摘要
以棕榈酸-十六醇低共熔物为相变材料,膨胀珍珠岩为基体,采用真空浸渗的方法,制备出棕榈酸-十六醇/膨胀珍珠岩复合相变储热材料。采用ESEM、FTIR、DSC、熔化凝固过程分析对该复合材料进行了结构和性能研究。结果表明:棕榈酸-十六醇被有效地包封在膨胀珍珠岩内,与膨胀珍珠岩基体的化学相容性良好;该复合材料具有较高的相变潜热和较好的热稳定性,并且通过在复合材料中添加10%(质量分数)石墨,改善了材料的导热性能。
Palmitic acid-hexadecanol/expanded perlite composite phase change materials for latent heat storage was prepared by vacuum infiltration method using the eutectic mixture of palmitic acid and hexadecanol as phase change material, expanded perlite as skeleton. The structure and properties of the composite were studied by ESEM, FTIR, DSC and the test of melting and solidification process. The results have shown that the palmitic aeid-hexadeeanol is well sealed into the inner pore of porous expanded perlite, and has good chemical compatibility with expanded perlite; and that the composite has high latent heat and steady thermal performce, and the thermal conductivity of the composite is obviously increased by adding graphite 10% （mass fraction） graphite.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第11期1475-1479,共5页
Acta Energiae Solaris Sinica
基金
山东省科技计划项目(2006GG2203027)
山东省中青年科学家科研奖励基金项目(2008BS04033)
关键词
相变材料
棕榈酸
十六醇
膨胀珍珠岩
phase change materials
palmitic acid
hexadecanol
expanded perlite
