Abstract Coaxial electrospinning of poly(ethylene glycol) (PEG)/polyamide 6 (PA6) was successfully used in development of nanofibrous thermal energy storage (TES) material. Halloysite nanotubes (HNTs) were introduced into the core/shell structured TES materials at various concentrations (0.5, 1, 3 and 5 wt. %). Surface activation of HNT was also conducted by piranha etching in order to increase the affinity between piranha-etched nanotubes (HNT-P) and PEG. The core/shell structured materials were characterized using SEM, FTIR, TGA, DSC, tensile and thermal cyclic tests. With incorporation of 3 wt. % HNT-P into the core/shell nanofibers, tensile modulus and latent heat of melting values were increased by 25 % and 21 %, respectively. Additionally, PEG encapsulation efficiency of the neat core/shell nanofibers was increased from 78 % to 96 % with 3 wt. % HNT-P addition. The neat core/shell samples preserved 88 %, whereas 3 wt. % HNT and HNT-P added nanofibrous samples preserved 94 % of their initial melting enthalpies.

中文翻译：

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埃洛石纳米管对同轴电纺聚乙二醇/聚酰胺6纳米纤维热储能材料多功能性能的影响

摘要 聚乙二醇（PEG）/聚酰胺6（PA6）的同轴静电纺丝成功地用于纳米纤维热能储存（TES）材料的开发。埃洛石纳米管 (HNT) 以各种浓度（0.5、1、3 和 5 重量%）被引入到核/壳结构的 TES 材料中。HNT 的表面活化也通过食人鱼蚀刻进行，以增加食人鱼蚀刻的纳米管 (HNT-P) 和 PEG 之间的亲和力。使用 SEM、FTIR、TGA、DSC、拉伸和热循环测试表征核/壳结构材料。加入 3 wt. % HNT-P 进入核/壳纳米纤维，拉伸模量和熔化潜热值分别增加了 25% 和 21%。此外，纯核/壳纳米纤维的 PEG 包封效率从 78% 增加到 96%，重量为 3%。% HNT-P 添加量。纯净的核/壳样品保留了 88%，而 3%。添加了 % HNT 和 HNT-P 的纳米纤维样品保留了其初始熔化焓的 94%。