Polysiloxane Bonded Silica Aerogel with Enhanced Thermal Insulation and Strength
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Experimental Procedure
2.2.1. Preparation of the PHMS/VTES Complex
2.2.2. Preparation of the Wet Gels
2.2.3. Post-Processing of the Composite Aerogels
2.3. Characterizations
3. Results
3.1. Microscopic Morphology and Structural Characteristics of the Composite Aerogels
3.1.1. Chemical Composition and Reaction Mechanism
3.1.2. Microscopic Morphology
3.1.3. Pore Structure
3.2. Properties of the Composite Aerogels
3.2.1. Thermal Properties
3.2.2. Mechanical Properties
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Samples | PHMS * | VTES | TEOS |
---|---|---|---|
P/V-SiO2-1 | 1.0 | 0.3 | 3.5 |
P/V-SiO2-2 | 1.0 | 0.3 | 5.0 |
P/V-SiO2-3 | 1.0 | 0.3 | 6.5 |
P/V-SiO2-4 | 1.0 | 0.3 | 8.0 |
Samples | BET Specific Surface Area (m2/g) | Pore Volume (cm3/g) | Pore Size (nm) |
---|---|---|---|
P/V-SiO2-1 | 622.8 | 1.205 | 7.288 |
P/V-SiO2-2 | 673.1 | 1.922 | 11.43 |
P/V-SiO2-3 | 631.3 | 2.903 | 16.12 |
P/V-SiO2-4 | 599.7 | 2.691 | 20.82 |
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Wang, W.; Tong, Z.; Li, R.; Su, D.; Ji, H. Polysiloxane Bonded Silica Aerogel with Enhanced Thermal Insulation and Strength. Materials 2021, 14, 2046. https://doi.org/10.3390/ma14082046
Wang W, Tong Z, Li R, Su D, Ji H. Polysiloxane Bonded Silica Aerogel with Enhanced Thermal Insulation and Strength. Materials. 2021; 14(8):2046. https://doi.org/10.3390/ma14082046
Chicago/Turabian StyleWang, Weilin, Zongwei Tong, Ran Li, Dong Su, and Huiming Ji. 2021. "Polysiloxane Bonded Silica Aerogel with Enhanced Thermal Insulation and Strength" Materials 14, no. 8: 2046. https://doi.org/10.3390/ma14082046