镍泡沫定型相变变材料制备与性能研究  

Study on the Preparation and Performance of Nickel Foam Shaped Phase Change Materials

作　　者：刘琦 陈立飞[1,2] 邴乃慈 于伟[1,2] LIU Qi;CHEN Lifei;BING Naici;YU Wei(School of Energy and Materials,Shanghai Polytechnic University,Shanghai 201209,China;Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai 201209,China)

机构地区：[1]上海第二工业大学能源与材料学院,上海201209 [2]上海先进热功能材料工程技术研究中心,上海201209

出　　处：《上海第二工业大学学报》2022年第2期158-163,共6页Journal of Shanghai Polytechnic University

摘　　要：以石蜡(PA)和正十八烷(C18)为相变材料,以多孔镍泡沫(NF)为支撑材料,制备了PA/NF、C18/NF复合相变材料。NF作为载体,吸附相变材料,并将其限制在多孔NF的交联空间网络结构中,防止其泄露。因为NF具有大量的孔道结构和丰富的3D立体网络金属骨架,可以有效地提高复合相变材料的导热系数,以孔径密度为110 PPI的NF为载体的C18/NF复合材料的热导率值最高达到1.44 W/(m·K),比纯C18的热导率高318%,其相变潜热值最高值为131.08 J/g,且C18/110 PPI NF复合相变材料形态的稳定性最好。The composite phase change materials were prepared by using porous nickel foam(NF)as the carrier,paraffin(PA)and n-octadecane(C18)as the phase change material.NF as carrier adsorbed phase change material and confined it in the interconnected networks structures of NF to avoid the leak of phase change material.NF can greatly improve the thermal conductivity of composite phase change materials due to its porous structures and 3D network metal skeleton.When 110 PPI NF as carrier,the thermal conductivity of C18/NF is 1.44 W/(m·K),which is 318%higher than that of C18.The latent heat of phase change of C18/NF is 131.08 J/g.The structural stability of C18/110 PPI NF is the best.

关 键 词：相变材料 热导率 多孔镍泡沫 石蜡 正十八烷 

分 类 号：TB34[一般工业技术—材料科学与工程]