Geopolymer foam composition

Patent metadata

Field	Value
Publication number	US-12240785-B2
Application number	US-201917312541-A
Country	US
Kind code	B2
Filing date	Dec 9, 2019
Priority date	Dec 10, 2018
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A geopolymer foam composition, an article comprising a geopolymer foam composition, methods for making a geopolymer foam composition, and uses of a geopolymer foam composition.

First claim

The invention claimed is:

1. A geopolymer foam composition comprising a mechanically-foamed aluminosilicate geopolymer and a chemically-foamed aluminosilicate geopolymer, wherein the geopolymer foam composition comprises at least one layer of a mechanically-foamed aluminosilicate geopolymer and/or at least one layer of a chemically-foamed aluminosilicate geopolymer.

2. The geopolymer foam composition of claim 1 , wherein the geopolymer foam composition comprises a blend of a mechanically-foamed aluminosilicate geopolymer and a chemically-foamed aluminosilicate geopolymer.

3. The geopolymer foam composition of claim 1 , wherein the geopolymer foam composition has a compression resistance equal to or greater than about 0.01 MPa.

4. The geopolymer foam composition of claim 1 , wherein the geopolymer foam composition has a thermal conductivity equal to or less than about 300 mw·m −1 ·K −1 .

5. The geopolymer foam composition of claim 1 , wherein the geopolymer foam composition is a call A fire-resistant material.

6. The geopolymer foam composition of claim 1 , wherein the mechanically-foamed geopolymer and/or the chemically-foamed geopolymer further comprises one or more fillers.

7. The geopolymer foam composition of claim 1 , wherein the mechanically-foamed geopolymer has an average pore size ranging from about 1 μm to about 500 μm or wherein the chemically-foamed geopolymer has an average pore size ranging from greater than about 500 μm to about 5000 μm.

8. An article comprising the geopolymer foam composition of claim 1 .

9. The article of claim 8 , wherein the article is thermal insulation, sound insulation, or a fire retardant material.

10. The article of claim 8 , wherein the article is a filter.

11. The article of claim 9 , wherein the article is a filter or device for the conduction, exchange, and/or capture of chemical elements.

12. A method for making a geopolymer foam composition, the method comprising combining a mechanically-foamed aluminosilicate geopolymer and a chemically-foamed aluminosilicate geopolymer, and wherein the method comprises forming at least one layer of the mechanically-foamed aluminosilicate geopolymer and/or at least one layer of the chemically-foamed aluminosilicate geopolymer.

13. The method of claim 12 , wherein the method further comprises blending the mechanically-foamed aluminosilicate geopolymer and the chemically-foamed aluminosilicate geopolymer.

14. The method of claim 12 , wherein the method comprises making the mechanically-foamed aluminosilicate geopolymer and/or making the chemically-foamed aluminosilicate geopolymer.

15. A geopolymer foam composition obtained by the method of claim 12 .

Assignees

• Imertech Sas
• Centre Nat Rech Scient
• Univ Limoges

Inventors

• Perronnet Murielle
• Arnoult Marie
• Rossignol Sylvie

Classifications

• C04B2201/50

  for the mechanical strength · CPC title

• C04B2201/32

  for the thermal conductivity, e.g. K-factors · CPC title

• C04B2111/40

  Porous or lightweight materials · CPC title

• C04B2111/28

  Fire resistance, i.e. materials resistant to accidental fires or high temperatures · CPC title

• C04B2103/42

  Pore formers · CPC title