Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nano pesticide preparation based on boron nitride nanosheet grafted hydrophilic macromolecules and preparation method thereof

A technology of hydrophilic polymers and nano-pesticides, which is applied in the field of nano-pesticide preparations and preparations based on boron nitride nanosheets grafted with hydrophilic polymers, can solve problems that have not yet been seen, and achieve obvious pH-responsive controlled release characteristics, Promotes wettability and leaf surface adhesion, strong load-carrying effect

Active Publication Date: 2020-07-14
ZHONGKAI UNIV OF AGRI & ENG
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no relevant report on chemically modifying boron nitride as a nano-pesticide carrier

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nano pesticide preparation based on boron nitride nanosheet grafted hydrophilic macromolecules and preparation method thereof
  • Nano pesticide preparation based on boron nitride nanosheet grafted hydrophilic macromolecules and preparation method thereof
  • Nano pesticide preparation based on boron nitride nanosheet grafted hydrophilic macromolecules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment is an embodiment of the preparation method of nano-pesticide preparation based on boron nitride nanosheets grafted with hydrophilic polymers according to the present invention. The preparation method comprises the following steps:

[0038] (1) Preparation of BNNP: Disperse h-BN powder in hydrochloric acid with a pH value of 3 for activation. After activation for 24 hours, centrifuge and wash with deionized water several times, and dry at 85°C for 24 hours after suction filtration to obtain activated BNNP. h-BN powder, and then disperse the activated h-BN powder in isopropanol, ultrasonicate at room temperature for 6h to carry out liquid phase stripping on the dispersion, and then centrifuge at 4000rpm for 90min to remove large particles of h-BN, to obtain The supernatant mainly composed of several thin layers of hexagonal boron nitride nanosheets, the supernatant was washed several times with ethanol and then filtered, the solid was collected and dried at...

Embodiment 2

[0042] This example is an example of the preparation method of nano-pesticide preparations based on boron nitride nanosheets grafted with hydrophilic polymers according to the present invention, except that the hydrothermal reaction temperature in step (2) is 110°C, Others are all the same as in Example 1.

Embodiment 3

[0044] This embodiment is a kind of embodiment of the preparation method of the nano-pesticide preparation based on boron nitride nanosheets grafted hydrophilic macromolecule of the present invention, the mass ratio of BNNP, PEG, MPTMS and water in this method except step (2) is BNNP: PEG: MPTMS: water = 1:2:0.5:4, the temperature of the hydrothermal reaction is 80° C., and the time of the hydrothermal reaction is 12 hours. Others are the same as in Example 1.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a nano pesticide preparation based on boron nitride nanosheet grafted hydrophilic macromolecules and a preparation method thereof, and belongs to the technical field of nano pesticide preparations. Biocompatible hydrophilic macromolecules and mercaptosilane are grafted to the surface of the hexagonal boron nitride nanosheet through condensation and Michael addition reaction;the interaction between the raw materials promotes the hexagonal boron nitride powder to form rich orderly arranged thin-layer-shaped nano channels, and the nano-pesticide carrier has a nano-constraint effect on hydrophobic pesticide loading and delivery. Besides, through the synergistic combination of hydrophobic-hydrophobic interaction, [pi]-[pi] accumulation and electrostatic interaction, theelectrostatic interaction is enhanced; the nano pesticide carrier has higher drug loading capacity and remarkable pH response controlled release behavior, improves the wetting and affinity of pesticide leaf surfaces, has the capability of effectively shielding ultraviolet radiation, and can be used as an environment-friendly and stable water-based nano pesticide carrier.

Description

technical field [0001] The invention belongs to the technical field of nano-pesticide preparations, and relates to a nano-pesticide preparation based on boron nitride nanosheets grafted with hydrophilic polymers and a preparation method thereof. Background technique [0002] A large number of pesticides used in pest control are likely to cause pesticide residues and seriously pollute the ecological environment. The limitations of traditional chemical pesticides are mainly due to their instability and the widespread use of organic solvents for dispersion in the actual spraying process. Therefore, there is an urgent need for a more environmentally friendly water-based pesticide controlled-release drug delivery system. The vigorous development of precision agriculture also requires that pesticide molecules can reach plants and be targeted and transported in a more controllable manner. [0003] Utilizing environmentally friendly nanomaterials and customizing "nanotransmission ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01N25/10A01N25/22
CPCA01N25/10A01N25/22
Inventor 郝丽周新华周红军关梅龚丽红
Owner ZHONGKAI UNIV OF AGRI & ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com