相关实验视频
Updated: Jun 2, 2025

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Fabrication and Design of Wood-Based High-Performance Composites
Published on: November 9, 2019
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强大且耐火的再生木材通过联合酸化-表面纳米纤维化和离子交联策略
Wen-Bin Sun1, Zi-Meng Han1, Xiao-Han Luo1
1Department of Chemistry, New Cornerstone Science Laboratory, 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.
ACS nano
|January 17, 2025
概括
研究人员通过酸化木材 Veneer 来开发出新的木材结构材料. 这些"化学接"结构材料 (CWSMs) 提供优越的机械强度和耐火性,为塑料提供可持续的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 可持续化学 可持续化学
背景情况:
- 越来越多的对可持续材料的需求,以减轻塑料污染.
- 基于木材的材料由于其机械和热性能,显示出有前途.
- 需要提高木材复合材料的性能和耐火性.
研究的目的:
- 开发高性能,耐火的木制结构材料.
- 为了研究表面酸化对木材特性的影响.
- 创造一种可持续的替代石油塑料的替代品.
主要方法:
- 通过酸化用于纳米纤维化的木材贴面的表面修饰.
- 通过化学交叉连接制造"化学接"结构材料 (CWSMs).
- 机械,热和耐火性能的表征.
主要成果:
- 酸化改变了木材的分子结构和表面形态,增强了中间体相互作用.
- CWSM实现了225 MPa的屈曲强度和16 GPa的模量,超过了天然木材.
- CWSM表现出优异的耐火性,氧气指数为49%,使其不易燃烧.
结论:
- 与天然木材相比,基于化木材的CWSM具有优越的机械性能和耐火性能.
- 这些生物质衍生材料为传统塑料提供了可持续的,高性能的替代品.
- 开发的CWSM显示出对于需要耐用,耐火和环保结构部件的应用有很大的潜力.
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