Preparation and Thermal Transfer of Phase Change Microcapsule on the Fabric

2012 ◽  
Vol 490-495 ◽  
pp. 969-973
Author(s):  
Ying Hong Lou ◽  
Xiao Yan Liu ◽  
Xiao Mei Liu ◽  
Lei Cao ◽  
Lan Xi He ◽  
...  

In this paper, the microcapsule of PCM (phase change material) was prepared, and the temperature adjustment principle of PCM was introduced. From the SEM, the morphology of microcapsule was shown as circle and uniform, which accorded with the particle distribution. The DSC curve showed the PCM heat change process. In this paper, the thermal transfer of microcapsule on the fabric was also introduced which was very useful for smart fabric application.

2020 ◽  
Author(s):  
Kang Peng ◽  
Hongjie Wang ◽  
Pengfei wan ◽  
Jianwei Wang ◽  
Hua Luo ◽  
...  

Abstract Thermal energy storage technology plays a crucial role in the thermal management system. Clay based organic phase change material has considerable advantages in the application of thermal energy storage due to low cost and high energy storage capacity. However, the low thermal conductivity of clay, especially poor interfacial thermal transfer, limits its thermal energy storage efficiency. Herein, stearic acid/reduced graphene oxide modified montmorillonite composites (SA/RGO-MMT) were prepared by the vacuum impregnation of stearic acid into graphene modified montmorillonite matrix, which was obtained via the in situ reduction of graphene oxide on the surface of montmorillonite. Stearic acid is assembled in the porous structures of RGO-MMT with the physical interactions. SA/RGO-MMT possesses high melting enthalpy of 159 J/g, low extent of supercooling of 1.4 oC and excellent thermal reliability after 100 thermal cycling. Energy storage and release rates of SA/RGO-MMT were significantly improved due to the enhanced interfacial thermal transfer by graphene. Therefore, SA/RGO-MMT is a promising form-stable phase change material for applications in solar heat storage fields. The strategy in this study highlights the importance of enhancing interfacial thermal transfer for the efficient thermal energy storage materials.


2016 ◽  
Vol 70 (5) ◽  
pp. 573-579 ◽  
Author(s):  
Dalibor Jovanovic ◽  
Predrag Stojisavljevic ◽  
Sveta Cvetanovic ◽  
Dusan Rajic ◽  
Radovan Karkalic ◽  
...  

An organic Phase Change Material (PCM) possesses the ability to absorb and release large quantity of latent heat during a phase change process over a certain temperature range. This paper presents results related to thermo-physiological efficiency of special underwear with organic PCM integrated in textile through microencapsulation process. The efficiency of PCM underwear was tested through physiological examinations in simulated high-temperature conditions, where test-subjects were voluntarily exposed to heat stress tests wearing NBC protective suit with PCM underwear (option "THERM") and without it (option "NoTHERM"). It can be concluded that wearing a PCM textile clothes under NBC protective suit, during physical activity in high-tempearture conditions, reduces sweating and alleviates heat stress manifested by increased core and skin temperature and heart rate values.


2018 ◽  
Vol 49 (6) ◽  
pp. 509-528 ◽  
Author(s):  
Orawan Aumporn ◽  
Belkacem Zeghmati ◽  
Xavier Chesneau ◽  
Serm Janjai

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