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

Silver-containing inorganic antibacterial agent

An inorganic antibacterial agent and antibacterial agent technology, which is applied in the field of antibacterial agents, can solve the problems of easy discoloration and difficulty in crushing of powder, and achieve the effects of excellent water resistance, high water resistance and excellent processability

Active Publication Date: 2020-04-17
安徽正合雅聚新材料科技有限公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the glass-loaded silver antibacterial agent is obtained by quenching after melting and then pulverizing, it is difficult to pulverize it to within 3 microns, and the finer the pulverized particle size, the easier it is for the powder to change color.

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
  • Silver-containing inorganic antibacterial agent
  • Silver-containing inorganic antibacterial agent
  • Silver-containing inorganic antibacterial agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Add 0.05 moles of magnesium hydroxide with a particle size of 1 micron, 0.0039 moles of zinc chloride with a particle size of 15 microns, 0.0039 moles of ammonium chloride with a particle size of 15 microns, and 0.0059 moles of Sodium chloride, grind and mix evenly, add 5 drops of polyethylene glycol 400 to continue grinding, then add 0.041 mole of phosphoric acid successively, continue grinding.

[0081] It can be found that the mixture slowly thickens from wet, then becomes pasty and fine, and then starts to harden and become moist.

[0082] Put the above-mentioned wet block mixture into a ball mill for ball milling, control the temperature in the ball mill tank at 50 degrees Celsius, take it out after 6 hours, carefully wash the obtained product, and dry it at 110 degrees Celsius, thus synthesizing the sodium ion and ammonium ion of magnesium phosphate compounds.

[0083] The amount of each component of this compound is measured, and the result composition formula i...

Embodiment 2

[0090] A support material composed of the following composition formula obtained in Example 1 was used.

[0091] Na0.3(NH4)0.2Mg2.55Zn0.2(PO4)2·0.09H2O

[0092] 70 ml of an aqueous solution of deionized water in which 0.0084 moles of silver nitrate was dissolved was added to the carrier material, and stirred at room temperature for 2 hours to complete the loading of silver ions. The silver-loaded slurry was filtered and washed until the conductivity of the filtrate was 360 μS, and the solid content was dried at 110° C. to adjust the volume specific gravity to 1.12 g / ml.

[0093] By measuring the amount of each component of the dry solid component, the composition formula obtained is as follows:

[0094] Ag0.3Na0.11H0.09Mg2.5Zn0.25(PO4)2 0.13H2O

[0095]Furthermore, the silver-containing inorganic antibacterial agent of the present invention was obtained after being processed in a high-temperature furnace at 900° C. for 10 hours, cooled naturally, and pulverized.

Embodiment 3

[0097] In the mortar, add 0.06 moles of magnesium sulfate heptahydrate with a particle diameter of 15 microns, 0.00046 moles of zinc chloride with a particle diameter of 15 microns, and 0.0083 moles of ammonium chloride with a particle diameter of 15 microns to grind and mix evenly. Continue to grind with ethylene glycol 400, then add 0.046 moles of disodium hydrogen phosphate dodecahydrate one after another, continue to grind, and continue to drop ammonia water to control the pH value to 5.2.

[0098] The mixture was found to be a very thin paste.

[0099] Put the above-mentioned pasty mixture into a ball mill for ball milling, control the temperature in the ball mill tank at 70 degrees Celsius, take it out after 6 hours, carefully wash the resulting product, and dry it at 110 degrees Celsius, thus synthesizing the compound containing sodium ions and ammonium ions Magnesium phosphate compound.

[0100] The amount of each component of this compound is measured, and the result...

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
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a silver-containing inorganic antibacterial agent with excellent transparency. The silver-containing inorganic antibacterial agent with excellent transparency is a silver-containing inorganic antibacterial agent which contains magnesium pyrophosphate and is represented by a formula AgaMbMgcRd(PO4)2.NH2O, wherein M is at least one selected from alkali metal ions, ammonium ions, hydrogen ions and oxonium ions, R is a metal ion having a valence of 2, a, b, c, d and n are 3 or less, a and c are positive numbers, 2.5 < (c + d) < 3 and a + b + 2(c + d) = 6. The silver-containing inorganic antibacterial agent disclosed by the invention has the characteristics of excellent heat resistance, discoloration resistance, washing resistance and processability when being applied tohigh polymer materials, and particularly can be applied to transparent products.

Description

technical field [0001] The invention relates to the field of antibacterial agents, in particular to a silver-containing inorganic antibacterial agent with excellent transparency, a preparation method thereof, and an antibacterial product. Background technique [0002] The preparation of silver-containing antibacterial agents generally uses natural inorganic minerals or synthetic compounds with adsorption properties as carriers. In the liquid phase system, silver ions are loaded in the carrier by ion exchange or adsorption, and then cured at high temperature. way made. The adsorption properties of natural inorganic minerals are often unsatisfactory, resulting in a small amount of adsorbable silver ions and poor binding force. The result is low antibacterial efficiency and poor antibacterial water resistance. Applied to some relatively low-end polymer material products. Some artificially synthesized inorganic carriers, silicate carriers, such as zeolite, have higher adsorpti...

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): A01N59/26A01N59/16A01P1/00C08L23/12C08L77/00C08L67/02C08K3/32
CPCA01N59/16A01N59/26C08K3/32C08L23/12C08L77/00C08L67/02
Inventor 赵正坤
Owner 安徽正合雅聚新材料科技有限公司
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