Preparation method of water-soluble antibacterial quaternized chitosan/Ag nano composite microspheres
A technology of quaternized chitosan and nano-composite, which is applied in the field of preparation of water-soluble antibacterial quaternized chitosan/Ag nanocomposite microspheres, which can solve the problems that limit the wide application of Ag nanoparticles and the easy aggregation of Ag nanoparticles , Insufficient to meet the antibacterial needs and other issues, to achieve excellent structural stability and antibacterial performance, good water dispersibility, and improve the effect of bonding fastness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0035] 2.5 g of nanoparticles (an average size of 18 nm) were added to a mixed solvent of 250 g of water and 250 g of ethylene glycol, and the ultrasonic treatment was administered at 300 W for 20 min, and Ag nanoparticle dispersion was produced, followed by The temperature was adjusted to 30 Oc, adding 3.85 mg of 2-aminethic alcohol solution, reaction 2 h, prepared surface amino-modified Ag nanoparticles, and the product was purified, and the dry was processed. The amino-modified Ag nanoparticles were again dispersed in deionized water, and at the power of 300 W, the ultrasonic treatment was obtained from 20 min to obtain an amino-modified Ag nanoparticle water dispersion.
[0036] The 0.0125 G emulsifier P (E / B) -PEO was sung, dissolved in 12.5 G isometylene alkane (ISOPAR M, Exxon Mobil) to give an emulsifier solution. 0.3 g of quaternized chitosan and 5 mg NaBF4 were dissolved in the Ag nanoparticle water dispersion of 2 g (where the amino-modified Ag nanoparticle content wa...
Embodiment 2
[0041] 0.5 g of nanoparticles (an average size of 15 nm) were added to 250 g of water and 250 g of ethylene glycol, and 10 min was tested at 450 W, and the Ag nanoparticle dispersion was obtained, and then the temperature was adjusted to 30 OC, an ethylene glycol solution containing 1 mg of 2-aminolpropionic acid is added, and the reaction 12 h, the obtained surface amino-modified Ag nanoparticles is added, and the product is purified, and after drying. The amino-modified Ag nanoparticles were again dispersed in deionized water, and at the power of 450 W, the ultrasonic treatment was obtained from the amino-modified Ag nanoparticle water dispersion.
[0042] 1.5 G emulsifier Tween 80 and 1.5 G Sp pan-80, dissolved in 30 g of toluene to give an emulsifier solution. 0.42 g of quaternized chitosan and 8.3 mg NaBF4 were dissolved in 2.5 g of purified Ag nanoparticle water dispersion (where the amino-modified Ag nanoparticle content was 15 mg), the resulting dispersion was added to the...
Embodiment 3
[0047] 0.75 g of nanoparticles (an average size of 20 nm) were added to 250 g of water and 250 g of dimethyl sulfoxide, and 10 min was tested at power of 500 W, and the Ag nanoparticle dispersion was produced, and the temperature was subsequently To 30 OC, a dimethyl sulfoxide solution containing 1.5 mg 2-aminoethiciol was added, and 10 h was added, and the surface amino-modified Ag nanoparticles were added, and the product was purified, and after drying. The amino-modified Ag nanoparticles were again dispersed in deionized water, and at the power of 500 W, the ultrasonic treatment was obtained from the amino-modified Ag nanoparticle water dispersion.
[0048]It is weighed 0.255 G emulsifier P (E / B) -PEO, dissolved in 25.5 g of n-hexadecane to obtain an emulsifier solution. 0.37 g of quaternized chitosan and 8.0 mg Na2SO4 were dissolved in 2.0 g of purified Ag nanoparticle water dispersion (where the amino-modified Ag nanoparticle content was 15 mg), the resulting dispersion was...
PUM
Property | Measurement | Unit |
---|---|---|
size | aaaaa | aaaaa |
size | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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