一种全天然木材启发的气凝胶。

An All-Natural Wood-Inspired Aerogel.

机构信息

Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China.

Institute of Innovative Materials, Department of Materials Science and Engineering, Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.

出版信息

Angew Chem Int Ed Engl. 2023 Feb 1;62(6):e202211099. doi: 10.1002/anie.202211099. Epub 2022 Dec 22.

DOI:10.1002/anie.202211099

PMID:36416072

Abstract

The oriented pore structure of wood endows it with a variety of outstanding properties, among which the low thermal conductivity has attracted researchers to develop wood-like aerogels as excellent thermal insulation materials. However, the increasing demands of environmental protection have put forward new and strict requirements for the sustainability of aerogels. Here, we report an all-natural wood-inspired aerogel consisting of all-natural ingredients and develop a method to activate the surface-inert wood particles to construct the aerogel. The obtained wood-inspired aerogel has channel structure similar to that of natural wood, endowing it with superior thermal insulation properties to most existing commercial sponges. In addition, remarkable fire retardancy and complete biodegradability are integrated. With the above outstanding performances, this sustainable wood-inspired aerogel will be an ideal substitute for the existing commercial thermal insulation materials.

摘要

木材的各向异性孔结构赋予其许多优异的性能，其中低热导率引起了研究人员的关注，他们开发出类似木材的气凝胶作为优异的隔热材料。然而，日益增长的环境保护需求对气凝胶的可持续性提出了新的、严格的要求。在这里，我们报告了一种由全天然成分组成的受木材启发的气凝胶，并开发了一种激活表面惰性木颗粒以构建气凝胶的方法。所得到的受木材启发的气凝胶具有类似于天然木材的通道结构，赋予其优于大多数现有商业海绵的隔热性能。此外，还集成了显著的阻燃性和完全的生物降解性。凭借上述出色的性能，这种可持续的受木材启发的气凝胶将成为现有商业隔热材料的理想替代品。