CN106719864A - A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof - Google Patents

A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof Download PDF

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Publication number
CN106719864A
CN106719864A CN201611151908.8A CN201611151908A CN106719864A CN 106719864 A CN106719864 A CN 106719864A CN 201611151908 A CN201611151908 A CN 201611151908A CN 106719864 A CN106719864 A CN 106719864A
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essential oil
carrier
argy wormwood
wormwood essential
copolymer
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CN201611151908.8A
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Chinese (zh)
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严帝
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Individual
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/02Biocides, 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
    • A01N25/04Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/18Vapour or smoke emitting compositions with delayed or sustained release
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/26Biocides, 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
    • A01N25/28Microcapsules or nanocapsules
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N57/00Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/10Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
    • A01N57/16Biocides, 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
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N65/00Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08Magnoliopsida [dicotyledons]
    • A01N65/12Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon

Abstract

The invention discloses a kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof, it is characterised in that be made up of the raw material of following weight portion:Succinic acid 35, chlopyrifos active compound 15 25, bentonite 30 50, butanediol 35, argy wormwood essential oil 38, urea 30 40, DTAC 12, lactic acid 0.6 1.5, 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;Copolymer is introduced as common carrier, the drugloading rate of microcapsules is significantly improved.

Description

A kind of copolymer is used as the argy wormwood essential oil synergy chlorpyrifos microcapsule of carrier and its preparation Method
Technical field
The present invention relates to a kind of pesticidal preparations, and in particular to a kind of copolymer as carrier argy wormwood essential oil synergy chlopyrifos Microcapsules and preparation method thereof.
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 copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule, it is characterised in that be by following weight portion Raw material is made:
Succinic acid 3-5, chlopyrifos active compound 15-25, bentonite 30-50, butanediol 3-5, argy wormwood essential oil 3-8, urea 30-40, ten Dialkyl group trimethyl ammonium chloride 1-2, lactic acid 0.6-1.5, formaldehyde 60-70, appropriate hydrochloric acid, methyl alcohol 10-20, Sodium hydroxide q. s, 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。
A kind of described copolymer as the argy wormwood essential oil synergy chlorpyrifos microcapsule of carrier preparation method, its feature exists In being made up of following steps:
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, the dissolving of argy wormwood essential oil in methyl alcohol, are added in above-mentioned suspension, with 130- in 20-40 DEG C of thermostatic control oscillator vibration The velocity fluctuation 3-5h of 160r/min, with water washing is distilled 2-3 times after vacuum filtration, drying obtains final product load medicine organobentonite;
C. succinic acid, butanediol, lactic acid are carried out into polymerisation 2-3h at 230-250 DEG C, obtains poly- fourth
The copolymerization carrier of succinate adipate and PLA;
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 copolymers is carried to addition step b gained in the step d gained prepolymer aqueous solution to carry Body, adds styrene-maleic anhydride copolymer sodium salt and Sodium Polyacrylate 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;Copolymer is introduced as common carrier, the drugloading rate of microcapsules is significantly improved.
Specific embodiment
Specific embodiment of the invention is further described with reference to embodiment.
Embodiment
A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule, it is characterised in that be by following weight The raw material of part is made:
Succinic acid 5, chlopyrifos active compound 25, bentonite 50, butanediol 5, argy wormwood essential oil 8, urea 40, trimethyl chlorination Ammonium 2, lactic acid 1.5, formaldehyde 70, appropriate hydrochloric acid, methyl alcohol 20, Sodium hydroxide q. s, styrene-maleic anhydride copolymer sodium salt 5, poly- third Olefin(e) acid sodium 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。
A kind of described copolymer as the argy wormwood essential oil synergy chlorpyrifos microcapsule of carrier preparation method, its feature exists In being made up of following steps:
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, the dissolving of argy wormwood essential oil in methyl alcohol, are added in above-mentioned suspension, with 130- in 20-40 DEG C of thermostatic control oscillator vibration The velocity fluctuation 3-5h of 160r/min, with water washing is distilled 2-3 times after vacuum filtration, drying obtains final product load medicine organobentonite;
C. succinic acid, butanediol, lactic acid are carried out into polymerisation 2-3h at 230-250 DEG C, obtains poly- fourth
The copolymerization carrier of succinate adipate and PLA;
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 copolymers is carried to addition step b gained in the step d gained prepolymer aqueous solution to carry Body, adds styrene-maleic anhydride copolymer sodium salt and Sodium Polyacrylate 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 copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule, it is characterised in that be by following weight portion Raw material be made:
Succinic acid 3-5, chlopyrifos active compound 15-25, bentonite 30-50, butanediol 3-5, argy wormwood essential oil 3-8, urea 30-40, ten Dialkyl group trimethyl ammonium chloride 1-2, lactic acid 0.6-1.5, formaldehyde 60-70, appropriate hydrochloric acid, methyl alcohol 10-20, Sodium hydroxide q. s, 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. a kind of copolymer according to claim 1 as the argy wormwood essential oil synergy chlorpyrifos microcapsule of carrier preparation side Method, it is characterised in that be made up of following steps:
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, the dissolving of argy wormwood essential oil in methyl alcohol, are added in above-mentioned suspension, with 130- in 20-40 DEG C of thermostatic control oscillator vibration The velocity fluctuation 3-5h of 160r/min, with water washing is distilled 2-3 times after vacuum filtration, drying obtains final product load medicine organobentonite;
C. succinic acid, butanediol, lactic acid are carried out into polymerisation 2-3h at 230-250 DEG C, obtains poly- fourth
The copolymerization carrier of succinate adipate and PLA;
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 copolymers is carried to addition step b gained in the step d gained prepolymer aqueous solution to carry Body, adds styrene-maleic anhydride copolymer sodium salt and Sodium Polyacrylate 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.
CN201611151908.8A 2016-12-14 2016-12-14 A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof Withdrawn CN106719864A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110269063A (en) * 2018-03-16 2019-09-24 南通宏洋化工有限公司 A kind of natural anophelifuge capsule of nano

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101427687A (en) * 2007-11-08 2009-05-13 联合国南通农药剂型开发中心 High-content chlorpyrifos microcapsule suspension agent and production method
CN102027989A (en) * 2010-12-31 2011-04-27 沙隆达集团公司 High content chlorpyrifos suspending agent and preparation method thereof
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
CN103070166A (en) * 2012-12-26 2013-05-01 南通联农农药制剂研究开发有限公司 Micro-capsule suspension-water emulsion ZW and preparation method thereof
CN105309425A (en) * 2014-07-16 2016-02-10 刘振宇 Chlopyrifos-containing microcapsule granule and preparation method thereof
CN105475347A (en) * 2015-12-31 2016-04-13 周德志 Preparation method of chlorpyrifos microcapsules (MCs)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101427687A (en) * 2007-11-08 2009-05-13 联合国南通农药剂型开发中心 High-content chlorpyrifos microcapsule suspension agent and production method
CN102027989A (en) * 2010-12-31 2011-04-27 沙隆达集团公司 High content chlorpyrifos suspending agent and preparation method thereof
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
CN103070166A (en) * 2012-12-26 2013-05-01 南通联农农药制剂研究开发有限公司 Micro-capsule suspension-water emulsion ZW and preparation method thereof
CN105309425A (en) * 2014-07-16 2016-02-10 刘振宇 Chlopyrifos-containing microcapsule granule and preparation method thereof
CN105475347A (en) * 2015-12-31 2016-04-13 周德志 Preparation method of chlorpyrifos microcapsules (MCs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110269063A (en) * 2018-03-16 2019-09-24 南通宏洋化工有限公司 A kind of natural anophelifuge capsule of nano

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Application publication date: 20170531