公开(公告)号：US20240327596A1

公开(公告)日：2024-10-03

申请号：US18524186

申请日：2023-11-30

Applicant: Ocean University of China

Inventor： Hongzhi CUI ,  Ruiqi XU ,  Na WEI ,  Minggang ZHAO ,  Aiping WANG ,  Jun ZHAO

IPC: C08J9/28 ,  B23K26/0622 ,  B23K26/382 ,  B23K26/402 ,  C02F1/14 ,  C08J3/075 ,  C08J3/21 ,  C08J9/36 ,  C08K3/34 ,  C08L5/12 ,  F24S70/16

CPC classification number: C08J9/283 ,  B23K26/0622 ,  B23K26/389 ,  B23K26/402 ,  C02F1/14 ,  C08J3/075 ,  C08J3/212 ,  C08J9/36 ,  C08K3/34 ,  C08L5/12 ,  F24S70/16 ,  C02F2103/08 ,  C08J2201/0484 ,  C08J2205/026 ,  C08J2205/04 ,  C08J2305/12 ,  C08J2429/04 ,  C08K2201/001 ,  C08K2201/011 ,  C08L2203/14 ,  C08L2312/00

Abstract: Disclosed are an aerogel with a hierarchical pore structure formed using a pulsed laser technology, and a preparation method and use thereof. In the preparation method, a nano silicon-containing inorganic material as a freezing element, a biomass polymer as a cross-linking agent, and deionized water as a solvent are mixed and a resulting mixture is left to stand and gelatinized to obtain a hydrogel; the hydrogel is frozen to form ice crystals therein, and the ice crystals are removed by freeze-drying to obtain a micron-nano porous aerogel; the micron-nano porous aerogel is subjected to customized millimeter-scale punching using a pulsed laser to obtain an aerogel with a millimeter-micron-nano hierarchical pore structure.