改性石蜡制备及低红外发射率研究  

Preparation and Characterization Study of Modified Paraffin with Low Infrared Emissivity

作　　者：李九芬[1] 孙翠玲[1] 徐国跃[1] 王雅君[1] 陈慧敏[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《材料导报》2011年第12期70-73,共4页Materials Reports

基　　金：航空科学基金项目(2009ZA52013);国家自然科学基金(90505008)

摘　　要：采用丙烯酸接枝石蜡与苯胺酰胺化的方法制备改性石蜡,以此为黏合剂,Al粉为填料,制备出发射率可调的复合相变材料,并对复合相变材料的结构、热性能、控温效果和红外发射率进行了表征。结果表明,改性石蜡的相变温度提高了16.3%,相变潜热提高近60%,控温效果提高了39.3%,添加40%Al粉的复合相变材料的红外发射率可降至最低。Aniline was used to react with paraffin-AA to prepare acylamide-paraffin-AA. Through adding A1 powder in acylamide-paraffin-AA, the composite phase change materials（PCMs） with different infrared emissivity（8-14μm） were obtained. The structure, thermal properties, controlling temperature effect and the infrared emissivity （8- 14μm） of the composite PCMs were systematically investigated. The results indicate that acylamide-paraffin-AA＇s phase change temperature is widened 16.3 %, its latent heat is improved to 60 % more than before, and controlling temperature effect is promoted 39. 3%. The infrared emissivity of the composite PCMs with 40wt% Al powder can reach lowest.

关 键 词：石蜡 改性石蜡 相变控温 低发射率 

分 类 号：TN213[电子电信—物理电子学]