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Construction of wood-based cellulose micro-framework composite form-stable multifunctional materials with thermal and electrical response via incorporating erythritol-urea (thiourea)-carbon nanotubes
- Source :
- International Journal of Biological Macromolecules. 184:538-550
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- In this study, two kinds of form-stable multifunctional materials with thermal and electrical response (FPCMs: DP-E7U3-CNT, DP-E7T3-CNT) are composed of wood-based honeycomb-like celluloses micro-framework (DP), carbon nanotubes (CNT), erythritol-urea (E7U3) or erythritol-thiourea (E7T3). In FPCMs, DP acts as a skeleton structure to seal E7U3 and E7T3 and provide more pathways for heat conduction. The CNT acts as an extended surface to further improve thermal conductivity. FE-SEM showed that the honeycomb-like pore structure of DP was completely filled with E7U3, E7T3 and CNT. FTIR and XRD analysis show that there is only a combination of physical interactions between the components of FPCMs. DSC curves and thermal conductivity analysis results show that DP-E7U3-1.5CNT and DP-E7T3-1.5CNT with the mass fraction of carbon nanotubes (1.5 wt%) have the highest latent heat values (230.3 J/g, 272.2 J/g) and thermal conductivity (0.9832 W/(m·K), 0.9363 W/(m·K)). Both DP-E7U3-1.5CNT and DP-E7T3-1.5CNT exhibit high latent heat retention and thermal stability after 100 heating-cooling cycles. In addition, DP-E7U3-1.5CNT and DP-E7T3-1.5CNT show excellent performance in light-heat energy conversion-storage, actual latent heat storage and release, thermal and electrical response performance, which make it has great potential to be multifunctional materials with thermal storage sand electrical response.
- Subjects :
- Materials science
Composite number
02 engineering and technology
Carbon nanotube
Thermal energy storage
Biochemistry
Phase Transition
law.invention
03 medical and health sciences
Thermal conductivity
Structural Biology
law
Latent heat
Materials Testing
Urea
Thermal stability
Cellulose
Molecular Biology
030304 developmental biology
0303 health sciences
Molecular Structure
Nanotubes, Carbon
Electric Conductivity
Thiourea
Thermal Conductivity
Equipment Design
General Medicine
021001 nanoscience & nanotechnology
Thermal conduction
Wood
Erythritol
Chemical engineering
0210 nano-technology
Mass fraction
Subjects
Details
- ISSN :
- 01418130
- Volume :
- 184
- Database :
- OpenAIRE
- Journal :
- International Journal of Biological Macromolecules
- Accession number :
- edsair.doi.dedup.....3e1bf1b741d9285500c7e828e3e8c206