PVA/4-SZ组装式固态相变储能材料的研究

Prepation and Study of Phase Change Materials of Chemically Modified PVA/4-SZ Composites

制备了一种以聚乙烯醇为骨架、4-苯乙烯吡啶以氢键组装式支链的固-固相变储能材料。利用4-苯乙烯吡啶从结晶态到无定型态之间的转变,实现了该材料的储能与释能,整个过程中材料保持固态。叙述了该材料的制备方法,讨论了实验条件对其制备性能的影响并对其进行了结构分析和DSC表征。结果表明,该材料具有较大的相变焓,拥有很好的开发价值和发展前途。

A New kind of solid phase change material(PCM) prepared in our laboratory has been studied in this paper.In this PCM,4-styrylpyridine has been taken as functional branches,with which the energy storage and energy release can be proceeded by phase transition between its crystal state and amorphous state.And polyvinyl alcohol(PVA) has been taken as a skeleton,which ensures the solid nature of PCM during the phase transition.The result shows that the new functional material prepared has great value in use and ...