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Composite dispersant for pesticide suspension concentrate

A compound dispersant and suspending agent technology, applied in the field of pesticide adjuvants and pesticide dispersants, can solve the problems affecting the performance of active ingredients of pesticides, suspension rate drop, particle size increase, etc., and achieve excellent dispersibility and cold and hot storage stability , good suspension rate, cold and hot storage stability qualified effect

Active Publication Date: 2016-02-03
ZHEJIANG HISUN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the same formulation, different types of dispersants or wetting agents will obviously affect the performance of the active ingredients of the pesticide.
[0005] The layer and the bottom are serious, and the particles become larger, so that the suspension rate decreases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 135

[0027] Embodiment 135% imidacloprid aqueous suspension concentrate

[0028] The following components are composed in weight percent:

[0029] Imidacloprid technical 35%; composite dispersant 6% (naphthalenesulfonate formaldehyde condensate NN0: alkylphenol polyoxyethylene ether phosphate TX-10 phosphate = 1:2); wetting agent sodium lauryl sulfate 2%; antifreeze ethylene glycol 5%; preservative sodium benzoate 0.5%; magnesium aluminum silicate 0.5%; xanthan gum 0.2%, tap water to make up;

[0030] Put the active ingredients of pesticides, compound dispersant, wetting agent, preservative, thickener magnesium aluminum silicate and water into the sand mill, and grind. When the particle size D90 is 5 μm, stop grinding, add antifreeze and stir again. Add thickener xanthan gum to adjust the viscosity, that is.

[0031] The appearance of the product is viscous liquid, the content of main indicators of the product is qualified, pH=7.3; the long-lasting foaming property is ≤25ml; the ...

Embodiment 235

[0032] Embodiment 235% imidacloprid aqueous suspension concentrate

[0033] The following components are composed in weight percent:

[0034] Imidacloprid technical 35%; composite dispersant 6% (naphthalenesulfonate formaldehyde condensate NN0: alkylphenol polyoxyethylene ether phosphate TX-10 phosphate = 1:1); wetting agent sodium lauryl sulfate 2%; antifreeze ethylene glycol 5%; preservative sodium benzoate 0.5%; magnesium aluminum silicate 0.5%; xanthan gum 0.2%, tap water to make up;

[0035] Put the active ingredients of pesticides, compound dispersant, wetting agent, preservative, thickener magnesium aluminum silicate and water into the sand mill, and grind. When the particle size D90 is 5 μm, stop grinding, add antifreeze and stir again. Add thickener xanthan gum to adjust the viscosity, that is.

[0036] The appearance of the product is viscous liquid, the content of main indicators of the product is qualified, pH=7.3; the long-lasting foaming property is ≤25ml; the ...

Embodiment 335

[0037] Embodiment 335% imidacloprid aqueous suspension concentrate

[0038] The following components are composed in weight percent:

[0039] Imidacloprid technical 35%; composite dispersant 6% (naphthalene sulfonate formaldehyde condensate NN0: alkylphenol polyoxyethylene ether phosphate TX-10 phosphate = 1:2); wetting agent octadecyl sulfonate Sodium succinate 2%; antifreeze agent ethylene glycol 5%; preservative GXL 0.5%; magnesium aluminum silicate 0.5%; xanthan gum 0.2%, tap water to make up;

[0040] Put the active ingredients of pesticides, compound dispersant, wetting agent, preservative, thickener magnesium aluminum silicate and water into the sand mill, and grind. When the particle size D90 is 5 μm, stop grinding, add antifreeze and stir again. Add thickener xanthan gum to adjust the viscosity, that is.

[0041] The appearance of the product is viscous liquid, the content of main indicators of the product is qualified, pH=7.5; the long-lasting foaming property is ≤...

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PUM

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Abstract

The invention relates to a composite dispersant for a pesticide suspension concentrate. The composite dispersant consists of a naphthyl sulfonate formaldehyde condensate and alkylphenol ethoxylates phosphate of which the weight ratio is 1:(1-2). Preferably, the composite dispersant is applied to preparation of an imidacloprid suspension concentrate. The screened specific composite dispersant shows excellent effects, and the suspension concentrate further prepared from the composite dispersant has better suspensibility and dispersity and is qualified in cold and heat storage stability; compared with an individual dispersant, the composite dispersant has a relatively remarkable synergistic interaction effect; when adopted to prepare the imidacloprid suspension concentrate, the composite dispersant has excellent compatibility with the active ingredient (imidacloprid), and the prepared imidacloprid suspension concentrate is very superior in suspensibility, dispersity and cold and heat storage stability.

Description

technical field [0001] The invention relates to the field of pesticide adjuvants, in particular to a composite dispersant for pesticide suspensions. The invention further relates to the use of the pesticide composite dispersant in preparing pesticide suspensions, which belongs to the field of pesticide dispersants. Background technique [0002] Imidacloprid is a nitromethylene-type systemic insecticide, which acts on the nicotinic acid acetylcholinesterase receptor. It interferes with the motor nervous system of pests and causes chemical signal transmission to fail. There is no cross-resistance problem. Used to control piercing-sucking mouthparts pests and their resistant strains. Imidacloprid is a new generation of chlorinated nicotine insecticide. It has broad-spectrum, high efficiency, low toxicity and low residue. It is not easy for pests to develop resistance. It is safe for humans, animals, plants and natural enemies. It has contact, stomach and systemic toxicity. Mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/30A01N25/04A01N51/00A01P7/04
Inventor 王丽敏蒋冰蒋涛李初李杰
Owner ZHEJIANG HISUN CHEM
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