Differential scanning calorimetry based evaluation of 3D printed PLA for phase change materials encapsulation or as container material of heat storage tanks

Energy Procedia Pub Date : 2019-03-01 DOI:10.1016/j.egypro.2019.02.088

Pavlos K. Pandis, Stamatoula Papaioannou, Maria K. Koukou, Michalis Gr. Vrachopoulos, Vassilis N. Stathopoulos

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引用次数: 17

Abstract

Three-D printed PLA (polylactid acid) was tested by means of differential scanning calorimetry after contact with commercially available organic phase change materials (PCMs) in order to be evaluated as an encapsulation or tank material in thermal storage systems. For a period of 40 days contact of 3D printed PLA specimens with two organic PCMs (A44 and A58) in liquid state, promising results were collected. In particular, insignificant mass uptake up to 0.012%/cm² for the case of A44 and 0.045%/cm² for A58 was observed. At the same time PLA crystallinity as calculated by differential scanning calorimetry data was found to improve over working time. These initial results therefore support the concept of structure on-demand encapsulation design by PLA 3D printing additive manufacturing of heat storage tanks for latent heat utilization of phase change materials.

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基于差示扫描量热法的3D打印聚乳酸相变材料封装或作为储热罐容器材料的评价

3d打印PLA(聚乳酸)与市售有机相变材料(PCMs)接触后，通过差示扫描量热法进行了测试，以评估其作为储热系统中的封装或储罐材料。3D打印PLA样品与两种液态有机PCMs (A44和A58)进行了为期40天的接触，获得了令人鼓舞的结果。尤其值得注意的是，A44和A58的质量吸收量分别为0.012%/cm2和0.045%/cm2。同时，差示扫描量热法计算的聚乳酸结晶度随着工作时间的延长而提高。因此，这些初步结果支持了通过PLA 3D打印增材制造相变材料潜热利用的储热罐按需封装设计的结构概念。

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Energy Procedia

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