Preparation method of water-soluble varnish compounded with Ag-carrying chitosan
A water-based varnish and chitosan technology, used in biocide-containing paints, polyester coatings, antifouling/underwater coatings, etc., can solve the problems of fast drying speed, low sterilization broad spectrum, small fineness, etc. , to achieve the effect of enhanced bactericidal effect, strong bactericidal broad-spectrum and excellent dispersibility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0040] A kind of preparation method of the water-based varnish compounded with silver-loaded chitosan is carried out as follows, wherein the following material parts are parts by weight,
[0041] (1) Preparation of silver-loaded chitosan:
[0042] Take 10 parts of nano-chitosan and add it to 100 parts of deionized water and stir until dissolved, then add 10 parts of silver nitrate to the chitosan solution, stir evenly, add dilute nitric acid aqueous solution dropwise until the pH of the solution is 3-4, Then stir and heat in a water bath at 60°C for 3 hours under the condition of avoiding light, then centrifuge the suspension successively, wash the solid matter and dry it in vacuum, take 10 parts of the above solid matter and 0.5 part of sodium borohydride and add them to 0.01mol / L Add deionized water to the aqueous sodium hydroxide solution to adjust the pH to 7.5-8, and finally stir and centrifuge to collect the solid, wash and dry to obtain the silver-loaded chitosan.
[0...
Embodiment 2
[0057] A kind of preparation method of the water-based varnish compounded with silver-loaded chitosan is carried out as follows, wherein the following material parts are parts by weight,
[0058] (1) Preparation of silver-loaded chitosan:
[0059] Take 10 parts of nano-chitosan and add it to 100 parts of deionized water and stir until dissolved, then add 10 parts of silver nitrate to the chitosan solution, stir evenly, add dilute nitric acid aqueous solution dropwise until the pH of the solution is 3-4, Then stir and heat in a water bath at 60°C for 3 hours under the condition of avoiding light, then centrifuge the suspension successively, wash the solid matter and dry it in vacuum, take 10 parts of the above solid matter and 0.5 part of sodium borohydride and add them to 0.01mol / L Add deionized water to the aqueous sodium hydroxide solution to adjust the pH to 7.5-8, and finally stir and centrifuge to collect the solid, wash and dry to obtain the silver-loaded chitosan.
[0...
Embodiment 3
[0076] A kind of preparation method of the water-based varnish compounded with silver-loaded chitosan is carried out as follows, wherein the following material parts are parts by weight,
[0077] (1) Preparation of silver-loaded chitosan:
[0078] Take 10 parts of nano-chitosan and add it to 100 parts of deionized water and stir until dissolved, then add 10 parts of silver nitrate to the chitosan solution, stir evenly, add dilute nitric acid aqueous solution dropwise until the pH of the solution is 3-4, Then stir and heat in a water bath at 60°C for 3 hours under the condition of avoiding light, then centrifuge the suspension successively, wash the solid matter and dry it in vacuum, take 10 parts of the above solid matter and 0.5 part of sodium borohydride and add them to 0.01mol / L Add deionized water to the aqueous sodium hydroxide solution to adjust the pH to 7.5-8, and finally stir and centrifuge to collect the solid, wash and dry to obtain the silver-loaded chitosan.
[0...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More