CN101263807B - Pyridaben clofentezine water dispersion granule and preparation thereof - Google Patents
Pyridaben clofentezine water dispersion granule and preparation thereof Download PDFInfo
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- CN101263807B CN101263807B CN2008100666341A CN200810066634A CN101263807B CN 101263807 B CN101263807 B CN 101263807B CN 2008100666341 A CN2008100666341 A CN 2008100666341A CN 200810066634 A CN200810066634 A CN 200810066634A CN 101263807 B CN101263807 B CN 101263807B
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- pyridaben
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- clofentezine
- dispersible granule
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Abstract
The invention relates to a pesticide water dispersible granule and the preparation method of the pesticide water dispersible granule; the granule has active components pyridaben and clofentezine, and accessories; the weight account ratio of the two active components pyridaben and clofentezine ranges from 1:10 to 10:1; the accumulated mass percentage of pyridaben and clofentezine is between 5% to 90%. The preparation method is that, after well mixing, ultrafine grinding, granulation and drying, the materials are processed into the water dispersible granule. The granule has the advantages that, the drawbacks of wettable powder and suspension agent are overcome; during processing and using process, consumption cost of farmers and environmental pollution are reduced; the invention has the advantages of high content of active components, fast disintegration speed, good dispersion property, high heat storage stability and other advantages; during usage, acaricidal effect is good and safety is high.
Description
Technical field
The present invention relates to a kind of pesticide water dispersible granules and preparation method thereof, exactly is the pyridaben clofentezine water dispersible granule.
Background technology
The objective of the invention is to provides a kind of efficient mite water dispersible granules that kills for the mite pest of effectively killing in the crops.Another object of the present invention is to provide the preparation method of above-mentioned pyridaben clofentezine water dispersible granule.
Pyridaben is a kind of common miticide, and the flour mite on fruit tree, vegetables, tea tree, tobacco and the ornamental plants, aphid, leafhopper and thrips insect are had splendid control efficiency.But because long-term the use, insect increases gradually to the resistance of pyridaben, and control efficiency descends gradually, is badly in need of a kind of synergism compound preparation and improves drug effect, delays the generation of pest resistance.
Four mite piperazines are the special efficacy miticide, mainly as ovicide, the juvenile stage insect are had certain preventive effect, and long lasting effect is arranged.But to becoming the mite weak effect, quick-acting is poor, to other insect nearly unavailable.
Both are composite, have complementary advantages, be one of acaricidal approach of design ideal.But, the former medicine of four mite piperazines is the former powder of solid, water insoluble, also be insoluble to most of organic solvents, generally be processed into suspending agent or wetting powder and use, wherein the suspending agent active component content is generally 10%, 10% 4 mite that produces as Kesheng Group Co., Ltd., Jiangsu Prov. suspending agent of rattling away, the content of pyridaben and four mite piperazines is respectively 7% and 3%, and registration card number is LS96557.The wetting powder active component content is generally 5%-16%, and as the 5% pyridaben wetting powder that Hunan Province Yuanlongping Agricultural Hi-Tech Co., Ltd. produces, the content of pyridaben and four mite piperazines is respectively 2.5% and 2.5%, and registration card number is LS2000254; The 16% pyridaben wetting powder that Hainan decent job middle peasant high-tech share Co., Ltd produces, the content of pyridaben and four mite piperazines is respectively 7% and 9%, and registration card number is LS20040161.
Above-mentioned suspending agent and wetting powder owing to use a large amount of auxiliary material and liquid and powder itself, have that active component content is low, poor stability, easy contaminated environment, be detrimental to health, shortcomings such as cost height and accumulating, use inconvenience.
The present invention is processed into water dispersible granules with pyridaben and four mite piperazines.Water dispersible granules is the agricultural chemicals novel formulation that grows up phase early 1980s, be to add suitable auxiliary agent with natural or synthetic carrier, form through the special process granulation, disintegration soon, dispersion in water, form the dispersion of higher suspension, it is low to have good dispersion, suspensibility height, active constituent content height, stable, easy to use, the no dust of physical and chemical performance, packing charge, characteristics such as storing and transporting security.Water dispersible granules has the advantage of solid pharmaceutical preparation (granula and wetting powder) and liquid preparation (missible oil and suspending agent etc.), overcome the shortcoming of suspending agent and wetting powder, had both the low advantage of environmental protection and use cost, being the most comprehensive product of combination property in the current pesticidal preparations, is a main trend of pesticidal preparations development.
Summary of the invention
The objective of the invention is to be achieved through the following technical solutions:
Pyridaben clofentezine water dispersible granule of the present invention, contain active component pyridaben and four mite piperazine and auxiliary materials, the ratio of weight and number of pyridaben and two kinds of active components of four mite piperazines is: 1: 10 to 10: 1, the mass percent of pyridaben and four the two accumulation of mite piperazine was between 5-90%.
Preferred version of the present invention is: the mass percent of pyridaben and four the two accumulation of mite piperazine is between 20-90%.
Described auxiliary material is a wetting agent, dispersant, disintegrant, bonding agent, carrier etc.
Described dispersant; wetting agent is selected from saponin; lignosulfite; the hydrolysate of animal waste; alkyl sulfate; alkylsulfonate; alkylbenzenesulfonate; alkylphosphonic; alkene sulfonate; alkyl sulfonic acid alkali metal salt and ammonium salt; alkylphenol-polyethenoxy base sulphate; alkylphenol polyoxyethylene succinate sulfonate; the alkylphenol polyoxyethylene formaldehyde condensation products; succinic acid half ester sulfonate fatty acid amide; the N methyl taurine sodium salt; sodium sulfate of polyethenoxy ether of fatty alcohol; lignosulfonates; alkylphenol polyoxyethylene sulphate; alkylnaphthalene sulfonate; petroleum sodium sulfonate; the alkyl biphenyl sodium naphthalene sulfonate; naphtholsulfonic acid formaldehyde condensation products sodium salt; fatty alcohol-polyoxyethylene ether; the Fluhyzon formaldehyde condensation products; polycarboxylate, or above two or more mixture.
Described disintegrant is selected from sulphur ammonium, calcium chloride, salt, magnesium chloride, urea, bentonite, aluminium chloride, sodium sulphate, attapulgite, white carbon, polyvinyl pyrrolidone, hydroxypropyl cellulose, starch, crosslinked sodium carboxymethylstarch, or above two or more mixture.
Described bonding agent is selected from CMC, PVA, EVA, starch, dextrin, gum Arabic, soybean protein, arm protein, gelatine, gelatin, sodium silicate, gypsum, shellac, pitch, paraffin, wood perfume, polyvinyl acetate, polyvinyl alcohol, rosin, denaturated sodium polyacrylate, polyethylene glycol, lignin, or above two or more mixture.
Described carrier is selected from kaolin, corncob cellulose, soybean, tobacco, rice husk, sulphur, acorn, precipitated calcium carbonate, bentonite, atlapulgite, diatomite, white carbon, concavo-convex rod, clay, montmorillonite, float stone, potter's clay, quicklime, magnesium lime, phosphorus lime, pyrophillite, calcite, dolomite, gypsum, sepiolite, silica, mica, talcum, mud coal, or above two or more mixture.
More than all auxiliary materials all are known substances, also be material commonly used and that know in the pesticidal preparations processing.
The invention provides a kind of 70% pyridaben clofentezine water dispersible granule, be mixed with by following raw materials by weight percentage:
Pyridaben 40%
Four mite piperazines 30%
Calcium lignosulfonate 5%
Sodium alkyl sulfate 7%
Polyvinyl pyrrolidone 2%
Gum Arabic 0.5%
White carbon 15.5%.
The present invention also provides a kind of 90% pyridaben clofentezine water dispersible granule, is mixed with by following raw materials by weight percentage:
Pyridaben 40%
Four mite piperazines 50%
Calcium lignosulfonate 3%
Succinic acid half ester sulfonate fatty acid amide 2%
Polyvinyl pyrrolidone 0.5%
Gum Arabic 0.5%
White carbon 4%.
Preparation method of the present invention is:
1, chooses raw material according to the prescription of pyridaben clofentezine water dispersible granule, calculate each composition consumption, weighing;
2, raw material blending that will be except that bonding agent, ultra-fine grinding obtains female powder;
3, it is stand-by bonding agent to be made into a certain proportion of aqueous solution;
4, female powder is mixed according to prescription and adhesive solution;
5, with the granulation on comminutor of above mixture;
6, above shot-like particle is drying to obtain the pyridaben clofentezine water dispersible granule.
Known equipment is all used in the preparation of pyridaben clofentezine water dispersible granule of the present invention.
Advantage of the present invention is as follows:
This formulation is easy to use except having, cost is low, to user and the Environmental security, also have the following advantages:
1, the disintegration rate of particle is fast;
2, fast, dispersed uniformly;
3, there is not bulky grain after the dispersion, not blocking sprayer;
4, heat storage stability is good;
5, suspension stability is good;
6, good fluidity;
7, there is not dust;
8, foam seldom;
9, soup has good wetability, permeability and plate-out ability.
Concrete embodiment
In order to understand the present invention better, describe the technology contents of invention below in detail with example, but embodiment of the present invention are not limited to these examples.
Embodiment 1, produces 5% pyridaben clofentezine water dispersible granule
According to the former medicine 2.5% of pyridaben (folding hundred), former medicine 2.5% of four mite piperazines (folding hundred) and alkyl polyoxyethylene ether 10%, alkylsulfonate 8%, urea 3%, CMC 1%, kaolin is supplied 100% proportioning and is calculated each amounts of components, and weighing, component mixing that will be except that bonding agent, prepare female powder through comminution by gas stream,, carry out extruder grain then mixing of the bonding agent aqueous solution of female powder and 3%, drying, screening, analytical control warehouse-in obtain 5% pyridaben clofentezine water dispersible granule, yield 96.1%.
Embodiment 2, produce 20% pyridaben clofentezine water dispersible granule
According to the former medicine 12% of pyridaben (folding hundred), former medicine 8% of four mite piperazines (folding hundred) and alkylnaphthalene sulfonate 8%, saponin 2%, sulphur ammonium 3%, PVA 1%, bentonite is supplied 100% proportioning and is calculated each amounts of components, and weighing, component mixing that will be except that bonding agent prepares female powder through comminution by gas stream, with mixing of the bonding agent aqueous solution of female powder and 3%, carry out rotary table granulation, drying then, screening, the analytical control warehouse-in obtains 20% pyridaben clofentezine water dispersible granule, single yield 70.7%, clout can recycle, and the accumulation yield can reach more than 95%.
Embodiment 3, produce 70% pyridaben clofentezine water dispersible granule
According to the former medicine 40% of pyridaben (folding hundred), former medicine 30% of four mite piperazines (folding hundred) and calcium lignosulfonate 5%, sodium alkyl sulfate 7%, polyvinyl pyrrolidone 2%, gum Arabic 0.5%, white carbon is supplied 100% proportioning and is calculated each amounts of components, and weighing, component mixing that will be except that bonding agent prepares female powder through comminution by gas stream, with mixing of the bonding agent aqueous solution of female powder and 3%, carry out fluidized bed prilling, drying then, screening, the analytical control warehouse-in obtains 70% pyridaben clofentezine water dispersible granule, single yield 68.7%, clout can recycle, and the accumulation yield can reach more than 95%.
Embodiment 4, produce 90% pyridaben clofentezine water dispersible granule
According to the former medicine 40% of pyridaben (folding hundred), former medicine 50% of four mite piperazines (folding hundred) and calcium lignosulfonate 3%, succinic acid half ester sulfonate fatty acid amide 2%, polyvinyl pyrrolidone 0.5%, gum Arabic 0.5%, white carbon is supplied 100% proportioning and is calculated each amounts of components, and weighing, component mixing that will be except that bonding agent, prepare female powder through comminution by gas stream,, carry out extruder grain then mixing of the bonding agent aqueous solution of female powder and 3%, drying, screening, analytical control warehouse-in obtain 90% pyridaben clofentezine water dispersible granule, yield 95.0%.
Embodiment 5, and present embodiment is the field efficacy experiment of embodiment 4.With 90% pyridaben clofentezine water dispersible granule of the present invention the indoor harmacological effect of two spotted spider mite being tested below is that example illustrates advantage of the present invention.
This experiment adopts embodiment 4 to make 16% pyridaben wetting powder of 90% pyridaben clofentezine water dispersible granule and the production of Hainan decent job middle peasant high-tech share Co., Ltd, dilute 4500 times and 800 times respectively, carry out the indoor harmacological effect contrast experiment at two spotted spider mite, the 3rd, 7,14 day investigation insect population rate that goes down after medication.Experimental result shows: the effect of 90% pyridaben clofentezine water dispersible granule is better than 16% pyridaben wetting powder, and the lasting period is long.Experimental result sees Table 1.
Table 1 pyridaben clofentezine water dispersible granule and wetting powder preventive effect experimental result
| Preparation | Extension rate | 3 days insect populations rate that goes down | 7 days insect populations rate that goes down | 14 days insect populations rate that goes down |
| 90% pyridaben clofentezine water dispersible granule | 4500? | ?60.25? | ?84.21? | 92.90? |
| 16% pyridaben wetting powder | 800? | ?55.91? | ?81.27? | 87.16? |
Claims (2)
1. a pyridaben clofentezine water dispersible granule is characterized in that, is mixed with by following raw materials by weight percentage:
Pyridaben 40%
Four mite piperazines 30%
Calcium lignosulfonate 5%
Sodium alkyl sulfate 7%
Polyvinyl pyrrolidone 2%
Gum Arabic 0.5%
White carbon 15.5%.
2. a pyridaben clofentezine water dispersible granule is characterized in that, is mixed with by following raw materials by weight percentage:
Pyridaben 40%
Four mite piperazines 50%
Calcium lignosulfonate 3%
Succinic acid half ester sulfonate fatty acid amide 2%
Polyvinyl pyrrolidone 0.5%
Gum Arabic 0.5%
White carbon 4%.
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| US20110108232A1 (en) * | 2009-10-06 | 2011-05-12 | The Penn State Research Foundation | Binder material |
| CN102726412B (en) * | 2012-06-09 | 2016-04-06 | 广东中迅农科股份有限公司 | Pyridaben water dispersible granule and preparation method thereof |
| CN103548834A (en) * | 2013-10-22 | 2014-02-05 | 杭州市农业科学研究院 | Compound pesticide for preventing and treating tea mites and using method of compound pesticide |
| CN107410307B (en) * | 2016-05-23 | 2020-09-25 | 山东潍坊润丰化工股份有限公司 | Butylbenzone-ethyl water dispersible granule and preparation method thereof |
| CN115669654A (en) * | 2022-11-22 | 2023-02-03 | 新沂市泰松化工有限公司 | Pyridaben water dispersible granule and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101015299A (en) * | 2006-11-01 | 2007-08-15 | 张少武 | Water-dispersed granule pesticide composition and making method thereof |
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| CN101015299A (en) * | 2006-11-01 | 2007-08-15 | 张少武 | Water-dispersed granule pesticide composition and making method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 代兴发.80%四螨嗪WG防治柑橘红蜘蛛田间药效试验.《农技服务》.2007,第24卷(第10期),第58页最后一段. * |
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| 说明书第4页第2-3段 |
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