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可伸缩的层材料具有可调整的结构颜色,来自弹性体,离子体和天然聚合物的分层堆

Yiming Zhang¹, Paraskevi Flouda^1,2, Valeriia Poliukhova¹

¹School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States.

ACS applied materials & interfaces

|March 31, 2025

概括

研究人员使用纤维素纳米晶体 (CNC) 和离子聚合物开发了可拉伸复合材料. 这些坚固的材料保留了充满活力的结构颜色,并为先进的传感器和光学设备提供了潜力.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
纳米技术纳米技术

背景情况:

纤维素纳米晶体 (CNCs) 由于螺旋结构而表现出色彩白,但缺乏伸展性.
数控机的脆弱性限制了它们在柔性材料中的应用.

研究的目的:

为了创建高度伸展的复合材料,结合CNCs.
为了在灵活的格式中保持CNC的结构色彩特性.
探索可穿戴传感器和光子设备中的应用.

主要方法:

使用CNC和分支离子聚合物 (bIP) 制造层叠弹性复合材料.
在复合结构中加入氨基终结聚 (N-异烯胺) (PNIPAM).
机械测试用于评估伸展性和性.

主要成果:

复合材料实现了高机械伸展性,可达到150%的应变.
复合材料的性显著增加,这是由于裂阻断机制.
从CNC中保存鲜的结构颜色,对湿度和温度做出反应.

结论:

使用CNC和bIP开发了可拉伸,坚固和可调色的复合材料.
这些材料在压力下保持结构颜色和机械完整性.
对于强大的可穿戴传感器,灵活的光学标签和光子设备有希望的候选人.

关键词:

有分支的离子聚合物纤维素纳米晶体的使用湿度和热量响应的颜色响应湿度和热量.可伸缩的多层复合材料.

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