CN105309425A - Chlopyrifos-containing microcapsule granule and preparation method thereof - Google Patents
Chlopyrifos-containing microcapsule granule and preparation method thereof Download PDFInfo
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- CN105309425A CN105309425A CN201410336351.XA CN201410336351A CN105309425A CN 105309425 A CN105309425 A CN 105309425A CN 201410336351 A CN201410336351 A CN 201410336351A CN 105309425 A CN105309425 A CN 105309425A
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- microcapsule granule
- sulfonate
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- chlopyrifos
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Abstract
The invention relates to a pesticide in microcapsule granules and a preparation method thereof. The provided microcapsule granule can sustain-release chlopyrifos under the ground. The microcapsule granule is composed of the following components in percentage by weight: 3 to 95% of chlopyrifos, 0.1 to 2% of wetting agent, 1 to 8% of dispersant, 0.1 to 5% of capsule material, 0.1 to 4% of stabilizing agent, and 0.1 to 4% of binding agent. The provided microcapsule granulate has the characteristics of good insecticidal effect, long lasting effect, little environment pollution, simple package, and convenience in storage and transportation.
Description
Technical field
The present invention relates to a kind of agricultural chemical insecticide and preparation method thereof, specifically, the present invention relates to a kind of chlorpyrifos-containing microcapsule granules and preparation method thereof.
Background technology
Former medicine is white granular crystallization, and room-temperature stable has mercaptan stink, density 1.398 (43.5 DEG C), fusing point 41.5 ~ 43.5 DEG C, and vapour pressure is 2.5mPa (25 DEG C), and in water, solvability is 1.2mg/L, is dissolved in most of organic solvent.
Toxicity: belong to moderate toxicity insecticide.Former medicine rat acute LD50 of passing through mouth is 163mg/kg, acute through skin LD50>2g/kg; Have slight stimulation to experimental animal eyes, have obvious stimulation to skin, long-time multiple-contact can produce and burn.The sub-anxious per os action-less dose of rat is 0.03mg/kg, and chronic per os action-less dose is 0.1mg/kg.The chronic per os action-less dose of dog is 0.03mg/kg.Teratogenesis, mutagenesis, carcinogenesis is had no under test dose.
Because chlopyrifos itself has certain stink, have impact on its applying on vegetables, fruit tree, in order to solve its stink, made microcapsules, superscribe thin film on chlopyrifos molecule surface, prevent stink from distributing, simultaneously can slow releasing, decrease medication quantity and extend administration time, reducing environmental pollution.
Summary of the invention
The present invention aims to provide a kind of chlorpyrifos-containing microcapsule granules and preparation method thereof, to solve the above-mentioned problems in the prior art.The agricultural insecticide made with this chlorpyrifos-containing microcapsule granules provided by the invention is effective, use safety, and the lasting period is long, and environmental pollution is little.
Another object of the present invention is to provide a kind of preparation method of above-mentioned chlorpyrifos-containing microcapsule granules.
Technical scheme of the present invention is: a kind of chlorpyrifos microcapsule granule, comprises following component by weight percentage:
Chlopyrifos 3% ~ 95%
Wetting agent 0.1% ~ 2%
Dispersant 1% ~ 8%
Capsule ability 0.1% ~ 5%
Stabilizing agent 0.1% ~ 4%
Binding agent 0.1% ~ 4%
Described wetting agent is for being selected from polyoxyethylene nonylphenol ether, OPEO, aliphatic alcohol sulfate, alkyl sulfate, alkyl alcohol ethoxylates sodium sulphate, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, lauryl sodium sulfate, sodium alkyl benzene sulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, monoalkyl phenyl APEO succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, one or more in alkyl amide taurate.
Described dispersant be selected from aliphatic alcohol polyethenoxy base ether, naphthalenesulfonate formaldehyde condensation compound, alkylphenol-polyethenoxy base ether, agriculture breast 602, agriculture breast 33, agriculture breast 34, castor oil series one or more.
Described capsule just for be selected from Lauxite, melamine resin, ethyl cellulose a kind of in one or more.
Described stabilizing agent be selected from triphenyl phosphate, sodium hydrogen phosphate, succinic acid, adipic acid, oxalic acid, borax one or more.
Described binding agent be selected from xanthans, aluminium-magnesium silicate, sucrose, gelatin, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, starch, sodium carboxymethylcellulose one or more.
In said components, chlopyrifos, i.e. former medicine, it makes agricultural insecticide have insecticidal activity.Auxiliary agent is referred to as by wetting agent, dispersant and stabilizing agent, and be the general name of the various supplies used in the preparation and use of product, it does not generally have biologically active.Wetting agent, for making water-fast former medicine be readily wetted by water, and can be suspended in water; Dispersant, it can prevent particle aggregation from becoming large, can improve and improve the dispersive property of preparation; Capsule is only when spraying dry at powder surface film-forming; Stabilizing agent, it can prevent the decomposition of active ingredient.
Prepare the method for chlorpyrifos-containing microcapsule granules of the present invention, comprise the following steps:
(1) by weight percentage, by component chlopyrifos 3% ~ 95%, wetting agent 0.1% ~ 2%, dispersant 1% ~ 8%, capsule ability 0.1% ~ 5%, stabilizing agent 0.1% ~ 4%, binding agent 0.1% ~ 4%, enter horizontal sand mill after mixing and carry out sand milling, add capsule in the material after sand milling and be just uniformly mixed.
(2) by step (1) gained suspending agent through Highspeedcentrifugingandsprayingdrier drying and granulating, then spraying dry, be finally processed into content 3% ~ 95%, the microcapsule granule that particle diameter is 1 ~ 3 millimeter.
Adopt the chlorpyrifos microcapsule granule that formula of the present invention is processed, its implementation result shows, this product in use has good disinsection effect, the lasting period is grown, increase production, little, the easy to use, safe coefficient of environmental pollution is high, to features such as human body fanout free region, and packaging is simple, storing is convenient, belongs to science, environmental type formulation agricultural insecticide.
Accompanying drawing explanation
By the description carried out its exemplary embodiment below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and easy understand.
Fig. 1 is the process chart of chlorpyrifos-containing microcapsule granules of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Fig. 1 is the production technological process of chlorpyrifos-containing microcapsule granules of the present invention.
Chlorpyrifos microcapsule granule of the present invention, comprises following component by weight percentage:
Chlopyrifos 3% ~ 95%
Wetting agent 0.1% ~ 2%
Dispersant 1% ~ 8%
Capsule ability 0.1% ~ 5%
Stabilizing agent 0.1% ~ 4%
Binding agent 0.1% ~ 4%
Described wetting agent is for being selected from polyoxyethylene nonylphenol ether, OPEO, aliphatic alcohol sulfate, alkyl sulfate, alkyl alcohol ethoxylates sodium sulphate, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, lauryl sodium sulfate, sodium alkyl benzene sulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, monoalkyl phenyl APEO succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, one or more in alkyl amide taurate.
Described dispersant be selected from aliphatic alcohol polyethenoxy base ether, naphthalenesulfonate formaldehyde condensation compound, alkylphenol-polyethenoxy base ether, agriculture breast 602, agriculture breast 33, agriculture breast 34, castor oil series one or more.
Described capsule just for be selected from Lauxite, melamine resin, ethyl cellulose a kind of in one or more.
Described stabilizing agent be selected from triphenyl phosphate, sodium hydrogen phosphate, succinic acid, adipic acid, oxalic acid, borax one or more.
Described binding agent be selected from xanthans, aluminium-magnesium silicate, sucrose, gelatin, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, starch, sodium carboxymethylcellulose one or more.
In said components, chlopyrifos, i.e. former medicine, it makes agricultural insecticide have insecticidal activity.Auxiliary agent is referred to as by wetting agent, dispersant and stabilizing agent, and be the general name of the various supplies used in the preparation and use of product, it does not generally have biologically active.Wetting agent, for making water-fast former medicine be readily wetted by water, and can be suspended in water; Dispersant, it can prevent particle aggregation from becoming large, can improve and improve the dispersive property of preparation; Capsule is only when spraying dry at powder surface film-forming; Stabilizing agent, it can prevent the decomposition of active ingredient.
Prepare the method for chlorpyrifos-containing microcapsule granules of the present invention, comprise the following steps:
(1) by weight percentage, by component chlopyrifos 3% ~ 95%, wetting agent 0.1% ~ 2%, dispersant 1% ~ 8%, capsule ability 0.1% ~ 5%, stabilizing agent 0.1% ~ 4%, binding agent 0.1% ~ 4%, enter horizontal sand mill after mixing and carry out sand milling, add capsule in the material after sand milling and be just uniformly mixed.
(2) by step (1) gained suspending agent through Highspeedcentrifugingandsprayingdrier drying and granulating, then spraying dry, be finally processed into content 3% ~ 95%, the microcapsule granule that particle diameter is 1 ~ 3 millimeter.
Specific embodiment is as follows:
Embodiment 1:
(1) choose raw material according to following component, mixed: purity 97%(percentage by weight) the former powder 78g of chlopyrifos, wetting agent lauryl sodium sulfate 1g, dispersant fatty alcohol-polyoxyethylene ether 4g, becomes wafer 2.5 grams, stabilizing agent sodium hydrogen phosphate 2g, filler 13.5 grams, water 100g;
(2) carry out obtaining 1 ~ 3 micron after ultramicro grinding, the suspending agent of 45 ~ 50% weight percentages through horizontal sand mill;
(3) by gained suspending agent through Highspeedcentrifugingandsprayingdrier drying and granulating;
(4) spraying granulation is obtained via the air oven dry of heating the toxic about dead tick microcapsule granule 99g that weight percentage is about 75%.
Through inspection, obtained dispersible granule Chlorpyrifos content is 75.3%(percentage by weight), moisture 0.8%(percentage by weight), pH value 6.6, acceleration heat storage stability is qualified.Prevent and treat peanut soil pest control efficiency 97.3 ~ 99.2% in force.
Embodiment 2:
(1) choose raw material according to following component, mixed: purity 97.2%(percentage by weight) the former powder 78g of chlopyrifos, wetting agent lauryl sodium sulfate 1g, dispersant naphthalene sulfonic acid-formaldehyde condensation product 3g, becomes wafer 3 grams, stabilizing agent sodium hydrogen phosphate 5g, filler white sugar 10 grams, water 100g;
(2) carry out obtaining 1 ~ 3 micron after ultramicro grinding, the suspending agent of 45 ~ 50% weight percentages through horizontal sand mill;
(3) by gained suspending agent through Highspeedcentrifugingandsprayingdrier drying and granulating;
(4) spraying granulation is obtained via the air oven dry of heating the toxic about dead tick microcapsule granule 99g that weight percentage is about 75%.
Through inspection, obtained dispersible granule Chlorpyrifos content is 75.6%(percentage by weight), moisture 0.6%(percentage by weight), pH value 6.5, acceleration heat storage stability is qualified.Prevent and treat peanut soil pest control efficiency 97.2 ~ 99.6% in force.
Embodiment 3:
(1) choose raw material according to following component, mixed: purity 97%(percentage by weight) the former powder 78g of chlopyrifos, wetting agent neopelex 1.5g, dispersant fatty alcohol-polyoxyethylene ether 4g, becomes wafer 2.5 grams, stabilizing agent sodium hydrogen phosphate 2g, filler 12 grams, water 100g;
(2) carry out obtaining 1 ~ 3 micron after ultramicro grinding, the suspending agent of 45 ~ 50% weight percentages through horizontal sand mill;
(3) by gained suspending agent through Highspeedcentrifugingandsprayingdrier drying and granulating;
(4) spraying granulation is obtained via the air oven dry of heating the toxic about dead tick microcapsule granule 99g that weight percentage is about 75%.
Through inspection, obtained dispersible granule Chlorpyrifos content is 75.2%(percentage by weight), moisture 0.6%(percentage by weight), pH value 6.8, acceleration heat storage stability is qualified.Prevent and treat peanut soil pest control efficiency 97.2 ~ 99% in force.It will be understood by those skilled in the art that specific descriptions are above to explain object of the present invention, not for limiting the present invention, protection scope of the present invention is by claim and equivalents thereof.
Claims (7)
1. a chlorpyrifos microcapsule granule, comprises following component by weight percentage:
Chlopyrifos 3% ~ 95%
Wetting agent 0.1% ~ 2%
Dispersant 1% ~ 8%
Capsule ability 0.1% ~ 5%
Stabilizing agent 0.1% ~ 4%
Binding agent 0.1% ~ 4%.
2. chlorpyrifos microcapsule granule according to claim 1, it is characterized in that, described wetting agent is for being selected from polyoxyethylene nonylphenol ether, OPEO, aliphatic alcohol sulfate, lauryl sodium sulfate, alkyl alcohol ethoxylates sodium sulphate, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, sodium alkyl sulfonate, sodium alkyl benzene sulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, monoalkyl phenyl APEO succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, one or more in alkyl amide taurate.
3. chlorpyrifos microcapsule granule according to claim 1, it is characterized in that, described dispersant be selected from aliphatic alcohol polyethenoxy base ether, naphthalenesulfonate formaldehyde condensation compound, alkylphenol-polyethenoxy base ether, agriculture breast 602, agriculture breast 33, agriculture breast 34, castor oil series one or more.
4. chlorpyrifos microcapsule granule according to claim 1, is characterized in that, described capsule is just for being selected from the one of Lauxite, melamine resin, ethyl cellulose.
5. chlorpyrifos microcapsule granule according to claim 1, is characterized in that, described stabilizing agent be selected from triphenyl phosphate, sodium hydrogen phosphate, succinic acid, adipic acid, oxalic acid, borax one or more.
6. chlorpyrifos microcapsule granule according to claim 1, it is characterized in that, described binding agent be selected from xanthans, aluminium-magnesium silicate, sucrose, gelatin, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, starch, sodium carboxymethylcellulose one or more.
7. the preparation method of the chlorpyrifos microcapsule granule according to any one of claim 1-6, is characterized in that, comprise step:
(1) by weight percentage, by component chlopyrifos 3% ~ 95%, wetting agent 0.1% ~ 2%, dispersant 1% ~ 8%, capsule ability 0.1% ~ 5%, stabilizing agent 0.1% ~ 4%, binding agent 0.1% ~ 4%, enter horizontal sand mill after mixing and carry out sand milling, add capsule in the material after sand milling and be just uniformly mixed;
(2) by step (1) gained suspending agent through Highspeedcentrifugingandsprayingdrier drying and granulating, then spraying dry, be finally processed into content 3% ~ 95%, the microcapsule granule that particle diameter is 1 ~ 3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410336351.XA CN105309425A (en) | 2014-07-16 | 2014-07-16 | Chlopyrifos-containing microcapsule granule and preparation method thereof |
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| CN201410336351.XA CN105309425A (en) | 2014-07-16 | 2014-07-16 | Chlopyrifos-containing microcapsule granule and preparation method thereof |
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| CN105309425A true CN105309425A (en) | 2016-02-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106508953A (en) * | 2016-10-11 | 2017-03-22 | 常州市鼎日环保科技有限公司 | Preparation method of degradable chlorpyrifos sustained release microsphere |
| CN106719864A (en) * | 2016-12-14 | 2017-05-31 | 严帝 | A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof |
-
2014
- 2014-07-16 CN CN201410336351.XA patent/CN105309425A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106508953A (en) * | 2016-10-11 | 2017-03-22 | 常州市鼎日环保科技有限公司 | Preparation method of degradable chlorpyrifos sustained release microsphere |
| CN106719864A (en) * | 2016-12-14 | 2017-05-31 | 严帝 | A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof |
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Application publication date: 20160210 |