scholarly journals Mortars based in different binders with incorporation of phase-change materials: Physical and mechanical properties

2015 ◽  
Vol 19 (10) ◽  
pp. 1216-1233 ◽  
Author(s):  
Sandra Cunha ◽  
José Aguiar ◽  
Victor Ferreira ◽  
António Tadeu
RSC Advances ◽  
2018 ◽  
Vol 8 (48) ◽  
pp. 27438-27447 ◽  
Author(s):  
Vasiliki Chalkia ◽  
Nikolaos Tachos ◽  
Pavlos K. Pandis ◽  
Aris Giannakas ◽  
Maria K. Koukou ◽  
...  

Organic PCMs affect HDPE and PP mechanical properties. HDPE strength is remarkably partly restored by the homogeneous distribution of absorbed PCM.


Author(s):  
D. Bajare ◽  
J. Kazjonovs ◽  
A. Korjakins

Two types of PCM were investigated for use in phase change gypsum boards: salt hydrate and paraffin. The transition temperatures, or melting temperatures, of the PCM is near to standard or suggested room temperatures 20-21 °C for heating-dominated climates or 25-27 °C for cooling-dominated climates. Phase change gypsum boards were produced by using three different methods: simple immersion for 1 hour and direct incorporation of raw and microencapsulated PCMs in 5 and 10% of composition mass. PCM were tested and the effects of energy conservation of PCM gypsum boards were determined. Also some physical and mechanical properties were determined to investigate the effect of PCM addition to gypsum boards.


2012 ◽  
Vol 627 ◽  
pp. 85-89 ◽  
Author(s):  
Hai Xia Zhang ◽  
Xi Chang Zhang

To analyze the structure and performance of Outlast acrylic fiber, the fiber structure was observed respectively by FTIR spectra, X-ray diffraction and scanning electron microscope, the normal physical and mechanical properties were measured, and the thermo-regulated performance was investigated by differential scanning calorimeter, thermal gravimeter analysis and step cooling test. The results indicate that the structure and normal physical and mechanical properties of Outlast acrylic fiber are slightly different from that of normal acrylic fiber. Both the melting peak and crystallization peak of Outlast acrylic fiber are single peaks, and the phase change temperature range is applicable and the phase change enthalpy is high. The decomposition temperature of Outlast acrylic fiber is around 311.85°C. The cooling velocity of Outlast acrylic fiber decreases exponentially with the increase in time, and the thermo-regulated ability of Outlast acrylic fiber is better than that of normal acrylic fiber.


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