可回收的固体 - 固体相变材料通过可逆无水化物 - 酒精交叉连接具有优异的隐性热量,用于高效的热储存
Yahe Wu1, Mingsen Chen1, Guangzhi Zhao1
1Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
Advanced materials (Deerfield Beach, Fla.)
|January 17, 2024
概括
研究人员开发了使用可逆交联的新型固体-固体相变材料 (SSPCMs),以实现高潜热和双重回收. 这些先进的SSPCM提供了改进的储能和太阳能应用.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 固体-固体相变材料 (SSPCMs) 提供了形状稳定性,但由于交叉连接,通常会受到降低的潜热和糟糕的可回收性的影响.
- 现有的交联SSPCM需要封装或支,这限制了它们的实际应用.
研究的目的:
- 开发具有增强潜热和双重回收能力的新型SSPCM.
- 通过使用可逆交联策略来克服传统交联SSPCM的局限性.
主要方法:
- 使用内部催化可逆无水化物-酒精交联反应制造SSPCM.
- 作为相变材料和交叉连接剂,利用了无水合物共聚合物 (烯-烯无水合物) 和聚乙烯糖醇.
- 通过债券交易所重塑和可逆解离-回交链接来研究双重可循环利用性.
主要成果:
- 达到156.8 Jg-1的峰值潜热,超过现有的可回收交联SSPCM.
- 已证明可调整的抗拉强度 (6.611.0 MPa) 和材料的灵活性.
- 在不需要额外的反应性化学物质的情况下,表现出异常的双重可回收性.
结论:
- 新的可逆交联策略有效地提高了SSPCM的潜热和可回收性.
- 这些SSPCM显示了有效的太阳能转换,储存和释放的承诺,特别是集成太阳能热填充器.
- 开发的材料代表了可回收和高性能相变材料的重大进步.
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