Seeking new applications of carbon nanotubes (CNTs) will be important since large-scale production has made them available in many applications. Herein, aggregated CNTs (A-CNTs) with interwoven pores were prepared for shape-stabilized phase change materials (PCMs). Owning to the capillary force from the pores, paraffin was readily encapsulated into A-CNTs, and formed a new kind of shape-stabilized PCMs. As-prepared paraffin/A-CNT composites had optimal paraffin loading approaching 88 wt % and offered a storage capacity of 172.14 J g^–1 that exceeded the vale based on mixing rule. To confirm the structure effectiveness, A-CNTs were dispersed into random nanotubes; as-formed composite PCMs displayed obviously reduced loading and storage capacities. The enhanced performance was ascribed to the effective encapsulation of paraffin in the interwoven pores of A-CNTs. Moreover, the composites with improved thermal conductivities were attained and displayed enhanced thermal-storage response. The results indicated that as-prepared composites were promising candidates for thermal management systems.

中文翻译：

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碳纳米管团聚体中石蜡的有效封装，用于形状稳定的新型相变材料，具有增强的储热能力和稳定性

寻求碳纳米管（CNT）的新应用将很重要，因为大规模生产已使其可用于许多应用中。在此，制备具有交织的孔的聚集的CNT（A-CNT）以用于形状稳定的相变材料（PCM）。由于来自毛细孔的毛细作用力，石蜡很容易被包封在A-CNT中，并形成了一种新型的形状稳定的PCM。制备后的石蜡/ A-CNT复合材料的最佳石蜡负载量接近88 wt％，存储容量为172.14 J g ^–1根据混合规则超出了谷底。为了确认结构有效性，将A-CNT分散在无规纳米管中。成型的复合PCM明显降低了装载和存储容量。性能的提高归因于石蜡在A-CNT交织孔中的有效包封。此外，获得了具有改善的热导率的复合材料并显示出增强的储热响应。结果表明，所制备的复合材料是热管理系统的有希望的候选者。