Environmentally friendly shape memory smart composite material with multiple response modes

IF 3.1 2区农林科学 Q1 FORESTRY

Wood Science and Technology Pub Date : 2025-04-28 DOI:10.1007/s00226-025-01662-6

Fang Suo, Zhongyang Bai, Xiangwei Ma, Yongtao Yao, Yanju Liu

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引用次数: 0

Abstract

Cellulose and lignin offer advantages of low cost and environmental friendliness. In this study, a multi-responsive shape memory smart composite material was proposed based on carboxymethyl cellulose and lignin. Lignin imparts photothermal responsiveness to the composite, while cellulose provides water responsiveness. A bio-inspired structure mimicking the water transport mechanism of plant leaves was developed to improve the water responsive functionalities of composite material (shape recovery within 30 s). A self-driven device that mimics the blooming of a flower was successfully fabricated using this composite material. The shape memory smart composite material exhibits a high degree of design flexibility. Based on the mechanisms of water response, a simple structure programming method was proposed, enabling the design of programmable structures with smart and controllable features. This study provides a new approach to the design of multifunctional smart materials, enhancing the application potential of shape memory materials under multiple environmental factors.

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具有多种响应模式的环保形状记忆智能复合材料

纤维素和木质素具有成本低、环境友好的优点。本研究提出了一种基于羧甲基纤维素和木质素的多响应形状记忆智能复合材料。木质素赋予复合材料光热响应性，而纤维素提供水响应性。为了提高复合材料的水响应功能（30秒内形状恢复），研究人员开发了一种模拟植物叶片水分运输机制的仿生结构。利用这种复合材料成功制造了一个模仿花朵盛开的自驱动装置。形状记忆智能复合材料具有高度的设计灵活性。基于水响应机理，提出了一种简单的结构编程方法，实现了具有智能和可控特征的可编程结构设计。本研究为多功能智能材料的设计提供了新的途径，增强了形状记忆材料在多种环境因素下的应用潜力。

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来源期刊

Wood Science and Technology 工程技术-材料科学：纸与木材

CiteScore

5.90

自引率

5.90%

发文量

审稿时长

3 months

期刊介绍： Wood Science and Technology publishes original scientific research results and review papers covering the entire field of wood material science, wood components and wood based products. Subjects are wood biology and wood quality, wood physics and physical technologies, wood chemistry and chemical technologies. Latest advances in areas such as cell wall and wood formation; structural and chemical composition of wood and wood composites and their property relations; physical, mechanical and chemical characterization and relevant methodological developments, and microbiological degradation of wood and wood based products are reported. Topics related to wood technology include machining, gluing, and finishing, composite technology, wood modification, wood mechanics, creep and rheology, and the conversion of wood into pulp and biorefinery products.