Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (10): 2149.doi: 10.7503/cjcu20190253
• Physical Chemistry • Previous Articles Next Articles
CHEN Yuan,ZHAO Xuejing,LIANG Hongwei,WU Xiuwen(),ZHANG Jinlin
Received:
2019-04-30
Online:
2019-09-05
Published:
2019-09-05
Contact:
WU Xiuwen
E-mail:wuxw@cugb.edu.cn
Supported by:
CLC Number:
TrendMD:
CHEN Yuan,ZHAO Xuejing,LIANG Hongwei,WU Xiuwen,ZHANG Jinlin. Effect of Emulsification Process on the Thermal Properties of Stearic Acid Phase Change Microcapsules [J]. Chem. J. Chinese Universities, 2019, 40(10): 2149.
Sample No. | Emulsifier | wE(%) | Tm/℃ | ΔHm/(J·g-1) | ΔHSA/(J·g-1) | R(%) |
---|---|---|---|---|---|---|
1 | CTAB | 0.5 | 119.13 | 186.8 | 206.8 | 90.3 |
2 | CTAB | 0.7 | 122.24 | 23.95 | 206.8 | 11.6 |
3 | CTAB | 1 | 114.71 | 136.3 | 206.8 | 65.9 |
4 | CTAB | 2 | 109.27 | 170.2 | 206.8 | 82.3 |
5 | TX-100 | 0.5 | 112.36 | 73.65 | 206.8 | 36.1 |
6 | TX-100 | 0.7 | 61.64 | 33.08 | 206.8 | 17.0 |
7 | TX-100 | 1 | 67.71 | 72.38 | 206.8 | 35.0 |
8 | TX-100 | 2 | 61.25 | 139.9 | 206.8 | 67.6 |
9 | SDBS | 0.5 | 112.24 | 190.5 | 206.8 | 92.1 |
10 | SDBS | 0.7 | 113.36 | 144.4 | 206.8 | 69.8 |
11 | SDBS | 1 | 112.17 | 145.0 | 206.8 | 70.1 |
12 | SDBS | 2 | 115.43 | 169.2 | 206.8 | 81.8 |
Sample No. | Emulsifier | wE(%) | Tm/℃ | ΔHm/(J·g-1) | ΔHSA/(J·g-1) | R(%) |
---|---|---|---|---|---|---|
1 | CTAB | 0.5 | 119.13 | 186.8 | 206.8 | 90.3 |
2 | CTAB | 0.7 | 122.24 | 23.95 | 206.8 | 11.6 |
3 | CTAB | 1 | 114.71 | 136.3 | 206.8 | 65.9 |
4 | CTAB | 2 | 109.27 | 170.2 | 206.8 | 82.3 |
5 | TX-100 | 0.5 | 112.36 | 73.65 | 206.8 | 36.1 |
6 | TX-100 | 0.7 | 61.64 | 33.08 | 206.8 | 17.0 |
7 | TX-100 | 1 | 67.71 | 72.38 | 206.8 | 35.0 |
8 | TX-100 | 2 | 61.25 | 139.9 | 206.8 | 67.6 |
9 | SDBS | 0.5 | 112.24 | 190.5 | 206.8 | 92.1 |
10 | SDBS | 0.7 | 113.36 | 144.4 | 206.8 | 69.8 |
11 | SDBS | 1 | 112.17 | 145.0 | 206.8 | 70.1 |
12 | SDBS | 2 | 115.43 | 169.2 | 206.8 | 81.8 |
Fig.4 DSC curves of samples with different percentages of CTAB(A), TX-100(B) and SDBS(C) emulsifiers Mass fraction of emulsifier(%): a. 0.5; b. 0.7; c. 1; d. 2.
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