相变/石墨泡沫复合材料的制备与表征
Preparation and characterization of phase transition/graphite foam composite materials.
作者信息
Yu Jia, Tang ChenLong, Yu ZhiChao
机构信息
College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin - China.
出版信息
J Appl Biomater Funct Mater. 2016 Jul 4;14 Suppl 1:e35-40. doi: 10.5301/jabfm.5000311.
BACKGROUND
Phase transition/graphite foam (PCM/GF) composite materials are a kind of composite materials that fill graphite foam with phase change materials.
METHODS
In this paper, graphite foam was prepared firstly by the soft template method, the heat conductivity of which at room temperature is 5.44 W/(m∙K). Then, four phase change materials including eicosane, acetamide, xylitol, and erythritol were chosen for filling into the prepared graphite foam to obtain PCM/GF composite materials.
RESULTS AND CONCLUSIONS
Among the four kinds of materials, erythritol composite material has the highest melting point (118.5°C) and the highest enthalpy of fusion (266.3J/g), weight loss ratios of xylitol composite material after ten cycles is the lowest (2.1%), the compressive strength of xylitol composite material is the highest (9.08 MPa) and that of eicosane composite material is the lowest (3.32 MPa).
背景
相变材料/石墨泡沫（PCM/GF）复合材料是一种将相变材料填充到石墨泡沫中的复合材料。
方法
本文首先通过软模板法制备石墨泡沫，其室温下的热导率为5.44W/(m∙K)。然后，选择包括正二十烷、乙酰胺、木糖醇和赤藓糖醇在内的四种相变材料填充到制备好的石墨泡沫中，以获得PCM/GF复合材料。
结果与结论
在这四种材料中，赤藓糖醇复合材料具有最高熔点（118.5°C）和最高熔化焓（266.3J/g），木糖醇复合材料经过十次循环后的失重率最低（2.1%），木糖醇复合材料的抗压强度最高（9.08MPa），而正二十烷复合材料的抗压强度最低（3.32MPa）。
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