Method for preparing controlled photodegradable nano avermectins microcapsules

A technology of abamectin and photodegradation, applied in the directions of botanical equipment and methods, chemicals for biological control, animal repellents, etc., to achieve good application prospects, mild reaction conditions, and good reproducibility.
CN101869112AInactive Publication Date: 2010-10-27迟德富 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
迟德富
Publication Date
2010-10-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing controlled photodegradable nano avermectins microcapsules, which is characterized by (1) re-separating out the raw pesticide in the form of crystals and adjusting the particle size by a probe-type ultrasonic method or a vibration method, (2) using avermectins as the template particles, using two biocompatible macromolecules with opposite charges as the wall materials and forming an extremely thin protective outer film on the surface of imidacloprid, thus obtaining the avermectins microcapsules, and (3) using W and Ag+ to adjust the photodegradable activity of TiO2. An appropriate nano photocatalyst is selected according to the actual demand to prepare the photodegradable nano imidacloprid. The method is simple in process, mild in reaction conditions, easy in operation and good in repeatability, provides material base and technical support for developing the efficient green pesticides and has good application prospect.
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Description

technical field

[0001] The invention belongs to the field of novel pesticide preparations, and in particular relates to a method for preparing controllable photodegradable nano-abamectin microcapsules. Background technique

[0002] At present, chemical pesticides are effective drugs developed by humans to eliminate pests and diseases. Since the use of chemical pesticides, human beings have felt the benefits of chemical pesticides to human beings, such as increasing crop production, preventing and controlling human infectious diseases. According to the survey data of the Food and Agriculture Organization of the United Nations, the grains that are taken away by diseases and insect pests account for 20% of the global harvest every year. %-30%, thus, the economic loss caused reaches 120 billion U.S. dollars. In order to deal with pests and diseases, more than 2 million tons of various chemical pesticides will be produced every year, and its sales volume is as high as 10 billion ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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