Polyethylene glycol infused acid-etched halloysite nanotubes for melt-spun polyamide-based composite phase change fibers
Polyethylene glycol infused acid-etched halloysite nanotubes for melt-spun polyamide-based composite phase change fibers
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用于熔纺聚酰胺基复合相变纤维的聚乙二醇注入酸蚀埃洛石纳米管
DOI：
10.1016/j.clay.2019.105249
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发表时间：
2019-12
影响因子：
5.6
通讯作者：
Meifang Zhu
中科院分区：
文献类型：
--
作者：
Meifang Zhu;Jialiang Zhou;Zhang Yangkai;Mugaanire Tendo Innocent;Meifang Zhu
摘要无机纳米管独特的管状结构和形貌使其成为非常有用的储能支撑材料。将这些性能与传统的有机相变材料（PCM）以复合材料的形式结合起来，可以解决PCM中存在的储能和热稳定性问题。在此，制备酸蚀埃洛石纳米管（A-HNTs）并用作无机支撑材料来封装聚乙二醇（PEG）。N2物理吸附结果表明，酸蚀前后A-HNTs的比表面积和孔容分别从45.4m2/g、0.243cm ~ 3/g增加到253.4m2/g和0.621cm ~ 3/g，有效PEG负载量从复合PCM的50质量%增加到70质量%。PEG/A-HNTs复合相变材料的相变潜热为112 J/g（PEG/HNTs为70.64 J/g），PEG/A-HNTs复合相变材料的相变潜热为112 J/g。蓄热和放热过程的调温时间分别>500 s和491 s. 100次热循环的DSC热分析和TGA结果表明，PEG/A-HNTs复合材料具有良好的热稳定性和热稳定性，可用于高温熔融纺丝制备相变纤维。PA 6/PEG/A-HNTs的热焓、热调节时间和相对温差分别达到13.57 J/g、206 s和3.2 °C。
Abstract The unique tubular structure and morphology of inorganic nanotubes makes them very useful supporting materials for thermal energy storage. Lending these properties in the form of composites together with traditional organic phase change materials (PCMs) can solve the existing energy storage and thermal stability problems in PCMs. Here, the acid-etching halloysite nanotubes (A-HNTs) are prepared and employed as inorganic supporting materials to encapsulate polyethylene glycol (PEG). The N2 physisorption results indicated that the specific surface area and pore volume of A-HNTs increased from 45.4m2/g, 0.243cm3/g to 253.4 m2/g and 0.621 cm3/g before and after acid etching leading to an effective PEG load increase from 50 mass% to 70 mass% of composite PCMs. This increasing encapsulation capacity of PEG had a beneficial effect on the phase change performances and the latent heat of the prepared PEG/A-HNTs composite PCMs which reached 112 J/g (as compared to 70.64 J/g of PEG/HNTs). The temperature- regulating time of heat storage and release process were >500 s and 491 s respectively. Further, the DSC thermograms with 100 thermal cycles and TGA results demonstrated that the PEG/A-HNTs composites had an excellent thermal reliability and stability for preparing phase-change fibers by high-temperature melt spinning. The thermal enthalpy, thermal regulating time and relative temperature difference of resultant PA6/PEG/A-HNTs reached 13.57 J/g, 206 s and 3.2 °C, respectively.
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用于热管理的基于合成梳状聚（丙烯腈-乙二醇）的具有高相变焓的形状稳定相变材料
DOI：
10.1007/s11426-017-9119-2
发表时间：
2017-10
期刊：
Science China Chemistry
影响因子：
--
作者：
Wei Chen;Hengxue Xiang;Yunmeng Jiang;Sayed Yaseen Rashdi;Meifang Zhu
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Meifang Zhu
影响因子：
15
作者：
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通讯作者：
Xia, Younan
影响因子：
4.6
作者：
Han, S;Kim, C;Kwon, D
通讯作者：
Kwon, D
影响因子：
10.4
作者：
Yibing Cai;Lei Song;Qingliang He;Dandan Yang;Yuan Hu
通讯作者：
Yibing Cai;Lei Song;Qingliang He;Dandan Yang;Yuan Hu
DOI：
10.1016/j.colsurfa.2012.08.003
发表时间：
2012-11
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
Yi Zhang;Liangjie Fu;Huaming Yang
通讯作者：
Yi Zhang;Liangjie Fu;Huaming Yang