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材料导报  2022, Vol. 36 Issue (24): 21090229-5    https://doi.org/10.11896/cldb.21090229
  高分子与聚合物基复合材料 |
石蜡相变微胶囊的热学性能与红外隐身性能
王信刚*, 刘世成, 雷为愉, 张晨阳
南昌大学工程建设学院,南昌 330031
Thermal Properties and Infrared Stealth Performance of Paraffin Phase Change Microcapsules
WANG Xingang*, LIU Shicheng, LEI Weiyu, ZHANG Chenyang
School of Infrastructure Engineering, Nanchang University, Nanchang 330031, China
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摘要 本研究以石蜡(PW)为芯材、三聚氰胺脲醛树脂(MUF)为壁材,采用原位聚合法制备石蜡相变微胶囊(PM)。通过ESEM、FTIR、DSC、红外热成像仪、热循环实验和破碎率测试与分析微胶囊的微观形貌、化学结构、储热性能、红外隐身性能和热稳定性。结果表明,PM1(芯壁比3 ∶2)和PM2(芯壁比2 ∶1)具有良好的储热性能,包封率分别为74.82%和75.12%,相变潜热分别为140.54 J/g和141.10 J/g。PM2具有良好的热稳定性,质量损失率为8.8%,破碎率为2.5%。掺PM2的环氧树脂具有良好的红外隐身性能,在80 ℃水浴加热12 min,PMER-40%(m微胶囊 ∶m环氧树脂=4 ∶6)的表面温度比环氧树脂降低了12.9 ℃。
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王信刚
刘世成
雷为愉
张晨阳
关键词:  相变微胶囊  热学性能  红外隐身  热成像    
Abstract: Paraffin phase change microcapsules were prepared by in-situ polymerization, using paraffin (PW) as core material and melamine urea for-maldehyde resin (MUF) as wall material. The micro morphology, chemical structure, heat storage performance, infrared stealth perfor-mance and thermal stability of microcapsules were analyzed by ESEM, FTIR, DSC, infrared thermal imager, thermal cycling test and fragmentation test. The results show that PM1 (core wall mass ratio 3 ∶ 2) and PM2 (core wall mass ratio 2 ∶ 1) have good heat storage performance, with encapsulation efficiency of 74.82% and 75.12%, respectively, and phase change latent heat of 140.54 J/g and 141.10 J/g, respectively. PM2 has good thermal stability, with the mass loss rate of 8.8% and the fragmentation rate of 2.5%. The epoxy resin doped with PM2 has good infrared stealth performance. When heated in water bath at 80 ℃ for 12 min, the surface temperature of PMER-40% (m(microcapsule) ∶m(epoxy resin)=4 ∶ 6 ) is 12.9 ℃ lower than that of epoxy resin.
Key words:  phase change microcapsules    thermal performance    infrared camouflage    thermography
发布日期:  2023-01-03
ZTFLH:  TB34  
基金资助: 国家自然科学基金(52062032;51972158);江西省主要学科学术和技术带头人-领军人才(20204BCJ22001);江西省自然科学基金重点项目(20212ACB204017)
通讯作者:  wxglab@126.com   
作者简介:  王信刚,南昌大学工程建设学院教授、博士研究生导师。2007年武汉理工大学建筑材料与工程专业博士毕业后到南昌大学工作至今,目前主要从事绿色先进建筑材料方面的研究工作。发表论文120余篇,包括Chemical Engineering Journal、Compo-sites Part B:Engineering、Composites Science and Technology、Journal of Colloid and Interface Science、Construction and Building Materials、Applied Clay Science、《硅酸盐学报》《材料研究学报》《建筑材料学报》等。
引用本文:    
王信刚, 刘世成, 雷为愉, 张晨阳. 石蜡相变微胶囊的热学性能与红外隐身性能[J]. 材料导报, 2022, 36(24): 21090229-5.
WANG Xingang, LIU Shicheng, LEI Weiyu, ZHANG Chenyang. Thermal Properties and Infrared Stealth Performance of Paraffin Phase Change Microcapsules. Materials Reports, 2022, 36(24): 21090229-5.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.21090229  或          http://www.mater-rep.com/CN/Y2022/V36/I24/21090229
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