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Jiajia Du¹, Daohai Zhang¹, Teng Zhou¹

¹School of Chemical Engineering, Guizhou Minzu University, Guiyang 550025, China.

|June 13, 2025

概括

研究人员使用稀土元素开发了一种新的聚乙醇 (PVA) 和聚乙烯糖醇 (PEG) 水凝. 这种智能材料提供可调节的光发光,用于安全的数据加密和防伪应用.

科学领域:

材料科学材料科学材料科学
光电学是指光电子产品.
聚合物化学聚合物化学

背景情况:

对数据安全的日益增长的需求需要先进的材料来隐藏信息.
传统的安全方法在数字时代面临挑战,推动了创新解决方案的需求.
水凝材料具有独特的性能,但往往缺乏可调节的光学特性,用于先进的应用.

研究的目的:

开发一种具有可控制光发光的新型复合水凝.
为了研究稀土离子兴奋剂对水凝特性的影响.
探索开发的材料在光学加密和防伪方面的潜力.

主要方法:

聚乙烯醇 (PVA) 和聚乙烯糖醇 (PEG) 复合液凝的合成.
加入稀土离子用于光发光调.
使用扫描电子显微镜 (SEM),X射线光电谱学 (XPS),X射线衍射 (XRD) 和光谱学进行表征.
机械性能和pH响应的评估.

主要成果:

成功开发了一种PVA/PEG/稀土复合液凝,可调节光发光度,从红色到绿色.
机械性能显著改善,压力强度增加了30.7% (从17.6 MPa增加到23 MPa).
证明了出色的性pH反应,在增加NaOH度时发光灭.
确认可调节的光色和动态响应特征.

结论:

PVA/PEG/稀土水凝是一种有前途的功能材料,用于智能防伪和光学加密.
该材料的可编程光色变化和动态响应使信息隐藏成为可能.
稀土兴奋剂有效地增强了机械性能,并提供可调节的光发光.

关键词:

性pH反应的性pH反应颜色控制颜色控制这是一种水凝.信息的加密信息的加密.稀土是一种稀土.

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