CN106818896A - A kind of chlorpyrifos microcapsule containing quick lime and preparation method thereof - Google Patents
A kind of chlorpyrifos microcapsule containing quick lime and preparation method thereof Download PDFInfo
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- CN106818896A CN106818896A CN201611152154.8A CN201611152154A CN106818896A CN 106818896 A CN106818896 A CN 106818896A CN 201611152154 A CN201611152154 A CN 201611152154A CN 106818896 A CN106818896 A CN 106818896A
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- quick lime
- bentonite
- distilled water
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
-
- 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
- A01N25/26—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 in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
-
- 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
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
- A01N57/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing heterocyclic radicals
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon
-
- 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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
-
- 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
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Toxicology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Botany (AREA)
- Dispersion Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of chlorpyrifos microcapsule containing quick lime and preparation method thereof, it is characterised in that be made up of the raw material of following weight portion：Quick lime 34, chlopyrifos active compound 13 20, bentonite 30 50, potassium hydrogen phosphate 12, argy wormwood essential oil 38, urea 30 40, DTAC 12, neopelex 13, formaldehyde 60 70, appropriate hydrochloric acid, methyl alcohol 10 20, Sodium hydroxide q. s, maleic anhydride of styrene copolymerization sodium salt 25, Sodium Polyacrylate 23, distilled water 250 800；The present invention is introduced into organobentonite as carrier in microcapsules, can not only reach the purpose for delaying insoluble drug release, while increased the stability of micro-capsule suspension, extends the service life of agricultural chemicals；Coordinating the calcium lime powder of addition has the effect for improveing acid soil.
Description
Technical field
The present invention relates to a kind of pesticidal preparations, and in particular to a kind of containing the chlorpyrifos microcapsule of quick lime and its preparation side
Method.
Background technology
Microcapsule suspending agent is technology content highest one kind in current pesticides new formulation.It is made with macromolecular material
It is cyst wall, by chemistry, physics or physicochemical method, will be wrapped up as the pesticidal active substance of the capsule heart, forms one
Plant the microencapsulation with pellicle.And stably disperse them using certain concentration to be suspended in as in the water of continuous phase.
The pesticidal preparations of microencapsulation have the following advantage compared with regular dosage form agricultural chemicals：1. control release technic is introduced, is prolonged
The lasting period of agricultural chemicals has been grown, dispenser quantity and frequency has been reduced, the utilization rate of agricultural chemicals has been improved, pesticide dosage has been saved.2. agricultural chemicals is improved
Stability（Especially to biogenic pesticide）, it is to avoid because of environmental factor such as illumination, air, rainwater, soil, microorganism and other changes
Learn material and cause decomposition, oxidation, loss of active ingredient etc..Oil phase is separated from the water 3., some water unstables are difficult to
It is processed into the agricultural chemicals of microemulsion and aqueous emulsion（Such as part organophosphorus pesticide）, then microcapsules are suitably processed as, expand making for agricultural chemicals
With scope, the compounding capacity with other agricultural chemicals is improved.4. suppress the volatility of agricultural chemicals, shelter offending smell, reduce agricultural chemicals
Contact toxicity, toxicity on inhalation to people, animal, fish and other animals and the poisoning to crop, alleviate pressure of the agricultural chemicals to environment.
Zhao De exists《Lauxite prepares chlorpyrifos microcapsule and performance characterization》In, it is prepared for poison by wall material of Lauxite
Dead tick microcapsules, but also exist that dispersiveness, stability are not ideal enough, and slow release is not good enough, environmental protection, health, sustainable development reason
Read shortcoming.
The content of the invention
Thinking based on more than, the present invention is intended to provide a kind of stabilization, had good sustained release effect, good disinsection effect, while symbol
Cyclization guarantor, sustainable development idea.
The technical problems to be solved by the invention take following technical scheme to realize：
A kind of chlorpyrifos microcapsule containing quick lime, it is characterised in that be made up of the raw material of following weight portion：
Quick lime 3-4, chlopyrifos active compound 13-20, bentonite 30-50, potassium hydrogen phosphate 1-2, argy wormwood essential oil 3-8, urea 30-40,
DTAC 1-2, neopelex 1-3, formaldehyde 60-70, appropriate hydrochloric acid, methyl alcohol 10-20, hydrogen-oxygen
Change sodium appropriate, styrene-maleic anhydride copolymer sodium salt 2-5, Sodium Polyacrylate 2-3, distilled water 250-800；
The mass fraction of the formaldehyde is 30~40%, and the mass fraction of hydrochloric acid is 20-30%, and NaOH mass fraction is
20-40。
The preparation method of described a kind of chlorpyrifos microcapsule containing quick lime, it is characterised in that be by following steps system
Into：
A. bentonite suspension in fully dispersed to 100-200 parts distilled water of bentonite, will be made, dodecyl front three is added
Ammonium chloride, with the velocity fluctuation 3-5h, Zhi Hou of 130-160r/min in the thermostatic control oscillator vibration that temperature is 50-80 DEG C
10-20min is centrifuged under the rotating speed of 2000-4000 r/min, filters, drying obtains organobentonite；
B. step a gained organobentonites are dispersed in 50-100 parts of distilled water again and are made suspension, chlopyrifos is former
Medicine, potassium hydrogen phosphate, argy wormwood essential oil dispersion in methyl alcohol, are added in above-mentioned suspension, in 20-40 DEG C of thermostatic control oscillator vibration
On with the velocity fluctuation 3-5h of 130-160r/min, with distillation water washing 2-3 time after vacuum filtration, drying obtains final product that to carry medicine organic
Bentonite；
C. quick lime, neopelex are sufficiently mixed, are then crushed material, make its mesh number be 100-200
Mesh, dries, and obtains final product quick lime additive；
D. urea, formaldehyde and 100-150 part of distilled water is mixed, is 8-9 with NaOH regulation system pH value, be warming up to
65~70 DEG C, stirring reaction 40-80min obtains the Lauxite prepolymer aqueous solution；
E. medicine organobentonite, step c gained quick limes is carried to addition step b gained in the step d gained prepolymer aqueous solution to add
Plus agent, styrene-maleic anhydride copolymer sodium salt and Sodium Polyacrylate are added as emulsifying agent and dispersant, 1300-1600 r/
After the rotating speed stirring 10-30min of min, reduce and add hydrochloric acid regulation in rotating speed to 700-900 r/min, 40-80min in batches
System pH values are 1.5-2.5；Rotating speed is progressively down to 100-300 r/min, is progressively warming up to 50-80 DEG C of solidification cyst wall, instead
After answering 30-60min, it is neutrality to add NaOH regulation system pH values, obtains final product chlopyrifos microcapsule suspending agent.
The beneficial effects of the invention are as follows：Using situ aggregation method, microencapsulation is carried out to chlopyrifos using Lauxite, can
To be largely overcoming organic solvent pollution environment, waste of resource that the usually used missible oil formulation of chlopyrifos brought
Problem, while extend the lasting period, the effective rate of utilization that improves agricultural chemicals, the decomposition for avoiding agricultural chemicals are lost in, mitigate toxicity and
Poisoning；Bentonite is modified with DTAC, reduces bentonitic hydrophily, it is right so as to improve its
The adsorbance of hydrophobicity chlopyrifos molecule and argy wormwood essential oil；It is introduced into organobentonite as carrier in microcapsules, not only can be with
The purpose for delaying insoluble drug release is reached, while increased the stability of micro-capsule suspension, extends the service life of agricultural chemicals；It is another
Aspect, argy wormwood essential oil can play important synergistic effect in chlopyrifos, reduce Pesticide use amount, reach environmental protection, sustainable development
The purpose of exhibition；Coordinating the calcium lime powder of addition has the effect for improveing acid soil.
Specific embodiment
Specific embodiment of the invention is further described with reference to embodiment.
Embodiment
A kind of chlorpyrifos microcapsule containing quick lime, it is characterised in that be made up of the raw material of following weight portion：
Quick lime 4, chlopyrifos active compound 20, bentonite 50, potassium hydrogen phosphate 2, argy wormwood essential oil 8, urea 40, trimethyl chlorine
Change ammonium 2, neopelex 3, formaldehyde 70, appropriate hydrochloric acid, methyl alcohol 20, Sodium hydroxide q. s, phenylethylene-maleic anhydride is common
Poly- sodium salt 5, Sodium Polyacrylate 3, distilled water 800；
The mass fraction of the formaldehyde is 30~40%, and the mass fraction of hydrochloric acid is 20-30%, and NaOH mass fraction is
20-40。
The preparation method of described a kind of chlorpyrifos microcapsule containing quick lime, it is characterised in that be by following steps system
Into：
A. bentonite suspension in fully dispersed to 100-200 parts distilled water of bentonite, will be made, dodecyl front three is added
Ammonium chloride, with the velocity fluctuation 3-5h, Zhi Hou of 130-160r/min in the thermostatic control oscillator vibration that temperature is 50-80 DEG C
10-20min is centrifuged under the rotating speed of 2000-4000 r/min, filters, drying obtains organobentonite；
B. step a gained organobentonites are dispersed in 50-100 parts of distilled water again and are made suspension, chlopyrifos is former
Medicine, potassium hydrogen phosphate, argy wormwood essential oil dispersion in methyl alcohol, are added in above-mentioned suspension, in 20-40 DEG C of thermostatic control oscillator vibration
On with the velocity fluctuation 3-5h of 130-160r/min, with distillation water washing 2-3 time after vacuum filtration, drying obtains final product that to carry medicine organic
Bentonite；
C. quick lime, neopelex are sufficiently mixed, are then crushed material, make its mesh number be 100-200
Mesh, dries, and obtains final product quick lime additive；
D. urea, formaldehyde and 100-150 part of distilled water is mixed, is 8-9 with NaOH regulation system pH value, be warming up to
65~70 DEG C, stirring reaction 40-80min obtains the Lauxite prepolymer aqueous solution；
E. medicine organobentonite, step c gained quick limes is carried to addition step b gained in the step d gained prepolymer aqueous solution to add
Plus agent, styrene-maleic anhydride copolymer sodium salt and Sodium Polyacrylate are added as emulsifying agent and dispersant, 1300-1600 r/
After the rotating speed stirring 10-30min of min, reduce and add hydrochloric acid regulation in rotating speed to 700-900 r/min, 40-80min in batches
System pH values are 1.5-2.5；Rotating speed is progressively down to 100-300 r/min, is progressively warming up to 50-80 DEG C of solidification cyst wall, instead
After answering 30-60min, it is neutrality to add NaOH regulation system pH values, obtains final product chlopyrifos microcapsule suspending agent.
Performance test data of the invention is：5d burst size≤37.32% before microcapsules.
Claims (2)
1. a kind of chlorpyrifos microcapsule containing quick lime, it is characterised in that be made up of the raw material of following weight portion：
Quick lime 3-4, chlopyrifos active compound 13-20, bentonite 30-50, potassium hydrogen phosphate 1-2, argy wormwood essential oil 3-8, urea 30-40,
DTAC 1-2, neopelex 1-3, formaldehyde 60-70, appropriate hydrochloric acid, methyl alcohol 10-20, hydrogen-oxygen
Change sodium appropriate, styrene-maleic anhydride copolymer sodium salt 2-5, Sodium Polyacrylate 2-3, distilled water 250-800；
The mass fraction of the formaldehyde is 30~40%, and the mass fraction of hydrochloric acid is 20-30%, and NaOH mass fraction is
20-40。
2. the preparation method of a kind of chlorpyrifos microcapsule containing quick lime according to claim 1, it is characterised in that be by
Following steps are made：
A. bentonite suspension in fully dispersed to 100-200 parts distilled water of bentonite, will be made, dodecyl front three is added
Ammonium chloride, with the velocity fluctuation 3-5h, Zhi Hou of 130-160r/min in the thermostatic control oscillator vibration that temperature is 50-80 DEG C
10-20min is centrifuged under the rotating speed of 2000-4000 r/min, filters, drying obtains organobentonite；
B. step a gained organobentonites are dispersed in 50-100 parts of distilled water again and are made suspension, chlopyrifos is former
Medicine, potassium hydrogen phosphate, argy wormwood essential oil dispersion in methyl alcohol, are added in above-mentioned suspension, in 20-40 DEG C of thermostatic control oscillator vibration
On with the velocity fluctuation 3-5h of 130-160r/min, with distillation water washing 2-3 time after vacuum filtration, drying obtains final product that to carry medicine organic
Bentonite；
C. quick lime, neopelex are sufficiently mixed, are then crushed material, make its mesh number be 100-200
Mesh, dries, and obtains final product quick lime additive；
D. urea, formaldehyde and 100-150 part of distilled water is mixed, is 8-9 with NaOH regulation system pH value, be warming up to
65~70 DEG C, stirring reaction 40-80min obtains the Lauxite prepolymer aqueous solution；
E. medicine organobentonite, step c gained quick limes is carried to addition step b gained in the step d gained prepolymer aqueous solution to add
Plus agent, styrene-maleic anhydride copolymer sodium salt and Sodium Polyacrylate are added as emulsifying agent and dispersant, 1300-1600 r/
After the rotating speed stirring 10-30min of min, reduce and add hydrochloric acid regulation in rotating speed to 700-900 r/min, 40-80min in batches
System pH values are 1.5-2.5；Rotating speed is progressively down to 100-300 r/min, is progressively warming up to 50-80 DEG C of solidification cyst wall, instead
After answering 30-60min, it is neutrality to add NaOH regulation system pH values, obtains final product chlopyrifos microcapsule suspending agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152154.8A CN106818896A (en) | 2016-12-14 | 2016-12-14 | A kind of chlorpyrifos microcapsule containing quick lime and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152154.8A CN106818896A (en) | 2016-12-14 | 2016-12-14 | A kind of chlorpyrifos microcapsule containing quick lime and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106818896A true CN106818896A (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611152154.8A Withdrawn CN106818896A (en) | 2016-12-14 | 2016-12-14 | A kind of chlorpyrifos microcapsule containing quick lime and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362590A (en) * | 2011-11-11 | 2012-02-29 | 中国农业科学院植物保护研究所 | Microencapsulated pesticide preparation |
-
2016
- 2016-12-14 CN CN201611152154.8A patent/CN106818896A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362590A (en) * | 2011-11-11 | 2012-02-29 | 中国农业科学院植物保护研究所 | Microencapsulated pesticide preparation |
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Application publication date: 20170613 |
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