Properties of Wood Ceramics Prepared from Thermo-Modified Poplar
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sample Preparation
2.2. Manufacturing of WCS
2.3. Characterization of WCS
2.4. Statistical Analysis
3. Results and Discussion
3.1. Pyrolysis of Wood Powder
3.2. Properties of WCS
3.2.1. The Carbon Yield and Volume Shrinkage of WCS
3.2.2. Elemental Analysis of WCS
3.3. SEM Micrographs of WCS
3.4. FTIR Analysis
3.5. XRD Analysis
4. Conclusions
- With the increase in resin content, the carbon yield of WCS increased, and the volume shrinkage decreased. Considering the resource cost, 10:6 is the optimum proportion for preparing WCS. At the same ratio of wood powder/phenolic resins of 10:6 and carbonization temperature, the carbon yield of HT-WCS was 40.45% and of UT-WCS was 35.74%.
- The WCS has an interconnected porous network microstructure composed of amorphous carbon and glass carbon. At the same pyrolysis temperature, the microstructure of HT-WCS is more rigid and homogeneous. This indicates that the thermos-modified wood significantly helps to increase the performance of phenolic resin to mix wood powders, and leads to construct a more uniform porous microstructure, strengthening the bonding between the two types of carbon.
- There is typical non-graphitizable carbon-containing C = C bonds, C-O-C bonds and C–H structure. HT-WCS and UT-WCS have analogous chemical structures. For UT-WCS, the absorption peak of stretching C-O in the aromatic structure connected with the alkyl group is stronger than that of HT-WCS.
- The XRD patterns indicated that WCS contains amorphous carbon, turbine structure and graphite. The intensity and position of diffraction peaks in the pattern were almost similar with different materials, which indicate that the effect of different wood powders on the XRD pattern of WCS is minimal.
Author Contributions
Funding
Conflicts of Interest
References
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Samples | C (wt.%) | H (wt.%) | O (wt.%) | N (wt.%) |
---|---|---|---|---|
UT-WP | 45.59 | 7.5 | 46.9 | 0.01 |
UT-WCS | 70.1 | 0.89 | 28.17 | 0.84 |
HT-WP | 48.95 | 7.3 | 43.51 | 0.24 |
HT-WCS | 79.9 | 0.39 | 19.86 | 0.66 |
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Chen, H.; Bahmani, M.; Humar, M.; Cheng, D. Properties of Wood Ceramics Prepared from Thermo-Modified Poplar. Forests 2020, 11, 1204. https://doi.org/10.3390/f11111204
Chen H, Bahmani M, Humar M, Cheng D. Properties of Wood Ceramics Prepared from Thermo-Modified Poplar. Forests. 2020; 11(11):1204. https://doi.org/10.3390/f11111204
Chicago/Turabian StyleChen, Hongyan, Mohsen Bahmani, Miha Humar, and Dali Cheng. 2020. "Properties of Wood Ceramics Prepared from Thermo-Modified Poplar" Forests 11, no. 11: 1204. https://doi.org/10.3390/f11111204