Plant polyphenols inspired deep eutectic solvent functionalized boron nitride toward a high-performance...

Area of Science:

• Materials Science
• Biomaterials Engineering
• Sustainable Materials

Background:

• Natural bamboo has limitations in mechanical properties, dimensional stability, and antibacterial activity.
• These defects hinder its widespread application in construction and manufacturing.
• Developing enhanced bamboo materials is crucial for sustainable development.

Purpose of the Study:

• To design and develop a strong, tough, and antibacterial bamboo material.
• To overcome the inherent limitations of natural bamboo.
• To explore novel functionalization strategies for bamboo composites.

Main Methods:

• Incorporation of deep eutectic solvent (DES) functionalized boron nitride (BN) hybrids into bamboo.
• Preparation of DES from catechol gallic acid and cationic (meth)acrylic ammonium salts.
• In-situ deposition of DES@BN hybrids via vacuum impregnation, photopolymerization, and compression densification.

Main Results:

• Modified bamboo showed significantly increased tensile strength (100.8% higher) and flexural strength (61.7% higher).
• Enhanced dimensional stability and excellent antibacterial activity were observed in the fabricated bamboo composites.
• The DES polymer facilitated enhanced interfacial binding between BN and bamboo fibers.

Conclusions:

• The developed bamboo composites exhibit superior mechanical, stability, and antibacterial properties.
• This strategy offers a versatile approach to fabricating high-performance bamboo materials.
• Potential applications include sustainable building structures, decorative materials, and furniture.