具有光热响应的形状记忆漆酚-铁颗粒/聚氨酯复合材料，用于远程控制和传感

IF 14.2 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-06-20 DOI:10.1016/j.compositesb.2025.112722

Weibin Bai , Jialin Chen , Xinghang Chen , Shijing Zheng , Shuhao Yuan , Rongkun Jian , Yucai Lin

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引用次数: 0

摘要

光热响应形状记忆材料由于其快速的响应和精确的可控性，已经发展成为智能传感系统的一个很有前途的平台。在本文中，我们将分子工程聚氨酯基质与生物质光热纳米颗粒相结合，开发了一种多功能复合材料。以聚四甲基2000为软段，六亚甲基二异氰酸酯为硬段，1,4-丁二醇/4,4′-二硫代二胺为扩链剂合成了形状记忆聚氨酯，实现了软硬段协调平衡的优化结构。天然漆酚与绿-硫酸一步螯合/氧化制备的漆酚-铁聚合物包封Fe3O4复合粒子（漆酚-铁粒子）具有优异的光热转化率，同时保持了良好的界面相容性。通过控制纳米颗粒含量（小于1 wt%）来优化界面相互作用，该复合材料表现出增强的机械拉伸强度（17.21 MPa），优异的形状记忆性能（95.56%固定，97.78%恢复），宽温度范围的形状记忆（37-80°C），以及多种功能，包括按需灭菌（100%抑制），快速光热乙醇辅助自修复（30分钟内恢复95.58%）。持久的光触发驱动（1000+周期）和精确的光触发形状变形性能。此外，设计的光热-环境协同驱动的组合逻辑器件显著提高了温度检测精度。本研究建立了光热响应智能材料的创新体系，同时为具有优异功能和可靠性的先进传感系统开辟了新的途径。未来的研究应侧重于克服热惯性引起的响应延迟和优化制造过程，以实现包括智能遥感、环境监测、软机器人系统和生物医学仪器在内的不同领域的实际应用。

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Shape memory urushiol-Fe particle/polyurethane composite material with photothermal response for remote control and sensing

Due to fast response and precise controllability, photothermal responsive shape memory materials have developed into a promising platform for intelligent sensing systems. In this paper, we have developed a multifunctional composite material by combining molecularly-engineered polyurethane matrix with biomass photothermal nanoparticles. The shape memory polyurethane was synthesized using polytetramethylene 2000 as the soft segment, hexamethylene diisocyanate as the hard segment, and 1,4-butanediol/4,4′-dithiodianiline as chain extenders, achieving an optimized structure with coordinated balance between soft and hard segments. The urushiol-iron polymer encapsulated Fe₃O₄ composite particles (urushiol-Fe particles) prepared through a one-step chelation/oxidation of natural urushiol and green-vitriol, provided outstanding photothermal conversion while maintaining excellent interfacial compatibility. By controlling the nanoparticle content (less than 1 wt%) to optimize interfacial interactions, the composite exhibits enhanced mechanical tensile strength (17.21 MPa), excellent shape memory performance (95.56 % fixation, 97.78 % recovery), and wide-temperature-range shape memory (37–80 °C), along with multifunctionalities including on-demand sterilization (100 % inhibition), rapid photothermal ethanol-assisted self-healing (95.58 % recovery in 30 min), durable light-triggered actuation (1000+ cycles) and precise light triggered shape deformation performance. Furthermore, the designed combination logic device driven by photothermal-environment synergy significantly improved temperature detection accuracy. This study establishes an innovative system for photothermal-responsive intelligent materials while opening new pathways for advanced sensing systems with excellent functionality and reliability. Future research should focus on overcoming thermal inertia-induced response delays and optimizing manufacturing processes to enable real-world applications across diverse fields including smart remote sensing, environmental surveillance, soft robotic systems, and biomedical instrumentation.

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.