Pesticide adjuvant and preparation method thereof

A technology of pesticide adjuvant and alcohol ether, which is applied in the field of pesticide adjuvant to achieve the effects of improved water solubility and low freezing point

Inactive Publication Date: 2009-10-14
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve this goal, it is impossible to simply change the formula, process, raw materials or compounding. It is necessary to carry out innovative design from the whole system of raw material screening, synthetic formula, molecular structure design, process, etc. to solve the problem of traditional pesticide adjuvants. Weaknesses of the product

Method used

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  • Pesticide adjuvant and preparation method thereof
  • Pesticide adjuvant and preparation method thereof
  • Pesticide adjuvant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of embodiment 1 pesticide auxiliary agent

[0026] Powdered P 2 o 5 Under vigorous stirring, add alcohol ether RO(CH 2 CH 2 O) n In H (n=3-5), add 1mol of P for every 4mol of alcohol ether 2 o 5 When feeding, control the temperature of the reaction system not to exceed 40°C. After feeding, slowly increase the temperature to 65°C to 70°C for 5 hours. After the reaction system drops to room temperature, slowly add quantitative monoisopropanolamine (phosphorus pentoxide and The molar ratio of the amount of monoisopropanolamine is 1:4-6), and the reaction temperature is controlled at 40°C-45°C to carry out neutralization reaction for 1 hour to obtain the final product, numbered 06301.

Embodiment 2

[0027] The character detection of embodiment 2 pesticide adjuvants

[0028] Detect the pesticide adjuvant 06301 prepared in Example 1 of the present invention and the commercially available goods JFC and X-1005 according to the national standard (GB), and the various physicochemical data are shown in the following table:

[0029] Table 1. Pesticide adjuvant of the present invention compares with commercially available physical and chemical data

[0030]

Additive name

wettability

(Second)

Emulsifying

Inorganic

Biodegradability

water soluble

cloud point

JFC

15～25

none

single

generally

generally

none

X-1005

18～25

slightly

single

Difference

good

33℃

06301

12～20

obvious

have both

good

very good

≥85℃

[0031] Note: The wettability is based on GB (HG / T2575-1994), the pe...

Embodiment 3

[0034] Embodiment 3 application test

[0035] The following pesticide formulations were formulated using 06301 as an adjuvant:

[0036] 5% beta-cypermethrin emulsion in water, in which the 060301 additive content is 8% to 12% g / mL.

[0037] The preparation has been prepared by the Plant Protection Institute of the Chinese Academy of Agricultural Sciences and tested by bioassay, and has reached the national pesticide preparation standard and the efficacy level of similar foreign products.

[0038] As the control drug, 2.5% Kung Fu Water Emulsion (EW) produced by Syngenta (China) Investment Co., Ltd. was used, and the experimental pest was diamondback moth, which was collected from vegetable fields in Beijing.

[0039] Experimental result: the LC of the 5% beta-cypermethrin aqueous emulsion prepared by the present invention 50 The value was 33.27μg / mL, and that of the control drug was 33.43 μg / mL; the 95% confidence limit of 5% beta-cypermethrin aqueous emulsion was 21.04-52.6...

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Abstract

The invention discloses a pesticide adjuvant and a preparation method thereof. The pesticide adjuvant is obtained in such a way that after the alcohol ether RO(CH2CH2O)nH(n=3-5) of 8-10 carbon alcohol and P2O5 generate esterification reaction, monoisopropanolamine is added to carry out neutralization, and the pesticide adjuvant contains fatty alcohol ether phosphate monoester and diester ammonium salt. The pesticide adjuvant has the wettability and the penetrability of adjuvant products JFC and X-1005 sold in the market and has obvious improvement in aspects of emulsifying properties and water solubility and has a low freezing point. When the temperature is lower than or equal to 0 DEG C, the adjuvant is still transparent flowing liquid, and the emulsifying effect on mixed benzene in water is far better than that of a traditional adjuvant product; aiming at biodegradability, degradation can be promoted because of adding an ester group, a green pesticide adjuvant standard is achieved, and the pesticide adjuvant can be widely applied to various pesticide preparations.

Description

technical field [0001] The invention relates to a pesticide adjuvant, in particular to a surfactant-type pesticide adjuvant and a preparation method of the pesticide adjuvant. Background technique [0002] The "pesticide" that people often say actually refers to the pesticide preparation that is sold as a commodity and can be used directly. Pesticide preparations are composed of pesticide active ingredients and auxiliaries, among which the original pesticide is the functional active ingredient, and the pesticide adjuvant is the general term for various adjuvants other than the active ingredients used in the chemical pesticide processing formulation. Pesticide adjuvants are used in pesticide The proportion is often as high as 80%, mainly C, H or C, H, O compounds containing benzene rings. The adjuvant itself has no biological activity, but has a synergistic effect, which can improve the efficacy, reduce the amount of pesticides, save costs, and reduce the pollution of pestic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/30
Inventor 李正韩福宏
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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