Agricultural spray auxiliary agent

A technology for spraying additives and polyether modified silicone oil, applied in the agricultural field, can solve the problems of large dynamic surface tension and low dynamic surface tension of additives, and achieve the advantages of improving spray utilization, low dynamic surface tension and reducing surface tension. Effect

Active Publication Date: 2018-07-24
江西迈格威新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of the large dynamic surface tension of the additives in the prior art, to provide an agricultural spray additive with a small dynamic surface tension, and to apply it directly in the agricultural field or in conjunction with other products agricultural field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An agricultural spray adjuvant, which is a mixture, its components and their contents are as follows, and the contents are in parts by mass:

[0034] Polyether modified silicone oil A 1 part

[0035] Polyether modified silicone oil B 2 parts

[0036] Polyether modified silicone oil A has the same general structural formula as polyether modified silicone oil B, as shown in formula I, wherein R 7 As shown in formula II, in polyether modified silicone oil A, x is 0, y is 1, a is 3, b is 6.5 and R 8 is -H, in polyether modified silicone oil B, x is 0, y is 1, a is 10.5, b is 22.5 and R 8 for -H.

[0037] At 25°C, the static surface tension of an aqueous solution of 0.1% agricultural spray adjuvant is 21.68mN / m, and the aqueous solution of 0.1% polyether-modified silicone oil A has a static surface tension of 21.47mN / m The static surface tension of the aqueous solution of polyether-modified silicone oil B with a mass concentration of 0.1% is 26.45mN / m, and the absolute v...

Embodiment 2

[0039] An agricultural spray adjuvant, which is a mixture, its components and their contents are as follows, and the contents are in parts by mass:

[0040] Polyether modified silicone oil A 1 part

[0041] Polyether modified silicone oil B 3 parts

[0042] Polyether modified silicone oil A has the same general structural formula as polyether modified silicone oil B, as shown in formula I, wherein R 7 As shown in formula II, in polyether modified silicone oil A, x is 0, y is 1, a is 8, b is 0 and R 8 is -H, in polyether modified silicone oil B, x is 0, y is 1, a is 15, b is 0 and R 8 for -H.

[0043] At 25°C, the static surface tension of an aqueous solution of 0.1% agricultural spray auxiliaries with a mass concentration of 0.1% is 20.6mN / m, and the static surface tension of an aqueous solution of 0.1% polyether-modified silicone oil A is 20.7mN / m The static surface tension of the aqueous solution of polyether modified silicone oil B with a mass concentration of 0.1% is 2...

Embodiment 3

[0045] An agricultural spray adjuvant, which is a mixture, its components and their contents are as follows, and the contents are in parts by mass:

[0046] Polyether modified silicone oil A 1 part

[0047] Polyether modified silicone oil B 1 part

[0048] Polyether modified silicone oil A has the same general structural formula as polyether modified silicone oil B, as shown in formula I, wherein R 7 As shown in formula II, in polyether modified silicone oil A, x is 100, y is 0, a is 0, b is 100 and R 8 for -CH 2 CH 2 CH 2 OH, in polyether modified silicone oil B, x is 50, y is 100, a is 100, b is 50 and R 8 for -CH 3 .

[0049] At 25°C, the static surface tension of an aqueous solution of 0.1% agricultural spray auxiliaries with a mass concentration of 0.1% is 21.4mN / m, and the aqueous solution of polyether modified silicone oil A with a mass concentration of 0.1% has a static surface tension of 21.5mN / m. The static surface tension of the aqueous solution of polyether...

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Abstract

The invention relates to an agricultural spray auxiliary agent. The agricultural spray auxiliary agent is a mixture of polyether modified silicone oil with different structures; the absolute value ofdifference value of static surface tension of a mixture and a component with the smallest static surface tension in the mixture is less than the absolute value of difference value of the static surface tension of the other components in the mixture; the dynamic surface tension of the mixture is smaller than the dynamic surface tension of each component in the mixture; a structural general formulaof the polyether modified silicone oil is (CH3)3Si[OSi(CH3)2]x[OSi(CH3)R7]yOSi(CH3)3, wherein x is 0 to 100, y is 0 to 100, R7 is -CH2CH2CH2(OC2H4)a(OC3H6)bOR8, R8 is -H, -CH2CH2CH2OH or monovalent hydrocarbonyl and a or b is 0 to 100. The auxiliary agent provided by the invention is convenient to use, simple to prepare and small in surface tension and has extremely good popularization value.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to an agricultural spray adjuvant. Background technique [0002] Agricultural spray adjuvant, also known as tank mixing adjuvant, is a kind of adjuvant product that is added together with pesticide products in the liquid medicine barrel when pesticides are used. It reduces the surface tension of the liquid medicine and increases the mist Droplet adhesion and deposition, improve wetting and spreading performance, dissolve or penetrate the waxy layer on the surface of insects or plant leaves, promote the absorption and conduction of pesticides, and improve the biological activity or application effect of pesticides. important support. At present, spray adjuvants are an important branch in the field of agricultural adjuvants, and their research and application are very active. [0003] Agricultural spray adjuvants are mainly surfactants, which are mainly divided into four categ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/30A01N25/06
CPCA01N25/06A01N25/30
Inventor 郑全
Owner 江西迈格威新材料有限公司
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