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Floating microcapsule carrier under friendly environment and its production

An environmentally friendly and floating technology, applied in the field of chemical production, can solve the problems of poor degradability and high cost, and achieve the effect of lasting control effect, fast control effect, and consolidating control effect.

Inactive Publication Date: 2007-09-05
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is found that a considerable part of the walls of traditional microcapsules use artificially synthesized polymer materials, which are costly and poorly degradable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: Application of floating microcapsule carrier for inhibiting removal of water hyacinth

[0044] Water hyacinth is a worldwide harmful aquatic weed with strong reproductive ability. It leads to the blockage of waterways, the decline in the output and quality of aquatic products, the destruction of biodiversity in water bodies, and the pollution of water bodies and many other negative effects. 41% Bioforce water solution, glyphosate, gramoxone, 36% glyphosate·chlorosulfur soluble powder, etc. all have very good inhibitory effects on the growth of water hyacinth. The microcapsule preparation process described in this example is as follows:

[0045] In this example, a three-layer microencapsulation coating method is adopted, and the floating module is located at the core of the microcapsule. The active ingredient is 36% glyphosate·chlorosulfur soluble powder, gelatin is used as the coating material, sodium alginate is mixed with foaming agent and low-density mat...

Embodiment 2

[0050] Embodiment 2: Application of floating microcapsule carrier for rice field herbicide

[0051] Bensulfuron-methyl is a selective, systemic sulfonylurea herbicide with high efficiency in paddy fields. After application, the active ingredient diffuses rapidly in the water and is absorbed by the roots of the weeds and transferred to the various parts of the weeds. By inhibiting the acetylation in the plant The activity of lactate synthase hinders the biosynthesis of valine, leucine and isoleucine, eventually leading to weed death. The rice itself can degrade the active ingredients of the drug in the body, so it is safe for rice. It has excellent control effect on most broadleaf weeds and sedge weeds. But it is less effective against barnyard grass.

[0052] Benfenacet is a selective systemic conduction type pre-emergence and post-emergence herbicide. It is mainly absorbed through the bud sheaths and roots, and is transmitted to the young shoots and young leaves of weeds t...

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PUM

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Abstract

An environment friendly floating microcapsule used as the carrier of agricultural chemical, fertilizer, etc is composed of a core containing wall, floating material and / or cellular body and active components chosen from agricultural chemical, functional bacteria, fertilizer and pollutant treating reagent, and one or more layers of coating film.

Description

technical field [0001] The invention relates to an environment-friendly microcapsule carrier with floating characteristics and application thereof, belonging to the field of chemical production. Background technique [0002] my country is the most populous country in the world, and it is particularly important to ensure national food security, environmental security, and people's health. my country is a traditional agricultural country with serious agricultural pest disasters, and it is also a country with prominent environmental problems. There are many varieties of chemical herbicides, wide control spectrum, and fast control effect. They have played an important role in controlling pest hazards, protecting agricultural production safety, and alleviating the contradiction between population and food production. However, with the development of science and technology and the enhancement of people's awareness of environmental protection, the side effects of traditional chemi...

Claims

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Application Information

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IPC IPC(8): A01N25/08B01J13/02C12N11/04C02F3/00C05F11/08
Inventor 王贤明吴跃进余增亮
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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