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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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石蜡/不同粒径膨胀石墨复合相变储热材料的制备和性能
Keywords: 复合材料,大小粒径膨胀石墨,石蜡,镶嵌结构,相变储热材料
Abstract:
？用熔融共混法制备石蜡/不同粒径膨胀石墨复合相变储热材料,对样品进行xrd、ft-ir、sem、dsc和lfa表征分析,研究了不同粒径膨胀石墨的质量比例对复合相变储热材料性能的影响。结果表明:随着小粒径膨胀石墨含量的增加,复合相变储热材料的热扩散系数先增大后减小。在大小粒径膨胀石墨质量比例为9∶1时,石蜡充分利用了大小粒径膨胀石墨的镶嵌式空间结构,复合相变材料的热扩散系数为1.964×10-6m2/s,比纯石蜡提高了22倍,相变潜热为144.2j/g。
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