Patent · US Active

Artificial nacre material with layered structure and preparation method thereof

US11267721B2 · kind B2 · utility

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8Claims

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Assignee

WUHAN UNIVERSITY OF TECHNOLOGY · CN

Inventors

Fazhou Wang · 红钢城街道, CN
Zhichao Liu · Shanghai, CN
Ming Lei · Princeton, US
Shuguang Hu · 红钢城街道, CN

Key dates

Filing date	Apr 27, 2021
Grant date	Mar 8, 2022
Priority date	—
Expiry date	Apr 27, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/80
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention discloses an artificial nacre material with layered structure and preparation method thereof. The preparation method includes the following steps: uniformly mixing a carbonated cementitious material and water at a water-solid ratio of 0.3 to 1.2 to obtain a carbonated cementitious material suspension; treating the carbonated cementitious material suspension by a freeze-casting process to obtain a carbonated cementitious material coagulation with layered structure; treating the carbonated cementitious material coagulation with the layered structure by a freeze-drying process to obtain a carbonated cementitious material with layered structure; treating the carbonated cementitious material with layered structure by a carbonization process to obtain an artificial nacre material with layered structure. The obtained artificial nacre material with layered structure has higher fracture toughness and durability, and the preparation method has the advantages of low energy consumption, carbon dioxide fixation and environmental friendliness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.