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Citation: Beibei Sun, Yanghui Wang, Shenhong Gao. 行走的“红绿灯”——拨水剂的制备[J]. University Chemistry, ;2022, 37(5): 211200. doi: 10.3866/PKU.DXHX202112004 shu

行走的“红绿灯”——拨水剂的制备

College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing 312000, Zhejiang Province, China

Corresponding author: Yanghui Wang, wangyanghui123@163.com
Received Date: 1 December 2021

物体表面的润湿性能与其表面特殊的微观几何结构和理化性能相关，是固体表面一种重要的特征，可用接触角的量化值衡量。润湿性不仅影响自然界的动植物生命活动，在人类的日常生活中的应用也十分广泛。本科普实验通过展示自然界中荷叶、水黾等生物的超疏水表面，对超疏水原理进行阐述，以帮助人们了解生活中超疏水材料的由来和发展。然后，利用溶胶-凝胶法制备超疏水材料，并进行对比实验以展示疏水效果。最后，我们将基于靛蓝胭脂红变色的“红绿灯”实验在超疏水材料上进行绘画展示，让人们亲身感受化学之美、化学之趣，并以此激发其对化学的兴趣，引发人们对材料科学的探索和思考。
- Surface wettability,
- Superhydrophobic material,
- Indigo carmine,
- Popular science experiment,
- Interesting experiment
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