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

Preparation method of antibacterial and anti-thermal radiation aerogel

A technology of anti-thermal radiation and airgel, which is applied in the direction of ceramic products, applications, household appliances, etc., can solve the problems of easy breeding of bacteria, limit the application range of airgel materials in the field of heat insulation, and affect the service life, so as to achieve enhanced Anti-infrared heat radiation performance, good hydrodynamic performance, reasonable process design effect

Inactive Publication Date: 2018-05-29
马斌祥
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, when the airgel insulation material is used in thermal pipelines, chemical industry, metallurgy, shipbuilding and other fields, the use environment is complicated, and it is easy to breed bacteria and have peculiar smell, which affects the service life
Therefore, the aerogels prepared by the existing methods all have the disadvantages of weak thermal radiation resistance, poor thermal insulation performance, and poor antibacterial performance when used at higher temperatures, which greatly limits the application of airgel materials in the field of thermal insulation. Application range

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 of antibacterial and anti-thermal radiation aerogel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of an antibacterial and anti-heat radiation airgel, comprising the following steps:

[0027] (1) Sol preparation: take 120g of sodium silicate and 1200g of ethanol to prepare sodium silicate solution; slowly add 6wt% hydrochloric acid solution to the sodium silicate solution to make the pH of the system reach 6.2, then add 96g of titanyl sulfate, and stir evenly at room temperature get sol;

[0028] (2) Preparation of mixed solution sol: add 169g of nano-titanium dioxide airgel micropowder to the sol, and use ultrasonic vibration for 30min to obtain mixed solution sol;

[0029] (3) Aging: inject the mixed liquid sol into the mold under vacuum, pre-aging at 56°C for 45 minutes, and then aging at room temperature for 23 hours to obtain a gel;

[0030] (4) Hydrothermal: Heat the gel water bath to 110°C and keep it warm until the titanium compound in the gel decomposes into metatitanic acid;

[0031] (5) Solution replacement: pump a mixture of acetone...

Embodiment 2

[0034] A preparation method of an antibacterial and anti-heat radiation airgel, comprising the following steps:

[0035] (1) Sol preparation: take 120g of sodium silicate and 850g of ethanol to prepare sodium silicate solution; slowly add 5wt% hydrochloric acid solution to the sodium silicate solution to make the pH of the system reach 6.5, then add 120g of titanyl sulfate, and stir evenly at room temperature get sol;

[0036] (2) Preparation of mixed solution sol: add an infrared radiation blocking agent with a sol mass of 258 g to the sol, and use ultrasonic vibration for 40 minutes to obtain a mixed solution sol;

[0037] (3) Aging: inject the mixed liquid sol into the mold under vacuum, pre-aging at 60°C for 40 minutes, and then aging at room temperature for 24 hours to obtain a gel;

[0038] (4) Hydrothermal: Heat the gel water bath to 115°C and keep it warm until the titanium compound in the gel decomposes into metatitanic acid;

[0039] (5) Solution replacement: pump ...

Embodiment 3

[0042] A preparation method of an antibacterial and anti-heat radiation airgel, comprising the following steps:

[0043](1) Sol preparation: take 120g of sodium silicate and 980g of ethanol to prepare sodium silicate solution; slowly add 5wt% hydrochloric acid solution to the sodium silicate solution to make the pH of the system reach 6.5, then add 83g of titanyl sulfate, and stir evenly at room temperature get sol;

[0044] (2) Preparation of the mixed solution sol: add 105 g of nano-silica airgel micropowder to the sol, and use ultrasonic vibration for 26 minutes to obtain the mixed solution sol;

[0045] (3) Aging: inject the mixed liquid sol into the mold under vacuum, pre-aging at 60°C for 42 minutes, and then aging at room temperature for 23 hours to obtain a gel;

[0046] (4) Hydrothermal: Heat the gel water bath to 106°C and keep it warm until the titanium compound in the gel decomposes into metatitanic acid;

[0047] (5) Solution replacement: pump the mixture of n-h...

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 discloses a preparation method of antibacterial and anti-thermal radiation aerogel, and relates to the technical field of thermal insulation materials. The preparation method of the aerogel comprises the following steps of sol preparation, wherein a silicon-containing solution is prepared with sodium silicate as the raw material and ethanol as a solvent, a hydrochloric acid solutionis added to enable the pH value to be 6.2-6.5, and then titanyl sulfate is added and uniformly stirred at normal temperature to obtain sol; preparation of mixed solution sol, wherein an infrared radiation blocking agent is added into the sol, and ultrasonic vibration is conducted; aging, wherein the mixed solution sol is injected into a mould under the vacuum state, pre-aged and placed at normal temperature for ageing; water heating; solution replacement; drying, wherein a supercritical fluid is used for drying. The aerogel prepared through the method is high in porosity, small in pore size, good in antibacterial property, low in heat conductivity and capable of saving energy and isolating heat.

Description

Technical field: [0001] The invention relates to the technical field of heat insulation materials, in particular to a preparation method of an antibacterial and heat radiation-resistant airgel. Background technique: [0002] Airgel heat insulation material is a new type of heat insulation material, and its heat insulation effect can reach more than 7 times that of conventional heat insulation materials, so it is called super heat insulation material. Airgel insulation materials are widely used in thermal pipelines, chemical industry, metallurgy, industrial kilns, shipbuilding and other civilian fields, which can greatly save energy. The development of this technology is of great significance for upgrading the industrial level and building a green economy. [0003] Heat transfer is realized through three ways: heat conduction, convection, and heat radiation. At higher temperatures (above 150°C), heat radiation gradually becomes the main way of heat transfer. Although the aer...

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): C04B38/00C04B30/00C04B24/42C04B103/67C04B111/20
CPCC04B30/00C04B38/0045C04B40/0039C04B2103/67C04B2111/20C04B2201/20C04B2201/32C04B38/0067C04B24/00C04B24/383C04B24/085C04B24/42C04B22/10C04B22/002C04B14/064C04B14/302C04B14/305C04B24/008C04B24/045
Inventor 马斌祥
Owner 马斌祥
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