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Spirodiclofen suspending agent and preparation method thereof

A technology of spirodiclofen and suspending agent, which is applied in the field of spirodiclofen suspending agent and its preparation, can solve the problems such as particle size growth, achieve stable control effect and solve the effect of suspension rate drop

Active Publication Date: 2019-08-23
SINO AGRI LEADING BIOSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of spirodiclofen suspending agent and its preparation method, solve the problem of particle size growth in the heat storage test process, obtain higher suspension rate, thereby realize the stability of the product and good control effect

Method used

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  • Spirodiclofen suspending agent and preparation method thereof
  • Spirodiclofen suspending agent and preparation method thereof
  • Spirodiclofen suspending agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Embodiment 1, 1% spirodiclofen suspending agent

[0071] Spirodifen technical (active ingredient) 1%

[0072] Soprohpor FD (sulfate ester dispersant) 1%

[0073] Pluronic PE 10500 (block polyether wetting agent) 0.5%

[0074] Sag 1522 (polysiloxane defoamer) 0.1%

[0075] Xanthan gum (thickener) 0.3%

[0076] Magnesium Aluminum Silicate 0.3%

[0077] Kathon (preservative) 0.3%

[0078] Ethylene glycol (antifreeze) 10%

[0079] Deionized water makes up 100%.

[0080] According to the formula in Example 1, take the original drug of spirodiclofen and other materials, and use a small vertical sand mill in the laboratory to grind materials other than preservatives and thickeners to a particle size of D 50 The thickness is about 3 μm, and then the pre-prepared thickener containing preservatives is added to the grinding base and stirred evenly to obtain the spirodiclofen suspension.

[0081] The test is carried out according to the following methods: 1. The mass fraction...

Embodiment 2

[0086] Embodiment 2, 5% spirodiclofen suspending agent

[0087] Spirodifen technical (active ingredient) 5%

[0088] Polystep B21 (sulfate ester dispersant) 2%

[0089] Dowfax D-800 (block polyether wetting agent) 0.8%

[0090] Sag 1522 (polysiloxane defoamer) 0.2%

[0091] Xanthan gum (thickener) 0.2%

[0092] Magnesium Aluminum Silicate 0.2%

[0093] Kathon (preservative) 0.2%

[0094] Propylene glycol (antifreeze) 8%

[0095] Deionized water makes up 100%;

[0096] According to the formula in Example 2, take the original drug of spirodiclofen and other materials, and use a small vertical sand mill in the laboratory to grind materials other than preservatives and thickeners to a particle size of D 50 The thickness is about 3 μm, and then the pre-prepared thickener containing preservatives is added to the grinding base and stirred evenly to obtain the spirodiclofen suspension.

[0097] The test is carried out according to the following methods: 1. The mass fraction of...

Embodiment 3、10

[0102] Embodiment 3, 10% spirodiclofen suspending agent

[0103] Spirodifen technical (active ingredient) 10%

[0104] sipon PD (sulfate ester dispersant) 3%

[0105] Emulsogen EP 4901 (block polyether wetting agent) 1%

[0106] Sag 1522 (polysiloxane defoamer) 0.2%

[0107] Xanthan gum (thickener) 0.18%

[0108] Magnesium Aluminum Silicate 0.18%

[0109] 1,2-Benzisothiazolin-3-one (preservative) 0.18%

[0110] Urea (antifreeze) 5%

[0111] Deionized water makes up 100%;

[0112] According to the formula in Example 3, take the original drug of spirodiclofen and other materials, and use a small vertical sand mill in the laboratory to grind materials other than preservatives and thickeners to a particle size of D 50 The thickness is about 3 μm, and then the pre-prepared thickener containing preservatives is added to the grinding base and stirred evenly to obtain the spirodiclofen suspension.

[0113] The test is carried out according to the following methods: 1. The mass...

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Abstract

The invention relates to a spirodiclofen suspending agent and a preparation method thereof. The spirodiclofen suspending agent has excellent control effects on red spider mites, yellow spider, phyllocoptruta oleivora, polyphagotarsonemus latus, tetranychus cinnabarinus, two-spotted spider mites and the like, and can be applied to mite control of fruit trees such as citrus, grapes and the like andsolanaceae crops such as eggplants, pepper, tomatoes and the like. Active ingredients of the suspending agent comprise 1-24% of spirodiclofen, and further comprise agriculturally acceptable dispersingagents, wetting agents, antifoaming agents, thickening agents, preservatives, anti-freezing agents, deionized water and the like according to a weight ratio. The preparation is prepared as a suspending agent to use. By adding sulfate and block polyether surfactant combinations, the problem that a particle size of the spirodiclofen suspending agent grows in a storage process is solved, physicochemical property stabilization of the preparation is facilitated, and after long-term storage, the preparation still has an excellent control effect.

Description

technical field [0001] The invention belongs to the technical field of insecticides, and in particular relates to a spirodiclofen suspension and a preparation method thereof. Background technique [0002] Spirodiclofen is the first spirotetronic acid acaricide developed and developed by Bayer, which was discovered and developed by Bayer on the basis of screening herbicides. In recent years, the sales of spirodiclofen have increased year by year, and it is the highest-selling variety among acaricides. Spirodiclofen is a growth inhibitor with contact action and no systemic activity. Slower action compared to fast knockdown acaricides; faster action compared to chitinous insect regulator class acaricides. However, spirodiclofen has a longer duration of action and can be used in conjunction with quick-acting acaricides. Spirodiclofen has a completely different mechanism of action from existing acaricides, and has no cross-resistance with other acaricides, so it has broad appl...

Claims

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Application Information

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IPC IPC(8): A01N43/12A01N25/04A01P7/02
CPCA01N25/04A01N43/12
Inventor 郭勇飞张小军张凯
Owner SINO AGRI LEADING BIOSCI
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