聚乙二醇/膨胀石墨/聚丙烯复合相变材料的制备及表征

纺织学报 ›› 2014, Vol. 35 ›› Issue (3): 13-0.

聚乙二醇/膨胀石墨/聚丙烯复合相变材料的制备及表征

张倩倩¹,孙卫国¹,张迎晨²

1. 西安工程大学纺织与材料学院
2. 中原工学院纺织学院

收稿日期:2013-04-09 修回日期:2013-09-02 出版日期:2014-03-15 发布日期:2014-03-11

Preparation and Properties of composite poltethylene glycol∕expanded graphite∕polypropylene phase-change material

Received:2013-04-09 Revised:2013-09-02 Online:2014-03-15 Published:2014-03-11

摘要/Abstract

摘要： 以膨胀石墨（EG）为基体，聚乙二醇（PEG）为相变储热介质，利用EG对PEG良好的吸附性能，制备出了PEG/EG/聚丙烯（PP）复合相变材料。采用傅立叶变换红外光谱（FT-IR）、扫描电镜（SEM）、差示扫描量热分析（DSC）等方法对复合相变材料的结构、形貌和热性能进行了表征。结果表明：EG吸附PEG后仍然保持原有疏松多孔的形态，PEG被EG均匀吸附。由于毛细管作用力和表面的物理化学吸附作用,PEG在固-液相变时,很难从微孔中渗透出来。复合相变材料的流变，形态和热性能较好时PEG/EG/PP的比例为73.2/1.8/25。

关键词: 聚乙二醇, 膨胀石墨, 聚丙烯, 相变材料

Abstract: Expanded graphite(EG) and polyethylene glycol(PEG) were chose as a matrix and phase change material ,PEG/EG /polypropylene(PP) composite phase change thermal energy storage material was prepared to utilize the characteristic that EG can adsorb PEG well.The structure , morphology, and thermaI properties of composite phase change material were then characterized by means of FT-IR,SEM and DSC.It is shown that PEG can be uniformIy absorbed into the pore network of EG，that EG remains its vermiform structure in PCMs. Because of the effect of capillary force and surface tension force, polyethylene glycol was very difficult to leak out from the porous during solid-liquid phase change happened. The good rheological,morphological and thermal properties obtained when the ratio of PEG/EG/PP was 73.2/1.8/25.

Key words: polyethylene glycol, expanded graphite, polypropyoene, phase-change material

中图分类号:

中图分类号: TB34

张倩倩孙卫国张迎晨. 聚乙二醇/膨胀石墨/聚丙烯复合相变材料的制备及表征[J]. 纺织学报, 2014, 35(3): 13-0.

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