"Bottom-up" and "top-down" strategies toward strong cellulose-based materials.

Area of Science:

• Materials Science
• Polymer Science
• Biomaterials

Background:

• Cellulose, the most abundant natural polymer, possesses inherent high strength and modulus.
• Translating cellulose's mechanical properties to macroscopic 2D and 3D materials presents significant challenges.
• Developing advanced cellulose-based materials is crucial for sustainable high-performance applications.

Purpose of the Study:

• To review research progress in developing strong cellulose-based materials.
• To explore both "bottom-up" and "top-down" strategies for material synthesis.
• To provide an overview of potential applications and future research directions.

Main Methods:

• "Bottom-up" approach: Discusses regenerated cellulose and nanocellulose-based materials assembled via various methods.
• "Top-down" approach: Focuses on reinforced cellulose materials derived from natural sources like wood, bamboo, rattan, and straw.

Main Results:

• The review synthesizes current research on fabricating strong cellulose materials through diverse strategies.
• It highlights the successful development of both regenerated and nanocellulose-based high-strength materials.
• It also details advancements in reinforcing native cellulose structures from biomass.

Conclusions:

• Significant progress has been made in creating strong cellulose-based materials using both bottom-up and top-down approaches.
• These materials offer promising avenues for various applications due to their enhanced mechanical properties.
• Further research is needed to optimize synthesis and explore the full application potential.