Transparent Cellulose-Based Film with High UV-Blocking Performance Fabricated by Surface Modification using Biginelli...

Area of Science:

• Materials Science
• Polymer Chemistry
• Nanotechnology

Background:

• Developing efficient and sustainable ultraviolet (UV)-blocking materials is crucial for various applications.
• Cellulose-based materials are attractive due to their abundance and biodegradability, but often require functionalization for advanced properties.

Purpose of the Study:

• To develop novel cellulose-based films with high-performance UV-blocking properties.
• To investigate the efficacy of the Biginelli reaction for surface modification of cellulose films.
• To assess the stability and transparency of the fabricated UV-blocking films.

Main Methods:

• Surface modification of cellulose films using the Biginelli reaction.
• Characterization of film properties including visible transparency and UV-blocking performance.
• Evaluation of material stability under exposure to solvents, UV irradiation, and thermal treatment.

Main Results:

• The developed cellulose-based films demonstrated excellent visible transparency (80% at 550 nm).
• The films exhibited superhigh UV-blocking performance, shielding almost 100% of both UVA and UVB radiation.
• The UV-blocking properties remained highly stable after exposure to solvents, UV light, and heat.

Conclusions:

• A novel and facile strategy for fabricating functional cellulose-based films with exceptional UV-blocking performance was established.
• The Biginelli reaction is an effective method for surface modification to create advanced cellulose materials.
• These stable, transparent, and highly UV-protective films hold significant potential for diverse applications.