Nano-cellulose-based anti-ultraviolet pesticide microcapsule and preparation method thereof

• Main Authors: JI PENGLIANG, ZHANG BO, KANEKO YASUSHI, REN TIANRUI, ZHANG NIANLEI, XIAO YANAN
• Format: Patent
• Language: Chinese; English
• Published: 28.04.2023
• 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 provides a nanocellulose-based anti-ultraviolet pesticide microcapsule and a preparation method thereof, and belongs to the technical field of pesticide microcapsules. Nano-cellulose, citric acid and cysteine are used as raw materials, under multiple dehydration reactions, citric acid and cysteine generate a high-fluorescence conjugated compound, and the high-fluorescence conjugated compound is combined with cellulose to form the fluorescent nano-cellulose containing citric acid/cysteine fluorophore. Fluorescent nanocellulose and a polyisocyanate compound are used as capsule wall raw materials, and a biopesticide is embedded in an emulsion through an emulsification effect; polyamine or polyol is used as a curing agent, in the curing reaction process, a polyisocyanate compound and polyamine or polyol are subjected to a cross-linking reaction and form a capsule wall with fluorescent cellulose, and citric acid/cysteine-based fluorophore is introduced into the capsule wall, so that the ultraviolet a