CN102845419B - Cyprodinil water dispersible granule and preparation method thereof - Google Patents
Cyprodinil water dispersible granule and preparation method thereof Download PDFInfo
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- CN102845419B CN102845419B CN 201210086856 CN201210086856A CN102845419B CN 102845419 B CN102845419 B CN 102845419B CN 201210086856 CN201210086856 CN 201210086856 CN 201210086856 A CN201210086856 A CN 201210086856A CN 102845419 B CN102845419 B CN 102845419B
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Abstract
The invention discloses a cyprodinil water dispersible granule and a preparation method thereof; the granule comprises the following components by weight: 10-80% of cyprodinil, 1-8% of a wetting agent, 1-10% of a dispersant, 1-40% of a disintegrating agent, 0.5-4% of a binder, 0.3-5% of an antifoaming agent, and the balance of carriers. The invention also discloses the preparation method of the cyprodinil water dispersible granule. The invention overcomes the disadvantages of suspending agents and wettable powder, and combines the advantages of both environmental protection and low application cost; during processing and application, environment pollution is reduced, and the application cost for peasants is reduced.
Description
Technical field
The invention belongs to pesticide field, be specifically related to a kind of cyprodinil water dispersible granules and preparation method thereof.
Background technology
Cyprodinil is mainly to suppress the biosynthesis of methionine moral, suppresses the secretion of hydrolase.Absorbed rapidly by blade in plant corpus, be penetrated into more than 30% in tissue, protected sediment is stored in blade; transmit in xylem, also transmit between blade, at high temperature metabolism is relatively rapid; sediment quite stable under low temperature in blade, metabolite inanimate object activity.For preventing and treating gray mold, powdery mildew, scab, be full of rot and wheat eyeprint disease etc.
The use of tradition agricultural chemicals, be mainly missible oil and pulvis, and the level of the productive forces is not in very high situation in the past, at the control disease pest and weed, captures agricultural foison, ensures that people's lives have played irreplaceable effect.Yet; along with the raising of living standards of the people, to the also corresponding raising of quality requirements of agricultural product, and international community is to the also corresponding raising of cry requirement of ecological environmental protection and implementation sustainable development; the application drawback of missible oil and pulvis is apparent, and the formulations of pesticide start to change to environment-friendly type.At present, cyprodinil in use is made generally in the suspending agent use.Although suspending agent is the environmental protection formulation, high to technological requirement aborning, can not realize at present the preparation of high-load, and its production, packing and cost of transportation is also higher, thereby causes the increase of production and use cost.
Water dispersible granules is a kind of novel formulation, and domestic and international R&D institution, enterprise relatively paid close attention to the research of this formulation in recent years.Water dispersible granules is to add suitable auxiliary agent with natural world or synthetic filler, through the special process granulation, forms.Water dispersible granules is easy to use, and to the mankind and Environmental security, is easy to control release and directed, so water dispersible granules is a kind of optimal selection that substitutes traditional missible oil and pulvis.
Summary of the invention
The objective of the invention is in order to overcome the environmental pollution that exists in the existing formulations of pesticide, be detrimental to health and the shortcoming such as use cost height and a kind of environmental protection, the availability developed are high, and cyprodinil water dispersible granules easy to use.
Another object of the present invention is to provide a kind of preparation method of above-mentioned water dispersible granules.
Technical scheme of the present invention: a kind of cyprodinil water dispersible granules, each component is as follows by weight percentage: cyprodinil 10～80%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, binding agent 0.5～4%, defoamer 0.3～5%, surplus are carrier.
Wherein said wetting agent is selected from one or more the combination in Tea Saponin, lignosulfite, lauryl sodium sulfate, sulfosuccinic monooctyl ester sodium salt, dialkyl succinylsuccinate sulfonate, fatty alcohol-polyoxyethylene ether, sodium alkyl benzene sulfonate, alkylnaphthalene sulfonate.
Described dispersant is selected from alkylphenol polyoxyethylene formaldehyde condensation products, sodium sulfate of polyethenoxy ether of fatty alcohol, lignosulfonates, polycarboxylate, naphthalenesulfonate formaldehyde condensation compound, to one or more the combination in methoxyl group fatty acyl amido benzene sulfonic acid.
Described disintegrant is selected from one or more the combination in sodium sulphate, calcium chloride, polyvinyl pyrrolidone, urea, sodium carboxymethyl starch, starch, sodium carbonate, ammonium sulfate, sodium chloride, bentonite.
Described binding agent is selected from one or more the combination in polyethylene glycol, carboxymethyl cellulose, polyvinyl alcohol, glucose, gelatin, soybean protein, sodium silicate, gypsum.
Described defoamer is selected from organosilicon ketone, C
8～10fatty alcohol, C
10～20the combination of one or more in representative examples of saturated aliphatic hydroxy acid and lipid thereof, ester-ether type compound, isooctanol.
Described carrier is selected from one or more the combination in kaolin, diatomite, precipitated calcium carbonate, white carbon, attapulgite, corncob cellulose, sepiolite, calcite, silica, pyrophyllite, xylitol, montmorillonite, potter's clay.
The preparation process of cyprodinil water dispersible granules of the present invention is as follows:
A, according to following each weight percentages of components, choose raw material: cyprodinil 10～80%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, defoamer 0.3～5%, binding agent 0.5～4%, carrier surplus.Except binding agent, other raw material mixes and obtains mixture;
B, after carrying out ultramicro grinding by above mixture, airslide disintegrating mill obtains female powder;
C, the female powder obtained after ultramicro grinding is taken to certain amount put into revolving fluid bed;
D, unlatching revolving fluid bed also slowly add the aqueous solution of binding agent to carry out granulation toward it;
E, etc. granulation dried after completing;
F, the shot-like particle of oven dry is sieved, obtained the cyprodinil water dispersible granules after analytical control.
The present invention has developed usings mineral substance, plant or contains the earthfill rockfill concrete riprap RCC material as carrier, adds auxiliary agent etc., and making it granulating and forming is water dispersible granules.This water dispersible granules can rapid disintegration disperse to form suspension in water.Water dispersible granules stable performance of the present invention, packing, storage, transportation are all very convenient.
Be compared with the prior art, advantage of the present invention and good effect are as follows.
1, neither need to use organic solvent, there is no again dust drift, can not burn, can not explode, can save petroleum resources and alleviate environmental pollution, produce and use procedure in to operator and Environmental security.
2, the preparation of high-load be can be processed into as required, packing, storage, cost of transportation saved.
3, physics, stable chemical nature, be difficult for decomposing rotten.
4, finished product is granular solids, good fluidity, and after toppling over, not sticky wall, can not remain in packing container and form secondary pollution.
5, available papery packing, be convenient to reclaim and destroy or natural degradation.
6, it is superfine that powder is disperseed rear diameter, is conducive to target and fully absorbs and play a role, and can reduce effective ingredient consumption, improves effect.
7, in the present invention due to the auxiliary agent that has added heterogeneity, make the present invention there is active component content high, environmental pollution is little, disintegration rate is fast, dispersive property reaches well heat storage steady performance, in use drug effect is high, safety is good.
The accompanying drawing explanation
Fig. 1 is preparation method's of the present invention process chart.
Embodiment
Essence for a better understanding of the present invention, below illustrate technology contents of the present invention with embodiment, but content of the present invention is not limited to this.
Embodiment 1:80% cyprodinil water dispersible granules.
Take the former powder 81% of cyprodinil, wetting agent lauryl sodium sulfate 4%, dispersant polycarboxylate 2,700 3%, sodium lignin sulfonate 4%, disintegrant sodium sulphate 5%, defoamer isooctanol 0.4%, binding agent sucrose 0.5%, carrier kaolin is mended to 100%; Cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, by formula, spray into adhesive solution, finally dry, obtain irregular particle shape water dispersible granules, then sieve and obtain uniform 80% cyprodinil water dispersible granules.Through the check active constituent content, be 80.8%, moisture≤2.0%, pH value 7.2, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 81%～95%.
Embodiment 2:70% cyprodinil water dispersible granules.
Take the former powder 71% of cyprodinil, wetting agent sulfosuccinic monooctyl ester sodium salt 5%, dispersant naphthalenesulfonate formaldehyde condensation compound 7%, lignin sulfonic acid calcium salt 3%, disintegrant sodium sulphate 10%, binding agent sucrose 0.5%, defoamer isooctanol 0.4%, carrier kaolin is mended to 100%; Cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, by formula, spray into adhesive solution, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 70% cyprodinil water dispersible granules.Through the check active constituent content, be 70.6%, moisture≤2.0%, pH value 7.3, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 81%～92%.
Embodiment 3:50% cyprodinil water dispersible granules.
Take the former powder 52% of cyprodinil, wetting agent lauryl sodium sulfate 4%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, sodium lignin sulfonate 4%, disintegrant urea 30%, binding agent sucrose 0.5%, defoamer organic silicone 0.3%, carrier diatomite is mended to 100%, cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, by formula, spray into adhesive solution, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 50% cyprodinil water dispersible granules.Through the check active constituent content, be 51.1%, moisture≤2.0%, pH value 7.2, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 80%～92%.
Embodiment 4:40% cyprodinil water dispersible granules.
Take the former powder 41% of cyprodinil, wetting agent fatty alcohol-polyoxyethylene ether 5%, dispersant is to methoxyl group fatty acyl amido benzene sulfonic acid 5%, sodium lignin sulfonate 6%, disintegrant sodium sulphate 20%, binding agent sucrose 0.5%, the fatty alcohol 1% of defoamer C8～10, the carrier precipitated calcium carbonate is mended to 100%, cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, spray into the aqueous solution of binding agent by formula, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 40% cyprodinil water dispersible granules.Through the check active constituent content, be 40.3%, moisture≤2.0%, pH value 7.4, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 80%～93%.
Embodiment 5:30% cyprodinil water dispersible granules.
Take the former powder 30.8% of cyprodinil, wetting agent fatty alcohol-polyoxyethylene ether 5%, dispersant is to methoxyl group fatty acyl amido benzene sulfonic acid 4%, lignin sulfonic acid calcium salt 6%, disintegrant sodium sulphate 30%, binding agent sucrose 0.5%, the fatty alcohol 1% of defoamer C8～10, carrier diatomite is mended to 100%, cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, by formula, spray into adhesive solution, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 30% cyprodinil water dispersible granules.Through the check active constituent content, be 30.0%, moisture≤2.0%, pH value 7.4, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 80%～91%.
Embodiment 6:20% cyprodinil water dispersible granules.
Take the former powder 21% of cyprodinil, wetting agent sulfosuccinic monooctyl ester sodium salt 7%, dispersant sodium sulfate of polyethenoxy ether of fatty alcohol 5%, sodium lignin sulfonate 4%, disintegrant urea 20%, binding agent sucrose 0.5%, the fatty alcohol 0.8% of defoamer C8～10, the carrier attapulgite is mended to 100%, cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, by formula, spray into adhesive solution, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 20% cyprodinil water dispersible granules.Through the check active constituent content, be 20.8%, moisture≤2.0%, pH value 7.4, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 80%～90%.
Embodiment 7:10% cyprodinil water dispersible granules.
Take the former powder 10.5% of cyprodinil, wetting agent sulfosuccinic monooctyl ester sodium salt 6%, dispersant sodium sulfate of polyethenoxy ether of fatty alcohol 4%, sodium lignin sulfonate 4%, disintegrant urea 40%, binding agent sucrose 0.5%, the fatty alcohol 0.8% of defoamer C8～10, the carrier sepiolite is mended to 100%, cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to double worm mixer (I), mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take again quantitative female powder in revolving fluidized bed pelletizer, by formula, spray into adhesive solution, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 10% cyprodinil water dispersible granules.Through the check active constituent content, be 10.1%, moisture≤2.0%, pH value 7.3, suspensibility >=90%, lasting foaming characteristic (1min)≤10mL, wetability≤1min, dust≤3.0%, the acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450～675g(active ingredient)/hm
2, preventive effect is 76%～90%.
The cyprodinil water dispersible granules that adopts formula of the present invention to process the results showed that this product has good dispersiveness, and active ingredient unrestrictedly suspends, and disintegration rate is fast, and disintegration time is less than 1min; Heat storage stability is good; And in use adhesion rate is high, the lasting period is long.The present invention's bactericidal potency in production application is high, through evidence, to the control efficiency of gray mold, all can reach more than 80%; Safety is good.
In the present invention, due to the auxiliary agent that has added heterogeneity, make the present invention have an active component content high, environmental pollution is little, and disintegration rate is fast, and dispersive property reaches well heat storage steady performance, and in use weeding usefulness is high, and safety is good.
Claims (1)
1. a cyprodinil water dispersible granules, it is characterized in that described water dispersible granules is comprised of the component of following percentage by weight: the former powder 10.5% of cyprodinil, wetting agent sulfosuccinic monooctyl ester sodium salt 6%, dispersant sodium sulfate of polyethenoxy ether of fatty alcohol 4%, sodium lignin sulfonate 4%, disintegrant urea 40%, binding agent sucrose 0.5%, defoamer C
8～10fatty alcohol 0.8%, the carrier sepiolite is mended to 100%, cyprodinil and all the other auxiliary agents except binding agent are pressed to formula rate to be mixed 20 minutes in Agravicmixer, again its mixture is put into to the first double worm mixer, mixing limit, limit is more than the airslide disintegrating mill pulverizing reaches particle diameter 1000 orders, by cyclopneumatic separator and sack cleaner, collect, finally in the second double worm mixer, again mix 30 minutes, obtain uniform female powder, accurately take again quantitative female powder in revolving fluidized bed pelletizer, spray into adhesive solution by formula, finally dry, obtain the water dispersible granules of irregular particle shape, then sieve and obtain uniform 10% cyprodinil water dispersible granules.
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| CN103210920A (en) * | 2013-03-24 | 2013-07-24 | 广东中迅农科股份有限公司 | Orysastrobin water dispersible granule and preparation method thereof |
| CN103210913B (en) * | 2013-03-24 | 2015-11-18 | 广东中迅农科股份有限公司 | Zoxamide water dispersible granule and preparation method thereof |
| ITVA20130040A1 (en) * | 2013-07-16 | 2015-01-17 | Lamberti Spa | ANTISCHIUMA IN POWDER |
| CN103444708A (en) * | 2013-08-01 | 2013-12-18 | 广东中迅农科股份有限公司 | Water dispersible granule containing chitosan |
| CN106417283A (en) * | 2016-09-06 | 2017-02-22 | 广东中迅农科股份有限公司 | Water-dispersible granules containing efficient disintegrant |
| CN107047569A (en) * | 2017-04-18 | 2017-08-18 | 广西南宁益土生物科技有限责任公司 | A kind of bactericidal composition containing cyprodinil and carvacrol |
| CN114503994A (en) * | 2022-04-02 | 2022-05-17 | 镇江先锋植保科技有限公司 | High-content cyprodinil water dispersible granule and preparation method thereof |
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| CN101617664A (en) * | 2009-07-07 | 2010-01-06 | 陕西蒲城县美邦农药有限责任公司 | Sterilization composite containing cyprodinil and epoxiconazole |
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| WO2008122782A1 (en) * | 2007-04-04 | 2008-10-16 | Syngenta Participation Ag | Method of pest and/or disease control |
| CN101617664A (en) * | 2009-07-07 | 2010-01-06 | 陕西蒲城县美邦农药有限责任公司 | Sterilization composite containing cyprodinil and epoxiconazole |
| CN102007913A (en) * | 2010-11-30 | 2011-04-13 | 陕西美邦农药有限公司 | Synergistic sterilizing composition containing Cyprodinil |
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