Z-cnt filled meltable adhesives for bonding of deicers

Patent metadata

Field	Value
Publication number	US-2023121788-A1
Application number	US-202218059745-A
Country	US
Kind code	A1
Filing date	Nov 29, 2022
Priority date	Dec 16, 2018
Publication date	Apr 20, 2023
Grant date	—

Abstract

A method of making an adhesive for an ice protection assembly includes transferring Z-CNTs from a substrate carrier into the adhesive. De-bonding of the adhesive for ice protection assembly inspection or repair or repositioning at initial installation includes heating the Z-CNTs in the adhesive to soften the adhesive and allow for easy removal.

First claim

1 . A method of bonding an ice protection assembly to an aircraft component comprising:
applying a primer on a surface of the aircraft component, wherein the primer is configured to increase adhesion of the adhesive on the surface; applying an adhesive on the primer on the surface of the aircraft component, wherein the adhesive is loaded with vertically aligned carbon nanotubes (Z-CNTs); and attaching a de-icer to the aircraft component by the adhesive.

2 . The method of claim 1 , wherein the aircraft component is selected from the group consisting of an airfoils, nacelles, nosecones, engine cowls, and leading edges.

3 . The method of claim 1 , wherein the adhesive comprises a thermoplastic adhesive.

4 . The method of claim 3 , wherein the thermoplastic adhesive is pressure sensitive adhesive, selected from the group consisting of include acrylates, silicones, nitriles, and styrenes.

5 . The method of claim 3 , wherein the thermoplastic adhesive is hot melt adhesive.

6 . The method of claim 1 , wherein the Z-CNTs are no more than 50% by weight of the adhesive.

7 . The method of claim 1 , wherein the de-icer is pneumatic de-icer or an electrothermal de-icer.

8 . The method of claim 1 , wherein the Z-CNTs are aligned at a 90 degree angle relative to the adhesive surface.

9 . The method of claim 1 , wherein the Z-CNTs are parallel to the adhesive surface.

10 . A method of preparing an adhesive comprising infiltrating the adhesive with vertically aligned carbon nanotubes (Z-CNTs).

11 . The method of claim 11 , wherein infiltrating the adhesive comprises applying a substrate with Z-CNTs to the adhesive.

12 . The method of claim 10 , wherein the adhesive comprises a thermoplastic adhesive.

13 . The method of claim 12 , wherein the thermoplastic adhesive is pressure sensitive adhesive, selected from the group consisting of include acrylates, silicones, nitriles, and styrenes.

14 . The method of claim 12 , wherein the thermoplastic adhesive is hot melt adhesive.

15 . The method of claim 10 , wherein the Z-CNTs are no more than 50% by weight of the adhesive.

16 . A method of de-bonding an adhesive from a component comprising:
electrically connecting the adhesive to a power source; running voltage through the adhesive so that Z-CNTs in the adhesive heat and soften the adhesive; and removing the softened adhesive.

17 . The method of claim 16 , further comprising repositioning the adhesive.

18 . The method of claim 17 , wherein the Z-CNTs comprise no more than 50% by weight of the adhesive.

19 . The method of claim 16 , wherein removing the softened adhesive comprises scrapping, pulling, or peeling the adhesive off the component.

20 . The method of claim 16 , wherein the adhesive comprises a thermoplastic adhesive and the Z-CNTs are no more than 50% by weight of the adhesive.

Assignees

• Goodrich Corp

Inventors

• Slane Casey
• Walsh Peter J
• Hu Jin
• Ching Nathaniel

Classifications

• C09J125/14

  with unsaturated esters · CPC title

• C09J183/04

  Polysiloxanes · CPC title

• C09J11/04

  inorganic · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• C09J9/02

  Electrically-conducting adhesives · CPC title