IP Library › Granted Patent US 11,234,298
Granted Patent B2
US 11,234,298 · App. 16/192,235 · Granted Jan 25, 2022

Hybrid nanoreinforced liner for microwave oven

Inventors: Muhammad Khizar (St. Joseph, MI); Ermanno Buzzi (Varese, IT)
Assignee: Whirlpool Corporation
H05B6/6411B29C70/025B29C70/882B29K2105/162B29K2105/167B29K2307/04B29K2505/02B29K2509/02B29K2995/0005B29L2031/779
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Quick Facts
Patent No.
US 11,234,298
App. No.
16/192,235
Granted
Jan 25, 2022
Kind
B2
Abstract

A liner for a crisp plate includes ceramic nanoparticles and a polymer material combined with the ceramic nanoparticles to provide a mixture. A network of carbon nanotubes is embedded within the mixture to form a composite matrix, wherein the carbon nanotubes are unidirectionally aligned within the composite matrix.

Claims (32)

1. A crisp plate, comprising:

a plate;

a liner disposed on a surface of the plate, wherein the liner includes:

a network of carbon nanotubes combined with aluminum nanoparticles and ceramic alumina; and

a polymer configured to form a matrix, wherein the network of carbon nanotubes is embedded within the matrix, and further wherein the carbon nanotubes are unidirectionally aligned within the matrix.

2. The crisp plate of claim 1 , wherein the carbon nanotubes are multi-walled carbon nanotubes.

3. The crisp plate of claim 1 , wherein the carbon nanotubes are single-walled carbon nanotubes.

4. The crisp plate of claim 1 , wherein the carbon nanotubes are double-walled carbon nanotubes.

5. The crisp plate of claim 1 , wherein the carbon nanotubes are few-walled carbon nanotubes.

6. The crisp plate of claim 1 , wherein the carbon nanotubes are ultra-short carbon nanotubes.

7. The crisp plate of claim 1 , wherein the polymer includes a two-part based pre-polymerized polymer.

8. The crisp plate of claim 1 , wherein the liner includes 1.5% by weight of the polymer.

9. The crisp plate of claim 8 , wherein the liner includes 15% by weight of the ceramic alumina.

10. A liner for a crisp plate, comprising:

aluminum nanoparticles;

ceramic nanoparticles;

a polymer material combined with the ceramic nanoparticles to provide a mixture; and

a network of carbon nanotubes combined with the aluminum nanoparticles and embedded within the mixture to form a composite matrix, wherein the carbon nanotubes are unidirectionally aligned within the composite matrix.

11. The liner of claim 10 , wherein the mixture includes 1.5% by weight of the polymer material, and further includes 15% by weight of the ceramic nanoparticles.

12. The liner of claim 10 , wherein the liner heats up to 200° C. within two minutes or less when exposed to microwaves.

13. The liner of claim 10 , wherein the liner includes an upper heat limit of 250° C. when exposed to microwaves.

14. The liner of claim 10 , wherein the carbon nanotubes are selected from the group consisting of single-wall carbon nanotubes, double-wall carbon nanotubes, few-wall carbon nanotubes, multi-wall carbon nanotubes, ultra-short carbon nanotubes, and combinations thereof.

15. A method of forming a liner for a crisp plate, comprising:

providing a polymer matrix;

embedding a network of unidirectionally aligned carbon nanotubes within the polymer matrix to provide a composite matrix; and

providing aluminum nanoparticles and ceramic alumina to the composite matrix to form a nanoreinforced liner.

16. The method of claim 15 , wherein the polymer matrix includes a two-part pre-polymerized liquid polymer.

17. The method of claim 16 , wherein the aluminum nanoparticles includes metallic aluminum nanoparticles dissolved in a solvent, and further wherein the ceramic alumina includes ceramic alumina nanoparticles dissolved in a solvent.

18. The method of claim 15 , wherein the polymer matrix includes an electrical conductivity level that is lower than an electrical conductivity level of the composite matrix.

19. The method of claim 15 , wherein the carbon nanotubes are selected from the group consisting of single-wall carbon nanotubes, double-wall carbon nanotubes, few-wall carbon nanotubes, multi-wall carbon nanotubes, ultra-short carbon nanotubes, and combinations thereof.

20. The method of claim 15 , including:

coating the liner to form a multilayer structure with a second liner formed according to the method of claim 15 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2018
From: KHIZAR, MUHAMMAD; BUZZI, ERMANNO
To: WHIRLPOOL CORPORATION
Reel/Frame 047517/0113 →
Continuity (1)
Related Publication 20200163172A1 · May 21, 2020