Highly efficient photothermal conversion capric acid phase change microcapsule: Silicon carbide modified melamine urea formaldehyde

2021 ◽  
Vol 582 ◽  
pp. 30-40 ◽  
Author(s):  
Xingang Wang ◽  
Chenyang Zhang ◽  
Kai Wang ◽  
Yuqing Huang ◽  
Zhongfa Chen
Keyword(s):  
Silicon Carbide ◽  
Phase Change ◽  
Urea Formaldehyde ◽  
Capric Acid ◽  
Photothermal Conversion ◽  
Highly Efficient

scholarly journals Preparation and Properties of a Composite Phase Change Energy Storage Gypsum Board Based on Capric Acid-Paraffin/Expanded Graphite

ACS Omega ◽  
2021 ◽  
Vol 6 (9) ◽  
pp. 6144-6152
Author(s):  
Hua Fei ◽  
Linya Wang ◽  
Qian He ◽  
Wenqing Du ◽  
Qingjun Gu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Expanded Graphite ◽  
Capric Acid ◽  
Gypsum Board

Preparation and Characterization of Hexadecane Microcapsule Phase Change Materials by In Situ Polymerization

2013 ◽  
Vol 815 ◽  
pp. 367-370 ◽  
Author(s):  
Xiao Qiu Song ◽  
Yue Xia Li ◽  
Jing Wen Wang
Keyword(s):  
Particle Size ◽  
Phase Change ◽  
Phase Change Materials ◽  
In Situ Polymerization ◽  
Urea Formaldehyde ◽  
Agitation Speed ◽  
Urea Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Mass Ratio

Hexadecane microcapsule phase change materials were prepared by the in-situ polymerization method using hexadecane as core materials, urea-formaldehyde resin and urea-formaldehyde resin modified with melamine as shell materials respectively. Effect of melamine on the properties of microcapsules was studied by FTIR, biomicroscopy (UBM), TGA and HPLC. The influences of system concentration, agitation speed and mass ratio of wall to core were also investigated. The results indicated that hexadecane was successfully coated by the two types of shell materials. The addition of melamine into the urea-formaldehyde resin microcapsule reduced microcapsule particle size and microencapsulation efficiency. The influences of factors such as system concentration, agitation speed and mass ratio of wall to core to different wall materials microcapsules presented different variety trends of the microcapsule particle size.

Highly Efficient Photothermal Conversion and Water Transport During Solar Evaporation Enabled by Amorphous Hollow Multishelled Nanocomposites

2021 ◽  
pp. 2107400
Author(s):  
Xuanbo Chen ◽  
Nailiang Yang ◽  
Yanlei Wang ◽  
Hongyan He ◽  
Jiangyan Wang ◽  
...  
Keyword(s):  
Water Transport ◽  
Photothermal Conversion ◽  
Highly Efficient

scholarly journals The Effect of Channel Length on Phase Transition of Phase Change Memory

2018 ◽  
Vol 7 (3.11) ◽  
pp. 25
Author(s):  
M S. A.Aziz ◽  
F H. M.Fauzi ◽  
Z Mohamad ◽  
R I. Alip
Keyword(s):  
Phase Transition ◽  
Silicon Carbide ◽  
Phase Change ◽  
Pulse Width ◽  
Crystalline State ◽  
Phase Change Memory ◽  
Amorphous State ◽  
Channel Length ◽  
Change Memory

The phase transition of germanium antimony tellurium (GST) and the temperature of GST were investigated using COMSOL Multiphysic 5.0 software. Silicon carbide was using as a heater layer in the separate heater structure of PCM. These simulations have a different channel of SiC. The temperature of GST and the phase transition of GST can be obtained from the simulation. From the simulation, the 300 nm channel of SiC can change the GST from amorphous to crystalline state at 0.7V with 100 ns pulse width. The 800 nm channel of SiC can change the GST from amorphous to crystalline state at 1.1V with 100 ns pulse width. Results demonstrated that the channel of SIC can affecting the temperature of GST and the GST changes from amorphous state to crystalline state. As the channel of SiC decreased, the temperature of GST was increased and the GST was change to crystalline state quickly.  

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