Environment-friendly spirodiclofen diester nano powder and preparation method thereof

An environmentally friendly, spirodiclofenac technology, applied in the field of pesticides, can solve the problems of poor quick-acting, narrow control surface, high cost, and achieve the effect of large surface area and high efficacy

Inactive Publication Date: 2019-05-17
NANJING SCIENX BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, spirodiester also has the problems of poor quick-acting (7-10 days after application), high cost, and narrow control area (only mites are effective).

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An environment-friendly spirodiclofen nano-powder, comprising active ingredient A, the active ingredient A is spirobudiglycol, 27wt% active ingredient, 12wt% solvent, 10wt% small molecule auxiliary agent, polymer auxiliary agent 5wt%, dispersant water 46wt%.

[0025] Wherein, solvent selects acetone for use.

[0026] Among them, the small molecule additives are selected from biodegradable small molecule additives, including anionic surfactants or nonionic surfactants, and ionic surfactants include carboxylate salts of linear alkyl groups with different carbon numbers. , Sulfonate, non-ionic surfactants include polyoxyethylene ethers of linear alkyl ethers, esters, and amides with different carbon numbers. The HLB value of small molecule additives is 12-15, and the dosage is 10%.

[0027] Among them, water-soluble polymer additives are selected as polymer additives, including natural water-soluble polymers and their derivatives, and natural water-soluble polymers and th...

Embodiment 2

[0035] An environment-friendly spirodiclofen nano-powder, comprising active ingredient A, the active ingredient A is spirobudiclofen, the mass fraction of the active ingredient is 9wt%, and also includes 21wt% of solvent, 25wt% of small molecule auxiliary agent, 14wt% polymer additives and 31wt% dispersant water.

[0036] Wherein, solvent selects cyclohexanone for use.

[0037] Among them, the small molecule additives are biodegradable small molecule additives, including anionic surfactants, and ionic surfactants include carboxylates, sulfonates, and sulfates of linear alkyl groups with different carbon numbers. , the HLB value of small molecule additives is 12-15, and the dosage is 25%.

[0038] Among them, the polymer additives are water-soluble polymer additives, including natural water-soluble polymers and their derivatives. Natural water-soluble polymers and their derivatives include carboxymethyl chitosan, modified guar gum, tea soap white.

[0039] The preparation me...

Embodiment 3

[0046] An environment-friendly spirodiclofen nano-powder, including active ingredient A, the active ingredient A is spirobudiester, the active ingredient accounts for 10wt%, and also includes 18wt% of solvent, 20wt% of small molecule auxiliary agent, polymer auxiliary agent Agent 12wt% and dispersant water 40wt%.

[0047] Wherein, the solvent is selected from acetone and cyclohexanone mixed according to the volume ratio of 1:1.

[0048] Among them, the small molecule additives are biodegradable small molecule additives, including non-ionic surfactants, which include polyoxyethylene polyoxyethylenes composed of straight-chain alkyl ethers, esters, and amides with different carbon numbers. Ether, the HLB value of the small molecule additive is 12-15, and the dosage is 10-25%.

[0049]Among them, the polymer additives are water-soluble polymer additives, including synthetic polymers, and the synthetic polymers are selected from polyvinyl alcohol, sodium polyacrylate, polyacrylam...

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PUM

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Abstract

The invention belongs to the technical field of pesticides, and particular discloses environment-friendly spirodiclofen diester nano powder. The environment-friendly spirodiclofen diester nano powderis prepared from the components in percentage by weight: active ingredient A, 12-21% of a solvent, 10-25% of a small molecule addition agent, less than 5-14% of a macromolecule addition agent and 31-46% of dispersant water, wherein the active ingredient A is spirodiclofen diester. After adopting the formula and process, the prepared spirodiclofen diester nano powder is of a nanometer grade, more pesticide particles and a larger surface area are achieved with the same quality of pesticides, the contact area with a target is wider, the pesticide effect is higher, and the spirodiclofen diester nano powder can be used for aviation plant protection special agents, does not produce sediment and does not block a nozzle; and the environment-friendly addition agents are selected, high-toxic solvents and addition agents are not selected and used, more efficiency, environmental protection and safety are achieved, the previous state with high efficiency and low toxicity as the first choice is changed, and it is required that environmental safety of the agents is used as a primary condition.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to an environment-friendly spirodiclofen diester nanopowder and a preparation method thereof. Background technique [0002] Spirodiclofen is a non-systemic acaricide. It mainly controls eggs, nymphs and female adults through contact and stomach poisoning. Its mechanism of action is to inhibit fat synthesis in the body of harmful mites and block energy metabolism. It has no cross-resistance with conventional acaricides; it has outstanding egg killing effect, and has good control effect on harmful mites (except male adult mites) at different developmental stages, and can be safely used in the control of fruit trees, vegetables and flowers . However, spirobidiester also has the problems of poor quick-acting effect (7-10 days after application), high cost, and narrow control area (only mites are effective). [0003] Chinese invention patent application CN 103783043 A discloses a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/06A01N25/12A01P7/02
Inventor 张子勇梁冰
Owner NANJING SCIENX BIOTECH CO LTD
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