Hydrophobic pesticide preparation containing microcapsules and preparation method of hydrophobic pesticide preparation containing microcapsules

Abstract

The invention discloses a hydrophobic pesticide preparation containing microcapsules and a preparation method of the hydrophobic pesticide preparation containing the microcapsules. The type of the preparation is water emulsion and microcapsule suspending agent; the microcapsules contain core materials and wall materials; the core materials are active ingredients encapsulated in the microcapsules and are alternatively selected from the following substances: chlorpyrifos, malathion, pyraclostrobin and acetochlor, wherein the drug loading capacity is 10 to 30 percent counted by mass; the wall materials are biodegradable polymer materials and are alternatively selected from the following substances: polycaprolactone (PCL), poly lactide-glycolic acid (PLGA) copolymer and polylactic acid (PVA); active ingredients of the water emulsion are core materials which are not encapsulated in the microcapsules. According to the hydrophobic pesticide preparation disclosed by the invention, by adopting biodegradable environment-friendly polymer as the wall materials, hydrophobic pesticide is effectively coated, a significant sustained-release effect is realized, the utilization rate of pesticide is improved, the acting time of the pesticide is prolonged, the production cost is reduced, and the aims of reducing pesticide applying times and the pressure of a biological environment are achieved.

Description

technical field [0001] The invention belongs to the technical field of hydrophobic pesticide microcapsule embedding, and in particular relates to a hydrophobic pesticide preparation containing microcapsules and a preparation method thereof. Background technique [0002] In the process of agricultural production, it is necessary to prevent and control the pests and diseases of crops, and the application of chemical pesticides is still the main means of controlling pests and diseases of crops in the current agricultural production process. However, it is worth noting that there are two serious shortcomings in the current traditional pesticide formulations: ( 1) Due to the low effective utilization rate and low persistence of pesticides, repeated large-scale use will cause pesticide abuse and pose a serious threat to the ecological environment; (2) In the production process of commonly used dosage forms, organic excipients cause serious pollution to the environment. [0003] In...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to overcome the problems of low utilization rate of existing hydrophobic pesticide emulsifiable concentrate formulations and serious environmental pollution, and provide a hydrophobic pesticide preparation containing microcapsules with good stability and long-lasting effect and its preparation method