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

Liquid silver-oxidized graphene complex and preparation method and application thereof

A graphene and stone oxide technology is applied in the field of preparation of graphene oxide/silver/modified titanium dioxide composites, which can solve problems such as reducing the antibacterial properties of materials, and achieve the effects of high antibacterial properties and prolonging release time.

Inactive Publication Date: 2014-06-18
JINHU JINLING NEW MATERIAL SCI & TECH
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing antibacterial materials, silver ions are easy to quickly enter the ion state from the chemically bound state and leave the composite material system, thereby reducing the antibacterial performance of the material.

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
  • Liquid silver-oxidized graphene complex and preparation method and application thereof
  • Liquid silver-oxidized graphene complex and preparation method and application thereof
  • Liquid silver-oxidized graphene complex and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Using flake graphite as raw material, prepare graphene oxide by Hummer method: first weigh 0.5g flake graphite, 0.25g KNO 3 , placed in a 500mL three-neck flask, add 12mL concentrated H 2 SO 4 , and magnetically stirred for 30 min in an ice-bath environment. Then slowly add 1.5g KMnO 4 , stirred at 35°C for 24h, then slowly added 150mLH 2 O, stirred for 12h. Then move the three-necked flask into an oil bath, and react at 98°C for 24h. After cooling to room temperature, wash with suction, wash with HCl first, then wash with H 2 O was washed to neutral to prepare graphene oxide.

[0022] (1) Using the graphene oxide prepared above, prepare 10 mL of a graphene oxide suspension with a concentration of 2.5 mg / mL and ultrasonically obtain a clear graphene oxide hydrosol, then add KOH solid at a final concentration of 0.10 g / mL and in React in a water bath environment at 60°C for 2.5 hours, then add concentrated hydrochloric acid (37% solute mass fraction) to adjust the...

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

PropertyMeasurementUnit
densityaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of preparation of antibacterial materials and in particular relates to a preparation method and application of an oxidized graphene / silver / modified titanium dioxide complex. The preparation method comprises the following steps: by taking crystalline flake graphite as a raw material, preparing oxidized graphene by a Hummer method, and preparing an oxidized graphene solution; and mixing the solution with nanometer titania on the surface of which polyacrylate is grafted and a silver salt, boiling the mixture, and performing ultrafiltration tube elution, thus obtaining the composite slow release antibacterial material. The antibacterial material and a thermoplastic resin can be subjected to blending extrusion and film blowing to prepare plastic with a long-lasting continuous high-efficiency antibacterial effect.

Description

technical field [0001] The invention belongs to the field of preparation of antibacterial materials, in particular to a preparation method and application of a graphene oxide / silver / modified titanium dioxide composite. Background technique [0002] There are many kinds of microorganisms, including prokaryotic microorganisms (such as bacteria), eukaryotic microorganisms (such as fungi, algae and protozoa) and cell-free organisms (such as viruses). They are small in size but closely related to human life, production and survival. Involving health, food, medicine, industry and agriculture, environmental protection and many other fields. Among them, the infection of pathogenic microorganisms, especially bacteria, has brought great harm to the breeding industry and human health, and caused huge economic losses. Therefore, the research and practical application of antibacterial aspects have always been widely concerned. Antimicrobial agents in the traditional sense include antib...

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): A01N59/16A01P1/00C08F292/00C08L23/06C08K9/04C08K9/02C08K3/22C08K3/04C08K3/08C09C1/36C09C3/10
Inventor 赵晓燕纪俊玲金长春唐鹏飞汪媛
Owner JINHU JINLING NEW MATERIAL SCI & TECH
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