Foam formulation and method of preparing solid porous materials with same

US10442734B2 · kind B2 · utility

Assignee

• Nano and Advanced Materials Institute Limited · CN

Inventors

• Guoxing Sun · Thompson Drive, CN
• Tomi Pekka Bernhard Nissinen · Sha Tin, CN
• Ivan M. L. Sham · Sha Tin, CN

Key dates

• Filing date: May 5, 2016
• Grant date: Oct 15, 2019
• Expiry date: May 5, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/10
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A foam formulation for preparing polymer-grafted nanoparticles stabilized foam, including nanoparticles, monomers of a polymer to be grafted on the nanoparticle surface, polymerization initiator, surfactant and water. The polymer-grafted nanoparticles may act together with the surfactant to form single-layer assembling at the boundary of bubbles, which in turn stabilizes the foam. The generated foam shows much better stability in long-term storage, high-temperature drying process and alkaline environments than conventional wet foams. A method of preparing solid porous materials with the foam is also provided.