Methods for forming nanotube fabrics with controlled surface roughness and degree of rafting
US11136239B2 · kind B2 · utility
Inventors
Key dates
| Filing date | May 16, 2019 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | May 16, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249921
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for forming a nanotube fabric with a controlled surface roughness (or smoothness) and a selected degree of rafting are disclosed by adjusting the concentration levels of a selected ionic species within a nanotube formulation used to form the nanotube fabric. In one aspect, the present disclosure provides a nanotube formulation roughness curve (and methods for generating such a curve) that can be used to select a utilizable range of ionic species concentration levels that will provide a nanotube fabric with a desired surface roughness (or smoothness) and degree of rafting. In some aspects of the present disclosure, such a nanotube formulation roughness curve can be used adjust nanotube formulation prior to a nanotube formulation deposition process to provide nanotube fabrics that are relatively smooth with a low degree of rafting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.