Abstract
Phenolic resin (PR) was grafted onto the surface of graphene oxide (GO) through π–π conjugation and chemical bonding. After carbonization, organic compounds turned into carbon layers with a thickness of about 10 nm and coated on the surface of GO formed a core–shell structure. Besides, the adiabatic interface formed during organic carbonization can effectively connect the aerogels into a three-dimensional network. The optimum mass ratio of GO was determined to be 10 wt% in the preparation of the precursor aerogel. The adiabatic interfaces (carbon) between GO lamellae could effectively reduce the solid phase heat transfer in aerogels (thermal conductivity is 0.0457 W m−1 K−1). At the same time, the existence of GO also ensured better mechanical properties of GO/carbon composite aerogel (compressive strength is 2.43 MPa) compared with the pure carbon aerogel (1.52 MPa), demonstrating the excellent heat-shielding performance and mechanical property of GO/carbon aerogel.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: (No. 51772202)
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Author contribution: Hongli Liu and Wenjin Yuan conceived and enabled the research. Hongli Liu performed the material synthesis, physical and adsorption characterization. Hongli Liu and Peng Wang contributed to the experimental results analysis and writing the manuscript. Wenjin Yuan contributed to revise the manuscript. Hongyan Li assisted in the result discussion.
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Research funding: This work was financially supported by the National Natural Science Foundation of China (No. 51772202).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Material properties
- The effects of ZnO nanoparticle reinforcement on thermostability, mechanical, and optical properties of the biodegradable PBAT film
- The effect of fibre surface treatment and coupling agents to improve the performance of natural fibres in PLA composites
- Effects of infill pattern and density on wear performance of FDM-printed acrylonitrile-butadiene-styrene parts
- Preparation and assembly
- Study on the thermal insulation performance of the core–shell skeleton graphene oxide/carbon composite aerogel
- Engineering and processing
- Design criteria for the pin-foot ratio for joining adhesion-incompatible polymers using pin-like structures in vibration welding process
- Numerical investigation of tubular expansion and swelling elastomers in oil wells
Articles in the same Issue
- Frontmatter
- Material properties
- The effects of ZnO nanoparticle reinforcement on thermostability, mechanical, and optical properties of the biodegradable PBAT film
- The effect of fibre surface treatment and coupling agents to improve the performance of natural fibres in PLA composites
- Effects of infill pattern and density on wear performance of FDM-printed acrylonitrile-butadiene-styrene parts
- Preparation and assembly
- Study on the thermal insulation performance of the core–shell skeleton graphene oxide/carbon composite aerogel
- Engineering and processing
- Design criteria for the pin-foot ratio for joining adhesion-incompatible polymers using pin-like structures in vibration welding process
- Numerical investigation of tubular expansion and swelling elastomers in oil wells