相关实验视频
Updated: Apr 13, 2026
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High Throughput Single-cell and Multiple-cell Micro-encapsulation
Published on: June 15, 2012
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超性微囊 超性微囊
Yi Zhang1, Hao Chen1,2, Kai Gao3
1State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084, China.
ACS applied materials & interfaces
|February 19, 2025
概括
研究人员使用微囊技术在聚合物复合材料中实现了宏观超度. 这种新的自滑方法在需求时释放油,显著减少摩擦.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 聚合物工程 聚合物工程
背景情况:
- 超滑性,以低于0.01的摩擦系数 (COF) 定义,在各种材料中已经很成熟,但在聚合物复合材料中很少实现.
- 现有的实现超滑性的方法通常涉及特定的液体滑剂或先进材料,如2D和碳结构.
研究的目的:
- 开发一种新的方法来实现聚合物复合材料的宏观超度.
- 研究聚合物材料基于微囊的自我滑策略的有效性.
主要方法:
- 使用固体亚微米囊作为矩阵单元和含油微囊作为滑剂填充剂制造聚合物复合材料.
- 在大气条件下,在广泛的温度范围 (0-200°C) 中测试复合材料的 Tribological 性能.
主要成果:
- 实现了强大的宏观超度,COF范围从0.003到0.009.
- 在超过500米的滑动距离上,证明了持续的超度.
- 观察了由于释放的油脂而形成的水力动态膜和边界 tribo-film 的超低剪切强度.
结论:
- 微囊技术为聚合物复合材料提供了有效的按需自滑机制.
- 这种方法为实现聚合物基材料的超性提供了一条新的途径.
- 这些发现有可能扩大超性在苛刻环境中的工程应用.
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