Preparation and thermal properties of palmitic acid/polyaniline/exfoliated graphite nanoplatelets form-stable phase change materials

2014 ◽  
Vol 115 ◽  
pp. 603-609 ◽  
Author(s):  
Ju-Lan Zeng ◽  
Shuang-Hao Zheng ◽  
Sai-Bo Yu ◽  
Fu-Rong Zhu ◽  
Juan Gan ◽  
...  
2013 ◽  
Vol 115 (2) ◽  
pp. 1133-1141 ◽  
Author(s):  
Fu-Rong Zhu ◽  
Ling Zhang ◽  
Ju-Lan Zeng ◽  
Ling Zhu ◽  
Zhen Zhu ◽  
...  

2015 ◽  
Vol 99 ◽  
pp. 189-195 ◽  
Author(s):  
Mahyar Silakhori ◽  
Hadi Fauzi ◽  
Mohammad R. Mahmoudian ◽  
Hendrik Simon Cornelis Metselaar ◽  
Teuku Meurah Indra Mahlia ◽  
...  

2009 ◽  
Vol 1218 ◽  
Author(s):  
Jinglei Xiang ◽  
Lawrence Drzal

AbstractComposite phase change materials (PCM) were prepared by mixing exfoliated graphite nanoplatelets (xGnP) into paraffin wax. The two types of graphite nanoplatelets that were investigated were xGnP-1 having thickness of 10 nm and a diameter of 1 um and xGnP-15 having the same thickness with a platelet diameter of 15 um. Direct casting and two roll milling were used to prepare samples. Scanning electron microscopy images show that the nanofillers disperse very well in paraffin matrix without noticeable agglomeration. Paraffin/xGnP-15 PCM consistently exhibited higher thermal conductivity than xGnP-1 PCM. The improvement in thermal conductivity was as high as 5 fold for xGnP-15 composites and 2 fold for xGnP-1 composites at 4 vol%. The aspect ratio, particle orientation, and interface density between the conductive particles and the polymer matrix were found to be the critical parameters in determining the conductivities of the resulting nanocomposites. The thermal physical properties of the nanocomposites were investigated by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). It was found that the latent heat of nanocomposites was not negatively affected in the presence of xGnP particles and the thermal stability improved.


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