CN108684690A - A kind of Biodegradable material carries pesticide microballoon suspending agent and preparation method thereof - Google Patents
A kind of Biodegradable material carries pesticide microballoon suspending agent and preparation method thereof Download PDFInfo
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- CN108684690A CN108684690A CN201810839806.8A CN201810839806A CN108684690A CN 108684690 A CN108684690 A CN 108684690A CN 201810839806 A CN201810839806 A CN 201810839806A CN 108684690 A CN108684690 A CN 108684690A
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- Prior art keywords
- microballoon
- suspending agent
- preparation
- pesticide
- emamectin benzoate
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/12—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution
- B01J13/125—Making microcapsules or microballoons by phase separation removing solvent from the wall-forming material solution by evaporation of the solvent
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of Biodegradable materials to carry pesticide microballoon suspending agent and preparation method thereof, the present invention prepares emamectin benzoate sustained-release micro-spheres using cheap biodegradable material poly (propylene carbonate) PPC and polylactic acid PLA blend as wall material, and then is aided with the emamectin benzoate microballoon suspending agent that wetting dispersing agent, thickener, antifreezing agent and water prepare performance stabilization.Its raw material components is:Emamectin benzoate 45~120g/L of microballoon, 35~60g/L of wetting dispersing agent, 2.4~5g/L of thickener aluminium-magnesium silicate and sodium alginate, 25~50g/L of antifreeze glycol, surplus is water.Compound wall materials cost reduction used in the present invention, environment friendly improve, after being administered to field can natural biology be degraded to carbon dioxide and water, reduce a large amount of uses because of the non-biodegradables wall material such as polyureas environment caused by harm good with environment compatibility.
Description
Technical field
The invention belongs to A01N biocides, pesticide processing fields, and in particular to a kind of to utilize drop polylactic acid PLA completely/poly-
Propylene carbonate PPC blended compound materials prepare emamectin-benzoate microballoon suspending agent.
Background technology
Emamectin-benzoate(Abbreviation emamectin benzoate)It is one synthesized since fermented product AVERMECTIN B1
The new and effective semisynthetic antibiotics insecticide of kind, it has the characteristics of ultra high efficiency, low toxicity, low-residual, nuisanceless equal biological pesticides.
But by acidity, the factors such as excessively high or too low, illumination are influenced, and emamectin benzoate is easy to degrade.To make emamectin benzoate be protected using process
Good stability and lasting effect are held, drug effect is given full play to, sustained-release micro-spheres are made in the emamectin benzoate of easy photodissociation, can delay to drop significantly
Rate is solved, while reducing safety and environmental problem caused by during the conventional dosage forms such as missible oil, pulvis are in production and use.
It is currently reported to use solvent evaporated method, using biological degradable material polylactic acid PLA as coating material, system
Standby pesticide microballoon suspending agent.Using biological degradable material PLA as coating material, the biology such as polyurethane, polyureas can be alleviated not
Degradability substance is endangered as wall material caused by environment.But the energy consumption in lactic acid price and its polymerization technique determines
The synthesis cost of PLA is higher, and price is also difficult to be received by market, and Biodegradation Times are longer.Poly (propylene carbonate) (PPC)
It is by propylene oxide and CO2Amorphous Biodegradable high-molecular obtained by copolymerization, the PPC after industrialization is cheap, is considered
It is a kind of " green material ".To reduce cost, and the environmental-friendly performance of wall material is improved, PPC is blended with PLA to obtain the present invention
The two advantage improves wall material biodegradability and balling property, prepares using poly (propylene carbonate) PPC and PLA blend films as wall material
Emamectin benzoate microballoon.
Invention content
The purpose of the present invention is to provide a kind of Biodegradable materials to carry pesticide microballoon suspending agent and preparation method thereof, adopts
Obtained compound wall materials are blended with polylactic acid PLA, poly (propylene carbonate) PPC and prepare emamectin benzoate microballoon, it is total by changing two kinds of wall materials
Mixed ratio, not only controllable drug bearing microsphere slow-release capability, improves the performance of wall material, reduces the grain size of microballoon, improves drugloading rate, together
When can reduce the cost, improve its environment friendly, to meet the needs of different processing technologys.But because of both wall material viscosity, close
Degree, surface tension, crystal structure etc. characteristic are different, need to use the suspending agent formula different from PLA microballoons to reach preferable
Suspension effect.To solve the production because the layering of microballoon suspending agent, caking, livering are brought, using upper problems.
Purpose to realize the present invention adopts the following technical scheme that:
The present invention is with cheap biodegradable material poly (propylene carbonate)(PPC)It is wall material with polylactic acid PLA blend
Emamectin benzoate sustained-release micro-spheres are prepared, and then are aided with the emamectin benzoate that wetting dispersing agent, thickener, antifreezing agent and water prepare performance stabilization
Microballoon suspending agent.
The concentration of its raw material components and each component includes:Emamectin benzoate 45~120g/L of microballoon, 35~60g/ of wetting dispersing agent
L, thickener aluminium-magnesium silicate+2.4~5g/L of sodium alginate, 25~50g/L of antifreeze glycol, surplus is water.
The Biodegradable material carries the preparation method of pesticide microballoon suspending agent, including steps are as follows:
(1)The preparation of compound wall materials:PLA/PPC blends are prepared using solution casting method.It is molten with chloroform or dichloromethane difference
PLA and PPC is solved, PLA is 1: 9~9: l with PPC mass ratioes, is configured to the solution of 8wt% concentration, is then blended, then is stirred with magnetic force
Device uniform stirring 5 hours or more is mixed, casting film is 48 hours dry in vacuum drying chamber at room temperature, is placed in standby in drier
With.
(2)The preparation of emamectin benzoate microballoon:Using emamectin benzoate as core material;By core material and step(1)Obtained wall material is in mass ratio
For 1: 3~1: l mixing, recyclable volatile organic solvent is then added(One kind in dichloromethane, chloroform or two
Kind), equal-volume acetone is added after being dissolved in ice-water bath, obtains drug containing oleagenous suspension, wall material in drug containing oleagenous suspension
Mass concentration is 60 ~ 100mg/mL;Drug containing oleagenous suspension is added in 5~15g/L gelatin solutions and is uniformly mixed, in high speed point
It dissipates the shear velocity in device with 6000~7000rpm and emulsifies 0.5~5min acquisition colostric fluids(Oil-water ratio in colostric fluid contains medicine oil
The grease volume ratio of phase suspension and 5~15g/L gelatin solutions is 1: 20 ~ 30);Colostric fluid is 1: 3 ~ 1: 5 by volume with water
Mixing, with 700~900rpm magnetic agitations to organic solvent-free taste under the conditions of being protected from light, reaction temperature is 25~28 DEG C;It filters, 38
The drying of DEG C vacuum drying chamber is to get emamectin benzoate microballoon.
(3)The preparation of suspending agent:By emamectin benzoate microballoon, wetting dispersing agent(Castor oil polyoxyethylene ether EL80+ agriculture breasts
603), thickener(Aluminium-magnesium silicate+sodium alginate), antifreeze glycol and water mixing, stir evenly after ultrasound 15min to get
Emamectin benzoate effective content 2~5wt% microballoon suspending agents.
The present invention has the following advantages compared with the prior art:
Traditional pesticide microball preparation mostly uses single substance as microballoon wall material, and how uncontrollable microsphere sustained-release performance is, easily causes micro-
Ball Release of core material is too fast or excessively slow.The present invention, as compound wall materials, is led to using biodegradability Substance P LA/PPC intermingling materials
Cross control PLA/PPC ratios, it can be achieved that pesticide drug bearing microsphere obtained release the drug ability, grain size, drugloading rate control.It is used multiple
Combine harmoniously material cost reduction, environment friendly improve, after being administered to field can natural biology be degraded to carbon dioxide and water, with ring
Border good compatibility endangers caused by reducing a large amount of uses because of the non-biodegradables wall material such as polyureas environment.Suspension agent aid
Screening contribute to the present invention emamectin benzoate microballoon suspending agent have preferable practical performance and promotional value.
Description of the drawings
1000 times of microimaging figures of electron scanning Electronic Speculum after Fig. 1 PPC/PLA blend films film forming.
1000 times of microimaging figures of electron scanning Electronic Speculum after Fig. 2 PPC/PLA blend films are biodegradable in the soil.
Fig. 3 biodegradable emamectin-benzoate finished microballoon products photos.
Fig. 4 biodegradable emamectin-benzoate microballoon suspending agents.
Fig. 5 biodegradable emamectin-benzoate microballoon electron scanning 8000 times of microimagings of Electronic Speculum
Figure.
10000 times of the electron scanning Electronic Speculum of Fig. 6 biodegradable emamectin-benzoate microballoons is micro- to be taken the photograph
As figure.
Specific implementation mode
Further to disclose rather than the present invention is limited, the present invention is described in further detail below in conjunction with example.
Further to disclose rather than the present invention is limited, the present invention is described in further detail below in conjunction with example.
The preparation method of 1 5wt% emamectin benzoate microballoon suspending agents of embodiment is as follows:
1)The preparation of emamectin benzoate microballoon:It mixes, is added by 0.5g emamectin benzoates active compound, with 0.5g PLA/PPC films (mass ratio 4/6)
In 4mL dichloromethane, 4mL acetone mixings are added after ice-water bath dissolving, is configured to drug containing oleagenous suspension, is added to 200mL
It is uniformly mixed in the gelatin solution of 12.5g/L, colostrum is obtained with the shear velocity of 7000rpm emulsification 0.5min in high speed disperser
Colostric fluid is added in 1000mL water by liquid, with 700rpm magnetic agitations under the conditions of being protected from light, until organic solvent-free taste, reaction
Temperature is 27 DEG C;It filters, 38 DEG C of drying are to get emamectin benzoate microballoon;
2)The preparation of microballoon suspending agent:Take emamectin benzoate microsphere powder, the wetting dispersing agent that 11g is dried(2.6g castor oil polyoxy second
Alkene ether EL80+3.4g agriculture breasts 603), thickener(0.33g aluminium-magnesium silicate+0.16g sodium alginates), 5g antifreeze glycols, use
Water supplies 100g, and ultrasound 15min is to get the active ingredient 5wt% emamectin benzoates microballoon suspending agent after stirring evenly;
Every 667 square metres with 5wt% emamectin benzoate microballoon 40 ~ 80mL of suspending agent, are watered 170 ~ 400kg even sprayings, can prevent cross
The pests such as flower section crop diamondback moth, beet armyworm, prodenia litura, maduca sexta, vegetable powder snout moth's larva, bollworm.
The preparation method of 2 3wt% emamectin benzoate microballoon suspending agents of embodiment is as follows:
1)The preparation of emamectin benzoate microballoon:It mixes, adds by 0.32g emamectin benzoates active compound, with 0.48g PLA/PPC films (mass ratio 5/5)
Enter in 4mL dichloromethane, 4mL acetone mixings are added after ice-water bath dissolving, is configured to drug containing oleagenous suspension, is added to 200mL
It is uniformly mixed in the gelatin solution of 12g/L, colostric fluid is obtained with the shear velocity of 6000rpm emulsification 1min in high speed disperser,
Colostric fluid is added in 800mL water, with 750rpm magnetic agitations under the conditions of being protected from light, until organic solvent-free taste, reaction temperature
It is 26 DEG C;It filters, 38 DEG C of drying are to get emamectin benzoate microballoon;
2)The preparation of microballoon suspending agent:Take emamectin benzoate microsphere powder, the wetting dispersing agent that 8.5g is dried(2g castor oil polyoxyethylenes
Ether EL80+3g agriculture breasts 603), thickener(0.33g aluminium-magnesium silicate+0.08g sodium alginates), 3g antifreeze glycols, mended with water
Ultrasound 15min is to get the active ingredient 3wt% emamectin benzoates microballoon suspending agent after sufficient 100g, 1000r/m magnetic agitation 15min;
Every 667 square metres with 3wt% emamectin benzoate microballoon 66 ~ 133mL of suspending agent, are watered 170 ~ 400kg even sprayings, can prevent ten
The pests such as Zi Hua sections crop diamondback moth, beet armyworm, prodenia litura, maduca sexta, vegetable powder snout moth's larva, bollworm.
The preparation method of 3 2wt% emamectin benzoate microballoon suspending agents of embodiment is as follows:
1)The preparation of emamectin benzoate microballoon:It mixes, is added by 0.25g emamectin benzoates active compound, with 0.5g PLA/PPC films (mass ratio 6/4)
In 4mL dichloromethane, 4mL acetone mixings are added after ice-water bath dissolving, is configured to drug containing oleagenous suspension, is added to 200mL
It is uniformly mixed in the gelatin solution of 10g/L, colostric fluid is obtained with the shear velocity of 6500rpm emulsification 1min in high speed disperser,
Colostric fluid is added in 800mL water, with 800rpm magnetic agitations under the conditions of being protected from light, until organic solvent-free taste, reaction temperature
It is 28 DEG C;It filters, 38 DEG C of drying are to get emamectin benzoate microballoon;
2)The preparation of microballoon suspending agent:Take emamectin benzoate microsphere powder, the wetting dispersing agent that 7g is dried(1.3g castor oil polyoxyethylene
Ether EL80+2.5g agriculture breasts 603), thickener(Aluminium-magnesium silicate+sodium alginate), 4g antifreeze glycols, supply 100g with water,
Ultrasound 15min is to get the 2wt% emamectin benzoates microballoon suspending agent after 1000r/m magnetic agitations 15min;
Every 667 square metres with 2wt% emamectin benzoate microballoon 100 ~ 200mL of suspending agent, are watered 170 ~ 400kg even sprayings, can prevent ten
The pests such as Zi Hua sections crop diamondback moth, beet armyworm, prodenia litura, maduca sexta, vegetable powder snout moth's larva, bollworm.
It is key factor that can the microballoon suspending agent suspensibility and every other indexs qualified that wetting dispersing agent, which is selected,
The present invention screens wetting dispersing agent using flow point method, and final choice agriculture breast 603 and castor oil polyoxyethylene ether EL80 is multiple
With the results are shown in Table 1.
1 different wetting dispersant flow point value of table
The present invention has selected the mixing of aluminium-magnesium silicate and sodium alginate after a variety of thickeners common on the market of comprehensive consideration
Good fluidity can be obtained in object, stands not stratified, the excellent product of dispersion situation.
The emamectin benzoate microballoon suspending agent of the present invention respectively at room temperature (25 ± 2 DEG C), heat storage (54 ± 2) DEG C and cold storage (0 ±
2) quality analysis results are shown in Table 2 DEG C after two weeks.
The cold storage of 2 microballoon suspending agent of table and heat storage stability
3 emamectin benzoate microballoon suspending agent quality analysis results of table
Various chemical raw materials used in the present invention are common chemicals, are bought by market.
For the emamectin benzoate microballoon suspending agent of the present invention using diamondback moth as experimental subjects, the potting dish lasting period the results are shown in Table 4.
4 different proportion blend film of the table made 5wt% emamectin benzoates microballoon suspending agent potting dish lasting period measures
PLA/PPC mass ratioes are 50/50 using blend film obtained by solution casting method in Fig. 1.
PLA/PPC mass ratioes are 50/50 using blend film obtained by solution casting method in Fig. 2, are embedded in pakchoi Tanaka, and new
Film obviously becomes larger compared to membrane structure hole, Mass lost.
PLA is wall material in Fig. 3, and core material is than 1:1, high speed shear condition 7000rpm, 0.5min.
At fine powdered.
Specific operating condition in Fig. 4:Take emamectin benzoate microsphere powder, the wetting dispersing agent that 7g is dried(1.3g castor oil is poly-
Ethylene oxide ether EL80+2.5g agriculture breasts 603), thickener(Aluminium-magnesium silicate+sodium alginate), 4g antifreeze glycols, supplied with water
Ultrasound 15min is to get the 2% emamectin benzoate microballoon suspending agent after 100g, 2000r/min magnetic agitation 15min.
Operating condition in Fig. 5:PLA/PPC mass ratioes are 50/50, and core material is than 1:1, high speed shear condition 7000rpm,
0.5min.The microsphere features smooth surface of gained, balling-up are good.
Operating condition in Fig. 6:PLA/PPC mass ratioes are 50/50, and core material is than 1:1, high speed shear condition 7000rpm,
0.5min.The microsphere features smooth surface of gained, balling-up is good, even particle size distribution.
The emamectin benzoate microballoon suspending agent and preparation method thereof of the present invention is described by specific embodiment, this
Field technology personnel can use for reference the appropriate feed change of present disclosure, and the links such as process conditions realize corresponding other mesh
, correlation changes all without departing from present disclosure, and all similar substitutions and modifications carry out those skilled in the art
Say it is it will be apparent that being considered as being included within the scope of the present invention.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (9)
1. a kind of Biodegradable material carries pesticide microballoon suspending agent, it is characterised in that:The concentration of its raw material components and each component
Including:Emamectin benzoate 45~120g/L of microballoon, 35~60g/L of wetting dispersing agent, 2.4~5g/L of thickener, antifreeze glycol 25
~50g/L, surplus are water.
2. a kind of Biodegradable material according to claim 1 carries pesticide microballoon suspending agent, it is characterised in that:Wetting point
Powder is castor oil polyoxyethylene ether EL80 and agriculture breast 603 in mass ratio 1:2~4:5 mixing.
3. a kind of Biodegradable material according to claim 1 carries pesticide microballoon suspending agent, it is characterised in that:
Thickener is aluminium-magnesium silicate and sodium alginate in mass ratio 2:1~4:1 mixing.
4. a kind of preparing the method for carrying pesticide microballoon suspending agent such as claim 1 ~ 3 any one of them Biodegradable material,
It is characterized in that:Including steps are as follows:
(1)The preparation of compound wall materials:PLA/PPC blends are prepared using solution casting method, it is molten with chloroform or dichloromethane difference
PLA and PPC is solved, is then blended, then with magnetic stirring apparatus uniform stirring 5 hours or more, casting film, at room temperature in vacuum drying
It is 48 hours dry in case, it is placed in spare in drier.
(2)The preparation of emamectin benzoate microballoon:Using emamectin benzoate as core material;By core material and step(1)Wall material mixing is made, is then added
Recyclable volatile organic solvent is added equal-volume acetone after being dissolved in ice-water bath, obtains drug containing oleagenous suspension, drug containing
The mass concentration of wall material is 60 ~ 100mg/mL in oleagenous suspension;Drug containing oleagenous suspension is added to 5~15g/L gelatin solutions
In be uniformly mixed, in high speed disperser with the shear velocity of 6000~7000rpm emulsify 0.5~5min obtain colostric fluid;Just
Lotion is mixed with water again, with 700~900rpm magnetic agitations to organic solvent-free taste, reaction temperature 25 under the conditions of being protected from light
~28 DEG C;It filters, 38 DEG C of vacuum drying chamber drying are to get emamectin benzoate microballoon.
(3)The preparation of suspending agent:Emamectin benzoate microballoon, wetting dispersing agent, thickener, antifreeze glycol and water are mixed, stirring
Ultrasound 15min, obtains emamectin benzoate effective content 2~5wt% microballoon suspending agents after uniformly.
5. Biodegradable material according to claim 4 carries the preparation method of pesticide microballoon suspending agent, it is characterised in that:
Step(1)Middle PLA is 1: 9~9: l with PPC mass ratioes, is each formulated into the solution of 8wt% concentration.
6. Biodegradable material according to claim 4 carries the preparation method of pesticide microballoon suspending agent, it is characterised in that:
Core material and step(1)Obtained wall material is 1: 3~1: l mixing in mass ratio.
7. Biodegradable material according to claim 4 carries the preparation method of pesticide microballoon suspending agent, it is characterised in that:
The recyclable volatile organic solvent is one or both of dichloromethane, chloroform.
8. Biodegradable material according to claim 4 carries the preparation method of pesticide microballoon suspending agent, it is characterised in that:
Step(2)The grease volume ratio of drug containing oleagenous suspension and 5~15g/L gelatin solutions is 1: 20 ~ 30 in colostric fluid.
9. Biodegradable material according to claim 4 carries the preparation method of pesticide microballoon suspending agent, it is characterised in that:
Step(2)Middle colostric fluid mixes for 1: 3 ~ 1: 5 by volume with water.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111096318A (en) * | 2019-12-30 | 2020-05-05 | 虞毅 | Sustained-release gel material with double-effect drug-loading function, preparation method and application |
CN113198971A (en) * | 2021-05-18 | 2021-08-03 | 松山湖材料实验室 | Suspending agent, application thereof and coating |
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CN102696640A (en) * | 2012-06-15 | 2012-10-03 | 福建农林大学 | Emamectin benzoate polylactic acid microsphere suspension and preparation method thereof |
CN104886091A (en) * | 2015-06-30 | 2015-09-09 | 福建农林大学 | Biodegradable emamectin benzoate microsphere |
WO2017061959A1 (en) * | 2014-12-04 | 2017-04-13 | Entovest İlaç Κi̇μυα Ve Teknoloji̇ Araştirma Merkezi̇ Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | A pesticide composition comprising a combination of bifenthrin and abamectin molecules in capsule form |
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2018
- 2018-07-27 CN CN201810839806.8A patent/CN108684690A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102696640A (en) * | 2012-06-15 | 2012-10-03 | 福建农林大学 | Emamectin benzoate polylactic acid microsphere suspension and preparation method thereof |
WO2017061959A1 (en) * | 2014-12-04 | 2017-04-13 | Entovest İlaç Κi̇μυα Ve Teknoloji̇ Araştirma Merkezi̇ Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | A pesticide composition comprising a combination of bifenthrin and abamectin molecules in capsule form |
CN104886091A (en) * | 2015-06-30 | 2015-09-09 | 福建农林大学 | Biodegradable emamectin benzoate microsphere |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111096318A (en) * | 2019-12-30 | 2020-05-05 | 虞毅 | Sustained-release gel material with double-effect drug-loading function, preparation method and application |
CN113198971A (en) * | 2021-05-18 | 2021-08-03 | 松山湖材料实验室 | Suspending agent, application thereof and coating |
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