Transparent glazing materials, assemblies including the glazing materials, and methods of forming same
AssigneeThe Regents of the University of Colorado, a body corporate
InventorsIvan I. Smalyukh, Eldho Abraham, Vladyslav Cherpak, Bohdan Senyuk, Taewoo Lee, Jan Bart ten Hove
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Abstract
Transparent glazing materials, assemblies including the glazing material(s), and methods of forming and using the glazing materials and assemblies are provided. Exemplary glazing material comprising an aerogel that includes a network of cellulose nanofibers and silicon functional groups bonded to surfaces of the cellulose nanofibers.
Claims22
A transparent glazing material comprising:
- an aerogel comprising a network of cellulose nanofibers;
- and
- silicon functional groups bonded to surfaces of the cellulose nanofibers,
- wherein a thermal conductivity of the transparent glazing material is less than 26 mW/(K·m) or less than 20 mW/(K·m) or less than 15 mW/(K·m).
2-3. (canceled)
The transparent glazing material of claim 16, wherein the aerogel is optically anisotropic.
A method of forming a transparent aerogel, the method comprising the steps of:
- forming cellulose nanofibers having an average diameter of less than 10 nm and an average length greater than 100 nm;
- functionalizing the cellulose nanofibers with carboxylate anions to form functionalized cellulose nanofibers;
- forming a hydrogel from a network of the functionalized cellulose nanofibers;
- forming an aerogel from the hydrogel;
- and
- silanizing a surface of the functionalized cellulose nanofibers.
23-24. (canceled)
Dependencies are inferred from the claim text.