增强的刺激反应的相变凝通过入启用的离子透
Peimin Yu1, Xiong Wang2, Ziye Ling1,3,4
1Key Laboratory of Enhanced Heat Transfer and Energy Conservation, The Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China. zyling@scut.edu.cn.
Materials horizons
|June 10, 2025
概括
研究人员开发了新的刺激响应相变凝 (PCG),灵感来自制. 这些材料实现了前所未有的刚性和高热能储能能力,克服了用于热管理的相变材料之前的局限性.
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
- 热力学是一种热力学.
背景情况:
- 超冷变相材料 (PCM) 对于各种应用中的热调节至关重要.
- 化盐相变凝具有可调节的特性,但由于盐离子破坏而面临度和机械强度的限制.
- 现有的PCM难以平衡机械强度与高能储能能力.
研究的目的:
- 设计具有增强机械强度和高热能存储能力的响应刺激的相变凝 (PCG).
- 为了克服和机械强度之间的权衡在水合盐PCM中.
- 开发一种新的离子透策略,灵感来自于材料设计的自然过程.
主要方法:
- 使用盐离子和聚合物网络之间的竞争性水合效应开发了响应刺激的相变凝 (PCG).
- 采用了受到蔬菜制启发的离子透策略.
- 研究了工程PCG的机械性能,热能储能能力和相位过渡行为.
主要成果:
- 实现了超高刚度 (高达2120 MPa) 和特殊的热能储能能力 (210 kJ kg-1).
- 由于盐离子超冷却,证明了触觉/温度触发的柔软和刚性状态之间的可逆转变.
- 展示了卓越的脱冰性能和有效的热管理能力.
结论:
- 新的离子透策略成功克服了传统水合盐PCM的局限性.
- 设计的PCG为先进的热管理提供了强大的,具有成本效益和可扩展的解决方案.
- 这些材料为需要可调节的机械性能和高热能存储的应用开辟了新的途径.
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