Light-cured polyurethane acrylate microcapsule suspending agent and preparation method thereof

Abstract

The invention discloses a light-cured polyurethane acrylate microcapsule suspending agent and a preparation method thereof. The light-cured polyurethane acrylate microcapsule suspending agent comprises a capsule wall and a capsule core, wherein polyurethane acrylate is used as the capsule wall, acetamiprid pesticide is used as the capsule core, and the light-cured polyurethane acrylate microcapsule suspending agent is prepared through a UV LED light curing technology. According to the invention, through feeding of specific components, a capsule wall material polyurethane acrylate is subjected to a polymerization reaction under irradiation of UV LED light to form microcapsules and wrap a pesticide acetamiprid, and the prepared microcapsules are high in shell film wrapping rate and good in forming degree, can perfectly wrap the pesticide acetamiprid, and realize efficient utilization of acetamiprid.

Description

technical field [0001] The invention belongs to the field of pesticide microcapsule suspensions, in particular to a photocurable polyurethane acrylate microcapsule suspension and a preparation method thereof. Background technique [0002] Acetamiprid is a new type of insecticide, which belongs to nitromethylene heterocyclic compounds. It acts on the nicotinic acetylcholine receptors in the synaptic parts of the insect nervous system, interferes with the stimulation conduction of the insect nervous system, and causes the blockage of the nervous system pathway. , resulting in the accumulation of the neurotransmitter acetylcholine at synaptic sites, leading to paralysis and eventual death of the insect. It has contact killing and stomach poisoning effects, and at the same time has strong osmotic effect, good quick effect and long lasting effect. Acetamiprid can be used to control aphids, planthoppers, thrips and Lepidoptera and other pests in rice, vegetables, fruit trees and ...

AI Technical Summary

Problems solved by technology

However, acetamiprid is a white crystalline granule, which does not have the ability to control the release of active ingredients. It will inevitably be photolyzed, hydrolyzed, volatilized, lost, and microbially degraded in the target or surrounding environment, reducing its concentration below the effective concentration. , it is difficult to fully volatilize the efficacy of the drug

Therefore, the pesticide usually needs to be sprayed many times to maintain its effective control of harmful biological hazards, which not only increases the cost of agricultural production, but also directly causes a large amount of pesticide accumulation in the environment, posing a serious threat to human health and the ecological environment.

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