杜尔西/粉系统作为长期热能储存的形状稳定相变材料
Martyna Szatkowska1, Kinga Pielichowska1
1Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Krakow, Al. Mickiewicza 30, 30-059 Kraków, Poland.
Polymers
|November 27, 2024
概括
研究人员使用粉和dulcitol开发了形状稳定的相变材料 (SSPCM). 这些新型材料提供了优异的热能储存,具有高潜热量,并提高了应用程序的稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 储能 储能 储能 储能 储能 储能
背景情况:
- 人们越来越感兴趣的相变材料 (PCM),如dulcitol和糖醇用于储存热能.
- 糖醇提供高潜热和冷结晶,但遭受体积变化和添加沉积.
- 需要形状稳定的相变材料 (SSPCM),以克服传统PCM的局限性.
研究的目的:
- 通过粉和dulcitol的凝结来开发形状稳定的相变材料 (SSPCM).
- 描述合成的dulcitol/粉复合物的热性能和稳定性.
- 评估这些SSPCM在长期热能存储应用中的潜力.
主要方法:
- 粉和dulcitol的凝合,以创建形状稳定的复合材料.
- 使用差分扫描热度计 (DSC),步态DSC,热重力测量分析 (TGA),里埃变换红外光谱学 (FTIR) 和扫描电子显微镜 (SEM) 的表征.
- 评估热稳定性和相位过渡行为.
主要成果:
- 杜尔西/粉复合材料显示出作为形状稳定相变材料的巨大潜力.
- 50:50的dulcitol/粉样本显示了高温的冷结晶 (高达52.90 J/g) 和高温的化 (126.16 J/g).
- 观察到优异的热稳定性,在200°C以下的质量损失最小,相变发生在190°C以上.
结论:
- 粉-dulcitol复合材料是有效的形状稳定相变材料.
- 这些材料具有有前途的热能储能能力,稳定性更强.
- 开发的SSPCM适用于长期热能存储应用.
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