Air-dried, high-density graphene hybrid aerogels for phase change composites with exceptional thermal conductivity and shape stability

2016 ◽  
Vol 4 (46) ◽  
pp. 18067-18074 ◽  
Author(s):  
Jing Yang ◽  
Xiaofeng Li ◽  
Shuang Han ◽  
Yiting Zhang ◽  
Peng Min ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Phase Change ◽  
High Density ◽  
Shape Stability ◽  
Phase Change Composites ◽  
Hybrid Aerogels

Air-dried, high-density graphene hybrid aerogels are fabricated for phase change composites with exceptional thermal conductivity and shape stability.

scholarly journals Vertically aligned carbon fibers as supporting scaffolds for phase change composites with anisotropic thermal conductivity and good shape stability

2019 ◽  
Vol 7 (9) ◽  
pp. 4934-4940 ◽  
Author(s):  
Nan Sheng ◽  
Ruijie Zhu ◽  
Kaixin Dong ◽  
Takahiro Nomura ◽  
Chunyu Zhu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Phase Change ◽  
Carbon Fibers ◽  
Shape Stability ◽  
Good Shape ◽  
Anisotropic Thermal Conductivity ◽  
Thermally Conductive ◽  
Vertically Aligned ◽  
Phase Change Composites

Anisotropic thermally conductive and shape-stabilized phase change composites were prepared with vertically aligned carbon fibers as supporting scaffolds.

Fabrication of temperature-regulating functional fabric based on n-octadecane/SWCNTs composite phase change material

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wei Zhang ◽  
Jiali Weng ◽  
Shang Hao ◽  
Yuan Xie ◽  
Yonggui Li
Keyword(s):  
Thermal Conductivity ◽  
Phase Change ◽  
Latent Heat ◽  
Cotton Fabric ◽  
Screen Printing ◽  
Scanning Calorimetry ◽  
Shape Stability ◽  
Content Type ◽  
Photothermal Conversion ◽  
Fabric Surface

Purpose Fabrics with photothermal conversion functions were developed based on the introduction of shape stable composite phase change materials (CPCMs). Design/methodology/approach Acidified single-walled carbon nanotubes (SWCNTs) were selected as support material to prepare CPCMs with n-octadecane to improve the thermal conductivity and shape stability. The CPCMs were finished onto the surface of cotton fabric through the coating and screen-printing method. The chemical properties of CPCMs were characterized by Fourier transform infrared spectrometer, XRD and differential scanning calorimetry (DSC). The shape stability and thermal conductivity were also evaluated. In addition, the photothermal conversion and temperature-regulating performance of the finished fabrics were analyzed. Findings When the addition amount of acidified SWCNTs are 14% to the mass of n-octadecane, the best shape stability of CPCMs is obtained. DSC analysis shows that the latent heat energy storage of CPCMs is as high as 183.1 J/g. The thermal conductivity is increased by 84.4% compared with that of n-octadecane. The temperature-regulating fabrics coated with CPCMs have good photothermal conversion properties. Research limitations/implications CPCMs with high latent heat properties are applied to the fabric surface through screen printing technology, which not only gives the fabric the photothermal conversion performance but also reflects the design of personalized patterns. Practical implications CPCMs and polydimethylsiloxane (PDMS) are mixed to make printing paste and printed cotton fabric with temperature-regulating functional is developed. Originality/value SWCNTs and n-octadecane are composited to prepare CPCMs with excellent thermal properties, which can be mixed with PDMS to make printing paste without adding other pastes. The fabric is screen-printed to obtain a personalized pattern and can be given a thermoregulatory function.

scholarly journals Superhydrophobic Copper Foam Supported Phase Change Composites with High Thermal Conductivity for Energy Storage

2018 ◽  
Vol 21 (3) ◽  
Author(s):  
Weidong Liang ◽  
Hongyu Zhu ◽  
Ran Wang ◽  
Chengjun Wang ◽  
Zhaoqi Zhu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Energy Storage ◽  
Phase Change ◽  
High Thermal Conductivity ◽  
Copper Foam ◽  
Phase Change Composites

Leakage-proof phase change composites supported by biomass carbon aerogels from succulents

2018 ◽  
Vol 20 (8) ◽  
pp. 1858-1865 ◽  
Author(s):  
Yanhong Wei ◽  
Juanjuan Li ◽  
Furong Sun ◽  
Jinrong Wu ◽  
Lijuan Zhao
Keyword(s):  
Thermal Conductivity ◽  
Phase Change ◽  
Organic Phase ◽  
Phase Change Materials ◽  
Carbon Aerogels ◽  
Biomass Carbon ◽  
Low Thermal Conductivity ◽  
Practical Applications ◽  
Phase Change Composites

The practical applications of organic phase change materials (PCM) are greatly limited, due to their leakage in the melted state and unacceptably low thermal conductivity.

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