Method for efficiently preparing porous geopolymer by using vegetable oil

A geopolymer and geopolymer technology, applied in applications, ceramic products, household appliances, etc., can solve the problems of uneven pore size distribution of porous geopolymers, difficult to control pore structure, and reduce foaming strength, etc. Effects of slurry viscosity and stability, reduced foam strength, and high mechanical properties

Active Publication Date:
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for efficiently preparing porous polymers from vegetable oils to improve slurry viscosity and stability, reduce foaming strength, maintain pore structure, simplify the preparation process, improve efficiency, be easy to industrialize, and can prepare uniform Porous geopolymer material with complete, uniform pore size distribution and controllable porosity, which solves the problems of uneven pore size distribution, low strength and difficult control of pore structure of porous geopolymers prepared by traditional methods

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
  • Method for efficiently preparing porous geopolymer by using vegetable oil
  • Method for efficiently preparing porous geopolymer by using vegetable oil
  • Method for efficiently preparing porous geopolymer by using vegetable oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare 7-10mol / L potassium hydroxide solution, wherein the mechanical stirrer speed is controlled at 200-500 rpm, and stand for 24 hours.

[0035] Mix the obtained potassium hydroxide solution with potassium water glass mechanically and uniformly, wherein the speed of the mechanical stirrer is controlled at 200-500 rpm, and stand for 24-48 hours. Obtain a potassium base activator, wherein the mass ratio of potassium hydroxide to potassium water glass is about 9:15.

[0036] Add metakaolin to the potassium-based base stimulator, and continue to stir mechanically for 20-50 minutes, wherein the rotational speed of the mechanical stirrer is about 300-600 rpm to obtain geopolymer slurry. The mass ratio of metakaolin and alkali activator is about 15:24.

[0037] Add 1-5% olive oil relative to the mass fraction of the geopolymer slurry, continue mechanical stirring for about 2-7 minutes, and the rotational speed of the mechanical stirrer is 800-1000 rpm.

[0038] Then add 2...

Embodiment 2

[0044] Prepare 10-15mol / L potassium hydroxide solution, wherein the mechanical stirrer speed is controlled at 200-500 rpm, and stand for 24 hours.

[0045] The obtained potassium hydroxide solution is mechanically mixed with potassium water glass (potassium silicate solution), wherein the mechanical stirrer speed is controlled at 300-500 revolutions per minute, and left to stand for 24 hours to obtain a potassium-based alkali stimulator, wherein the hydroxide The mass ratio of potassium to potassium water glass is about 1:1.

[0046] Add the fly ash to the potassium base activator, and continue to stir mechanically for 20-50 minutes, wherein the speed of the mechanical stirrer is about 200-500 rpm to obtain geopolymer slurry containing fly ash. The mass ratio of fly ash and alkali activator is about 15:34.

[0047] Add metakaolin to the geopolymer slurry containing fly ash, and continue to stir mechanically for 10-50 minutes, wherein the speed of the mechanical agitator is ab...

Embodiment 3

[0055] Prepare 6-15mol / L sodium hydroxide solution, wherein the mechanical stirrer speed is controlled at 300 rpm, and stand for 24 hours.

[0056] Mechanically uniformly mix the prepared sodium hydroxide solution with sodium water glass, wherein the speed of the mechanical stirrer is controlled at 300-500 rpm, and leave it to stand for 24 hours to obtain a sodium base activator, wherein the quality of sodium hydroxide and sodium water glass The ratio is about 16:23.

[0057] Add metakaolin to the sodium base activator, and continue mechanical stirring for 20-50 minutes, wherein the speed of the mechanical stirrer is about 600 rpm to obtain the sodium base polymer slurry. The mass ratio of metakaolin and sodium base activator is about 15:24.

[0058] Add 1-5% soybean oil relative to the geopolymer slurry, continue mechanical stirring for about 2-7 minutes, and the rotational speed of the mechanical stirrer is 800-1000 rpm.

[0059] Then add 2-20% hydrogen peroxide relative 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

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
porosityaaaaaaaaaa
porosityaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of manufacturing novel porous inorganic non-metallic materials new materials, in particular to a method for efficiently preparing porous geopolymer by using vegetable oil. At first, alkali activator is prepared; and then a homogeneously mixed geopolymer slurry/pulp is prepared by using the alkali activator; and then a foamed slurry is prepared by usingthe geopolymer slurry/pulp; finally, the foamed slurry is put into a mold for curing, and the final product is obtained after demoulding treatment. The porous geopolymer which is uniform and completeand controllable in porosity is prepared, the vegetable oil is used as the novel foam stabilizer, so as to not only effectively reduce the cost of preparation of the porous geopolymer, but also the method can be used as a method for efficiently utilizing the vegetable oil.

Description

technical field [0001] The invention relates to the technical field of manufacturing porous new inorganic non-metallic materials, in particular to a method for efficiently preparing porous geopolymers by using vegetable oil. Porous geopolymers can be used in filtration and adsorption, thermal insulation materials and other fields. Background technique [0002] As a new type of green cement material, geopolymer has broad application prospects in new building materials, high-strength materials, solid-core solid waste materials, sealing materials, and high-temperature and corrosion-resistant materials. [0003] The research on geopolymer materials began in the 1970s, and at almost the same time, researchers at home and abroad carried out research and exploration on porous geopolymers. Porous polymer materials are used in filter materials, new inorganic membrane materials and membrane supports, adsorption materials (heavy metal cations, CO 2 etc.), low-cost heat-resistant stru...

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): C04B28/00C04B38/02
CPCY02P40/10
Inventor 白成英李欣羽乔英杰王晓东张晓红乔锋张丽丽
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