Preparation method and application of silver-loaded viscose fiber

A technology of viscose fiber and viscose fiber, applied in the field of materials, to achieve the effect of firm adsorption, simple experimental process, and uniform particle size

Active Publication Date: 2019-02-01
JIANGSU UNIV OF TECH
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Viscose fiber has similar properties to most natural fibers, and has excellent biocompatibility and adsorption, so its surface is often adhered by a large number of microorganisms. conditions, thus limiting its application

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
  • Preparation method and application of silver-loaded viscose fiber
  • Preparation method and application of silver-loaded viscose fiber
  • Preparation method and application of silver-loaded viscose fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: viscose fiber preparation

[0021] (1) Pretreatment of viscose fiber: Ultrasonic immersion of viscose fiber in deionized water for 20-30min, then wrung out the viscose fiber and ultrasonic immersion in ethanol solution for 30min in the same way, and then Dry at 100°C for use.

[0022] (2) Preparation of nano-silver sol: at a reaction temperature of 20° C. and a stirring speed of 400 r / min, 1 mL of sodium borohydride solution with a concentration of 10 mM, 3 mL of chitosan solution of 2.5 mM, and 1.25 mM 10 mL of silver nitrate solution was stirred at high speed for 20 min to prepare seed crystals. Then take 2mL of the prepared seed crystal, 10mL of deionized water, 30mL of silver nitrate solution, and 0.5mL of ascorbic acid with a concentration of 10mM to prepare nano-silver sol.

[0023] (3) Preparation of silver-loaded viscose fiber: Viscose fiber and nano-silver sol are taken according to the ratio of mass volume ratio of 1g:40mL to get each raw mater...

Embodiment 2

[0024] Embodiment 2: viscose fiber preparation

[0025] (1) Pretreatment of viscose fiber: ultrasonically immerse the viscose fiber in deionized water for 30 minutes, then wring out the viscose fiber and use the same method to ultrasonically immerse in ethanol solution for 30 minutes, then wring out the viscose fiber at 100 ° C. Dry under favorable conditions for use.

[0026] (2) Preparation of nano-silver sol: at a reaction temperature of 20°C and a stirring speed of 400r / min, 1 mL of sodium borohydride solution with a concentration of 14 mM, 3 mL of chitosan solution of 2.5 mM, 1.25 mM 10 mL of silver nitrate solution was stirred at high speed for 20 min to prepare seed crystals. Then take 2mL of the prepared seed crystal, 10mL of deionized water, 30mL of silver nitrate solution, and 0.05mL of ascorbic acid with a concentration of 10mM to prepare nano-silver sol.

[0027] (3) Preparation of silver-loaded viscose fiber: Viscose fiber and nano-silver sol are taken according...

Embodiment 3

[0028] Embodiment 3: viscose fiber preparation

[0029] (1) Pretreatment of viscose fiber: ultrasonically immerse the viscose fiber in deionized water for 30 minutes, then wring out the viscose fiber and use the same method to ultrasonically immerse in ethanol solution for 30 minutes, then wring out the viscose fiber at 100 ° C. Dry under favorable conditions for use.

[0030] (2) Preparation of nano-silver sol: at a reaction temperature of 20° C. and a stirring speed of 400 r / min, 1 mL of sodium borohydride solution with a concentration of 10 mM, 3 mL of chitosan solution of 2.5 mM, and 1.25 mM 10 mL of silver nitrate solution was stirred at high speed for 20 min to prepare seed crystals. Then get prepared seed crystal 2mL, deionized water 10mL, silver nitrate solution 30mL, concentration is the ascorbic acid 0.5mL reaction preparation nano-silver sol of 10mM;

[0031] (3) Preparation of silver-loaded viscose fiber: Viscose fiber and nano-silver sol are taken according to t...

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 preparation method of silver-loaded viscose fiber with antibacterial performances; the preparation method of the silver-loaded viscose fiber comprises three steps: (1) pre-treating viscose fiber, namely soaking viscose fiber in deionized water and carrying out ultrasonic washing on the viscose fiber for 30 minutes, performing ultrasonic immersion washing on the viscose fiber for 20-30 minutes in an ethanol solution after wring out, and drying; (2) preparing a nano-silver sol, namely taking a prepared crystal seed, deionized water, a silver nitrate solution and ascorbicacid with the concentration of 4-12 mM for reaction to prepare the nano-silver sol; and (3) preparing the silver-loaded viscose fiber, namely, soaking the viscose fiber in the prepared nano-silver sol in a mass (g)-volume (mL) ratio of 1: (20: 80) for 4-7 days, taking the viscose fiber out and drying the viscose fiber, and drying the sample in a vacuum drying oven at the temperature of 100 DEG Cto obtain the viscose fiber with the antibacterial performances.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a preparation method of silver-loaded viscose fiber and an application material thereof. Background technique [0002] Viscose fiber is a cellulose fiber obtained by extracting cellulose from natural cellulose-rich raw materials such as cotton linters and plant straw, and then chemically processing it. Viscose fiber has similar properties to most natural fibers, and has excellent biocompatibility and adsorption, so its surface is often adhered by a large number of microorganisms. conditions, thus limiting its application. Metallic silver has excellent antibacterial properties, and its antibacterial properties will be greatly improved when the silver particles are in nanometer size. Contents of the invention [0003] The invention provides a method for preparing silver-loaded viscose fibers. The method comprises the following steps: (1) pretreatment of viscose fibers: imme...

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
Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83A61L15/28A61L15/18A61L15/44A61L15/46D06M101/06
CPCA61L15/18A61L15/28A61L15/44A61L15/46A61L2300/104A61L2300/404A61L2300/624D06M11/83D06M16/00D06M2101/06C08L1/24
Inventor 朱云峰冯浪管超杨菁菁朱圣清
Owner JIANGSU UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap