CN103120161A - Pyraclostrobin microcapsule suspending agent - Google Patents
Pyraclostrobin microcapsule suspending agent Download PDFInfo
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- CN103120161A CN103120161A CN2013100790759A CN201310079075A CN103120161A CN 103120161 A CN103120161 A CN 103120161A CN 2013100790759 A CN2013100790759 A CN 2013100790759A CN 201310079075 A CN201310079075 A CN 201310079075A CN 103120161 A CN103120161 A CN 103120161A
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- China
- Prior art keywords
- microcapsule suspending
- pyraclostrobin
- suspending agent
- agent
- solvent
- Prior art date
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Links
- 239000005869 Pyraclostrobin Substances 0.000 title claims abstract description 57
- HZRSNVGNWUDEFX-UHFFFAOYSA-N pyraclostrobin Chemical compound COC(=O)N(OC)C1=CC=CC=C1COC1=NN(C=2C=CC(Cl)=CC=2)C=C1 HZRSNVGNWUDEFX-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000003094 microcapsule Substances 0.000 title claims abstract description 52
- 239000000375 suspending agent Substances 0.000 title claims abstract description 51
- 239000002904 solvent Substances 0.000 claims abstract description 23
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000002562 thickening agent Substances 0.000 claims abstract description 11
- 239000000080 wetting agent Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 12
- 241000233679 Peronosporaceae Species 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- 241000209140 Triticum Species 0.000 claims description 10
- 235000021307 Triticum Nutrition 0.000 claims description 10
- 210000000481 breast Anatomy 0.000 claims description 9
- 240000008067 Cucumis sativus Species 0.000 claims description 8
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 claims description 8
- 229920001285 xanthan gum Polymers 0.000 claims description 8
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 claims description 7
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 claims description 7
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 108010010803 Gelatin Proteins 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 229920000159 gelatin Polymers 0.000 claims description 5
- 239000008273 gelatin Substances 0.000 claims description 5
- 235000019322 gelatine Nutrition 0.000 claims description 5
- 235000011852 gelatine desserts Nutrition 0.000 claims description 5
- 235000011187 glycerol Nutrition 0.000 claims description 5
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 2
- 239000004368 Modified starch Substances 0.000 claims description 2
- 229920000881 Modified starch Polymers 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 229940051250 hexylene glycol Drugs 0.000 claims description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 2
- 235000019426 modified starch Nutrition 0.000 claims description 2
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 13
- 230000002045 lasting effect Effects 0.000 abstract description 5
- 239000000575 pesticide Substances 0.000 abstract description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 abstract 2
- 239000004480 active ingredient Substances 0.000 abstract 1
- 244000052616 bacterial pathogen Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000005538 encapsulation Methods 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003449 preventive effect Effects 0.000 description 30
- 238000000034 method Methods 0.000 description 13
- 239000003814 drug Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 230000002776 aggregation Effects 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 7
- 201000010099 disease Diseases 0.000 description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 7
- 238000005187 foaming Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 241000221785 Erysiphales Species 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000361 pesticidal effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- LYCAIKOWRPUZTN-NMQOAUCRSA-N 1,2-dideuteriooxyethane Chemical compound [2H]OCCO[2H] LYCAIKOWRPUZTN-NMQOAUCRSA-N 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 241000235349 Ascomycota Species 0.000 description 2
- 241000221198 Basidiomycota Species 0.000 description 2
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 240000003553 Leptospermum scoparium Species 0.000 description 2
- 235000015459 Lycium barbarum Nutrition 0.000 description 2
- 244000061176 Nicotiana tabacum Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 241000233654 Oomycetes Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 241000918585 Pythium aphanidermatum Species 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000857 drug effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000002075 main ingredient Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 206010011732 Cyst Diseases 0.000 description 1
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- 239000005800 Kresoxim-methyl Substances 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 208000003351 Melanosis Diseases 0.000 description 1
- 240000008790 Musa x paradisiaca Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000030833 cell death Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- ZOTBXTZVPHCKPN-HTXNQAPBSA-N kresoxim-methyl Chemical compound CO\N=C(\C(=O)OC)C1=CC=CC=C1COC1=CC=CC=C1C ZOTBXTZVPHCKPN-HTXNQAPBSA-N 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 210000003470 mitochondria Anatomy 0.000 description 1
- 230000002438 mitochondrial effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The invention relates to the field of pesticide preparation, and discloses a pyraclostrobin microcapsule suspending agent. The pyraclostrobin microcapsule suspending agent consists of the following components in percentage by weight: 1-40% of pyraclostrobin, 1-40% of urea formaldehyde resin, 1-40% of solvent, 1-10% of wetting agent, 1-10% of dispersing agent, 0.1-2% of thickening agent, 1-10% of emulsifying agent, 0-5% of anti-freezing agent and the balance of water. According to the invention, the pyraclostrobin is used as an active ingredient, and the urea formaldehyde resin and matching dispersing agent, wetting agent and the like are selected as accessories to prepare a high-quality microcapsule suspending agent with high encapsulation efficiency, dispersity and suspensibility; and the microcapsule suspending agent realizes a lasting and constant prevention effect on a crop, is superior to the existing pyraclostrobin pesticide preparation and a microcapsule suspending agent prepared by other accessories, and can effectively protect the crop from being damaged by pathogenic bacteria.
Description
Technical field
The present invention relates to the pesticidal preparations field, relate to specifically a kind of pyraclostrobin microcapsule suspending agent.
Background technology
Pyraclostrobin is a kind of methoxy acrylic bactericide that has the pyrazoles structure concurrently, between thin race pigment b and c1, the electronics transmission suppresses the mitochondrial respiratory effect by stoping for it, make mitochondria can not produce and provide the needed energy of cell eubolism (ATP), finally cause cell death.Pyraclostrobin can be used for the various crops such as wheat, peanut, paddy rice, vegetables, fruit tree, tobacco, tea tree, ornamental plants, lawn, the multiple diseases such as control sac fungi, basidiomycetes, imperfect fungus and the fungus-caused leaf blight of Oomycete, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, shot hole, brown spot, damping off.Early blight, late blight, powdery mildew and leaf blight etc. to powdery mildew of cucumber, downy mildew, banana freckle, leaf spot, downy mildew of garpe, anthracnose, powdery mildew, tomato and potato all have better control efficiency.Be used for barley and wheat, can effectively prevent and treat the generation of leaf blight, glume blight, leaf rust, yellow rust, leaf blight, reticulate pattern disease, spot blight, moire disease.
At the agriculture field of present stage, normally pyraclostrobin is made cream preparation and use, but traditional pyraclostrobin missible oil lasting period to be relatively poor, drug effect can not lasting stability, and preventive effect is relatively poor.Just need to increase thus spraying times, the harm of aggravation to people, crop and environment.Therefore, urgent need will provide the novel pyrazole kresoxim-methyl Pesticidal products that a kind of preventive effect is high, the lasting period is long.
Summary of the invention
In view of this, the object of the invention is to provide a kind of pyraclostrobin microcapsule suspending agent, makes pyraclostrobin microcapsule suspending agent preventive effect of the present invention higher and keep for a long time constant preventive effect, and effectively cover crop is not subjected to the infringement of pathogen.
For realizing purpose of the present invention, the present invention adopts following technical scheme:
A kind of pyraclostrobin microcapsule suspending agent, by weight percentage, by the 1%-40% pyraclostrobin, 1%-40% Lauxite, 1%-40% solvent, 1%-10% wetting agent, 1%-10% dispersant, 0.1%-2% thickener, 1%-10% emulsifier, 0-5% antifreezing agent and excess water form;
described emulsifier is selected from 2201 emulsifier, the 0201B emulsifier, the 0203B emulsifier, agriculture breast 500, agriculture breast 600, in Nongru-700 one or more, described solvent is selected from the S-200# solvent, the S-150# solvent, toluene, dimethylbenzene, in acetone one or more, described wetting agent is selected from SP-6821, SP-63R, BC/10, TERSPERSE2288, in TERSPERSE4894 one or more, described dispersant is selected from SP-SC3, SP-SC29, SP-2728, SP-3060, SP-3266, in TERSPERSE2500 one or more, described thickener is selected from gelatin, sodium carboxymethylcellulose, hydroxyethylcellulose, modified starch, xanthans, bentonite, silica, in aluminium-magnesium silicate one or more.
As preferably, by weight percentage, by the 10%-30% pyraclostrobin, 10%-30% Lauxite, 5%-35% solvent, 2%-8% wetting agent, 2%-8% dispersant, 0.5%-2% thickener, 3%-8% emulsifier, 0-5% antifreezing agent and excess water form.
Defective for existing pyraclostrobin, the present invention makes the pyraclostrobin microcapsule suspending agent take pyraclostrobin, pollopas and suitable dose, wetting agent, dispersant, thickener, emulsifier as material, has made up the lasting not constant defective of existing pyraclostrobin formulations of pesticide preventive effect.
Microcapsule suspending agent (CS) is to utilize natural or synthetic macromolecular material to form the nucleocapsid structure small container, is a kind of microencapsulation with semipermeability cyst membrane, agricultural chemicals is coated wherein, and be suspended in the formulations of pesticide in water.microcapsule suspending agent is different from other common pesticidal preparations, the selection of auxiliary material directly affects its envelop rate, suspensibility, dispersiveness etc. concerns whether main ingredient can be constant lastingly, the present patent application people is on the basis of further investigation, select main ingredient, the component that auxiliary material is complementary is prepared, prepared microcapsule suspending agent envelop rate 〉=90%, particle diameter (0.25mm～1.4mm standard screen) 〉=95%, suspensibility 〉=90%, continue foaming characteristic (after 1min)≤15.0mL, dispersed 〉=90%, pH value 7.0～10.0, thermodynamic stability is qualified, low-temperature stability is qualified, and after dispenser, the preventive effect of 20 days is still efficient, do not occur that preventive effect extends in time and the problem that reduces.The performance parameters such as the present invention has also selected the outer auxiliary material of the scope of the invention to carry out the preparation of microcapsule suspending agent, its envelop rate and preventive effect are all not as the present invention, and the selection of visible different auxiliary material can affect the performance of the drug effect of pyraclostrobin.
As preferably, emulsifier of the present invention is 0201B emulsifier or agriculture breast 600, described solvent is S-200# solvent, S-150# solvent or dimethylbenzene, and described dispersant is SP-SC3, SP-SC29, SP-3266 or TERSPERSE2500, and described thickener is gelatin, xanthans or Magnesiumaluminumsilicate.
As preferably, described antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, hexylene glycol, urea, ammonium sulfate, sodium chloride, calcium chloride, more preferably ethylene glycol or glycerine.
In an embodiment of the present invention, vegetable crop and cereal crops are used pyraclostrobin microcapsule suspending agent and the commercially available pyraclostrobin missible oil of pyraclostrobin microcapsule suspending agent of the present invention, contrast, result shows, the preventive effect of product of the present invention is higher than the product of other two contrasts, particularly in to control cucumber downy mildew, Chinese cabbage anthracnose and wheat rust, therefore pyraclostrobin microcapsule suspending agent of the present invention can be used in the disease control of crops, is preferred in the control of cucumber downy mildew, Chinese cabbage anthracnose and wheat rust.
Pyraclostrobin of the present invention can be prepared by preparation technologies such as interfacial polymerization, physical mechanical method, phase separation method, emulsion-solvent evaporated methods.Preferably, microcapsule suspending agent of the present invention prepares with situ aggregation method, and the preparation method is as follows, wherein can prepare in accordance with the following methods for Lauxite, also can be by commercially available acquisition:
Add urea and formaldehyde (mol ratio=1:1.5-2.0) and appropriate amount of deionized water in the there-necked flask that thermometer, agitating device are housed, pH to 8.0 with sodium hydroxide conditioned reaction system, be heated to 70-80 ℃, stirring at low speed reaction 1h obtains the Lauxite prepolymer aqueous solution.Under normal temperature, the former medicine of pyraclostrobin is dissolved in solvent, adds emulsifier, then add entry, stir the stable oil-in-water shape emulsion of rear formation, add the Lauxite prepolymer, then keep the temperature of 70-80 ℃ to continue to stir 60min.In whipping process, gradation adds watery hydrochloric acid regulation system pH=2.0, then underspeeds gradually.To reaction end, add NaOH regulation system pH value to neutral.Add appropriate wetting agent, dispersant, thickener, namely obtain the pyraclostrobin microcapsule suspending agent.
By above technical scheme as can be known; the present invention is take pyraclostrobin as active component; select Lauxite and the dispersant that is complementary, wetting agent etc. to be auxiliary material; be prepared into envelop rate, dispersiveness, high-quality microcapsule suspending agent that suspensibility is higher; its preventive effect to farming is constant lastingly; be better than the microcapsule suspending agent of existing pyraclostrobin pesticidal preparations and the preparation of other auxiliary materials, effectively cover crop avoids the pathogen infringement.
Embodiment
The embodiment of the invention discloses a kind of pyraclostrobin microcapsule suspending agent.Those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is, all similarly replace and change apparent to those skilled in the art, and they all are deemed to be included in the present invention.Product of the present invention and method are described by preferred embodiment, and the related personnel obviously can change product as herein described within not breaking away from content of the present invention, spirit and scope or suitably change and combination, realizes and use the technology of the present invention.
Pyraclostrobin microcapsule suspending agent of the present invention can be used for the various crops such as wheat, peanut, paddy rice, vegetables, fruit tree, tobacco, tea tree, ornamental plants, lawn, the multiple diseases such as control sac fungi, basidiomycetes, imperfect fungus and the fungus-caused leaf blight of Oomycete, rust, powdery mildew, downy mildew, epidemic disease, anthracnose, shot hole, brown spot, damping off.
Further set forth the present invention below in conjunction with embodiment.
Embodiment 1:5% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 5%, Lauxite 5%, 0201B emulsifier 3.5%, S-150# solvent 4%, SP-63R1%, SP-SC32%, xanthans 0.2%, ethylene glycol 2%, surplus are water, and situ aggregation method prepares.
Envelop rate 〉=90%, particle diameter (0.25mm～1.4mm standard screen) 〉=95%, suspensibility 〉=90% continues foaming characteristic (after 1min)≤15.0mL, dispersed 〉=90%, pH value 7.0～10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 2:10% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 10%, Lauxite 8%, agriculture breast 6004%, dimethylbenzene 8%, SP-68211%, SP-SC292%, aluminium-magnesium silicate 0.3%, surplus are water, and situ aggregation method prepares.
Envelop rate 〉=90%, particle diameter (0.25mm～1.4mm standard screen) 〉=95%, suspensibility 〉=90% continues foaming characteristic (after 1min)≤15.0mL, dispersed 〉=90%, pH value 7.0～10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 3:25% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 25%, Lauxite 23%, 0201B emulsifier 5%, S-200# solvent 15%, SP-68212%, SP-32664%, xanthans 0.2%, ethylene glycol 3%, surplus are water, and situ aggregation method prepares.
Envelop rate 〉=90%, particle diameter (0.25mm～1.4mm standard screen) 〉=95%, suspensibility 〉=90% continues foaming characteristic (after 1min)≤15.0mL, dispersed 〉=90%, pH value 7.0～10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 4:30% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 30%, Lauxite 28%, 0201B emulsifier 5%, agriculture breast 6004%, dimethylbenzene 30%, BC/101%, SP-SC293%, gelatin 0.5%, ethylene glycol 2%, surplus are water, and situ aggregation method prepares.
Envelop rate 〉=90%, particle diameter (0.25mm～1.4mm standard screen) 〉=95%, suspensibility 〉=90% continues foaming characteristic (after 1min)≤15.0mL, dispersed 〉=90%, pH value 7.0～10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 5:40% pyraclostrobin microcapsule suspending agent
Pyraclostrobin 40%, Lauxite 39%, 0201B4%, S-200# solvent 40%, TERSPERSE22882%, TERSPERSE25003%, xanthans 3%, glycerine 2%, surplus are water, and situ aggregation method prepares.
Envelop rate 〉=90%, particle diameter (0.25mm～1.4mm standard screen) 〉=95%, suspensibility 〉=90% continues foaming characteristic (after 1min)≤15.0mL, dispersed 〉=90%, pH value 7.0～10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Embodiment 6: the microcapsule suspending agent contrast of different auxiliary material
Contrast microcapsule suspension agent prescription: 5% pyraclostrobin, peaceful breast No. 33 5%, solvent naphtha No. 100 10%, lauryl sodium sulfate 3%, sodium lignin sulfonate 3%, xanthans 0.2%, ethylene glycol 1%, surplus are water, are prepared by situ aggregation method
The pyraclostrobin microcapsule suspending agent technical indicator that obtains with above formula is as follows: envelop rate 87%, particle diameter (0.25mm～1.4mm standard screen) 92%, suspensibility 88%, continue foaming characteristic (after 1min) 15.0mL, dispersed 90%, pH value 7.0～10.0, thermodynamic stability is qualified, and low-temperature stability is qualified.
Compare with the microcapsule suspending agent of embodiment of the present invention same amount, the performance parameters such as its envelop rate, suspensibility and dispersiveness are all not as the present invention.
Product and above-mentioned contrast microcapsule suspending agent with embodiment 1 carries out the control of cucumber downy mildew, Chinese cabbage anthracnose and wheat rust respectively, the results are shown in Table 1.
Table 1 microcapsule suspending agent preventive effect investigation result
As can be seen from the above table, in the control to cucumber downy mildew, Chinese cabbage anthracnose and wheat rust, pyraclostrobin of the present invention all showed higher, stable preventive effect in 20 days after 7 days and medicine after medicine, and the pyraclostrobin microcapsule suspending agent preventive effect of contrast is not as product of the present invention, and along with the prolongation of time, descending appears in preventive effect.
Embodiment 7: and the preventive effect comparative trial of pyraclostrobin missible oil
1, to the preventive effect of cucumber downy mildew
Get 25% pyraclostrobin microcapsule suspending agent of the embodiment of the present invention 3, take 250g/L pyraclostrobin missible oil as to complying comparative trial, consumption is 120g (a.i.)/hm
2, each processing arranges 3 repetitions, and result is got the mean value of 3 repetitions.The preventive effect of 7d, 20d statistics to cucumber downy mildew after medicine, the results are shown in Table 2 respectively.
Table 2 test is processed and preventive effect
As seen from the above table, on the preventive effect of 7 days after medicine, preparation of the present invention and missible oil do not have significant difference, but along with the prolongation of time, and after medicine 20 days, microcapsule suspending agent of the present invention was still kept higher preventive effect, and the decline of significance appears in missible oil.
2, to the preventive effect of Chinese cabbage anthracnose
Get 30% pyraclostrobin microcapsule suspending agent of the embodiment of the present invention 4, take 250g/L pyraclostrobin missible oil as to complying comparative trial, consumption is 120g (a.i.)/hm
2, each processing arranges 3 repetitions, and result is got the mean value of 3 repetitions.The preventive effect of 7d, 20d statistics to Chinese cabbage anthracnose after medicine, the results are shown in Table 3 respectively.
Table 3 test is processed and preventive effect
As seen from the above table, on the preventive effect of 7 days after medicine, preparation of the present invention and missible oil do not have significant difference, but along with the prolongation of time, and after medicine 20 days, microcapsule suspending agent of the present invention was still kept higher preventive effect, and the decline of significance appears in missible oil.
3, to the preventive effect of wheat rust
Get 40% pyraclostrobin microcapsule suspending agent of the embodiment of the present invention 5, take 250g/L pyraclostrobin missible oil as to complying comparative trial, consumption is 120g (a.i.)/hm
2, each processing arranges 3 repetitions, and result is got the mean value of 3 repetitions.The preventive effect of 7d, 20d statistics to wheat rust after medicine, the results are shown in Table 4 respectively.
Table 4 test is processed and preventive effect
As seen from the above table, on the preventive effect of 7 days after medicine, preparation of the present invention and missible oil do not have significant difference, but along with the prolongation of time, and after medicine 20 days, microcapsule suspending agent of the present invention was still kept higher preventive effect, and the decline of significance appears in missible oil.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. pyraclostrobin microcapsule suspending agent, it is characterized in that, by weight percentage, by the 1%-40% pyraclostrobin, 1%-40% Lauxite, 1%-40% solvent, 1%-10% wetting agent, 1%-10% dispersant, 0.1%-2% thickener, 1%-10% emulsifier, 0-5% antifreezing agent and excess water form;
described emulsifier is selected from 2201 emulsifier, the 0201B emulsifier, the 0203B emulsifier, agriculture breast 500, agriculture breast 600, in Nongru-700 one or more, described solvent is selected from the S-200# solvent, the S-150# solvent, toluene, dimethylbenzene, in acetone one or more, described wetting agent is selected from SP-6821, SP-63R, BC/10, TERSPERSE2288, in TERSPERSE4894 one or more, described dispersant is selected from SP-SC3, SP-SC29, SP-2728, SP-3060, SP-3266, in TERSPERSE2500 one or more, described thickener is selected from gelatin, sodium carboxymethylcellulose, hydroxyethylcellulose, modified starch, xanthans, bentonite, silica, in aluminium-magnesium silicate one or more.
2. microcapsule suspending agent according to claim 1, it is characterized in that, by weight percentage, by the 10%-30% pyraclostrobin, 10%-30% Lauxite, 5%-35% solvent, 2%-8% wetting agent, 2%-8% dispersant, 0.5%-2% thickener, 3%-8% emulsifier, 0-5% antifreezing agent and excess water form.
3. microcapsule suspending agent according to claim 1, is characterized in that, described emulsifier is 0201B emulsifier or agriculture breast 600.
4. microcapsule suspending agent according to claim 1, is characterized in that, described solvent is S-200# solvent, S-150# solvent or dimethylbenzene.
5. microcapsule suspending agent according to claim 1, is characterized in that, described dispersant is SP-SC3, SP-SC29, SP-3266 or TERSPERSE2500.
6. microcapsule suspending agent according to claim 1, is characterized in that, described thickener is gelatin, xanthans or Magnesiumaluminumsilicate.
7. microcapsule suspending agent according to claim 1, is characterized in that, described antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, hexylene glycol, urea, ammonium sulfate, sodium chloride, calcium chloride.
8. micro-capsule suspension according to claim 7, is characterized in that, described antifreezing agent is ethylene glycol or glycerine.
9. according to claim 1-8 described microcapsule suspending agents of any one, is characterized in that, is used for control cucumber downy mildew, Chinese cabbage anthracnose and wheat rust.
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| CN104823996A (en) * | 2015-05-13 | 2015-08-12 | 山东农业大学 | Preparation method of pyraclostrobin microcapsules |
| CN105961384A (en) * | 2016-06-03 | 2016-09-28 | 安徽广信农化股份有限公司 | Method for preparing pyraclostrobin micro-capsule through re-coagulation method |
| CN106070275A (en) * | 2016-06-03 | 2016-11-09 | 安徽广信农化股份有限公司 | The method of the pyraclostrobin microcapsule of preparation uniform particle size |
| CN106472499A (en) * | 2016-09-07 | 2017-03-08 | 江苏省苏科农化有限责任公司 | A kind of pyraclostrobin/Isoprothiolane microcapsule suspending agent and preparation method and application |
| CN108651498A (en) * | 2018-07-17 | 2018-10-16 | 郭秦 | A kind of pyraclostrobin microcapsule suspension agent producing process |
| CN110973128A (en) * | 2019-12-25 | 2020-04-10 | 山东省绿士农药有限公司 | Benzopyrazole microcapsule suspending agent for preventing and treating gummy stem blight of watermelon and preparation method thereof |
| CN111296424A (en) * | 2020-03-20 | 2020-06-19 | 北京工业大学 | Preparation of boscalid-coated mesoporous hydrophilic nanocomposite system by one-step method |
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| WO2011156048A1 (en) * | 2010-06-07 | 2011-12-15 | Dow Agrosciences Llc | Microcapsule suspensions including high levels of agriculturally active ingredients |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104823996A (en) * | 2015-05-13 | 2015-08-12 | 山东农业大学 | Preparation method of pyraclostrobin microcapsules |
| CN105961384A (en) * | 2016-06-03 | 2016-09-28 | 安徽广信农化股份有限公司 | Method for preparing pyraclostrobin micro-capsule through re-coagulation method |
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| CN108651498A (en) * | 2018-07-17 | 2018-10-16 | 郭秦 | A kind of pyraclostrobin microcapsule suspension agent producing process |
| CN110973128A (en) * | 2019-12-25 | 2020-04-10 | 山东省绿士农药有限公司 | Benzopyrazole microcapsule suspending agent for preventing and treating gummy stem blight of watermelon and preparation method thereof |
| CN111296424A (en) * | 2020-03-20 | 2020-06-19 | 北京工业大学 | Preparation of boscalid-coated mesoporous hydrophilic nanocomposite system by one-step method |
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