Foam-removing wetting agent composition for pesticide solid preparation

Abstract

The invention discloses a foam-removing wetting agent composition for a pesticide solid preparation, and relates to the field of pesticide preparations. The composition comprises the following components in percentage by weight: 1-10% of a foam-removing wetting agent, 1-10% of a dispersing agent, 1-80% of an active ingredient of a raw medicine and the balance of filler, totaling 100%, all the components are added according to the proportion, and the product is prepared by sequentially carrying out pre-mixing, air jet pulverization, post-mixing, water adding, granulation and drying. The foam cleaning wetting agent is prepared from the following components in parts by weight: 10 to 60 parts of diisooctyl maleate sulfonate, 10 to 30 parts of palm oil fatty acid sodium salt, 10 to 50 parts of fatty alcohol polyoxyethylene ether sodium sulfate and 10 to 50 parts of white carbon black. The foam-removing wetting agent composition disclosed by the invention can solve the problems of poor wetting performance, low suspension rate and large foam of wettable powder, can improve the flowability and anti-caking property of a preparation, and can enhance the prevention and treatment effects of active ingredients.

Description

Technical Field

[0001] The invention belongs to the field of pesticide preparations, and particularly relates to a foam-clearing wetting agent composition for pesticide solid preparations. Background Art

[0002] At present, in the field of pesticide preparation processing, many products achieve the effect of long-lasting defoaming by adding defoamers. However, adding defoamers has the following disadvantages: (1) it affects the wetting properties of the product, resulting in a longer wetting time when the product enters water; (2) it affects the suspension rate of the product, resulting in a much lower suspension rate of the product; (3) after the defoaming is crushed by air flow, the structure of the defoamer itself is destroyed and it cannot play a defoaming role. Therefore, in view of the above problems, the present technical solution proposes a defoaming wetting agent composition for pesticide solid preparations. Summary of the invention

[0003] The present invention provides a foam-free wetting agent composition for a pesticide solid preparation, which can effectively solve the problems of poor wetting performance, low suspension rate and large foam of a wettable powder, improve the fluidity and anti-caking property of the preparation, enhance the control effect of the active ingredient, and make the product have a short wetting time, a high suspension rate and low foam; in summary, the problems in the background technology are solved.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The foam-clearing wetting agent composition for a pesticide solid preparation of the present invention is made of the following components in terms of weight percentage:

[0006] 1-10% of a bubble-clearing wetting agent, 1-10% of a dispersant, 1-80% of the active ingredient of the original drug, and fillers are used to make up to 100%; each component is added in proportion, pre-mixed in sequence, air flow crushed, and then post-mixed, granulated with water, and dried to obtain the product; the dispersant is a naphthalenesulfonate dispersant;

[0007] The foam-clearing wetting agent is composed of the following components in parts by weight:

[0008] 10-60 parts of diisooctyl maleate sulfonate;

[0009] 10-30 parts of palm oil fatty acid sodium salt;

[0010] 10-50 parts of sodium polyoxyethylene fatty alcohol ether sulfate;

[0011] 10-50 parts of white carbon black.

[0012] Furthermore, the active ingredient of the original drug is at least one of imidacloprid, thiamethoxam, pymetrozine, chlorantraniliprole, diflubenzuron, metribuzin, carbendazim, tebuconazole, pyridaben, buprofezin, diuron, bensulfuron-methyl, benzylsulfuron-methyl, clodinafop-butyl, atrazine, and emamectin benzoate.

[0013] Furthermore, the filler is at least one of kaolin, diatomaceous earth, bentonite, titanium dioxide, attapulgite, starch, ammonium sulfate, sodium sulfate and silicon dioxide.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The foam-free wetting agent composition provided by the present invention can solve the problems of poor wetting performance, low suspension rate and large foam of wettable powder, improve the fluidity and anti-caking property of the preparation, and enhance the control effect of the active ingredient;

[0016] (2) The foam-clearing wetting agent of the present invention achieves the advantages of the foam-clearing wetting agent composition by combining four substances in a certain ratio; diisooctyl maleate sulfonate is an anionic surfactant having the characteristics of rapid and uniform penetration, good wettability, emulsification, etc., palm oil fatty acid sodium salt belongs to a soap base, which itself has the characteristic of low foaming, and sodium fatty alcohol polyoxyethylene ether sulfate has the characteristics of improving wettability and suspension rate, and white carbon black has the characteristic of improving the flowability of the product.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 The present invention is a process flow chart of a foam-clearing wetting agent composition for a solid pesticide preparation according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The foam-clearing wetting agent composition for a pesticide solid preparation of the present invention is made of the following components in terms of weight percentage:

[0022] 1-10% of a foam-clearing wetting agent, 1-10% of a dispersant, 1-80% of the active ingredient of the original drug, and fillers are used to make up to 100%; each component is added in proportion, pre-mixed in sequence, air flow crushed, post-mixed, granulated with water and dried to obtain the product;

[0023] The foam-clearing wetting agent is composed of the following components in parts by weight:

[0024] 10-60 parts of diisooctyl maleate sulfonate;

[0025] 10-30 parts of palm oil fatty acid sodium salt;

[0026] 10-50 parts of sodium polyoxyethylene fatty alcohol ether sulfate;

[0027] 10-50 parts of white carbon black.

[0028] Among them, the active ingredient of the original drug is at least one of imidacloprid, thiamethoxam, pymetrozine, chlorantraniliprole, diflubenzuron, metribuzin, carbendazim, tebuconazole, pyridaben, buprofezin, diuron, bensulfuron-methyl, benzylsulfuron-methyl, clodinafop-butyl, atrazine and emamectin benzoate.

[0029] The filler is at least one of kaolin, diatomaceous earth, bentonite, titanium dioxide, attapulgite, starch, ammonium sulfate, sodium sulfate and silicon dioxide.

[0030] The mixing, granulating with water and drying are specifically prepared by mixing, granulating with water and drying. Specific embodiment 1:

[0032] In terms of weight percentage, it is made of the following components:

[0033] like Figure 1 As shown, atrazine water dispersible granules are prepared;

[0034] Specifically, 2% of a foam-clearing wetting agent, 5% of a dispersant, and 80% of the original active ingredient, specifically atrazine, are added with fillers to make up to 100%, with the added amount being 14%; each component is added in proportion, pre-mixed in sequence, air flow crushed, post-mixed, granulated with water, and dried to obtain an atrazine water-dispersible granule product; a naphthalenesulfonate dispersant is used as the dispersant;

[0035] Wherein, the foam-clearing wetting agent is composed of the following components in parts by weight:

[0036] 50 parts of diisooctyl maleate sulfonate

[0037] 12 parts of palm oil fatty acid sodium salt

[0038] 23 parts of fatty alcohol polyoxyethylene ether sodium sulfate

[0039] 15 parts of white carbon black

[0040] Experimental data:

[0041] The foam-clearing wetting agent composition for pesticide solid preparations can effectively solve the wetting, suspension rate, and persistent foaming of the preparations, and the foam-clearing wetting agent composition has a good defoaming effect in standard A water, standard D water, tap water, and water with a higher temperature;

[0042] Take atrazine water dispersible granules as an example: in standard D water (hardness 342PPM in terms of calcium carbonate), the persistent foaming capacity is 20ML, in standard A water (hardness 20PPM in terms of calcium carbonate), the persistent foaming capacity is 30ML, in tap water, the persistent foaming capacity is 24ML, and in 30℃ standard D water, the persistent foaming capacity is 22ML; Specific embodiment 2:

[0044] The difference between this specific embodiment and specific embodiment 1 is that:

[0045] Specifically, 4% of a purifying wetting agent, 5% of a dispersant, and 80% of the active ingredient of the original drug, specifically atrazine, are added with a filler to make up to 100%, and the added amount is 11%; each component is added in proportion, and is sequentially pre-mixed, air flow crushed, and then post-mixed, granulated with water, and dried to obtain an atrazine water dispersible granule product;

[0046] Experimental data:

[0047] In standard D water (hardness 342PPM as calcium carbonate), the persistent foaming capacity is 12ML, in standard A water (hardness 20PPM as calcium carbonate), the persistent foaming capacity is 20ML, in tap water, the persistent foaming capacity is 18ML, and in 30℃ standard D water, the persistent foaming capacity is 14ML. Specific embodiment 3:

[0049] The difference between this specific embodiment and specific embodiment 1 is that:

[0050] Specifically, 6% of a purifying wetting agent, 5% of a dispersant, and 80% of the original active ingredient, specifically atrazine, are added with a filler to make up to 100%, and the added amount is 9%; each component is added in proportion, and is sequentially pre-mixed, air flow crushed, and then post-mixed, granulated with water, and dried to obtain an atrazine water dispersible granule product;

[0051] Experimental data:

[0052] In standard D water (hardness 342PPM as calcium carbonate), the persistent foaming capacity is 2ML, in standard A water (hardness 20PPM as calcium carbonate), the persistent foaming capacity is 10ML, in tap water, the persistent foaming capacity is 10ML, and in 30℃ standard D water, the persistent foaming capacity is 6ML.

[0053] Through specific examples 1-3, it can be known that, based on the same active ingredient of the original drug, within the numerical range, the higher the proportion of the antifoaming wetting agent used, the better the defoaming effect.

[0054] Through other experiments, it has been verified that the same effect can be achieved for other active ingredients of the original medicine, such as imidacloprid, thiamethoxam, pymetrozine, chlorantraniliprole, diflubenzuron, metribuzin, carbendazim, tebuconazole, pyridaben, buprofezin, diuron, bensulfuron-methyl, benzylsulfuron-methyl, clodinafop-butyl, atrazine, and emamectin benzoate. Specific embodiment 4:

[0056] The difference between this specific embodiment and specific embodiment 1 is that:

[0057] The foam-clearing wetting agent is composed of the following components in parts by weight:

[0058] 60 parts of diisooctyl maleate sulfonate

[0059] 10 parts of palm oil fatty acid sodium salt

[0060] 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate

[0061] 10 parts of white carbon black

[0062] After experimental verification, in standard D water (hardness 342PPM in terms of calcium carbonate), the persistent foaming capacity is 2ML, in standard A water (hardness 20PPM in terms of calcium carbonate), the persistent foaming capacity is 10ML, in tap water, the persistent foaming capacity is 6ML, and in 30℃ standard D water, the persistent foaming capacity is 4ML; Specific embodiment 5:

[0064] The difference between this specific embodiment and specific embodiment 1 is that:

[0065] 10 parts of diisooctyl maleate sulfonate

[0066] 10 parts of palm oil fatty acid sodium salt

[0067] 50 parts of fatty alcohol polyoxyethylene ether sodium sulfate

[0068] 30 parts of white carbon black

[0069] In standard D water (hardness 342PPM as calcium carbonate), the persistent foaming capacity is 18ML, in standard A water (hardness 20PPM as calcium carbonate), the persistent foaming capacity is 35ML, in tap water, the persistent foaming capacity is 20ML, and in 30℃ standard D water, the persistent foaming capacity is 22ML.

[0070] It can be seen that when the proportion of sodium polyoxyethylene fatty alcohol ether sulfate is the same or similar, the higher the proportion of di(2-ethylhexyl)maleate sulfonate, the better the defoaming effect.

[0071] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A foam-clearing wetting agent composition for a solid pesticide preparation, characterized in that: In terms of weight percentage, it is made of the following components: 1-10% of a foam-clearing wetting agent, 1-10% of a dispersant, 1-80% of the active ingredient of the original drug, and fillers are used to make up to 100%; each component is added in proportion, pre-mixed in sequence, air flow crushed, post-mixed, granulated with water and dried to obtain the product; The foam-clearing wetting agent is composed of the following components in parts by weight: 10-60 parts of diisooctyl maleate sulfonate; 10-30 parts of palm oil fatty acid sodium salt; 10-50 parts of sodium polyoxyethylene fatty alcohol ether sulfate; 10-50 parts of white carbon black.

2. A foam-clearing wetting agent composition for solid pesticide preparations according to claim 1, characterized in that: The active ingredient of the original drug is at least one of imidacloprid, thiamethoxam, pymetrozine, chlorantraniliprole, diflubenzuron, metribuzin, carbendazim, tebuconazole, pyridaben, buprofezin, diuron, bensulfuron-methyl, benzylsulfuron-methyl, clodinafop-butyl, atrazine and emamectin benzoate.

3. A foam-clearing wetting agent composition for a pesticide solid preparation according to claim 1, characterized in that: The filler is at least one of kaolin, diatomaceous earth, bentonite, titanium dioxide, attapulgite, starch, ammonium sulfate, sodium sulfate and silicon dioxide.

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