CN107736347B - clodinafop-propargyl wettable powder and preparation method thereof - Google Patents
clodinafop-propargyl wettable powder and preparation method thereof Download PDFInfo
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- CN107736347B CN107736347B CN201710953000.7A CN201710953000A CN107736347B CN 107736347 B CN107736347 B CN 107736347B CN 201710953000 A CN201710953000 A CN 201710953000A CN 107736347 B CN107736347 B CN 107736347B
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- Prior art keywords
- clodinafop
- propargyl
- sodium
- wettable powder
- propargyl wettable
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N25/00—Biocides, 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
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N25/00—Biocides, 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
- A01N25/30—Biocides, 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
Abstract
The invention discloses a kind of clodinafop-propargyl wettable powders, belong to field of pesticide preparation.Above-mentioned clodinafop-propargyl wettable powder, is made of following materials by weight percentage：The diatomite of clodinafop-propargyl 10 20%, sodium thiosulfate 2 8%, sodium salicylate 4 8%, aluminium hydroxide 2 6%, double tridecanol sulfosuccinate sodium 6 12%, ethoxylated dodecyl alcohol 2 8%, sodium lignin sulfonate 2 6%, sodium acetate 0.1 0.8%, safener 2.5 5% and surplus.The clodinafop-propargyl wettable powder of the present invention has many advantages, such as that suspensibility is high, wetting time is short, does not lump, good drug efficacy.
Description
Technical field
The present invention relates to pesticide processing technical fields more particularly to a kind of clodinafop-propargyl wettable powder and preparation method thereof.
Background technology
Clodinafop-propargyl structural formula is as follows, is the chiral fluorine-containing high-efficiency low-toxicity herbicide of phenoxy carboxylic acid, and the mechanism of action is to inhibit
The activity of acetyl-CoA carboxylase (ACC) in plant, to influence the synthesis of aliphatic acid, and aliphatic acid is cell membrane is formed
Necessary material.Clodinafop-propargyl fusing point is low, 48.2-57.1 DEG C of fusing point；The organic solvents such as ethyl alcohol, ether, acetone, chloroform can be dissolved in,
105 DEG C of decomposition temperature, is decomposed under the conditions of strong acid and strong base.Wheat paddock rat-tail amur foxtail, tall oat grass, rye grass, common can be prevented
The grassy weeds such as annual bluegrass green bristlegrass.
Existing wettable powder (WP) is with pesticide original medicine, inert filler (being largely bentonite, kaolin etc.) and one
Quantitative auxiliary agent after being adequately mixed crushing in proportion, reaches the dosage form of certain particle size.From in shape, with pulvis without
Difference, but due to adding the auxiliary agents such as wetting agent, dispersant, can be readily wetted by water after being added in water, disperse, form suspension,
Sprayable application.Compared with missible oil, wettable powder production cost is low, can use paper bag or plastic bag packaging, and storage and transportation is convenient, pacifies
Entirely, packaging material is easier to handle；Importantly, wettable powder does not use solvent and emulsifier, it is safer to plant,
It is not likely to produce poisoning, it is environmentally safe, it is used before fruit bagging, can avoid stimulation of the organic solvent to fruit face.China produces
Wettable pesticide powder has the history of decades, but Wettable pesticide powder caking, suspensibility is low, wetting time length is asked
Topic annoyings always vast pesticide producing enterprise, and most producers are often due to the presence of the above problem makes the stability of pesticide
Difference adds anti-caking agent white carbon in formula, but the effect is unsatisfactory, and drug effect is not played well, and wastes active compound and auxiliary agent, increases
Agriculture production cost is added.
Since clodinafop-propargyl fusing point is low, solubility in organic solvent is larger, and it is to have one to be processed into wettable powder
Difficulty is determined, currently, the preparation process of clodinafop-propargyl wettable powder is usually by clodinafop-propargyl active compound, auxiliary agent (wetting agent, dispersion
Agent), carrier etc. carry out air-flow crushing together after being pre-mixed uniformly, due to the eutectic dot characteristics of clodinafop-propargyl, the preparation work
The shortcomings that skill is that clodinafop-propargyl active compound is easy heat melting in air-flow crushing and reunites, and crush efficiency reduces, and leads to clodinafop-propargyl
Effective Suspension rate is low, to influence its field using effect.
Invention content
In view of the deficiencies of the prior art, a kind of clodinafop-propargyl wettable powder of present invention offer and preparation method thereof.The present invention
The clodinafop-propargyl wettable powder of preparation has many advantages, such as that anti-caking, wetting is fast, suspensibility is high.
In order to solve the above technical problems, present invention offer technical solution is as follows：
A kind of clodinafop-propargyl wettable powder, is made of following materials by weight percentage：
Preferably, clodinafop-propargyl wettable powder of the invention, is made of following materials by weight percentage：
It is furthermore preferred that the clodinafop-propargyl wettable powder of the present invention, is made of following materials by weight percentage：
Further, the safener is cloquintocetmexyl.
The present invention also provides a kind of preparation methods of above-mentioned clodinafop-propargyl wettable powder, including：
Step 1：Diatomite is uniformly mixed with ethoxylated dodecyl alcohol, adds sodium thiosulfate, sodium salicylate, hydrogen
Aluminium oxide, double tridecanol sulfosuccinate sodium are uniformly mixed；
Step 2：Mixture, clodinafop-propargyl, safener, sodium lignin sulfonate and sodium acetate in step 1 is uniformly mixed, is obtained
Mixed material；
Step 3：Mixed material is refined, 45 μm of testing sieves is crossed, obtains clodinafop-propargyl wettable powder.
It is well known that wettable powder during storage to lump phenomena such as, during being dispersed in water,
The problems such as it is long that there are wetting times, and suspensibility is low.
As anti-caking auxiliary agent, the two has prodigious wettability power, absorption for sodium thiosulfate and sodium salicylate of the present invention
On diatomite surface, diatomite caking tendency caused by hygroscopicity can be reduced in the case where competing moisture absorption with diatomite；
Aluminium hydroxide can absorb heat, and the heat of a part can be absorbed in clodinafop-propargyl wettable preparation process, prevents clodinafop-propargyl
Melting is reunited；The present invention is by being added nonionic surfactant ethoxylated dodecyl alcohol and anion surfactant simultaneously
Double tridecanol sulfosuccinate sodium, wherein double tridecanol sulfosuccinate sodium have two hydrophobic chains, can be more preferably in particle
Adsorption, while its hydrophilic radical is more is conducive in quickly wetting and dispersing in water；Meanwhile ethoxylated dodecyl alcohol has
There is certain steric hindrance, there is " steric hindrance " repulsive force, particle aggregation can be effectively prevent.
In conclusion beneficial effects of the present invention are shown as：
1) for the present invention using sodium thiosulfate and sodium salicylate as anti-caking auxiliary agent, the two has prodigious wettability power,
It is adsorbed on diatomite surface, can be reduced diatomite in the case where competing moisture absorption with diatomite and lump caused by hygroscopicity
Tendency；
2) aluminium hydroxide can absorb heat, and the heat of a part can be absorbed in clodinafop-propargyl wettable preparation process,
Prevent clodinafop-propargyl melting from reuniting；
3) while using double tridecanol sulfosuccinate sodium and ethoxylated dodecyl alcohol as surfactant, shorten wetting
Time improves suspensibility.
Specific implementation mode
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Specific embodiment is described in detail.But the present invention is limited to absolutely not these examples.As described below is only the preferable implementation of the present invention
Example is only used to explain the present invention, therefore can not be interpreted as the limitation of the scope of the claims of the present invention.It should be pointed out that all
The all any modification, equivalent and improvement etc. done within the spirit and principles in the present invention should be included in the guarantor of the present invention
Within the scope of shield.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Embodiment 1
(1) diatomite is uniformly mixed according to the formula of embodiment 1 in table 1 with ethoxylated dodecyl alcohol, adds sulphur
Sodium thiosulfate, sodium salicylate, aluminium hydroxide, double tridecanol sulfosuccinate sodium are uniformly mixed；
(2) mixture, clodinafop-propargyl, cloquintocetmexyl, sodium lignin sulfonate and the sodium acetate in step 1 are uniformly mixed, are obtained mixed
Close material；
(3) mixed material is refined, crosses 45 μm of testing sieves, obtains clodinafop-propargyl wettable powder.
Table 1：Clodinafop-propargyl wettable powder formula table
Unit：Kilogram
Embodiment 2
Raw material is weighed by 1 corresponding embodiment of table, 2 data, is prepared as described in Example 1.
Embodiment 3
Raw material is weighed by 1 corresponding embodiment of table, 3 data, is prepared as described in Example 1.
Comparative example 1
1 data of comparative example are corresponded to by table 1 and weigh raw material, are prepared as described in Example 1.
Comparative example 2
2 data of comparative example are corresponded to by table 1 and weigh raw material, are prepared as described in Example 1.
Comparative example 3
3 data of comparative example are corresponded to by table 1 and weigh raw material, are prepared as described in Example 1.
Comparative example 4
4 data of comparative example are corresponded to by table 1 and weigh raw material, are prepared as described in Example 1.
Comparative example 5
5 data of comparative example are corresponded to by table 1 and weigh raw material, are prepared as described in Example 1.
Comparative example 6
Sodium thiosulfate in embodiment 3 is replaced with into sodium citrate, sodium salicylate is replaced with into methenamine, remaining reagent
And dosage is same as Example 3, is prepared as described in Example 1.
Comparative example 7
Double tridecanol sulfosuccinate sodium in embodiment 3 are substituted for diisooctyl succinate sodium sulfonate, remaining examination
Agent and dosage are same as Example 3, are prepared as described in Example 1.
Embodiment 4
Raw material is weighed by 1 corresponding embodiment of table, 4 data, is prepared as described in Example 1.
Embodiment 5
Raw material is weighed by 1 corresponding embodiment of table, 5 data, is prepared as described in Example 1.
Wettable powder prepared by above-described embodiment and comparative example is according to standard《GB/T1600-2001 pesticide moisture is surveyed
Determine method》Moisture is measured, according to《GB/T5451-2001 pesticide wettable wettability determination methods》When measuring wetting
Between, according to《GB/T14825-2006 agricultural-chemical suspension rate assay methods》Its suspensibility is surveyed, specific data see the table below 2.
Table 2
As shown in Table 2, the wettable powder that prepared by the present invention has higher suspensibility, while wetting time is short, moisture
The advantages that content is few.Compared with comparative example 5, suspensibility is higher, it may be possible to the double tridecanol sulfosuccinics used due to the present invention
Acid esters sodium has two hydrophobic chains, can more preferably be adsorbed in particle surface, while its hydrophilic radical is more, conducive to quickly moistening in water
Hygroscopic water dissipates, and with ethoxylated dodecyl alcohol collective effect, largely shortens wetting time, improves suspensibility.By double ten
Triol sulfosuccinate sodium is substituted for diisooctyl succinate sodium sulfonate (comparative example 7), and suspensibility reduces, this is because not
With the surfactant of chain length, has an impact to suspending agent suspendability, suspension stability is caused to reduce.Compared with comparative example 1-3,
The sodium thiosulfate or/and sodium salicylate that the present invention contains, the two is soluble easily in water, increases the density of medium to a certain extent,
Improve its suspendability.Compared with comparative example 4, moisture of the invention is less, and suspensibility is higher and wetting time is shorter,
It may be the presence due to aluminium hydroxide, effectively prevent the generation of the melting agglomeration of clodinafop-propargyl in preparation process.With comparison
Example 6 is compared, and the anticaking agent effect that the present invention selects is more preferable.
After above-described embodiment and the wettable powder storage at normal temperature of comparative example 1 month, observation finds the product of comparative example 3
There is caking phenomenon；After continuing storage 3 months, there is caking phenomenon in the product of comparative example 1-2 and comparative example 4；And embodiment 1-5
And the wettable powder storage at normal temperature of comparative example 3 and comparative example 62 years, no caking phenomenon generates.It follows that sodium thiosulfate
With sodium salicylate there is stronger hygroscopic effect, the two synergistic effect can effectively prevent pesticide wettable caking phenomenon
Generation, and to a certain extent, the presence of aluminium hydroxide prevents the generation of caking phenomenon；And the clodinafop-propargyl wettable of the present invention
Other indexs of pulvis significantly improve, and such as suspensibility height, wetting time is short, and powder is loose.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of clodinafop-propargyl wettable powder, which is characterized in that be made of following materials by weight percentage：
2. clodinafop-propargyl wettable powder according to claim 1, which is characterized in that by following materials by weight percentage group
At：
3. clodinafop-propargyl wettable powder according to claim 2, which is characterized in that by following materials by weight percentage group
At：
4. according to any clodinafop-propargyl wettable powders of claim 1-3, which is characterized in that the safener is removing toxic substances
Quinoline.
5. the preparation method of any clodinafop-propargyl wettable powders of claim 1-4, which is characterized in that including：
Step 1：Diatomite is uniformly mixed with ethoxylated dodecyl alcohol, adds sodium thiosulfate, sodium salicylate, hydroxide
Aluminium, double tridecanol sulfosuccinate sodium are uniformly mixed；
Step 2：Mixture, clodinafop-propargyl, safener, sodium lignin sulfonate and sodium acetate in step 1 is uniformly mixed, must be mixed
Material；
Step 3：Mixed material is refined, 45 μm of testing sieves is crossed, obtains clodinafop-propargyl wettable powder.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103250703A (en) * | 2012-02-15 | 2013-08-21 | 陕西美邦农药有限公司 | Synergistic weeding composition containing clodinafop-propargyl |
| CN104522023A (en) * | 2014-12-23 | 2015-04-22 | 安徽众邦生物工程有限公司 | Wheat field herbicide composition containing clodinafop-propargyl |
| CN105532667A (en) * | 2016-02-26 | 2016-05-04 | 江苏丰山集团股份有限公司 | Clodinafop-propargyl wettable powder and preparation method thereof |
| CN106577670A (en) * | 2016-12-31 | 2017-04-26 | 新昌县鼎兴生物技术有限公司 | Wettable powder of propargyl ester and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103250703A (en) * | 2012-02-15 | 2013-08-21 | 陕西美邦农药有限公司 | Synergistic weeding composition containing clodinafop-propargyl |
| CN104522023A (en) * | 2014-12-23 | 2015-04-22 | 安徽众邦生物工程有限公司 | Wheat field herbicide composition containing clodinafop-propargyl |
| CN105532667A (en) * | 2016-02-26 | 2016-05-04 | 江苏丰山集团股份有限公司 | Clodinafop-propargyl wettable powder and preparation method thereof |
| CN106577670A (en) * | 2016-12-31 | 2017-04-26 | 新昌县鼎兴生物技术有限公司 | Wettable powder of propargyl ester and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 15%炔草酯可湿性粉剂配方研究;许如芳 等;《现代农药》;20080831;第7卷(第4期);参见正文 * |
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Address after: 621000 South Section of Mianzhou Avenue, Mianyang City, Sichuan Province, 329 Patentee after: SICHUAN LIER CROP SCIENCES Co.,Ltd. Address before: 621000 No.77 Shuangyong Road, Fenggu Town, Fucheng District, Mianyang City, Sichuan Province Patentee before: SICHUAN LIER CROP SCIENCES Co.,Ltd. |