CN104886050A - High-permeability high-adhesion pesticide synergist and preparation method thereof - Google Patents
High-permeability high-adhesion pesticide synergist and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a high-permeability high-adhesion pesticide synergist and a preparation method thereof. The synergist comprises the following components in percentage by mass: 10-15 percent of an emulsifier, 1-5 percent of an anti-drifting additive, 2.5-5 percent of a permeating agent, 2.5-5 percent of a spreader, 0.5-2.5 percent of a plant growth regulator and water in balancing amount. The preparation method comprises the following steps: taking the components in proportion, adding the anti-drifting additive and the plant growth regulator into water at a constant temperature 30 DEG C under magnetic stirring, adding the emulsifier after the anti-drifting additive and the plant growth regulator are fully dissolved, adding the penetrating agent, finally adding the spreader, and stirring fully until the solution is clarified and transparent. According to the pesticide synergist and the preparation method provided by the invention, the permeability and conductivity of pesticide liquid can be improved, the adhesion, wetting and spreadability of pesticide drops on the surfaces of targets are enhanced, meanwhile the evaporation rate of spray liquid is improved, the drifting and loss of pesticide liquid are reduced, and plant growth is promoted; the purpose of pesticide dosage reduction is achieved, the effective utilization ratio of the pesticide is improved, environment pollution is reduced, and the pesticide synergist and the preparation method can be widely applied to the agricultural field.
Description
Technical field
The present invention relates to insecticides adjuvant field, is a kind of Thief zone height attachment agricultural chemicals synergist and preparation method thereof specifically.
Background technology
Present stage, China's agricultural chemicals pesticide application technology is based on spray-on process, spray-on process is a kind of efficient, safe, economic insecticide-applying way, but in the process of spray-on process dispenser, the a large amount of drift of droplet that pesticide solution is formed, in environment, causes pesticide efficacy very low, and pesticide liquid drops in target surface and easily causes spring and tumble, these situations cause the loss of most of pesticide active ingredient, cause environmental pollution and economic loss.
Agricultural chemicals synergist (referred to as builder) is the general name of the auxiliary agent used in spray-on process dispenser or similar application technology, by suitably adding agricultural chemicals synergist, adhesion, wetting and spreading performance that pesticide liquid drops in target surface can be improved, not only can improve pesticide efficacy, and the object of pesticide reduction can be reached.
The use of agricultural chemicals synergist can reach following object:
1, adhesion and wettability that pesticide liquid drops in target surface (plant leaf surface or insect surface) is increased;
2, the evaporation rate of spray liquid is improved;
3, the against weather of spraying precipitum is improved;
4, permeability and the conductive performance of pesticide solution is increased;
5, the pH of spray liquid and spraying precipitum is adjusted;
6, the uniformity of spraying precipitum is improved;
7, the compatibility of mixture is solved;
8, the safety of crop is contributed to;
9, increase the deposition of pesticide solution, reduce drift and the loss of pesticide solution.
Realize in above object one or several, can both pesticide efficacy be improved, reduce environmental pollution and economic loss.
Improve the permeance property of builder, builder can be promoted to the compatibilization of wax coat surface chemical composition by adding surfactant, destroying the wax coat of target surface, increasing the osmotic efficiency of pesticide active ingredient; Improve the adhesion property of builder, namely improve solid-liquid interface interaction force, can by the electrostatic interaction between interpolation surfactant enhancing surfactant molecule and the surface of solids or hydrophobic interaction.Therefore, select suitable kinds of surfactants, the dissolution to wax coat and solid-liquid interface interaction force can be strengthened, from the efficiency promoting in fact builder.
Builder kind is a lot, mainly comprises following several:
Coagent, comprises surfactant as wetting agent, bleeding agent, non-harmful various wet goods;
Spraying improvement auxiliary agent, comprises adhesive, film forming agent, spreader-sticker and blowing agent;
Practicality improvement auxiliary agent, comprises emulsifier, dispersant, stabilizing agent etc.
It is wherein a kind of that the application of builder is not limited to use, can be optimized combination, play its different characteristics, prepare more practical builder to variety classes builder.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of Thief zone height attachment agricultural chemicals synergist and preparation method thereof, use the builder that the method prepares, the permeability and conductive performance that improve pesticide solution can be assisted, strengthen adhesion, wetting and spreading performance that pesticide liquid drops in target surface, reach the object improving pesticide efficacy.
For reaching above object, the technical scheme that the present invention takes is:
A kind of Thief zone height attachment agricultural chemicals synergist, it is characterized in that: be calculated in mass percent, comprising: 10-15% emulsifier, the anti-drift auxiliary agent of 1-5%, 2.5-5% bleeding agent, 2.5-5% spreader-sticker and 0.5-2.5% plant growth regulator, surplus is supplied with water.
On the basis of technique scheme, described emulsifier is Triton X-100.
On the basis of technique scheme, described anti-drift auxiliary agent is polyvinylpyrrolidone.
On the basis of technique scheme, described bleeding agent is high nitriding ketone or JFC.
On the basis of technique scheme, described spreader-sticker is organic silicon surfactant.
On the basis of technique scheme, described organic silicon surfactant is silwet L-77 or Silwet 618 or Silwet 408.
On the basis of technique scheme, described plant growth regulator is butyric acid potassium.
The preparation method of above-mentioned Thief zone height attachment agricultural chemicals synergist, is characterized in that: comprise the steps:
Get each component by proportioning, under 30 DEG C of constant temperature, under magnetic stirring, in water, add anti-drift auxiliary agent and plant growth regulator, after fully dissolving, then add emulsifier, then add bleeding agent, finally add spreader-sticker, be stirred well to solution clear.
On the basis of technique scheme, the stir speed (S.S.) of described magnetic agitation is 50-300r/min.
On the basis of technique scheme, be calculated in mass percent, described Triton X-100 mass percent is preferably 15%, described polyvinylpyrrolidone mass percent is preferably 2.5%, described high nitriding ketone mass percent is preferably 2.5%, described JFC mass percent is preferably 4%, described silwet L-77 mass percent is preferably 2.5%, described Silwet618 mass percent is preferably 3%, described Silwet 408 mass percent is preferably 3%, and described butyric acid potassium mass percent is preferably 1%.
Thief zone height attachment agricultural chemicals synergist of the present invention and preparation method thereof, not only can increase permeability and the conductive performance of pesticide solution, improve adhesion, wetting and spreading performance that pesticide liquid drops in target surface, improve the evaporation rate of spray liquid simultaneously, reduce drift and the loss of pesticide solution, Promoting plant growth; Reach the object of pesticide reduction, improve pesticide efficacy, reduce environmental pollution, can agriculture field be widely used in.
Embodiment
Thief zone height attachment agricultural chemicals synergist of the present invention, be calculated in mass percent, comprise: 10-15% emulsifier, the anti-drift auxiliary agent of 1-5%, 2.5-5% bleeding agent, 2.5-5% spreader-sticker and 0.5-2.5% plant growth regulator, surplus is supplied with water.
On the basis of technique scheme, described emulsifier is Triton X-100.
Triton X-100 (Triton X-100) is a kind of non-ionic surface active agent, and Triton X-100 (emulsifier) mass percent is preferably 15%.Adding emulsifier can make the performance of builder of the present invention more stable.
On the basis of technique scheme, described anti-drift auxiliary agent is polyvinylpyrrolidone, is preferably PVP K30.
Polyvinylpyrrolidone (Mn=60000, K30) is water-soluble nonionic macromolecular compound, nontoxic non-corrosiveness.Described polyvinylpyrrolidone (anti-drift auxiliary agent) mass percent is preferably 2.5%.
Polyvinylpyrrolidone (PVP) has and falls resistive, effectively can reduce the frictional resistance of fluid, make pesticide liquid drop in target surface and more easily adhere to and sprawl; There is thickening property simultaneously, give the physical mechanical stability that auxiliary agent is good; The more important thing is, the polyvinylpyrrolidone of HMW can prevent drift and the loss of pesticide solution, improves the deposition of pesticide solution, thus reduces agricultural chemicals to the pollution of environment, reduces use cost.Polyvinylpyrrolidone add drift and the loss that the evaporation rate not only can improving spray liquid reduces pesticide solution simultaneously.
On the basis of technique scheme, described bleeding agent is high nitriding ketone or JFC.
High nitriding ketonize formal name used at school is called Azone, and JFC chemical name is fatty alcohol-polyoxyethylene ether.Bleeding agent add the surface tension that significantly can reduce agricultural chemicals drop, increase the permeability of pesticide solution and conductive performance.Promote that insecticide is to the infiltration of polypide, promote that weed killer herbicide is to the infiltration of weeds wax coat, improves wettability, promote that target is to the absorption of pesticide active ingredient, improve pesticide efficacy and reduce pesticide dosage, thus reducing agricultural chemicals to the pollution of environment, reducing use cost.
Described high nitriding ketone (bleeding agent) mass percent is preferably 2.5%, JFC (bleeding agent) mass percent and is preferably 4%.
On the basis of technique scheme, described spreader-sticker is organic silicon surfactant, it to be first hydrolyzed generation polysiloxanes by chlorosilane, again with the colorless oil clear viscous liquid of polyethers condensation, described organic silicon surfactant is preferably silwet L-77 or Silwet618 or Silwet 408.
Organic silicon surfactant can increase pesticide solution effectively crop with there is the coverage rate on pest body and sprawl face, and reach better spray effect, pesticide efficacy improves greatly, reduces residue of pesticide simultaneously.
Organic silicon surfactant can impel agricultural chemicals to be attached on plant leaf blade, in being organized, improves wettability by pore rapid osmotic to blade face.
Because organic silicon surfactant time of penetration is short, pesticide solution can be made to stick on the wax coat of pest body surface, pest inside is infiltrated rapidly by the air duct of pest and pore, before harmful organisms internal secretion resistance protein enzyme decomposing pesticide liquid, the concentration of pesticide solution has reached the lethal dose of pest, not easily produces resistance.
Increase the adding of organic silicon surfactant permeability and conductive performance that wetability that pesticide liquid drops in blade face or insect increases pesticide solution simultaneously.Described silwet L-77 (spreader-sticker) mass percent is preferably 2.5%, and described Silwet 618 (spreader-sticker) mass percent is preferably 3%, and described Silwet 408 (spreader-sticker) mass percent is preferably 3%.
On the basis of technique scheme, described plant growth regulator is butyric acid potassium.
Butyric acid potassium is a kind of growth-promoting root class plant growth regulator, and can act on plant respectively grows vigorous position simultaneously.Via foliage spray, pass in plant corpus by positions such as blades, and concentrate on growing point position, promote cell division, there is long-lasting and metastatic feature, good stability, use safety.Described butyric acid potassium (plant growth regulator) mass percent is preferably 1%.
Thief zone height attachment agricultural chemicals synergist as above, its preparation method comprises the steps:
Get each component by proportioning, under 30 DEG C of constant temperature, under magnetic stirring, in water, add anti-drift auxiliary agent and plant growth regulator, after fully dissolving, then add emulsifier, then add bleeding agent, finally add spreader-sticker, be stirred well to solution clear.
The stir speed (S.S.) of described magnetic agitation is 50-300r/min, is preferably 100-140r/min, is more preferably 120r/min.
On the basis of technique scheme, be calculated in mass percent, described Triton X-100 mass percent is preferably 15%, described polyvinylpyrrolidone mass percent is preferably 2.5%, described high nitriding ketone mass percent is preferably 2.5%, described JFC mass percent is preferably 4%, described silwet L-77 mass percent is preferably 2.5%, described Silwet618 mass percent is preferably 3%, described Silwet 408 mass percent is preferably 3%, and described butyric acid potassium mass percent is preferably 1%.
In the pesticidal preparations field control effectiveness test adding Thief zone of the present invention height attachment agricultural chemicals synergist, under equal conditions, after adding builder, pesticide dosage is when minimizing 33.33%, its killing rate and ovicidal rate all reach pesticide efficacy during non-decrement, and after adding builder, agricultural chemicals lasting effect strengthens simultaneously.Therefore, can know by inference according to above-mentioned result of the test, when identical drug effect, add Thief zone of the present invention height attachment agricultural chemicals synergist and can reduce Pesticide use amount, ensure that the safety of operator and environment, reduce cost and residue of pesticide.
From above technical scheme, Thief zone height attachment agricultural chemicals synergist of the present invention not only can increase permeability and the conductive performance of pesticide solution, improve adhesive ability and wetability that pesticide liquid drops in target surface, improve the evaporation rate of spray liquid simultaneously, reduce drift and the loss of pesticide solution, Promoting plant growth; Reach the object of pesticide reduction, improve pesticide efficacy, reduce environmental pollution, can agriculture field be widely used in.
It is below embodiment.
The embodiment of the invention discloses a kind of Thief zone height attachment agricultural chemicals synergist and preparation method thereof.Those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention and method are described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope product as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
In order to understand the present invention further, below in conjunction with embodiment, a kind of Thief zone height attachment agricultural chemicals synergist provided by the invention and preparation method thereof is described in detail.
Embodiment 1: prepare Thief zone of the present invention height attachment builder one
All be calculated in mass percent, under 30 DEG C of constant temperature, under 120r/min mixing speed, 1% PVP K30 and 0.5% butyric acid potassium is added in water, after fully dissolving, then add 10%Triton X-100, then add 2.5% high nitriding ketone or JFC, finally add 2.5% organic silicon surfactant silwet L-77 or Silwet 408, be stirred well to solution clear.
Embodiment 2: prepare Thief zone of the present invention height attachment builder two
All be calculated in mass percent, under 30 DEG C of constant temperature, under 50r/min mixing speed, 5% PVP K30 and 2.5% butyric acid potassium is added in water, after fully dissolving, then add 15%Triton X-100, then add 5% high nitriding ketone or JFC, finally add 5% organic silicon surfactant silwet L-77 or Silwet 408, be stirred well to solution clear.
Embodiment 3: prepare Thief zone of the present invention height attachment builder three
All be calculated in mass percent, under 30 DEG C of constant temperature, under 300r/min mixing speed, 2.5% PVP K30 and 1% butyric acid potassium is added in water, after fully dissolving, then add 12.5%Triton X-100, then add 4% high nitriding ketone or JFC, finally add 3% organic silicon surfactant silwet L-77 or Silwet 618, be stirred well to solution clear.
Embodiment 4: prepare Thief zone of the present invention height attachment builder four
All be calculated in mass percent, under 30 DEG C of constant temperature, under 140r/min mixing speed, 2.5% PVP K30 and 1.5% butyric acid potassium is added in water, after fully dissolving, then add 15%Triton X-100, then add 2.5% high nitriding ketone or JFC, finally add 3% organic silicon surfactant silwet L-77 or Silwet 618, be stirred well to solution clear.
Embodiment 5: prepare Thief zone of the present invention height attachment builder five
All be calculated in mass percent, under 30 DEG C of constant temperature, under 120r/min mixing speed, 2% PVP K30 and 1% butyric acid potassium is added in water, after fully dissolving, then add 11%Triton X-100, then add 2.5% high nitriding ketone, finally add 3% organic silicon surfactant Silwet 618, be stirred well to solution clear.
Embodiment 6: prepare Thief zone of the present invention height attachment builder six
All be calculated in mass percent, under 30 DEG C of constant temperature, under 120r/min mixing speed, 3% PVP K30 and 1% butyric acid potassium is added in water, after fully dissolving, then add 13%Triton X-100, then add 4%JFC, finally add 2.5% organic silicon surfactant silwet L-77, be stirred well to solution clear.
Detect 1: Thief zone height attachment agricultural chemicals synergist Surface and interface nature examination
Thief zone height attachment agricultural chemicals synergist Surface and interface nature examination comprises: contact angle on paraffin plate surface of surface tension of liquid, drop and the deposition of drop on paraffin plate surface.Selected builder is builder five and builder six, dilutes 200 times respectively and detects, and contrast with water.
Builder Surface and interface character after table 1 dilutes 200 times
As can be seen from Table 1, after adding builder, the surface tension of water significantly reduces, and illustrates that the wettability of liquid own strengthens.Meanwhile, for contact angle, after adding builder, drop initial contact angle reduces 20-30 ° than water droplet, and after balance, contact angle reduces more remarkable, illustrates that the spreading ability of liquid own strengthens.Compare in paraffin plate surface deposition amount with water, after adding builder, droplet deposition amount increases, and illustrates that the adhesion property of liquid own strengthens.Show after builder Surface and interface nature examination after dilution 200 times, after adding builder, drop not only can improve it in target surface wetting and spreading performance, and strengthens it in target surface adhesion property.
Detect 2: pesticide solution Surface and interface nature examination after interpolation Thief zone height attachment agricultural chemicals synergist
Thief zone height attachment agricultural chemicals synergist is added in choice experiment room self-control pesticidal preparations (14.5% high chlorine spiral shell worm ethyl ester SC); Its pesticidal preparations dilutes 3000 times, and contrast experiment's Pesticides preparation diluent 4000 times adds builder and dilutes 200 times.
Surface and interface nature examination comprises: surface tension of liquid, drop at target surface contact angle, drop at target surface deposition (selected target surface is respectively paraffin plate, Apple Leaves, apple skin) and the adhesion of drop on Apple Leaves surface.
Numbering 1 is dilution 3000 times of pesticidal preparations solution, and numbering 2 is dilution 4000 times of pesticidal preparations interpolation dilutions 200 times of builders five, and numbering 3 is dilution 4000 times of pesticidal preparations interpolation dilutions 200 times of builders six.
Table 2 adds pesticide solution Surface and interface nature examination after builder
As can be seen from Table 2, after adding builder, the surface tension of pesticidal preparations significantly reduces, and its corresponding target surface equilibrium contact angle also reduces, and what builder was described adds the wetting and spreading ability that improve pesticidal preparations.Meanwhile, after adding builder, pesticidal preparations deposition on target surface significantly improves, and adhesion (Gu-liquid interfacial interaction power) strengthens, and what builder was described adds the adhesion property that improve pesticidal preparations.
Field control effectiveness test
Test agricultural chemicals: 14.5% high chlorine spiral shell worm ethyl ester SC;
Test builder: embodiment five and embodiment six builder and the builder prepared according to embodiment five and embodiment six method;
Controlling object: peach fruit borer
Environmental condition: experimental field physical features is mild, preserve moisture and fertility is better, and rich water quality management is normal, and growing way is more consistent, and experimental cultivar is golden short life, and age of tree life in 9 years, seeding row spacing is 2 × 4m.
Set up blank group (water), experimental group 1 (14.5% high chlorine spiral shell worm ethyl ester SC dilutes 3000 times), experimental group 2 (14.5% high chlorine spiral shell worm ethyl ester SC dilutes 4000 times and adds dilution 200 times of builders five), experimental group 3 (14.5% high chlorine spiral shell worm ethyl ester SC dilutes 4000 times and adds dilution 200 times of builders six).Adopt stretcher type power sprayer spraying (ZL-22-160 type), accomplish during dispenser evenly to spray leave dual sides.This experiment repetition 3 times, once, the ovicidal effect of 5 days, 10 days after investigation dispenser, after dispenser, the control efficiency of 5 days, 10 days, 15 days and 30 days, does not have rainfall during dispenser, did not use other medicaments simultaneously in each test dispenser.
Ovicidal effect (%)=[before (before dispenser after each phase worm's ovum number-dispenser each phase worm's ovum number)/dispenser each phase worm's ovum number] × 100%; Control efficiency (%)=[(blank newly-increased wormed fruit rate-newly-increased wormed fruit rate)/blank newly-increased wormed fruit rate] × 100, wherein each phase wormed fruit rate before each phase wormed fruit rate-dispenser after newly-increased wormed fruit rate (%)=dispenser.The results are shown in Table 3 and table 4, wherein table 3 be Liaoning Province's Xingcheng City fruit tree research test result, table 4 is the test results at Linfen, Shanxi Province plant protection unit.
After table 3 adds builder, pesticidal preparations is to the control efficiency (fruit tree research institute) of peach fruit borer
After table 4 adds builder, pesticidal preparations is to the ovicidal effect of peach fruit borer and control efficiency (Linfen plant protection unit)
As can be seen from table 3 and table 4, after adding builder, pesticidal preparations still maintains higher control efficiency when decrement 33.33%, and the lasting period reaches 30 days; Meanwhile, after adding builder, ovicidal effect is significantly improved.Illustrate that builder not only shows excellent characteristic when Surface and interface nature examination, the ability soaking, sprawl, adhere to and permeate simultaneously also done well in field control effectiveness test, pesticide efficacy is improved with this, reduce pesticide dosage and spray timings, reduce environmental pollution and financial burden.
Comprehensive above result of the test, the Thief zone height attachment agricultural chemicals synergist prepared according to embodiment five and embodiment six adds to after in pesticidal preparations, the surface tension reducing medicament makes its wetting and spreading ability strengthen, reduce drop at target surface contact angle, enhance the interaction of drop and target surface simultaneously, adhesion strengthens, and improves target surface deposition.More than act on the high wettability, high osmosis and the high tack that embody builder, therefore in the effect experiment of land for growing field crops, premium properties is shown, after pesticide reduction 33.33%, its ovicidal effect and control efficiency are obviously promoted compared with not adding the pesticide solution of builder, reach the object of pesticide reduction, improve pesticide efficacy.Meanwhile, in builder, also added plant growth regulator---butyric acid potassium, Promoting plant growth, promotes fruit-setting rate, reaches volume increase object.
The explanation of above embodiment is just for understanding method of the present invention and core concept.It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, can also carry out some improvement and modification to the present invention, these improve and modify and also drop in the protection domain of the claims in the present invention.
The content be not described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. a Thief zone height attachment agricultural chemicals synergist, it is characterized in that: be calculated in mass percent, comprising: 10-15% emulsifier, the anti-drift auxiliary agent of 1-5%, 2.5-5% bleeding agent, 2.5-5% spreader-sticker and 0.5-2.5% plant growth regulator, surplus is supplied with water.
2. Thief zone height attachment agricultural chemicals synergist as claimed in claim 1, is characterized in that: described emulsifier is Triton X-100.
3. Thief zone height attachment agricultural chemicals synergist as claimed in claim 1, is characterized in that: described anti-drift auxiliary agent is polyvinylpyrrolidone.
4. Thief zone height attachment agricultural chemicals synergist as claimed in claim 1, is characterized in that: described bleeding agent is high nitriding ketone or JFC.
5. Thief zone height attachment agricultural chemicals synergist as claimed in claim 1, is characterized in that: described spreader-sticker is organic silicon surfactant.
6. Thief zone height attachment agricultural chemicals synergist as claimed in claim 5, is characterized in that: described organic silicon surfactant is silwet L-77 or Silwet 618 or Silwet408.
7. Thief zone height attachment agricultural chemicals synergist as claimed in claim 1, is characterized in that: described plant growth regulator is butyric acid potassium.
8. the preparation method of the Thief zone height attachment agricultural chemicals synergist as described in one of as any in claim 1 ~ 7, is characterized in that: comprise the steps:
Get each component by proportioning, under 30 DEG C of constant temperature, under magnetic stirring, in water, add anti-drift auxiliary agent and plant growth regulator, after fully dissolving, then add emulsifier, then add bleeding agent, finally add spreader-sticker, be stirred well to solution clear.
9. the preparation method of Thief zone height attachment agricultural chemicals synergist as claimed in claim 8, is characterized in that: the stir speed (S.S.) of described magnetic agitation is 50-300r/min.
10. the preparation method of Thief zone height attachment agricultural chemicals synergist as claimed in claim 8, it is characterized in that: be calculated in mass percent, described Triton X-100 mass percent is preferably 15%, described polyvinylpyrrolidone mass percent is preferably 2.5%, described high nitriding ketone mass percent is preferably 2.5%, described JFC mass percent is preferably 4%, described silwet L-77 mass percent is preferably 2.5%, described Silwet 618 mass percent is preferably 3%, described Silwet 408 mass percent is preferably 3%, described butyric acid potassium mass percent is preferably 1%.
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