利用膨胀石墨孔隙结构的吸附性能,制备了石蜡/膨胀石墨相变储能复合材料,用差示扫描热量法研究了其的热性能.结果表明:石蜡/膨胀石墨相变储能复合材料的相变温度不随石蜡含量的改变而变化,但其相变潜热随着石蜡含量的增加而增加、导热性能却随着石蜡含量的增加而小.膨胀石墨的多孔结构对石蜡有很好的吸附性能,石蜡在固-液相变时,末见有液态石蜡的渗出.
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