Preparation method of pesticide-loaded gel with environmental response controlled release

• Main Authors: CHEN HAO, WAN CHUANBAO, XU ZONGQI, FANG JIANXIANG, FENG XIAOHAI
• Format: Patent
• Language: Chinese; English
• Published: 23.01.2024
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

The invention discloses a preparation method of pesticide-loaded gel with environmental response controlled release, the gel is mainly prepared from gamma-polyglutamic acid and carboxymethyl cellulose, the gel is formed under the chelation of carboxyl and metal ions, and a proper amount of bentonite is added into the gel to further enhance the adsorption capacity, so that the gel is prepared. The influence on the persistence of the pesticide due to too fast gel degradation is avoided. The gel is endowed with environmental responsiveness by utilizing the configuration and conformation changes of polyamino acid and polysaccharide high polymer materials in different environments, so that the release rate of the pesticide in the gel can change along with the change of pH and temperature, the light instability of the pesticide can be effectively relieved, and the stability of the pesticide is improved. Therefore, the gel carrier prepared by the invention has a very wide application prospect and potential social an