Triazolone wettable powder capable of improving heat storage suspension rate and stability, and production method

Abstract

The invention discloses a triazolone wettable powder capable of improving heat storage suspension rate and stability, and a production method thereof. The triazolone wettable powder comprises the following components in parts by weight: 5 parts of triazolone, 0.1-0.5 part of wetting agent, 0.1-2 parts of dispersing agent A, 0.1-2 parts of dispersing agent B, and 0.1-4 parts of adsorbent; the dispersing agent A is selected from at least one of polyoxyethylene ether, polyoxyethylene ether phosphate, EO / PO block copolymer surfactants; the dispersing agent B is selected from lignosulfonate, alkyl naphthalene sulfonate, alkyl naphthalene sulfonate formaldehyde condensates and polycarboxylate, trials proved that both the effective suspension rate and mass suspension rate at normal temperature can achieve more than 90%, and the effective suspension rate and the heat storage suspension rate under the heat storage condition are close to 90%; compared with the prior art, the wettable powder in the technical scheme is less reduced in suspension rate, the mass suspension rate and effective suspension rate are consistent, and the heat storage suspension rate stability is high.

Description

technical field [0001] The invention relates to the field of pesticide preparations and production thereof, in particular to a triadimefon wettable powder and a production method for improving the heat storage suspension rate and stability. Background technique [0002] Triadimefon is also known as Fenxioning and Beston, its chemical name is 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)-2 - butanone, a broad-spectrum triazole fungicide with high efficiency, low toxicity, low residue, long duration and strong systemicity developed by German Beyer company in the early 1970s, when it is used by plants After each part is absorbed, it can conduct in the plant body. Triadimefon has an excellent control effect on wheat powdery mildew, rust, smut, corn head smut, round spot, etc. It is effective against wheat take-all, moire, root rot, melons, fruit trees Powdery mildew in plants, vegetables, flowers, etc. has a high control effect. [0003] According to the characte...

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Problems solved by technology

If the suspension rate is too low, the pesticide particles will quickly settle at the bottom of the sprayer, and the local concentration will be too high, resulting in uneven application concentration in the field, affecting the control effect, and even causing phytotoxicity

[0005] At present, there are many problems with the suspension rate of triadimefon wettable powder: first, the FAO standard requires that the suspension rate test of wettable powder be carried out after the thermal storage stability test, while many enterprises only measure the suspension rate of the product at room temperature, and as a quality indicator

[0006] However, the ubiquitous problem of commercially available 15% and 25% triadimefon wettable powders is that the suspension rate is significantly reduced after thermal storage. From the extensive sampling inspection of the market, although the effective suspension rate can reach about 80%, the thermal storage After storage, the suspension rate drops very seriously, and the suspension rate will be 20-50% lower than before thermal storage, especially if the storage time is long in poor conditions, high temperature and high humidity, it may even drop by more than 50%. Suspension rate drops much more seriously, resulting in serious unqualified thermal storage stability of the product

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