TY - JOUR
T1 - Thermal Property Enhancement of Paraffin-Wax-Based Hydroxyl-Terminated Polybutadiene Binder with a Novel NanoSiO2-Expanded Graphite-PW Ternary Form-Stable Phase Change Material
AU - Gao, Xia
AU - Zhao, Tianbo
AU - Luo, Guan
AU - Zheng, Baohui
AU - Huang, Hui
AU - Han, Xue
AU - Ma, Rui
AU - Chai, Yuqiao
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/3/15
Y1 - 2018/3/15
N2 - High volume change and low thermal conductivity will impede the application of paraffin wax (PW). Expanded graphite (EG) is one of the best materials to shape-stabilize PW and improve its thermal conductivity. NanoSiO2 is also considered as a good supporting material of PW. Herein, a novel nanoSiO2-EG-PW ternary form-stable phase change material (FSPCM) with enhanced thermal properties was reported. Subsequently, the effect of nanoSiO2-EG-PW with different amounts on the chemical composition, morphology, and thermal properties of PW-based hydroxyl-terminated polybutadiene (HTPB) was investigated using Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermal gravimetric analyzer (TGA), thermal cycling test, and thermal conductivity, respectively. These results indicated that nanoSiO2-EG-PW could effectively shape-stabilize PW in the HTPB matrix without chemical reaction. The thermal conductivity of nanoSiO2-EG-PW was improved from 0.303 W·m-1·K-1 to 0.602 W·m-1·K-1, compared with that of PW. The nanoSiO2-EG-PW/PW/HTPB composites kept high latent heat capacity, delayed melting temperature, and good thermal reliability after 500-thermal-cycling. Moreover, the thermal stability and thermal conductivity of the composites increased, with the increasing content of nanoSiO2-EG-PW. Therefore, these materials have a potential application in high-temperature phase change material (PCM) and HTPB binder.
AB - High volume change and low thermal conductivity will impede the application of paraffin wax (PW). Expanded graphite (EG) is one of the best materials to shape-stabilize PW and improve its thermal conductivity. NanoSiO2 is also considered as a good supporting material of PW. Herein, a novel nanoSiO2-EG-PW ternary form-stable phase change material (FSPCM) with enhanced thermal properties was reported. Subsequently, the effect of nanoSiO2-EG-PW with different amounts on the chemical composition, morphology, and thermal properties of PW-based hydroxyl-terminated polybutadiene (HTPB) was investigated using Fourier transformed infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermal gravimetric analyzer (TGA), thermal cycling test, and thermal conductivity, respectively. These results indicated that nanoSiO2-EG-PW could effectively shape-stabilize PW in the HTPB matrix without chemical reaction. The thermal conductivity of nanoSiO2-EG-PW was improved from 0.303 W·m-1·K-1 to 0.602 W·m-1·K-1, compared with that of PW. The nanoSiO2-EG-PW/PW/HTPB composites kept high latent heat capacity, delayed melting temperature, and good thermal reliability after 500-thermal-cycling. Moreover, the thermal stability and thermal conductivity of the composites increased, with the increasing content of nanoSiO2-EG-PW. Therefore, these materials have a potential application in high-temperature phase change material (PCM) and HTPB binder.
UR - http://www.scopus.com/inward/record.url?scp=85044112219&partnerID=8YFLogxK
U2 - 10.1021/acs.energyfuels.7b03856
DO - 10.1021/acs.energyfuels.7b03856
M3 - Article
AN - SCOPUS:85044112219
SN - 0887-0624
VL - 32
SP - 4016
EP - 4024
JO - Energy and Fuels
JF - Energy and Fuels
IS - 3
ER -