CN109329278A - A kind of surface activator composition and its preparation method and application - Google Patents

A kind of surface activator composition and its preparation method and application Download PDF

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Publication number
CN109329278A
CN109329278A CN201811400670.7A CN201811400670A CN109329278A CN 109329278 A CN109329278 A CN 109329278A CN 201811400670 A CN201811400670 A CN 201811400670A CN 109329278 A CN109329278 A CN 109329278A
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activator composition
surface activator
acid
lignin sulfonate
humic acid
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杜国涛
王克乐
曹雄飞
王基春
陈世国
张俊生
秦敦忠
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JIANGSU SINVOCHEM S&D Co Ltd
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JIANGSU SINVOCHEM S&D Co Ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/30Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N51/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a kind of surface activator compositions, including following component: lignin sulfonate surfactant, humic acid or humate, zwitterionic surfactant and PH regulator;Obtained surface activator composition uses the suspensibility and suspension stability that preparation can be improved in pesticide water dispersible granules, wettable powder, suspending agent.

Description

A kind of surface activator composition and its preparation method and application
Technical field
The present invention relates to technical field of pesticide preparations, more particularly to a kind of surface activator composition and its system Preparation Method and application.
Background technique
Surfactant in pesticidal preparations is that the pesticide system that can be used is made in the pesticide original medicine that will be unable to directly use One of indispensable component of agent institute.It is applied on pesticide as a kind of insecticides adjuvant, and the use effect of pesticide not only can be improved Fruit, can also reduce the dosage of pesticide, reduce and give environment bring to endanger during Pesticide use, and bring for agricultural production huge Benefit.Lignosulfonates are again the very widely used surfactants of field of pesticide preparation, have excellent peptizaiton, Energy complete biodegradable, the feature of environmental protection are strong, it is also considered that are a kind of renewable resource to it, using increasingly in formulations of pesticide processing It is welcome, and have bright prospects.
But surfactant disclosed in the prior art be applied to field of pesticide preparation there are still apparent defects, such as Patent document CN101188932A reports the mixture of a kind of lignosulfonates and (alkyl) naphthalene formaldehyde condensate sulfonates, Certain synergistic effect is shown after mixing, but it in terms of the stably dispersing system for improving pesticidal preparations, especially preparation is dilute It releases its dispersion stabilization after liquid through a long time is placed not promoted, also not help drug effect aspect is promoted;Such as Zhang Xueqin, Cai It is happy, the river Yang Ya amphoteric ion/anionic surfactant compound system synergistic effect research [J] colloid and polymer, 2002,20 (3): disclosed in 1-5., lauryl sodium sulfate and lauroylamidopropyl betaine are used in compounding and are forming micella There is certain synergistic effect with surface tension aspect is reduced, but it is undesirable in pesticide dispersion field application effect;Such as CN104397030A discloses the granule of a kind of Fipronil and humic acid compounded, and can greatly improve medicine with humic acid compounding Effect, but it can only be confined to production granule and be to spread fertilizer over the fields just play synergistic effect in soil as processing soil treatment agent, Synergistic effect cannot be embodied in the preparation using cauline leaf process as insecticide-applying way.
Therefore it provides a kind of surface that can be widely applied for field of pesticide preparation and show notable synergistic effect is living The problem of property agent composition and its preparation method and application is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides a kind of surface activator composition and its preparation method and application, obtained table Face surfactant composition in pesticide water dispersible granules, wettable powder, suspending agent using the suspensibility that preparation can be improved and Suspension stability.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of surface activator composition, which is characterized in that including following component: lignin sulfonate surface-active Agent, humic acid or humate, zwitterionic surfactant and PH regulator.
The beneficial effect of above-mentioned optimal technical scheme is: in a kind of surface activator composition disclosed by the invention, leading to The mutual cooperation of lignin sulfonate surfactant, humic acid or humate and zwitterionic surfactant is crossed, together When recycle pH adjusting agent the pH of mixed system is adjusted, so as to significantly improve the dispersibility of lignosulfonates.
Preferably, the component including following mass percent: 9.5%~81% lignin sulfonate surface-active Agent, 4.75%~72% humic acid or humate, 4~50% zwitterionic surfactant and 0~5%PH adjust Agent.
Preferably, the lignin sulfonate surfactant includes sulfomethylated lignin acid alkali metal salt, lignin sulfonic acid Ammonium salt or lignin sulfonic acid organic ammonium salt.
Preferably, the sulfomethylated lignin acid alkali metal salt includes sodium lignin sulfonate, potassium lignosulfonate, lignin sulfonic acid Calcium or magnesium lignosulfonate.
Preferably, the lignin sulfonate surfactant include sodium lignin sulfonate, it is ammonium lignosulphonate, wooden One of plain sulfoacid calcium, magnesium lignosulfonate or potassium lignosulfonate or a variety of mixtures.
The beneficial effect of above-mentioned optimal technical scheme is: present invention lignin sulfonate surfactant selected to use It is a kind of multicomponent high molecular polymer anionic surfactant, excellent peptizaiton can be played in pesticidal preparations, and Its energy complete biodegradable, will not generate harm to environment, while it is a kind of renewable resource, before having long-range development Scape.
Preferably, the humate include humic acid alkali metal salt, humic acid ammonium salt or humic acid organic ammonium salt wherein One or more mixtures.
The beneficial effect of above-mentioned optimal technical scheme is: the humic acid that the present invention uses is that there is a kind of macromolecule in nature Machine substance forms each of humic acid mainly from the deposit of soil, water body and plant after microbial spoilage decomposes Structural unit mainly includes aromatic rings and active function groups, and active function groups include phenolic hydroxyl group, alcoholic extract hydroxyl group, carboxyl, carbonyl, quinone Base, enol base and amino etc. have amphiphatic molecule characteristic.Various active functional group in humic acid structure determines that it has parent Aqueous and hydrophobic amphiphatic molecule characteristic, adsorptivity, oxidation-reduction quality, complexing power, cation exchange capacity (CEC) etc. are unique Physicochemical properties can play synergistic effect with the use of lignin sulfonate surfactant compound, improve surface-active The peptizaiton of agent.
Preferably, the zwitterionic surfactant includes alkyl betaine, alkyl hydroxy sulfo lycine, alkylamide Propyl betaine, alkylamide propyl hydroxy sulfo lycine, carboxylic acid type imidazoline or amine-oxides class zwitterionic surfactant One of or a variety of mixtures.
Preferably, the zwitterionic surfactant includes dodecyldimethylammonium hydroxide inner salt, dodecyl hydroxyl sulphur Base glycine betaine, lauroylamidopropyl betaine, dodecanamide propyl hydroxy sulfo lycine, cocoyl hydroxy sulfo lycine, laurel Sour IAS tetradecyldimethylamine oxide is one of wherein or a variety of mixtures.
The beneficial effect of above-mentioned optimal technical scheme is: the amphoteric surfactant that the present invention uses has unique chemistry Structure makes it when with lignin sulfonate surfactant compound, has irreplaceable consonance or compatibility, thus Final surface activator composition can be improved in the peptizaiton of field of pesticide preparation.
Preferably, the PH regulator include fumaric acid, tartaric acid, citric acid, lactic acid, malic acid, acetic acid, adipic acid, One in sodium citrate, potassium citrate, sodium dihydrogen citrate, phosphate, calcium sulfate, calcium hydroxide, potassium hydroxide or sodium hydroxide Kind or a variety of mixtures.
Preferably, the PH regulator includes fumaric acid, citric acid, sodium hydroxide or potassium hydroxide.
The beneficial effect of above-mentioned optimal technical scheme is: the pH adjusting agent that the present invention uses can not influence sulfomethylated lignin To mixing under the premise of Barbiturates surfactant, humic acid or humate and zwitterionic surfactant structure and performance The pH value of system is adjusted.
A kind of preparation method of surface activator composition, which is characterized in that specifically comprise the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by lignin sulfonate surfactant, humic acid or humate, zwitterionic surfactant and PH Regulator, which is added to the water, to be stirred to being completely dissolved, then spray-dried rear up to surface activator composition of the present invention
Preferably, whipping process is first warming up to 50-60 DEG C, then heat preservation 2-3 hours in the step (2).
The beneficial effect of above-mentioned optimal technical scheme is: the present invention can make lignin sulfonate surface living using solvent Property agent, humic acid or humate, zwitterionic surfactant and PH regulator uniformly mix in water, and drying is Can be obtained the surface activator composition that property is uniform, stable, preparation process is simple, conveniently, and obtained product characteristics it is uniform, Stablize, there is excellent dispersion performance.
A kind of application of surface activator composition as described above in pesticidal preparations.
The beneficial effect of above-mentioned optimal technical scheme is: surface activator composition disclosed by the invention is answered as dispersing agent For that in pesticidal preparations, can significantly improve the suspensibility and suspension stability of pesticidal preparations, using effect is substantially better than wooden Plain sulfonate.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of surfactants Composition and its preparation method and application has the following beneficial effects:
(1) present invention is using lignosulfonates, humic acid and zwitterionic surfactant compounding, and is adjusted using pH Agent adjusts pH value to 5-10, forms a surfactant complex, is remarkably improved the dispersibility of lignosulfonates;
(2) preparation method disclosed by the invention is easy to operate, raw material can be made uniformly to mix, to make the table being prepared Face active agent properties are uniform, stablize.
(3) surfactant complex that the present invention is prepared is in pesticide water dispersible granules, wettable powder, suspending agent Middle use can significantly improve the suspensibility and suspension stability of pesticidal preparations;And in 70% imidacloprid of systemic insecticide agent It is applied in WDG, shows apparent synergistic effect compared to lignosulfonates are used alone.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.
The embodiment of the invention discloses a kind of surface activator composition, the components including following mass percent: 9.5% ~81% lignin sulfonate surfactant, 4.75%~72% humic acid or humate, 4~50% both sexes Ionic surface active agent and 0~5%PH regulator.
For further optimisation technique scheme, the lignin sulfonate surfactant includes sulfomethylated lignin soda acid Metal salt, lignin sulfonic acid ammonium salt or lignin sulfonic acid organic ammonium salt.
For further optimisation technique scheme, the sulfomethylated lignin acid alkali metal salt includes sodium lignin sulfonate, wooden Plain potassium sulfonate, calcium lignosulfonate or magnesium lignosulfonate.
For further optimisation technique scheme, the lignin sulfonate surfactant includes lignin sulfonic acid One of sodium, ammonium lignosulphonate, calcium lignosulfonate, magnesium lignosulfonate or potassium lignosulfonate or a variety of mixtures.
For further optimisation technique scheme, the humate include humic acid alkali metal salt, humic acid ammonium salt or Humic acid organic ammonium salt is one such or a variety of mixtures.
For further optimisation technique scheme, the zwitterionic surfactant includes alkyl betaine, alkyl hydroxyl Sulfobetaines, alkylamide propyl-betaine, alkylamide propyl hydroxy sulfo lycine, carboxylic acid type imidazoline or amine-oxides class One of zwitterionic surfactant or a variety of mixtures.
For further optimisation technique scheme, the zwitterionic surfactant includes dodecyl dimethyl beet Alkali, dodecyl hydroxyl sulfo betaine, lauroylamidopropyl betaine, dodecanamide propyl hydroxy sulfo lycine, cocoyl Hydroxy sulfo lycine, lauric acid IAS tetradecyldimethylamine oxide are one of wherein or a variety of mixtures.
For further optimisation technique scheme, the PH regulator includes fumaric acid, tartaric acid, citric acid, lactic acid, apple Tartaric acid, acetic acid, adipic acid, sodium citrate, potassium citrate, sodium dihydrogen citrate, phosphate, calcium sulfate, calcium hydroxide, potassium hydroxide Or one of sodium hydroxide or a variety of mixtures
For further optimisation technique scheme, the PH regulator includes fumaric acid, citric acid, sodium hydroxide or hydrogen-oxygen Change potassium.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by lignin sulfonate surfactant, humic acid or humate, zwitterionic surfactant and PH Regulator, which is added to the water, to be stirred to being completely dissolved, then spray-dried rear up to surfactant package of the present invention Object.
For further optimisation technique scheme, whipping process is first warming up to 50-60 DEG C, then protects in the step (2) It is 2-3 hours warm.
A kind of application of surface activator composition as described above in pesticidal preparations.
For further optimisation technique scheme, a kind of surface activator composition as described above as application of dispersant in In pesticidal preparations.
Embodiment 1
A kind of surface activator composition, the component including following quality: 40kg sodium lignin sulfonate, 20kg humic acid Potassium, 35kg dodecyldimethylammonium hydroxide inner salt and 5kg citric acid.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by 40kg sodium lignin sulfonate, 20kg potassium humate, 35kg dodecyldimethylammonium hydroxide inner salt and 5kg lemon Acid is added into reaction kettle, and 110kg water is added, and stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C Heat preservation 2 hours, it is spray-dried rear up to surface activator composition A1.
Wherein, sodium lignin sulfonate is that commercially available Bao Lige produces Ufoxane3A.
Embodiment 2
A kind of surface activator composition, the component including following quality: 50kg sodium lignin sulfonate, 45kg humic acid, 4kg dodecyl hydroxyl sulfo betaine and 1kg fumaric acid.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by 50kg sodium lignin sulfonate, 45kg humic acid, 4kg dodecyl hydroxyl sulfo betaine and 1kg fumaric acid It adds in reaction kettle, and 100kg water is added, stir to being completely dissolved, the solution being completely dissolved then is warming up to 55 DEG C of heat preservations 2 Hour, it is spray-dried rear up to surface activator composition A2.
Wherein, sodium lignin sulfonate is that commercially available Qing Yu Chemical Industry Science Co., Ltd produces SP-2202.
Embodiment 3
A kind of surface activator composition, the component including following quality: 81kg calcium lignosulfonate, 4.75kg humic acid Sodium, 13.25kg lauryl amidopropyl betaine and 1kg sodium hydroxide.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by 81kg calcium lignosulfonate, 4.75kg sodium humate, 13.25kg lauryl amidopropyl betaine and 1kg Sodium hydroxide adds in reaction kettle, and 100kg water is added, and stirs to being completely dissolved, is then warming up to the solution being completely dissolved 50 DEG C keep the temperature 2 hours, spray-dried rear up to surface activator composition A3.
Embodiment 4
A kind of surface activator composition, the component including following quality: 60kg potassium lignosulfonate, 10kg humic acid, 29kg dodecanamide propyl hydroxy sulfo lycine and 1kg citric acid
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by 60kg potassium lignosulfonate, 10kg humic acid, 29kg dodecanamide propyl hydroxy sulfo lycine and 1kg lemon Lemon acid adds in reaction kettle, and 100kg water is added, and stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C Heat preservation 2 hours, it is spray-dried rear up to surface activator composition A4.
Embodiment 5
A kind of surface activator composition, the component including following quality: 9.5kg ammonium lignosulphonate, 72kg humic acid Ammonium and 18.5kg lauric acid IAS.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) 9.5kg ammonium lignosulphonate, 72kg ammonium humate and 18.5kg lauric acid IAS are added in reaction kettle, and added Enter 100kg water to stir to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C and keeps the temperature 2 hours, after spray-dried Up to surface activator composition A5.
Embodiment 6
A kind of surface activator composition, the component including following quality: 9.5kg magnesium lignosulfonate, 40kg humic acid Potassium, 50kg tetradecyldimethylamine oxide and 0.5kg sodium hydroxide.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by 9.5kg magnesium lignosulfonate, 40kg potassium humate, the oxidation of 50kg dodecyldimethylamine base and 0.5kg hydrogen-oxygen Change sodium amine to add in reaction kettle, and 100kg water is added and stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C Heat preservation 2 hours, it is spray-dried rear up to surface activator composition A6.
Embodiment 7
A kind of surface activator composition, the component including following quality: 71kg sodium lignin sulfonate, 9kg sodium humate With 20kg tetradecyldimethylamine oxide.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) 71kg sodium lignin sulfonate, 9kg sodium humate and 20kg tetradecyldimethylamine oxide are added into reaction kettle In, and 100kg water is added and stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C and keeps the temperature 2 hours, through spraying Up to surface activator composition A7 after drying.
Embodiment 8
A kind of surface activator composition, the component including following quality: 80kg potassium lignosulfonate, 15kg humic acid Potassium, 4kg dodecanamide propyl hydroxy sulfo lycine and 1kg citric acid
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) by 80kg potassium lignosulfonate, 15kg potassium humate, 4kg dodecanamide propyl hydroxy sulfo lycine and 1kg lemon Lemon acid adds in reaction kettle, and 100kg water is added, and stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C Heat preservation 2 hours, it is spray-dried rear up to surface activator composition A8.
Embodiment 9
A kind of surface activator composition, the component including following quality: 45kg potassium lignosulfonate, 50kg humic acid Sodium, 5kg lauryl amidopropyl betaine.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) 45kg potassium lignosulfonate, 50kg sodium humate and 5kg lauryl amidopropyl betaine are added into reaction kettle In, and 100kg water is added, it stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C and keeps the temperature 2 hours, through spraying Up to surface activator composition A9 after mist is dry.
Embodiment 10
A kind of surface activator composition, the component including following quality: 25kg magnesium lignosulfonate, 60kg humic acid, 15kg lauryl amidopropyl betaine.
A kind of preparation method of surface activator composition, specifically comprises the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described above, it is spare;
(2) 25kg magnesium lignosulfonate, 60kg humic acid and 15kg lauryl amidopropyl betaine are added into reaction kettle In, and 100kg water is added, it stirs to being completely dissolved, the solution being completely dissolved then is warming up to 50 DEG C and keeps the temperature 2 hours, through spraying Up to surface activator composition A10 after mist is dry.
Effect detection is carried out to surface activator composition A1~A10 that above-described embodiment 1~10 is prepared
One, suspendability and suspension stability detection
1, test group
Respectively using above-mentioned surface activator composition A1~A6 for being prepared prepare 70% imidacloprid WDG respectively as Test group 1~6, method particularly includes:
Each raw material for standby is weighed according to formula, is formulated: imidacloprid 71kg, surface activator composition 10kg, K12 (12 Sodium alkyl sulfate) 3kg, and cornstarch is added and supplies 100kg;Above-mentioned raw materials are uniformly mixed, air-flow crushing, extrusion granulation, Drying is sieved into 70% imidacloprid WDG.
2, control group
Commercially available sodium lignin sulfonate Bao Lige is produced into the surface activator composition system in the Ufoxane3A replacement above method Standby 70% imidacloprid WDG, as a control group 1;Commercially available sodium lignin sulfonate Qing Yu Chemical Industry Science Co., Ltd is produced into SP- DF2202 replaces the surface activator composition in the above method and prepares 70% imidacloprid WDG, and as a control group 2.
3, detection method
According to agricultural-chemical suspension rate measuring method GB/T 14825-2006, above-mentioned test group 1~10 and control group 1~2 are detected Suspensibility, as a result as shown in table 1 below;
The detection method of suspension stability: referring to GB/T 14825-2006, the water dispersion of above-mentioned 70% imidacloprid WDG After liquid is placed 12 hours, then its suspensibility is detected, as a result as shown in table 1 below.
Table 1
Suspensibility (%) Suspensibility (%) after 12 hours
Test group 1 95.3% 70.2%
Test group 2 98.3% 71.5%
Test group 3 97.2% 70.9%
Test group 4 96.8% 69.9%
Test group 5 97.7% 70.6%
Test group 6 98.3% 72.5%
Test group 7 96.2% 70.0%
Test group 8 95.0% 69.1%
Test group 9 97.4% 70.0%
Test group 10 92.3% 70.5%
Control group 1 72.1% 35.2%
Control group 2 69.2% 30.1%
It can obviously be learnt by above-mentioned testing result: use lignin sulfonic acid dipersant, the present invention compared to control group The surface activator composition that Examples 1 to 10 is prepared is used to prepare 70% imidacloprid WDG, can significantly improve drug system The suspensibility of agent, and have the promotion become apparent to the suspension stability of pharmaceutical preparation.
Two, field medicine effect test
1, test group
70% imidacloprid WDG is prepared using the above-mentioned surface activator composition A1~A10 being prepared respectively to make respectively For test group 1~10, method particularly includes:
Each raw material for standby is weighed according to formula, is formulated: imidacloprid 71kg, surface activator composition 10kg, K12 (12 Sodium alkyl sulfate) 3kg, and cornstarch is added and supplies 100kg;Above-mentioned raw materials are uniformly mixed, air-flow crushing, extrusion granulation, Drying is sieved into 70% imidacloprid WDG.
2, control group
Commercially available sodium lignin sulfonate Bao Lige is produced into the surface activator composition system in the Ufoxane3A replacement above method Standby 70% imidacloprid WDG, as a control group 1;Commercially available sodium lignin sulfonate Qing Yu Chemical Industry Science Co., Ltd is produced into SP- DF2202 replaces the surface activator composition in the above method and prepares 70% imidacloprid WDG, and as a control group 2.
3,70% imidacloprid WDG of above-mentioned test group and control group is subjected to crop field by control object of aphid in wheat paddock Drug effect verifying.
Application method: mu is with 3 grams of preparation dosage, to 45 liters of progress foliar sprays of water.
Investigation method: using five point sampling, and 15 plants of each cell label investigates borer population living.It is respondent with aphid, Other insect populations are not in recording interval.Insect population is investigated before medicine, and 2d and 7d investigates preventive effect respectively after medicine, as a result as shown in table 2 below.
Drug effect calculation method: Revision insect recluced rate and preventive effect is calculated as follows:
Table 2
It can obviously be learnt by above-mentioned testing result: 1-2 compared to the control group, the aphid of above-mentioned 1~10 pair of wheat paddock of test group Worm is imitated and is obviously improved, and illustrates to use compared to using lignosulfonates to process 70% imidacloprid WDG as dispersing agent The 70% imidacloprid WDG that the surface activator composition that the embodiment of the present invention 1~10 is prepared is processed is to wheat paddock Aphid is imitated and is obviously improved.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of surface activator composition, which is characterized in that including following component: lignin sulfonate surfactant, Humic acid or humate, zwitterionic surfactant and PH regulator.
2. a kind of surface activator composition according to claim 1, which is characterized in that including following mass percent Component: 9.5%~81% lignin sulfonate surfactant, 4.75%~72% humic acid or humate, 4~ 50% zwitterionic surfactant and 0~5%PH regulator.
3. a kind of surface activator composition according to claim 2, which is characterized in that the lignin sulfonate table Face activating agent includes sulfomethylated lignin acid alkali metal salt, lignin sulfonic acid ammonium salt or lignin sulfonic acid organic ammonium salt.
4. a kind of surface activator composition according to claim 3, which is characterized in that the lignin sulfonate table Face activating agent includes sodium lignin sulfonate, ammonium lignosulphonate, calcium lignosulfonate, magnesium lignosulfonate or potassium lignosulfonate One of or a variety of mixtures.
5. a kind of surface activator composition according to claim 2, which is characterized in that the humate includes humic Acid alkali metal salt, humic acid ammonium salt or humic acid organic ammonium salt is one such or a variety of mixtures.
6. a kind of surface activator composition according to claim 2, which is characterized in that the amphoteric ion surface-active Agent includes alkyl betaine, alkyl hydroxy sulfo lycine, alkylamide propyl-betaine, alkylamide propyl hydroxyl sulfobetaines One of alkali, carboxylic acid type imidazoline or amine-oxides class zwitterionic surfactant or a variety of mixtures.
7. a kind of surface activator composition according to claim 2, which is characterized in that the PH regulator includes rich horse Acid, tartaric acid, citric acid, lactic acid, malic acid, acetic acid, adipic acid, sodium citrate, potassium citrate, sodium dihydrogen citrate, phosphate, One of calcium sulfate, calcium hydroxide, potassium hydroxide or sodium hydroxide or a variety of mixtures.
8. a kind of preparation method of surface activator composition, which is characterized in that specifically comprise the following steps:
(1) each raw material is weighed according to a kind of surface activator composition as described in claim 1~7 any one, it is spare;
(2) lignin sulfonate surfactant, humic acid or humate, zwitterionic surfactant and PH are adjusted Agent, which is added to the water, stirs to being completely dissolved, then spray-dried rear up to surface activator composition of the present invention.
9. a kind of preparation method of surface activator composition according to claim 8, which is characterized in that the step (2) whipping process is first warming up to 50-60 DEG C, then heat preservation 2-3 hours in.
10. a kind of application of surface activator composition as described in claim 1~7 any one in pesticidal preparations.
CN201811400670.7A 2018-11-22 2018-11-22 A kind of surface activator composition and its preparation method and application Pending CN109329278A (en)

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