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US 2026/0242558 A1Published application
Highly transparent thin polyvinyl alcohol aerogels and manufacture thereof
AssigneeNortheastern University
InventorsYi Zheng, Xiaoli Li
Life of this patent
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Abstract
Disclosed are novel polyvinyl alcohol (PVA) aerogels created through an innovative one-step standing method.
Claims22
An aerogel comprising polyvinyl alcohol (PVA);
- wherein the aerogel comprises a plurality of small pores having an average small pore diameter;
- a plurality of large pores having an average large pore diameter;
- and
- the average small pore diameter is less than the average large pore diameter.
1 more element
4-8. (canceled)
A process of preparing an aerogel comprising polyvinyl alcohol (PVA), comprising:
- combining PVA and a first solvent, thereby producing a PVA solution;
- introducing the PVA solution into a mold;
- allowing the PVA solution to gel at ambient temperature for a gelling duration, thereby producing a PVA wet gel;
- contacting the PVA wet gel with a second solvent to form a soaked PVA wet gel;
- and
- drying the soaked PVA wet gel, thereby producing a PVA aerogel.
3 more elements
-55. (canceled)
Dependencies are inferred from the claim text.