CN1663375A - Prochloraz-containing sterilizing micellar emulsion and its preparing method - Google Patents
Prochloraz-containing sterilizing micellar emulsion and its preparing method Download PDFInfo
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- CN1663375A CN1663375A CN 200510041687 CN200510041687A CN1663375A CN 1663375 A CN1663375 A CN 1663375A CN 200510041687 CN200510041687 CN 200510041687 CN 200510041687 A CN200510041687 A CN 200510041687A CN 1663375 A CN1663375 A CN 1663375A
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Abstract
The invention discloses a sterilizing micro emulsion contained prochloraz about 5-30%, solvent 5-15%, emulsifier 10-20%, antifreeze agent 5-10%, other as deionized water, which is 100% totally, or adding diniconazole or myclobutanil 2%-3% to the above formulation. The process for preparing is that, firstly putting prochloraz, diniconazole or myclobutanil into solvent under heating condition and mix around with adding antifreeze agent and emulsifier, then accelerating mixture and entering deionized water slowly after all that material is well-proportioned, whereafter continuing mixing and heating the materials up to 70 deg.C-80 deg.C, the production can be gained after mixture changes from W/O type to O/W type and presents liquid of uniform phase. The invention applies to prevention and cure the pathogen of pseudomonas, ascomycetes, basidiomycetes, pyrenophora and rostrum bacterium with high effect, with simple technique, safety to storage and transport, no danger to human and animals, much less pollution to environment.
Description
Technical field
The present invention relates to a kind of bactericide, relating in particular to a kind of mixture with Prochloraz or Prochloraz and other bactericide is bactericidal microemulsion of active ingredient and preparation method thereof.
Background technology
Along with the concern of people, require to reduce Pesticidal products and use the environmental hazard of bringing living environment.For adapting to this social desirability, in the Pesticidal products exploitation,, require pesticidal preparations to develop to solidification, water baseization direction paying attention to the exploitation low toxicity, efficiently in the pesticide new variety, pesticidal preparations being had higher requirement.
Prochloraz is a kind of broad-spectrum germicide, and the multiple diseases on field crop, fruit, vegetables, turf and the ornamental plants is had treatment and eradicant action, and fruit, vegetables are had anti-decomposition storage period.Prochloraz at home and abroad all is widely used at present.The mixture that mainly concentrates on Prochloraz or Prochloraz and other agricultural chemicals about the patent of Prochloraz is processed into missible oil, wetting powder, aqueous emulsion, the preparation of selling on the market is mainly 25% missible oil, 45% wetting powder, 25% aqueous emulsion and 45% aqueous emulsion, and not seeing has report and the patent that is processed into microemulsion.After Prochloraz is processed into microemulsion, can reduce the preparation cost to a great extent, improve drug effect, reduce the usage amount of organic solvent and, thereby reduce Prochloraz residual in agricultural product, improve agricultural product quality the pollution of environment.Therefore, the Prochloraz microemulsion of " efficient, low toxicity, safety, economy " will substitute Prochloraz missible oil to a great extent, in agricultural product production with store especially and play a significant role in the production and processing of high added value agricultural product.The successful development of Prochloraz microemulsion and application will have great social benefit and economic benefit.
Summary of the invention
In order to solve defective or the deficiency in the above-mentioned background technology, one object of the present invention is to provide a kind of bactericidal microemulsion that contains Prochloraz and preparation method thereof, this Environmental compatibility of bactericidal microemulsion form that contains Prochloraz is good, can embody fully that Prochloraz is efficient, the characteristics of low toxicity.
Realize that foregoing invention purpose technical solution is: a kind of bactericidal microemulsion that contains Prochloraz, it is characterized in that, this bactericidal microemulsion contains the raw material of following mass percent: Prochloraz 5～30%, solvent 5～15%, emulsifier 10～20%, antifreeze 5～10%, all the other are deionized water, and the summation of above-mentioned raw materials is 100%.
Other some characteristics of the present invention are that described emulsifier is selected from the mixture of polyoxyethylene (12) octyl phenol ether, Nonyl pheno (13) ether and calcium dodecyl benzene sulfonate.
Described antifreeze is selected from one or more in methyl-sulfoxide, ethanol, ethylene glycol or the cyclohexanone.
The above-mentioned preparation method who contains the bactericidal microemulsion of Prochloraz, it is characterized in that, press the above-mentioned raw materials proportioning and prepare raw material, under heating condition, earlier Prochloraz is joined heating for dissolving in the solvent, treat to stir after Prochloraz fully dissolves, add antifreeze and emulsifier during stirring, after treating that above-mentioned mixing of materials evenly, accelerate mixing speed, and slowly add deionized water, continue subsequently to keep and stir and material is heated to 70 ℃～80 ℃, wait to stir system and transfer the O/W type to, be and be cooled to room temperature behind the homogeneous liquid and can make the bactericidal microemulsion that contains Prochloraz from w/o type.
The above-mentioned chief editor's method that contains the bactericidal microemulsion of Prochloraz can also be under heating condition also joins 2～3% alkene azoles alcohol or nitrile bacterium azoles in the solvent with the Prochloraz heating for dissolving, is mixed with the bactericidal microemulsion that contains Prochloraz and alkene azoles alcohol or nitrile bacterium azoles.
The bactericidal microemulsion of Prochloraz microemulsion of the present invention and Prochloraz is a kind of water base chemical preparation, compared with prior art, the Environmental compatibility of its preparation form is good, be applicable to that control Fusarium, Saccharomyces, Basidiomycotina, nuclear cavity Pseudomonas and shell pin belong to germ, germ there is higher control efficiency, simple, storing safety that method is produced is to people, animal safety, little to environmental influence.
Embodiment
The preparation of embodiment 1:10% Prochloraz microemulsion
Take by weighing 10.6 kilograms of the former medicines of 95% Prochloraz, add in 6 kilograms of solvents, stirring, heating are dissolved it fully, under agitation add 2 kilograms of polyoxyethylene (12) octyl phenol ether, 3 kilograms of Nonyl pheno (13) ether and 1.5 kilograms of calcium dodecyl benzene sulfonates (DBS-Ca), mix, keep then under agitation adding 8 kilograms of cyclohexanone and 2.5 kilograms of ethylene glycol in addition, mix back adding deionized water under high-speed stirred and be assigned to 100 kilograms; Be heated to 75 ℃ after mixing, wait to stir system and transfer the O/W type to, be cooled to room temperature after being homogeneous liquid, promptly get 10% Prochloraz microemulsion from w/o type.
The preparation of embodiment 2:20% Prochloraz microemulsion
Take by weighing 21.2 kilograms of the former medicines of 95% Prochloraz, add in 12 kilograms of solvents, stirring, heating are dissolved it fully, under agitation add 6 kilograms of polyoxyethylene (12) octyl phenol ethers (OP-12), 4 kilograms of Nonyl pheno (13) ether and 2.5 kilograms of calcium dodecyl benzene sulfonates (DBS-Ca), mix, under agitation add 3.5 kilograms of cyclohexanone and 2 kilograms of ethylene glycol, mix back adding deionized water under high-speed stirred and be assigned to 100 kilograms; Be heated to 75 ℃ after mixing, system to be stirred is cooled to room temperature after being homogeneous liquid, promptly gets 20% Prochloraz microemulsion.
The preparation of embodiment 3:30% Prochloraz microemulsion
Take by weighing 31.6 kilograms of the former medicines of 95% Prochloraz, add in 17 kilograms of solvents, stir, heating is dissolved it fully, under agitation add 8 kilograms of polyoxyethylene (12) octyl phenol ethers (OP-12), 5 kilograms of Nonyl pheno (13) ether and 3 kilograms of calcium dodecyl benzene sulfonates (DBS-Ca), mix, under agitation add 3 kilograms of cyclohexanone and 2.5 kilograms of ethylene glycol, mix back adding deionized water under stirring fast and be assigned to 100 kilograms, be heated to 75 ℃ after mixing, wait to stir system and transfer the O/W type to from w/o type, be cooled to room temperature after being homogeneous liquid, promptly get 30% Prochloraz microemulsion.
The preparation of embodiment 4:12% Prochloraz myclobutanil fungicidal microemulsion
Take by weighing 10.6 kilograms of the former medicines of 95% Prochloraz, nitrile bacterium azoles adds in 8 kilograms of solvents for (90%) 2.3 kilogram, stir, heating is dissolved it fully, under agitation add 7 kilograms of polyoxyethylene (12) octyl phenol ethers (OP-12), 3 kilograms of Nonyl pheno (13) ether and 1.5 kilograms of calcium dodecyl benzene sulfonates (DBS-Ca), mix, under agitation add 3 kilograms of cyclohexanone and 4 kilograms of ethylene glycol, mix back adding deionized water under stirring fast and be assigned to 100 kilograms, be heated to 75 ℃ after mixing, wait to stir system and transfer the O/W type to from w/o type, be cooled to room temperature after being homogeneous liquid, promptly get 12% Prochloraz myclobutanil fungicidal microemulsion.
The preparation of embodiment 5:10% Prochloraz alkene azoles alcohol bactericidal microemulsion
Take by weighing 8.5 kilograms of the former medicines of 95% Prochloraz, alkene azoles alcohol adds in 7.5 kilograms of solvents for (91%) 2.2 kilogram, stirring, heating are dissolved it fully, under agitation add 6 kilograms of polyoxyethylene (12) octyl phenol ethers (OP-12), 3 kilograms of Nonyl pheno (13) ether and 2 kilograms of calcium dodecyl benzene sulfonates (DBS-Ca), mix, under agitation add 4 kilograms of cyclohexanone and 2.5 kilograms of ethylene glycol, mix back adding deionized water under stirring fast and be assigned to 100 kilograms; Be heated to 75 ℃ after mixing, wait to stir system and transfer the O/W type to, be cooled to room temperature after being homogeneous liquid, promptly get 10% Prochloraz alkene azoles alcohol bactericidal microemulsion from w/o type.
Embodiment 6: present embodiment adopts methyl-sulfoxide alternate collar hexanone as different from Example 5, and its consumption is all constant, can obtain 10% Prochloraz alkene azoles alcohol bactericidal microemulsion equally.
Test examples 1: preparation stability test
The stability of emulsion test
Get 1mL20% Prochloraz micro emulsion, 12% Prochloraz myclobutanil fungicidal microemulsion and 10% Prochloraz alkene azoles alcohol bactericidal microemulsion respectively, add in the 200mL342mg/L standard hard water, under 30 ℃, left standstill 30 minutes.Emulsion keeps milky white state not have grease suspension or solid precipitation, and can mix with arbitrary proportion with water.
Cold storage stability test
Get 30mL20% Prochloraz micro emulsion, 12% Prochloraz myclobutanil fungicidal microemulsion and 10% Prochloraz alkene azoles alcohol bactericidal microemulsion respectively,, sealing is placed on subzero 10 ℃ of refrigerator and cooled and freezes, take out to place under the room temperature after 24 hours and observe, preparation recovers transparent by caking, repeated multiple times, good reproducibility.Other gets 20% Prochloraz microemulsion 30mL and packs in the colourless transparent glass port grinding bottle, and sealing is placed on 0～10 ℃ of refrigerator and cooled and hid for 2 weeks, and it is transparent that preparation keeps, and thing solid precipitation or crystallization are separated out.
The heat storage stability test
Respectively a certain amount of 20% Prochloraz micro emulsion, 12% Prochloraz myclobutanil fungicidal microemulsion and 10% Prochloraz alkene azoles alcohol bactericidal microemulsion are packed into and seal in the ampoule bottle, place under 54 ± 2 ℃ of conditions and stored for 2 weeks, take out cooling back weighing, sample to the quality of the pharmaceutical preparations before and after storing remains unchanged detects its active constituent content.The analysis of effective component method
Adopt the content of active ingredient Prochloraz, alkene azoles alcohol, nitrile bacterium azoles in the high-efficient liquid phase chromatogram technique analysis preparation.Chromatographic condition is:
Chromatographic column: C
18Post; Detector: diode array monitor; Detect wavelength: 235nm; Flowing phase: methyl alcohol+water=60+40 (V/V); Flow velocity: 1mL/min; Sampling volume: 5 μ L; Quantitative approach: external standard method.
Testing result is as follows: be 2.8% in the 20% Prochloraz microemulsion; In the 12% Prochloraz myclobutanil fungicidal microemulsion, the average resolution ratio of Prochloraz is 2.0%, and the average resolution ratio of nitrile bacterium azoles is 2.9%; The average resolution ratio of Prochloraz is 2.6% in the 10% Prochloraz alkene azoles alcohol bactericidal microemulsion, and the average resolution ratio of alkene azoles alcohol is 3.5%.The preparation outward appearance keeps homogeneous phase transparent.Result of the test proves that the prepared microemulsion formulation heat storage stability of the present invention is qualified.
Test examples 2:20% Prochloraz microemulsion, 12% Prochloraz myclobutanil fungicidal microemulsion, 10% Prochloraz alkene azoles alcohol bactericidal microemulsion are to the biologicall test of pears apple scab
Measured the virulence of embodiment 2, embodiment 4, embodiment 5 pairs of pears apple scabs with growth rate method,
The results are shown in Table 1:
Table 1 preparation is to the toxicity test of pears apple scab bacterium
| Medicament | Virulence regression equation | ?EC 50(mg/kg) | Synergism value SR |
| 20% Prochloraz microemulsion | ????Y＝1.5290+3.3010x | ??11.301 | |
| 12% Prochloraz myclobutanil fungicidal microemulsion | ????Y＝4.1251+1.0644x | ??6.637 | ????1.62 |
| 10% Prochloraz alkene azoles alcohol bactericidal microemulsion | ????Y＝4.0899+1.7810x | ??3.244 | ????1.56 |
| 25% Prochloraz EC | ????Y＝3.1080+1.7140x | ??12.702 | |
| 12.5% nitrile bacterium azoles EC | ????Y＝4.0488+1.2136x | ??6.0789 | |
| 12.5% alkene azoles alcohol EC | ????Y＝4.8659+0.7804x | ??1.4856 |
Annotate: SR＜0.5 is an antagonism, and 0.5＜SR＜1.5 are summation action, and 1.5＜SR is a synergistic function.
Test examples 3: with embodiment 2,4,5, in the microemulsion that makes carry out the control in field grape grey mould test of pesticide effectiveness
Giving birth to the agricultural chemicals field trial criterion of surveying the chamber formulation with reference to The Institute for the Control of Agrochemicals of the Ministry of Agriculture,PRC carries out.
Reagent agent: 20% Prochloraz microemulsion, 12% Prochloraz myclobutanil fungicidal microemulsion, 10% Prochloraz alkene azoles alcohol bactericidal microemulsion;
12.5% alkene azoles alcohol EC (production of the green shield biological products in Pucheng Co., Ltd);
12.5% nitrile bacterium azoles EC (Zhejiang Province Yifan Chemical Co., Ltd).
For studying thing and controlling object: grape, gray mold
Test procedure: test being located at vineyard, Yangling District Li Tai township, test establish 1000 times of 20% Prochloraz microemulsions, 1500 times of 12% Prochloraz myclobutanil fungicidal microemulsions, 1200 times of 10% Prochloraz alkene azoles alcohol bactericidal microemulsions, 25% Prochloraz EC1000 doubly, 12.5% nitrile bacterium azoles EC1500 doubly, 12.5% alkene azoles alcohol EC1200 doubly and clear water contrast totally 7 processing.Every processing repeats 4 times, totally 28 sub-districts, and district's group is arranged at random, every little 8 strains.5 strains of fixing a point of every sub-district divide East, West, South, North, middle five positions investigation blade incidence, 10 leaves of every some investigation, classification record incidence before the dispenser.Before the dispenser medicament is diluted to desired concn, carries out conventional spray with workers and peasants-16 type knapsack hand sprayer, every mu of spouting liquid 75kg.Every medicine of spray in 7～10 days, spray altogether 3 times.7 days " Invest, Then Investigate " incidences of last spray medicine calculate the disease index increasing value, calculate control efficiency with the disease index increasing value.Result of the test sees Table 2.
From table 2 result of the test as can be known, when extension rate was identical, the preventive effect of 20% Prochloraz microemulsion was better than 25% Prochloraz EC; The preventive effect of 12% Prochloraz myclobutanil fungicidal microemulsion and 10% Prochloraz alkene azoles alcohol bactericidal microemulsion is better than the preventive effect of each single agent under the suitable situation of using dosage.
Table 2 preparation is to the field control effectiveness test of grape grey mould Yang Ling Shaanxi 2004.07 as a result
| Medicament | Extension rate | Disease refers to increasing value | Control efficiency |
| 20% Prochloraz microemulsion | ????1000 | ????8.57 | ????80.3 |
| 12% Prochloraz myclobutanil fungicidal microemulsion | ????1500 | ????3.83 | ????91.2 |
| 10% Prochloraz alkene azoles alcohol bactericidal microemulsion | ????1200 | ????5.79 | ????86.7 |
| 25% Prochloraz EC | ????1000 | ????10.53 | ????75.8 |
| 12.5% nitrile bacterium azoles EC | ????1500 | ????11.18 | ????74.3 |
| 12.5% alkene azoles alcohol EC | ????1200 | ????10.27 | ????76.4 |
| The clear water contrast | ????43.50 |
Annotate: each is handled and repeats 4 times, and district's group is arranged every sub-district, field 5 strain grapes of fixing a point at random; Every mu of water consumption 75kg.
From the result of the test of above experimental example as can be known, the bactericidal microemulsion that contains Prochloraz has the better prevention effect to germ.
Claims (6)
1. bactericidal microemulsion that contains Prochloraz, it is characterized in that, this microemulsion contains the raw material of following mass percent: Prochloraz 5～30%, solvent 5～15%, emulsifier 10～20%, antifreeze 5～10%, and all the other are deionized water, the summation of above-mentioned raw materials is 100%.
2. the bactericidal microemulsion that contains Prochloraz as claimed in claim 1 is characterized in that, described emulsifier is selected from the mixture of polyoxyethylene (12) octyl phenol ether, Nonyl pheno (13) ether and calcium dodecyl benzene sulfonate.
3. contain the bactericidal microemulsion of Prochloraz according to claim 1, it is characterized in that, described antifreeze is selected from one or more in methyl-sulfoxide, ethanol, ethylene glycol or the cyclohexanone.
4. the bactericidal microemulsion that contains Prochloraz as claimed in claim 1 is characterized in that, this bactericidal microemulsion also contains alkene azoles alcohol or nitrile bacterium azoles 2～3%.
5. preparation method who contains the Prochloraz bactericidal microemulsion, it is characterized in that, this method is at first prepared raw material by the raw material proportioning of claim 1, under heating condition, earlier Prochloraz is joined heating for dissolving in the solvent, treat to stir after Prochloraz fully dissolves, add antifreeze and emulsifier during stirring, after treating that above-mentioned mixing of materials evenly, accelerate mixing speed, and slowly add deionized water, continue subsequently to keep and stir and material is heated to 70 ℃～80 ℃, wait to stir system and transfer the O/W type to, be and be cooled to room temperature behind the homogeneous liquid and can make the microemulsion that contains Prochloraz from w/o type.
6. as method as described in the claim 5, it is characterized in that, under heating condition, also 2～3% alkene azoles alcohol or nitrile bacterium azoles are joined in the solvent, be mixed with the bactericidal microemulsion that contains Prochloraz and alkene azoles alcohol or nitrile bacterium azoles with the Prochloraz heating for dissolving.
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Cited By (8)
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| CN101971850A (en) * | 2010-11-21 | 2011-02-16 | 陕西美邦农药有限公司 | Bactericidal composite containing cyproconazole |
| CN102090410A (en) * | 2009-12-14 | 2011-06-15 | 安阳市安林生物化工有限责任公司 | Myclobutanil-prochloraz hot fog |
| CN102524282A (en) * | 2011-12-23 | 2012-07-04 | 江阴苏利化学有限公司 | Bactericidal composition containing prochloraz and flutolanil |
| CN101755733B (en) * | 2009-11-04 | 2013-06-05 | 广西田园生化股份有限公司 | Prochloraz electrostatic oiling agent |
| CN105941450A (en) * | 2016-07-12 | 2016-09-21 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Bactericidal composition containing metconazole and prochloraz |
| CN107853319A (en) * | 2017-12-13 | 2018-03-30 | 海南大学 | 10% Prochloraz oxazole fluosilicate micro emulsion and preparation method thereof |
| CN110999902A (en) * | 2019-11-13 | 2020-04-14 | 南京华洲药业有限公司 | Nanometer water agent containing prochloraz and processing method thereof |
| CN115624032A (en) * | 2022-07-12 | 2023-01-20 | 江苏剑牌农化股份有限公司 | Preparation method of prochloraz-epoxiconazole water emulsion |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101755733B (en) * | 2009-11-04 | 2013-06-05 | 广西田园生化股份有限公司 | Prochloraz electrostatic oiling agent |
| CN102090410A (en) * | 2009-12-14 | 2011-06-15 | 安阳市安林生物化工有限责任公司 | Myclobutanil-prochloraz hot fog |
| CN101971850A (en) * | 2010-11-21 | 2011-02-16 | 陕西美邦农药有限公司 | Bactericidal composite containing cyproconazole |
| CN101971850B (en) * | 2010-11-21 | 2013-03-13 | 陕西美邦农药有限公司 | Bactericidal composition containing cyproconazole |
| CN102524282A (en) * | 2011-12-23 | 2012-07-04 | 江阴苏利化学有限公司 | Bactericidal composition containing prochloraz and flutolanil |
| CN105941450A (en) * | 2016-07-12 | 2016-09-21 | 安徽省农业科学院植物保护与农产品质量安全研究所 | Bactericidal composition containing metconazole and prochloraz |
| CN107853319A (en) * | 2017-12-13 | 2018-03-30 | 海南大学 | 10% Prochloraz oxazole fluosilicate micro emulsion and preparation method thereof |
| CN107853319B (en) * | 2017-12-13 | 2019-08-23 | 海南大学 | 10% Prochloraz oxazole fluosilicate micro emulsion and preparation method thereof |
| CN110999902A (en) * | 2019-11-13 | 2020-04-14 | 南京华洲药业有限公司 | Nanometer water agent containing prochloraz and processing method thereof |
| WO2021093269A1 (en) * | 2019-11-13 | 2021-05-20 | 南京华洲药业有限公司 | Nano aqueous agent comprising prochloraz and processing method therefor |
| CN115624032A (en) * | 2022-07-12 | 2023-01-20 | 江苏剑牌农化股份有限公司 | Preparation method of prochloraz-epoxiconazole water emulsion |
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