CN104012527B - Chlorpyrifos micro emulsion and application thereof - Google Patents
Chlorpyrifos micro emulsion and application thereof Download PDFInfo
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- CN104012527B CN104012527B CN201410279310.1A CN201410279310A CN104012527B CN 104012527 B CN104012527 B CN 104012527B CN 201410279310 A CN201410279310 A CN 201410279310A CN 104012527 B CN104012527 B CN 104012527B
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Abstract
The invention discloses a kind of chlorpyrifos micro emulsion, comprise the composition of following percentage by weight: chlopyrifos 10-50%, emulsifier 15-25%, cosolvent 5-15%, water surplus.The present invention is matrix with water, decreases the use of aromatic hydrocarbons organic solvent, and adopts environment-friendly type organic solvent as far as possible, reduce preparation to the toxicity of people and animals and stimulation, alleviate the harm of preparation to crop, reduce the pollution to environment, improve the safety in utilization of preparation.By the selection to auxiliary agent, microemulsion formulation of the present invention has that environment compatibility is good, production cost is low, safety is high, stability is strong, good drug efficacy, the feature high to insect preventive effect, overcomes and makes up the deficiency of original formulation, be more convenient for applying.
Description
Technical field
The present invention relates to the microemulsion dosage of a kind of chlopyrifos, it is good to be specifically related to a kind of formulation performance, and the chlorpyrifos micro emulsion of environmental protection more and application thereof, belong to technical field of pesticide.
Background technology
Chlopyrifos (chlorpyrifos) former medicine is white granular crystallization, and room-temperature stable has mercaptan stink, density 1.398(43.5 DEG C), fusing point 41.5 ~ 43.5 DEG C, vapour pressure is 2.5mPa(25 DEG C), in water, solvability is 1.2mg/L, is dissolved in most of organic solvent.Chlopyrifos has following purposes: 1, broad spectrum disinfestation, miticide, is applicable to prevent and treat the insect in the various crop such as citrus, cotton, corn, apple, pears, paddy rice, peanut, soybean, wheat and tea tree and mite class.2, the broad spectrum pesticide of non-internal-absorting, has contact, stomach toxicity and fumigation action, for crops such as corn, cotton, soybean, peanut, beet, fruit tree, vegetables, and house pest, Grainhouse injurious insect and the ectozoa of domestic animals such as control mosquitos and flies, cockroach, termite.3, efficient, wide spectrum, low-residual organophosphorus insecticide, have tag, stomach toxicity and fumigation action, without systemic action, tea geometrid, smaller green leaf hopper, pink tea rust mite, cotten aphid, two-spotted spider mite, rice fulgorid, rice leaf roller, mosquito, fly, wheat armyworm and ox, sheep vermin and soil insect can be prevented and treated.
At present, resources and environment becomes the focal issue of global concern, traditional agricultural chemicals leading products cream preparation is because consuming petroleum-type organic solvent non-renewable in a large number and bringing many negative effects to environment and the mankind itself and face stern challenge increasingly in using, and microemulsion is obtained attention as the water base formulation of one.Chlopyrifos is missible oil as the main formulation of insecticide, and missible oil employs a large amount of organic solvents, and along with the whole world is to the attention of environment, and people are to the raising of environmental consciousness, improve the formulation of chlopyrifos, promotes chlorpyrifos micro emulsion imperative.
Summary of the invention
The present invention is directed to the problem of chlorpyrifos ec formulation feature of environmental protection difference, provide a kind of chlorpyrifos micro emulsion, this microemulsion decreases the usage amount of aromatic hydrocarbons organic solvent, uses the organic solvent of comparatively environmental protection, reduce the pollution of product to environment, be beneficial to environment sustainable development.
The present invention is achieved by the following measures:
A kind of chlorpyrifos micro emulsion, is characterized in that the composition comprising following percentage by weight: chlopyrifos 10-50%, emulsifier 15-25%, cosolvent 5-15%, water surplus.
Further, the composition of following percentage by weight is preferably included: chlopyrifos 10-50%, emulsifier 20%, cosolvent 10%, water surplus.
Further, the composition of following percentage by weight is comprised: chlopyrifos 20-40%, emulsifier 20%, cosolvent 10%, water surplus.
Preferred, comprise the composition of following percentage by weight: chlopyrifos 20-30%, emulsifier 20%, cosolvent 10%, water surplus.
More preferred, comprise the composition of following percentage by weight: chlopyrifos 20%, emulsifier 20%, cosolvent 10%, water surplus; Or chlopyrifos 30%, emulsifier 20%, cosolvent 10%, water surplus.
Emulsifier of the present invention is two or more in calcium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, phenethyl phenol polyethenoxy ether, castor oil polyoxyethylene ether, alkylphenol polyoxyethylene formaldehyde condensation products, styrene polyoxyethylene ether sulfate and styrene polyoxyethylene ether phosphate, is preferably mixed according to mass ratio 3:1 by castor oil polyoxyethylene ether and calcium dodecyl benzene sulfonate.
Cosolvent of the present invention is at least one in isopropyl alcohol, ethylene glycol, n-butanol, isobutanol, propane diols, glycerine, cyclohexanone, 1-METHYLPYRROLIDONE, acetone, S-100 solvent, S-150 solvent and S-200 solvent, is preferably mixed according to mass ratio 1:1 by 1-METHYLPYRROLIDONE and S-200.
Water of the present invention is running water, soft water, deionized water, and the best is deionized water.
Chlorpyrifos micro emulsion of the present invention may be used for control paddy rice, cotton pest, and described insect pest is rice fulgorid, cotton bollworm etc.
The preparation method of chlorpyrifos micro emulsion of the present invention is as follows: be dissolved in by chlopyrifos in cosolvent, then adds emulsifier and water, and mixing homogenize can obtain qualified chlorpyrifos micro emulsion.
The present invention is matrix with water, decreases the use of aromatic hydrocarbons organic solvent, and adopts environment-friendly type organic solvent as far as possible, reduce preparation to the toxicity of people and animals and stimulation, alleviate the harm of preparation to crop, reduce the pollution to environment, improve the safety in utilization of preparation.By the selection to auxiliary agent, microemulsion formulation of the present invention has that environment compatibility is good, production cost is low, safety is high, stability is strong, good drug efficacy, the feature high to insect preventive effect, overcomes and makes up the deficiency of original formulation, be more convenient for applying.
Embodiment
Be further detailed the present invention below by specific embodiment, following explanation is only to explain the present invention, does not limit its content.
Embodiment
Be further detailed the present invention below by specific embodiment, following explanation is only to explain the present invention, does not limit its content.
Embodiment 130% chlorpyrifos micro emulsion
The former medicine 315.8Kg of 95% chlopyrifos is dissolved in 50KgN-methyl pyrrolidone and 50KgS-200, stir, 50Kg calcium dodecyl benzene sulfonate and 150Kg castor oil polyoxyethylene ether is added after dissolving, abundant stirring, add deionized water 384.2Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg30% chlorpyrifos micro emulsion product.
Embodiment 220% chlorpyrifos micro emulsion
The former medicine 210.5Kg of 95% chlopyrifos is dissolved in 50KgN-methyl pyrrolidone and 50KgS-200, stir, 50Kg calcium dodecyl benzene sulfonate and 150kg castor oil polyoxyethylene ether is added after dissolving, abundant stirring, add deionized water 489.5Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg20% chlorpyrifos micro emulsion product.
Embodiment 325% chlorpyrifos micro emulsion
The former medicine 263.2Kg of 95% chlopyrifos is dissolved in 50KgN-methyl pyrrolidone and 50KgS-200, stir, 50Kg calcium dodecyl benzene sulfonate and 150kg castor oil polyoxyethylene ether is added after dissolving, abundant stirring, add deionized water 436.8Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg25% chlorpyrifos micro emulsion product.
Embodiment 450% chlorpyrifos micro emulsion
The former medicine 526.3Kg of 95% chlopyrifos is dissolved in 150KgS-150 to stir, 150Kg fatty alcohol-polyoxyethylene ether and 100Kg phenethyl phenol polyethenoxy ether is added after dissolving, abundant stirring, add running water 73.7Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg50% chlorpyrifos micro emulsion product.
Embodiment 510% chlorpyrifos micro emulsion
The former medicine 105.3Kg of 95% chlopyrifos is dissolved in 25KgS-150 and 25KgS-200, stir, 90Kg alkylphenol polyoxyethylene formaldehyde condensation products and 30Kg castor oil polyoxyethylene ether and 100Kg styrene polyethenoxy ether sodium sulfate is added after dissolving, abundant stirring, add deionized water 574.7Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg10% chlorpyrifos micro emulsion product.
Embodiment 640% chlorpyrifos micro emulsion
The former medicine 421Kg of 95% chlopyrifos is dissolved in 25Kg isopropyl alcohol and 25Kg ethylene glycol and 30Kg n-butanol, stir, 40Kg styrene APEO potassium sulfate and 120Kg styrene APEO sodium phosphate is added after dissolving, abundant stirring, add deionized water 339Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg40% chlorpyrifos micro emulsion product.
Embodiment 730% chlorpyrifos micro emulsion
The former medicine 315.8Kg of 95% chlopyrifos is dissolved in 50Kg isobutanol and 40Kg propane diols and 30KgS-100#, stir, 50Kg calcium dodecyl benzene sulfonate and 150Kg alkylphenol polyoxyethylene formaldehyde condensation products is added after dissolving, abundant stirring, add soft water 364.2Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg30% chlorpyrifos micro emulsion product.
Embodiment 815% chlorpyrifos micro emulsion
The former medicine 157.9Kg of 95% chlopyrifos is dissolved in 50Kg glycerine and 20Kg cyclohexanone and 30KgS-150#, stir, 20Kg calcium dodecyl benzene sulfonate and 170Kg castor oil polyoxyethylene ether is added after dissolving, abundant stirring, add deionized water 552.1Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg15% chlorpyrifos micro emulsion product.
Embodiment 935% chlorpyrifos micro emulsion
The former medicine 368.4Kg of 95% chlopyrifos is dissolved in 50Kg acetone and 70KgS-200, stir, 40Kg alkylphenol polyoxyethylene formaldehyde condensation products and 120Kg castor oil polyoxyethylene ether is added after dissolving, abundant stirring, add running water 351.6Kg again, abundant mixing homogenize, to transparency liquid, namely obtains 1000Kg35% chlorpyrifos micro emulsion product.
One, the above embodiment of the present invention gained microemulsion the performance test results is as shown in table 1 below:
As can be seen from Table 1, the leading indicator of chlorpyrifos micro emulsion of the present invention is as following table 2:
As can be seen from the above data, microemulsion formulation of the present invention has good stability under normal temperature, heat storage and low temperature, in addition, by finding out the detection of cold and hot normal temperature index, each embodiment preparation heat storage resolution ratio, all lower than 4%, meets the requirements, and by contrast, embodiment 1-embodiment 3 heat storage resolution ratio be no more than 2%, and other all between 2%-4%, visible preferred promoter plays key effect in product quality.
Two, chlorpyrifos micro emulsion of the present invention is to the indoor virulence testing experiment of cotton bollworm
1, reagent agent:
Contrast medicament A:48% chlorpyrifos ec (commercially available)
Test medicine B:30% chlorpyrifos micro emulsion (embodiment of the present invention 1)
Test medicine C:20% chlorpyrifos micro emulsion (embodiment of the present invention 2)
2, worm is used in experiment: cotton bollworm
3, test method: adopt dip method, measure the Contact toxicity of medicament, drug concentration adopts 6 concentration gradient process, often process and repeat for 6 times, often investigation examination worm 48, leaching worm 5S, examination worm is put into respectively 24 hole test boxs, put into constant incubator and cultivate 48h investigation insect population lethality.
4, test result is as shown in table 3, and as can be seen from the table, invention formulation antagonism cotton bollworm has good virulence.
Three, chlorpyrifos micro emulsion of the present invention is to the control drug efficacy study of cotton cotton bollworm
1, the chlorpyrifos micro emulsion product prepared above-described embodiment is prevented and treated cotton bollworm situation in cotton and is carried out the test of pesticide effectiveness, this experimental establishment is carried out in this locality, the insect of cotton is conventional cotton bollworm, worm amount occurs medium, and Qu10Ge tests community, each plot area 15 square metres, different except spraying medicament, each community rich water quality management is consistent, and growing way is consistent, and each experimental plot is the arrangement of random district group in field.
2, with medicament is made
The product of test medicine: embodiment of the present invention 1-9;
Contrast medicament: 48% chlorpyrifos ec (commercially available)
3, prescription formula is sprayed: get each medicament according to the data in table 4, then all dilute with 1kg water.With the spraying of knapsack hand sprayer routine during spray medicine, whole experimental period medication twice.
4, investigation method: take 5 point samplings in each community before spray medicine, all cotton boll borer populations on fixed point investigation 5-10 strain cotton, as insect radix, 1 day and 7 days remaining borer populations alive of investigation after dispenser.Worm age is in 3-4 age.
5, effect experiment result is as shown in table 4 below:
As can be seen from the above data, in test scope of medication, each medicament has no adverse effects to target crop.Use the embodiment preventive effect of preferred promoter will obviously be better than other embodiments, and reach more than 96% to cotton bollworm control, and contrast medicament quite, wherein example 1 and example 2 put that to control effect more excellent.
Four, chlorpyrifos micro emulsion of the present invention is to the control drug efficacy study of rice hoppers
1, the test of pesticide effectiveness is carried out to chlorpyrifos micro emulsion product control paddy rice semilate rice plant hopper situation prepared by above-described embodiment, this experimental establishment tests paddy field in Guangxi, trial target is conventional rice fulgorid, worm amount occurs medium, and Qu10Ge tests community, each plot area 15 square metres, different except spraying medicament, each community rich water quality management is consistent, and growing way is consistent, and in field, random district group arranges whole experimental period medication twice in each experimental plot.
2, with medicament is made
The product of test medicine: embodiment of the present invention 1-9;
Contrast medicament: 48% chlorpyrifos ec (commercially available)
3, prescription formula is sprayed: get each medicament according to the data in table 5, then all dilute with 1kg water.With the spraying of knapsack hand sprayer routine during spray medicine, whole experimental period medication twice.
4, investigation method: take 5 point samplings in each community before spray medicine, all rice fulgorid numbers on fixed point investigation 5-10 strain paddy rice, as insect radix, 1 day and 7 days remaining borer populations alive of investigation after dispenser.
5, effect experiment result is as shown in table 5 below:
As can be seen from the above data, in test scope of medication, target crop is had no adverse effects.Use the embodiment preventive effect of preferred promoter will obviously be better than other embodiments, and more than 90% is reached to rice fulgorid control, with to contrast medicament suitable.
Claims (8)
1. a chlorpyrifos micro emulsion, is characterized in that the composition comprising following percentage by weight: chlopyrifos 10-50%, emulsifier 15-25%, cosolvent 5-15%, water surplus; Described emulsifier is mixed according to mass ratio 3:1 by castor oil polyoxyethylene ether and calcium dodecyl benzene sulfonate; Described cosolvent is mixed according to mass ratio 1:1 by 1-METHYLPYRROLIDONE and S-200; Described water is deionized water.
2. chlorpyrifos micro emulsion according to claim 1, is characterized in that the composition comprising following percentage by weight: chlopyrifos 10-50%, emulsifier 20%, cosolvent 10%, water surplus.
3. chlorpyrifos micro emulsion according to claim 2, is characterized in that the composition comprising following percentage by weight: chlopyrifos 20-40%, emulsifier 20%, cosolvent 10%, water surplus.
4. chlorpyrifos micro emulsion according to claim 3, is characterized in that the composition comprising following percentage by weight: chlopyrifos 20-30%, emulsifier 20%, cosolvent 10%, water surplus.
5. chlorpyrifos micro emulsion according to claim 4, is characterized in that the composition comprising following percentage by weight: chlopyrifos 20%, emulsifier 20%, cosolvent 10%, water surplus.
6. chlorpyrifos micro emulsion according to claim 4, is characterized in that the composition comprising following percentage by weight: chlopyrifos 30%, emulsifier 20%, cosolvent 10%, water surplus.
7. the application of the chlorpyrifos micro emulsion according to any one of claim 1-6 in control paddy rice, cotton pest.
8. application according to claim 7, is characterized in that: described insect pest is rice fulgorid and cotton bollworm.
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| CN105794871A (en) * | 2016-04-29 | 2016-07-27 | 山东胜伟园林科技有限公司 | Insecticide containing onion extract and preparation method of insecticide |
| CN106818921A (en) * | 2016-12-23 | 2017-06-13 | 芜湖福民生物药业股份有限公司 | Validamycin composition and preparation method thereof for preventing and treating rice sheath blight disease |
| CN106665680A (en) * | 2016-12-23 | 2017-05-17 | 芜湖福民生物药业股份有限公司 | Validamycin composition for preventing and controlling rice sheath blight disease and preparation method of validamycin composition |
| CN106689227A (en) * | 2016-12-23 | 2017-05-24 | 芜湖福民生物药业股份有限公司 | Candicidin composition used for preventing rice sheath blight disease and preparation method of candicidin composition |
| CN106614805A (en) * | 2016-12-23 | 2017-05-10 | 芜湖福民生物药业股份有限公司 | Validamycin compound for preventing and treating rice sheath blight disease and preparation method thereof |
| CN110999901A (en) * | 2019-11-12 | 2020-04-14 | 南京华洲药业有限公司 | Composite insecticidal and acaricidal nano water agent containing fenpropathrin and chlorpyrifos, and preparation method and application thereof |
| CN116868994B (en) * | 2023-09-07 | 2023-12-08 | 山东康惠植物保护有限公司 | Chlorpyrifos emulsifiable concentrate and application thereof |
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Effective date of registration: 20171116 Address after: No. 8, Hai Pu North Road, New River ecological and chemical technology industry base in Pingdu City, Qingdao, Shandong Patentee after: Qingdao run agricultural chemical Co., Ltd. Address before: Haiyuan Binhai Economic Development Zone, Shandong province Weifang city 262737 Street No. 600 Patentee before: Shandong Weifang Rainbow Chemical Co., Ltd. |