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可编程和形状颜色同步双响应木材与热刺激
Yi Tan1, Kaili Wang2, Youming Dong2
1State Key Laboratory of Efficient Production of Forest Resources, MOE Key Laboratory of Wood Material Science and Application, Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China.
ACS nano
|January 26, 2024
概括
这项研究引入了一种新型木材复合材料,该复合材料根据温度而改变形状和颜色. 这种对刺激有反应的材料为高级应用提供可编程形状记忆和双响应.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物复合材料是一种生物复合材料.
背景情况:
- 响应刺激的材料对于传感器和电子设备至关重要,但在强化,可视化和生物质集成方面面临挑战.
- 动态共价玻璃体提供适应性网络,而热色微囊提供视觉响应能力.
研究的目的:
- 通过将热色微囊 (TCM) 纳入动态共价玻璃体中,开发一种可编程的形状颜色双响应木材复合材料 (SRW-TC).
- 为了研究材料的形状记忆,可编程性和双响应特性.
- 评估其在传感,执行和信息加密方面的应用潜力.
主要方法:
- 在木结构中浸热色微囊 (TCM) 合的动态共价玻璃体.
- 玻璃过渡温度 (34.99°C) 和拓过渡温度 (149.62°C) 的表征,以了解响应性.
- 评估机械,热和光学性能,包括抗拉强度,导热率,透射率和雾.
主要成果:
- SRW-TC具有可编程的形状内存和由温度变化触发的刚性-灵活性切换.
- 该材料表现出令人满意的机械强度 (45.70 MPa),绝热 (0.27 W/m K) 和异型光管理.
- 观察到对热刺激的反应同步的形状和颜色变化,使材料状态和功能可视化.
结论:
- 开发的SRW-TC为创建具有智能应用的多功能木材复合材料提供了一个简单的策略.
- 该材料的双响应性和可编程性为环境传感,交互材料和信息双加密开辟了道路.
- 这种方法为设计具有增强性能和视觉反的先进木材材料提供了指导方针.
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