文献类型：期刊文献

中文题名：柔性木质复合材料:从刚性到可扭转的制备策略与跨领域多功能应用

英文题名：Flexible wood composites:from rigidity to twistability via advanced fabrication for multidisciplinary applications

作者：李秀英[1] 张镭[1] 孟源[1] 常亮[1] 唐启恒[1]

第一作者：李秀英

机构：[1]中国林业科学研究院木材工业研究所,北京100091

年份：2026

卷号：48

期号：2

起止页码：1-14

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：;北大核心:【北大核心2023】；

基金：国家重点研发计划课题(2023YFD2201404)。

语种：中文

中文关键词：柔性木质复合材料;跨尺度柔性化;绿色建材;智能传感;能源存储;3D/4D打印;生物医药;可持续材料

外文关键词：flexible wood composites;cross-scale flexibilization;green building materials;smart sensing;energy storage;3D/4D printing;biomedicine;sustainable materials

分类号：S781.7;S781.23;TB332

摘要：石油基柔性复合材料虽具备优异弯折-变形能力,却面临不可降解、碳排放高、资源枯竭等瓶颈。木材因其分级多孔结构和可再生特性,成为替代石油基连续相的理想选择,但其跨尺度柔性化设计机制尚缺乏系统性梳理。本文聚焦柔性木质复合材料(FWC)这一新兴领域,系统综述其研究进展:从纤维素分子到薄木单板的跨尺度结构出发,分类评述两大柔化策略——木纤维路线(熔融共混、连续平压、增材制造)与薄木单板路线(木质素脱除、塑膜饰面)的工艺-结构-性能构效关系;总结FWC在绿色建材、智能传感、能量存储、环境修复及生物医学等跨场景应用的前沿突破;剖析其规模化应用面临的环保一致性、长效耐久性及功能集成度等挑战;并展望FWC在生物组织支架、形状记忆器件及具身智能系统等前沿方向的发展路径。本文旨在为不同应用场景下木材跨尺度柔性化设计提供技术参考,推动FWC对石油基功能材料的绿色替代,助力“双碳”目标下的木材高值化利用与可持续材料创新。
Petroleum-based flexible composites face critical bottlenecks of non-degradability,high carbon footprint,and resource depletion,despite their excellent bendability.Wood,with its hierarchical porous architecture and renewable nature,offers an ideal substitute for petroleum-based matrices;however,crossscale flexibilization mechanisms remain poorly systematized.This review systematically examines recent advances in the emerging field of flexible wood composites(FWCs).We begin with cross-scale structures from cellulose molecules to thin veneers,categorizing two primary flexibilization strategies:(i)the wood fiber route,encompassing melt compounding,continuous flat-pressing,and additive manufacturing;and(ii)the thin veneer route,involving lignin removal and polymer lamination.Their processing-structureproperty relationships are critically evaluated.We further highlight state-of-the-art applications of FWCs in green construction,smart sensing,energy storage,environmental remediation,and biomedicine.Challenges for scalable implementation,such as environmental consistency,long-term durability,and functional integration,are also analyzed.Finally,future pathways are outlined for frontier applications including tissue scaffolds,shape-memory devices,and embodied intelligent systems.This review provides technical guidelines for cross-scale wood flexibilization across diverse scenarios,advances FWCs as a green alternative to petroleum-based functional materials,and supports high-value wood utilization toward carbon neutrality and sustainable material innovation.