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Updated: Aug 5, 2026
11:27
Synthesis Method for Cellulose Nanofiber Biotemplated Palladium Composite Aerogels
Published on: May 9, 2019
Engineering Hierarchical Cellulose Aerogel Networks Toward Decoupled Heat Transfer and Enhanced Multi-Phase Fire
Lei Chen1,2, Haiyan Wang1, Wei Ding2
1School of Emergency Management and Safety Engineering, China University of Mining Technology (Beijing), Xuyuan Road Ding 11, Haidian District, Beijing 100012, China.
Materials (Basel, Switzerland)
|July 28, 2026
Summary
This study developed a robust, fire-safe cellulose aerogel using aluminum trihydroxide (ATH) and microencapsulated APP@ATH-MEL. The innovative composite offers superior thermal insulation and mechanical strength for advanced applications.
Area of Science:
- Materials Science
- Sustainable Chemistry
- Nanotechnology
Background:
- Cellulose aerogels show promise for thermal insulation but lack mechanical strength and fire resistance.
- Existing limitations hinder the widespread application of cellulose-based thermal insulation materials.
Purpose of the Study:
- To engineer a cellulose-based composite aerogel with enhanced structural stability, thermal insulation, and fire safety.
- To address the limitations of mechanical robustness and flammability in cellulose aerogels.
Main Methods:
- Fabrication of a cellulose-based composite aerogel using a multiscale network-engineering strategy.
- In situ generation and integration of aluminum trihydroxide (ATH) and microencapsulated APP@ATH-MEL into the cellulose scaffold.
- Characterization of structural, thermal insulation, mechanical, and fire safety properties.
Main Results:
- The composite aerogel achieved a low thermal conductivity of 35 mW·m⁻¹·K⁻¹ and improved compression resistance.
- Enhanced fire safety demonstrated by reduced mass-loss rate, increased char yield, suppressed heat release, and lower gaseous emissions.
- The hierarchical framework promoted interfacial interactions, load transfer, and suppressed freeze-drying collapse.
Conclusions:
- The multiscale network-engineering strategy effectively created a mechanically robust and fire-safe cellulose aerogel.
- The synergistic flame-retardant components and regulated architecture contribute to superior thermal insulation and fire safety.
- This work presents a viable approach for developing advanced, sustainable thermal-insulation materials.
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