional raw material, equipment of this area unless otherwise noted；In the present invention
Method therefor, is the conventional method of this area unless otherwise noted.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent transformation that technical spirit is made to above example, still fall within the technology of the present invention side
The protection domain of case.
Claims (4)
1. a kind of black liquid state mulch film, it is characterised in that by the material composition of following masses part：80-120 parts of pitch, marine alga is dense
20-40 parts of contracting liquid, 3-5 parts of polyvinyl alcohol, 3-5 parts of carboxymethyl cellulose, 3-5 parts of silk-fibroin powder, 3-5 parts of oxygenation agent, except grass grain
It is sub- 1-2 parts, 1-3 parts of alkyl diamine, 1-3 parts of tween, 80-100 parts of water；
The marine alga concentrate is made by following methods：It is marine alga powder by marine alga chopping, then adds marine alga powder
The boiling 5-10min into the boiling water of its 100-200 times of quality；Then marine alga powder is taken out into draining, is added to 10-20 times
In the sodium pyrophosphate solution of quality, and ultrasonication 1-2h, marine alga mucus is made；The mass concentration of wherein sodium pyrophosphate is
3%, ultrasonication temperature is 65-70 DEG C, and ultrasonic power is 800-1200W, and ultrasonic frequency is 18-22kHz；To marine alga
Sodium hydroxide solution is added dropwise in mucus and is adjusted to neutrality, marine alga mucus finally is concentrated into the marine alga that solid content is 30-50% concentrates
Liquid；
The oxygenation agent is made by following methods：By beta-schardinger dextrin and water in mass ratio 1：Stirred after (1-2) mixing, make β-ring paste
Essence in the pasty state, then by one kind in mass ratio 1 in the beta-schardinger dextrin of pasty state and urea peroxide, SODIUM PERCARBONATE：(2-4) mixing is stirred
Mix, be dried in vacuo at 50-60 DEG C, oxygenation agent is made after finally crushing；
The weeding particle is made by following methods：, will by the weeding liquid that herbicide obtained mass concentration soluble in water is 1-2%
Nano-attapulgite, which is added in weeding liquid, to carry out ultrasonic wave and disperses, then stands weeding particle is filtrated to get after 1-2h.
2. a kind of black liquid state mulch film as claimed in claim 1, it is characterised in that the silk-fibroin powder is by following methods system
：Silk is immersed into in 6g/L solution of potassium carbonate the progress degumming 40min at 96-98 DEG C, and carbon is changed in 20min
The solid-to-liquid ratio of sour potassium solution, wherein silk and solution of potassium carbonate is (2-3) g/100mL；Silk is taken out and is washed with water after degumming
Only, dried at 60 DEG C, then silk is added in the calcium chloride solution that the concentration of 100-200 times of quality is 1-2wt% in 94-
Natural cooling after 2-3h, dissolving is dissolved at 96 DEG C, solid impurity is filtered off, filtrate is fitted into bag filter, bag filter is positioned over
Dialysed 2-3 days in water, silk-fibroin powder is made after finally liquid vacuum in bag filter is dried.
3. a kind of black liquid state mulch film as claimed in claim 1, it is characterised in that the herbicide is selected from alachlor, second grass
One or more in amine, butachlor, benazolin.
4. a kind of preparation method of black liquid state mulch film as described in one of claim 1-3, it is characterised in that step is：
1) pitch, is heated to 150-190 DEG C and is stirred；
2), by marine alga concentrate, polyvinyl alcohol, carboxymethyl cellulose, silk-fibroin powder, oxygenation agent, weeding particle, alkyl diamine,
Tween, which is added in water, to stir, and is heated to 45-65 DEG C；
3), by step 1) and step 2) made from material it is well mixed after be ground, that is, black liquid state mulch film is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048779.3A CN105419365B (en) | 2016-01-25 | 2016-01-25 | A kind of black liquid state mulch film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048779.3A CN105419365B (en) | 2016-01-25 | 2016-01-25 | A kind of black liquid state mulch film and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105419365A CN105419365A (en) | 2016-03-23 |
| CN105419365B true CN105419365B (en) | 2017-10-24 |
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