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首页> 外文期刊>Nanotechnology >Form-stable phase change materials based on polyolefin elastomer and octadecylamine-functionalized graphene for thermal energy storage
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Form-stable phase change materials based on polyolefin elastomer and octadecylamine-functionalized graphene for thermal energy storage

机译：基于聚烯烃弹性体和十八烷基胺 - 官能化石墨烯的形成稳定的相变材料，用于热储能

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Latent heat storage using organic phase change materials (PCMs) have the potential to alleviate the contradiction between supply and demand in energy. However, the usage of PCMs is compromised by deficiencies including liquid leakage during liquidation and solidification, poor thermal conductivity and inferior thermal stability. Herein, we successfully fabricated a series of novel form-stable phase change materials (FSPCMs), using the polyolefin elastomer (POE) along with the octadecylamine-functionalized graphene (C-18-rGO) acted as the supporting networks and paraffin as the thermal energy storage material. The octadecyl chain incorporated on the surface of graphene not only prevented from the graphene aggregation, but also endowed excellent structural stability to the composite FSPCMs. Meanwhile, the toughness of the composites was further improved with the addition of POE. Paraffin was tightly imprisoned in the frameworks formed by POE and the C-18-rGO, resulting in no leakage even above their phase change temperature. As expected, the composite FSPCMs demonstrated reliable thermal stability and high thermal energy storage capacity. In particular, the composite FSPCMs was capable of absorbing or releasing stored thermal energy at a high rate, illustrating a great potential to be used as the effective thermal energy storage and thermal management systems.
机译：使用有机相变材料（PCM）潜热存储有可能减轻供需在能量供需之间的矛盾。然而，PCM的用法受到缺陷的缺陷，包括清洁过程中的液体泄漏，导热性差和较差的热稳定性。在此，我们成功地制造了一系列新型的形状稳定的相变材料（FSPCM），使用聚烯烃弹性体（POE）以及八月酰胺官能化石墨烯（C-18-RGO）作用为支持网络和石蜡作为热量储能材料。结合在石墨烯表面上的十八烷基链不仅可以防止石墨烯聚集，而且还赋予复合FSPCM的优异的结构稳定性。同时，随着POE的添加进一步改善了复合材料的韧性。石蜡在PoE和C-18-RGO形成的骨架中紧密地监禁，甚至在其相变温度高于它们的泄漏。如预期的那样，复合FSPCMS明确了可靠的热稳定性和高热能量存储容量。特别地，复合FSPCM能够以高速速率吸收或释放储存的热能，示出了用作有效热能存储和热管理系统的巨大电位。

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