阅读说明：本技术 一种农用增效剂的配方及其制备方法 (Formula and preparation method of agricultural synergist ) 是由 苏春光 杨闯 张宏图 宋卫东 于 2021-01-16 设计创作，主要内容包括：本发明涉及农用增效剂技术领域,特别涉及一种农用增效剂的配方及其制备方法。本发明的配方,其按照质量百分比包括以下组份：有机硅表面活性剂30％-60％、渗透剂0-5％、粘着剂10-40％、保湿剂5-10％,乳化剂10-25％。本发明的一种农用增效剂的配方及其制备方法,其在保证增强润湿、铺展、渗透性的基础上,增加吸收、传导功能,又具有优异的粘着性、防漂移、抗蒸发功能,即可桶混使用也可以作为配方助剂添加到制剂配方中,在大田作物、果蔬作物上的病虫草害防治都有广阔的应用前景。(The invention relates to the technical field of agricultural synergist, in particular to a formula of an agricultural synergist and a preparation method thereof. The formula comprises the following components in percentage by mass: 30-60% of organosilicon surfactant, 0-5% of penetrating agent, 10-40% of adhesive, 5-10% of humectant and 10-25% of emulsifier. The formula of the agricultural synergist and the preparation method thereof provided by the invention have the advantages that on the basis of ensuring enhanced wetting, spreading and permeability, the absorption and conduction functions are increased, the agricultural synergist has excellent adhesion, anti-drift and anti-evaporation functions, can be used in a tank mixture, can also be used as a formula auxiliary agent to be added into a preparation formula, and has wide application prospects in prevention and control of diseases, insect pests and weeds on field crops and fruit and vegetable crops.)

1. The formula of the agricultural synergist comprises the following components in percentage by mass:

30-60% of organosilicon surfactant, 0-5% of penetrating agent, 10-40% of adhesive, 5-10% of humectant and 10-25% of emulsifier.

2. The formulation of an agricultural synergist according to claim 1, wherein the organic surfactant is one or a combination of polyether modified silicone or alkynol modified polysiloxane.

3. The formulation of an agricultural synergist according to claim 2, wherein the organic surfactant is a mixture of polyether modified silicone and alkynol modified silicone, wherein the polyether modified silicone accounts for 20-40%, and the alkynol modified polysiloxane accounts for 10-20%.

4. An agricultural synergist formulation according to claim 1, wherein the penetrant is laurocapram.

5. An agricultural synergist formulation according to claim 1, wherein the binder is vegetable oil.

6. The formulation of claim 5, wherein said vegetable oil is one or a mixture of more than 2 of soybean oil, peanut oil, corn oil, safflower oil and castor oil.

7. The formulation of claim 15, wherein the humectant is polyethylene oxide having a molecular weight of 200-.

8. The formulation of claim 1, wherein said emulsifier is a nonionic surfactant.

9. The formulation of claim 7, wherein the emulsifier is one or a mixture of more than 2 of fatty alcohol-polyoxyethylene ether, isomeric alcohol ether, polyoxyethylene sorbitan fatty acid ester, and sorbitan fatty acid ester.

10. A preparation method of an agricultural synergist comprises the following steps:

A. adding the emulsifier and polyether modified organic silicon into a stirring kettle, heating to 80-90 ℃, rotating at the speed of 60-100r/min, and stirring for 30-60min under heat preservation to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding alkynol modified organic silicon, stirring at the rotating speed of 60-100r/min for 30-40min to obtain a uniform and transparent mixture;

C. cooling to 40 deg.C, slowly adding vegetable oil at a rotation speed of not less than 200r/min, homogenizing and emulsifying for 30-50min to obtain uniform and transparent mixture;

D. finally, sequentially adding polyethylene oxide and laurocapram, and uniformly stirring.

Technical Field

The invention relates to the technical field of agricultural synergist, in particular to a formula of an agricultural synergist and a preparation method thereof.

Background

An agricultural synergist belongs to one of agricultural additives. The pesticide composition has no biological activity, but can obviously improve the prevention and control effect on plant diseases and insect pests when being matched with agricultural chemicals such as pesticides, leaf fertilizers and the like.

The prior agricultural synergist comprises:

(1) surfactants. The synergist has certain wetting action and good permeability, but is poor in spreading and adhesion, unobvious in synergistic action, low in natural degradation rate in the environment, rich in foam when used on site, and inconvenient in dispensing and applying;

(2) vegetable oils. The adhesive has good adhesiveness and an anti-evaporation function, but hardly has wetting, spreading and permeability, is easy to oxidize and deteriorate, and is unstable when being added into a preparation;

(3) and (3) silicones. The organic silicon compound has super wetting property, spreading property and good permeability, but the crop general safety is weaker, most of organic silicon can only be used as a high-efficiency tank mixing auxiliary agent, the organic silicon compound is difficult to add into a preparation formula, and the organic silicon compound has rich foam and strong foam stability when used on site, and brings inconvenience to dosage and application.

As mentioned above, most of the existing agricultural synergists have single function and limited application, and especially have no obvious synergistic effect on resisting venereal diseases, insects and weeds.

Disclosure of Invention

In order to solve the problems of the prior art, the invention provides a formula of an agricultural synergist and a preparation method thereof, which increase the absorption and conduction functions on the basis of ensuring the enhancement of wetting, spreading and permeability, have excellent adhesion, anti-drift and anti-evaporation functions, can be used in a tank and can also be used as a formula auxiliary agent to be added into a preparation formula, and have wide application prospect in the prevention and control of diseases, pests and weeds on field crops and fruit and vegetable crops.

The technical scheme adopted by the invention is as follows:

the formula of the agricultural synergist comprises the following components in percentage by mass:

30-60% of organosilicon surfactant, 0-5% of penetrating agent, 10-40% of adhesive, 5-10% of humectant and 10-25% of emulsifier.

The organic surfactant is one or the combination of polyether modified organic silicon or alkynol modified polysiloxane.

The organic surfactant is a mixture of polyether modified organic silicon and alkynol modified organic silicon, wherein the polyether modified organic silicon accounts for 20-40%, and the alkynol modified polysiloxane accounts for 10-20%.

The penetrant is laurocapram.

The adhesive is vegetable oil.

The vegetable oil is one or mixture of more than 2 of soybean oil, peanut oil, corn oil, safflower seed oil and castor oil.

The humectant is polyethylene oxide with molecular weight of 200-800.

The emulsifier is a nonionic surfactant.

The emulsifier is one or a mixture of more than 2 of fatty alcohol-polyoxyethylene ether, isomeric alcohol ether, polyoxyethylene sorbitan fatty acid ester and sorbitan fatty acid ester.

A preparation method of an agricultural synergist comprises the following steps:

A. adding the emulsifier and polyether modified organic silicon into a stirring kettle, heating to 80-90 ℃, rotating at the speed of 60-100r/min, and stirring for 30-60min under heat preservation to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding alkynol modified organic silicon, stirring at the rotating speed of 60-100r/min for 30-40min to obtain a uniform and transparent mixture;

C. cooling to 40 deg.C, slowly adding vegetable oil at a rotation speed of not less than 200r/min, homogenizing and emulsifying for 30-50min to obtain uniform and transparent mixture;

D. finally, sequentially adding polyethylene oxide and laurocapram, and uniformly stirring.

The technical scheme provided by the invention has the beneficial effects that:

the formula and the preparation method can complement the performances of the components, can fully exert the synergistic effect of the components, increase the absorption and conduction functions on the basis of ensuring the enhancement of wetting, spreading and permeability, have excellent adhesion, anti-drifting and anti-evaporation functions, can be used in a tank mixture way, can also be used as a formula auxiliary agent to be added into the formula of the preparation, and have wide application prospect in the prevention and control of diseases, pests and weeds on field crops and fruit and vegetable crops.

In addition, the synergistic additive is unstable in foaming in the using process, and is helpful for relieving the problem of inconvenience in application caused by the foaming problem of the additive in the using process.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description is further provided in conjunction with the embodiments.

Example one

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

100kg of fatty alcohol-polyoxyethylene ether, 70kg of isomeric alcohol ether, 400kg of polyether modified organic silicon, 200kg of alkynol modified organic silicon, 100kg of corn oil, 600100 kg of polyethylene oxide and 30kg of laurocapram.

The preparation process comprises the following steps:

A. sequentially stirring 100kg of fatty alcohol-polyoxyethylene ether, 70kg of isomeric alcohol ether and 400kg of polyether modified organic silicon in a stirring kettle, heating to 90 ℃, keeping the rotating speed at 60r/min, and stirring for 40min to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 200kg of alkynol modified organic silicon at the rotating speed of 60r/min, and stirring for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 deg.C, slowly adding corn oil 100kg, rotating at 300r/min after adding, homogenizing and emulsifying for 50min to obtain uniform and transparent mixture;

D. finally, polyethylene oxide 600100 kg and laurocapram 30kg are added in sequence, and the mixture is stirred until the mixture is transparent and uniform.

Example two

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

100kg of fatty alcohol-polyoxyethylene ether, 50kgg kg of polyoxyethylene sorbitan fatty acid ester, 280kg of polyether modified organic silicon, 170kg of alkynol modified organic silicon, 200kg of soybean oil, 400170 kg of polyethylene oxide and 30kg of laurocapram.

The preparation process comprises the following steps:

A. adding 100kg of fatty alcohol-polyoxyethylene ether, 50kg of polyoxyethylene sorbitan fatty acid ester and 280kg of polyether modified organic silicon into a stirring kettle, heating to 80 ℃, keeping the rotating speed at 60r/min, and stirring for 40min to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 170kg of alkynol modified organic silicon, stirring at the rotating speed of 60r/min for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 ℃, slowly adding 200kg of soybean oil, rotating at 300r/min after the soybean oil is added, and homogenizing and emulsifying for 30min to obtain a uniform and transparent mixture;

D. finally, 400170 kg of polyethylene oxide and 30kg of laurocapram are added in sequence, and the mixture is stirred until the mixture is transparent and uniform.

EXAMPLE III

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

100kg of fatty alcohol-polyoxyethylene ether, 50kgg kg of polyoxyethylene sorbitan fatty acid ester, 400kg of polyether modified organic silicon, 180kg of alkynol modified organic silicon, 120kg of peanut oil, 600100 kg of polyethylene oxide and 50kg of laurocapram.

The preparation process comprises the following steps:

A. adding 100kg of fatty alcohol-polyoxyethylene ether, 50kg of polyoxyethylene sorbitan fatty acid ester and 400kg of polyether modified organic silicon into a stirring kettle, heating to 80 ℃, keeping the rotating speed at 60r/min, and stirring for 40min to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 180kg of alkynol modified organic silicon at the rotating speed of 60r/min, and stirring for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 ℃, slowly adding 120kg of peanut oil, rotating at 300r/min after the peanut oil is added, and homogenizing and emulsifying for 30min to obtain a uniform and transparent mixture;

D. finally, polyethylene oxide 600100 kg and laurocapram 50kg are added in sequence, and the mixture is stirred until the mixture is transparent and uniform.

Example four

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

80kg of fatty alcohol-polyoxyethylene ether, 70kg of polyoxyethylene sorbitan fatty acid ester, 50kg of sorbitan fatty acid, 340kg of polyether modified organic silicon, 160kg of alkynol modified organic silicon, 100kg of safflower seed oil, 50kg of castor oil, 200100 kg of polyethylene oxide and 50kg of laurocapram.

The preparation process comprises the following steps:

A. adding 80kg of fatty alcohol-polyoxyethylene ether, 70kg of polyoxyethylene sorbitan fatty acid ester, 50kg of sorbitan fatty acid and 340kg of polyether modified organic silicon into a stirring kettle, heating to 90 ℃, rotating at the speed of 60r/min, and stirring for 40min while keeping the temperature to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 160kg of alkynol modified organic silicon, stirring at the rotating speed of 60r/min for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 ℃, slowly adding 100kg of safflower seed oil and 50kg of castor oil, after the addition is finished, rotating at the speed of 300r/min, and homogenizing and emulsifying for 30min to obtain a uniform and transparent mixture;

D. finally, adding 200100 kg of polyethylene oxide and 50kg of laurocapram in turn, and stirring the mixture until the mixture is transparent and uniform.

EXAMPLE five

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

130kg of isomeric alcohol ether, 70kg of fatty alcohol-polyoxyethylene ether, 220kg of polyether modified organic silicon, 120kg of alkynol modified organic silicon, 210kg of soybean oil, 90kg of safflower seed oil, 200130 kg of polyethylene oxide and 30kg of laurocapram.

The preparation process comprises the following steps:

A. adding 130kg of isomeric alcohol ether, 70kg of fatty alcohol-polyoxyethylene ether and 220kg of polyether modified organic silicon into a stirring kettle, heating to 90 ℃, rotating at the speed of 60r/min, and stirring for 40min at a constant temperature to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 120kg of alkynol modified organic silicon, stirring at the rotating speed of 60r/min for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 ℃, slowly adding 210kg of soybean oil and 90kg of safflower seed oil, after the addition is finished, rotating at the speed of 300r/min, and homogenizing and emulsifying for 30min to obtain a uniform and transparent mixture;

D. finally, adding 200130 kg of polyethylene oxide and 30kg of laurocapram in turn, and stirring the mixture until the mixture is transparent and uniform.

EXAMPLE six

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

100kg of isomeric alcohol ether, 70kg of polyoxyethylene sorbitan fatty acid ester, 50kg of sorbitan fatty acid, 320kg of polyether modified organic silicon, 180kg of alkynol modified organic silicon, 120kg of corn oil, 60kg of castor oil, 90kg of safflower seed oil, 20050 kg of polyethylene oxide and 50kg of laurocapram.

The preparation process comprises the following steps:

A. adding 100kg of isomeric alcohol ether, 70kg of polyoxyethylene sorbitan fatty acid ester, 50kg of sorbitan fatty acid and 320kg of polyether modified organic silicon into a stirring kettle, heating to 80 ℃, rotating at 80r/min, and stirring for 40min under the condition of heat preservation to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 180kg of alkynol modified organic silicon at the rotating speed of 60r/min, and stirring for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 ℃, slowly adding 120kg of corn oil, 60kg of castor oil and 90kg of safflower seed oil, rotating at 300r/min after the adding is finished, and homogenizing and emulsifying for 40min to obtain a uniform and transparent mixture;

D. finally, adding 20050 kg of polyethylene oxide and 50kg of laurocapram in turn, and stirring the mixture until the mixture is transparent and uniform.

EXAMPLE seven

The embodiment provides a formula of an agricultural synergist, which comprises the following components:

110kg of isomeric alcohol ether, 70kg of polyoxyethylene sorbitan fatty acid ester, 70kg of sorbitan fatty acid, 200kg of polyether modified organic silicon, 120kg of alkynol modified organic silicon, 180kg of peanut oil, 120kg of safflower seed oil, 50kg of castor oil, 20050 kg of polyethylene oxide and 50kg of laurocapram.

A. Adding 110kg of fatty alcohol-polyoxyethylene ether, 70kg of polyoxyethylene sorbitan fatty acid ester, 70kg of sorbitan fatty acid and 200kg of polyether modified organic silicon into a stirring kettle, heating to 80 ℃, rotating at 100r/min, and stirring for 40min under the condition of heat preservation to obtain a uniform and transparent mixture;

B. cooling to 70 ℃, adding 120kg of alkynol modified organic silicon, stirring at the rotating speed of 60r/min for 30min to obtain a uniform and transparent mixture;

C. cooling to 40 ℃, slowly adding 180kg of peanut oil, 120kg of safflower seed oil and 50kg of castor oil, rotating at 300r/min after the adding is finished, and homogenizing and emulsifying for 40min to obtain a uniform and transparent mixture;

D. adding polyethylene oxide 20050 kg and laurocapram 50kg, and stirring to obtain transparent and uniform mixture.

The basic physical and chemical properties of the above embodiment are shown in table 1: preparing 1000 times of aqueous solution by using purified water, and testing the surface tension at 25 ℃ by adopting a lifting ring method; one drop (about 0.25ml) was then pipetted onto wheat leaves (critical surface tension of the leaves 36.9mN/m) and tested for wet spreading ability to compare the complete spreading effect, CK being clear water.

TABLE 1

	Surface tension mN/m	Complete spreading(s)
			Scheme one	21.6	9.2
Scheme two	23.3	11.0
			Scheme three	21.7	9.5
Scheme four	22.1	10.3
			Scheme five	23.6	11.1
Scheme six	22.1	9.8
			Scheme seven	23.8	11.6
CK	72.1	--

The result shows that the surface tension of each scheme is lower than the mean critical surface tension value of the plant by 30mN/m and lower than the stomata permeability value of the plant leaves by 25mN/m, and the synergistic effect of the scheme on the pest control can be ensured.

In order to further verify the effectiveness of each scheme, a representative prevention and control test of the plant diseases and insect pests is carried out, in the pesticide application process, an unmanned aerial vehicle is adopted for operation in the second scheme (the temperature is 28 ℃, the relative humidity of air is higher than 61%, and the wind speed is less than 3.2m/s), and common backpack electric sprayers are used as pesticide application tools in other schemes. The results are shown in Table 2.

TABLE 2

As can be seen from the table 2, the related scheme, whether added in the tank mix or the formula, can improve the control effect on the plant diseases and insect pests, and shows excellent synergistic effect with the basic effects of excellent quick action, obviously improved insecticidal rate, obviously shortened effective period and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.