Strong and Stable Woody Triboelectric Materials Enabled by Biphase Blocking

Area of Science:

• Materials Science
• Triboelectric Nanogenerators
• Smart Materials

Background:

• Growing demand for smart materials driven by the Internet of Everything (IoE).
• Wood is an abundant, renewable resource with traditional applications in construction and furnishing.
• Need to expand wood's application range into advanced functional materials.

Purpose of the Study:

• To develop a high-strength, stable wood-based triboelectric material.
• To enhance the fire resistance of wood-based materials.
• To explore the potential of wood as a smart sensor for applications in smart homes.

Main Methods:

• Synergistic biphasic mechanism for material development.
• In situ growth of flame retardants.
• Formation of a dense char layer for fire resistance.
• Fabrication of a dense laminate structure for toughness.

Main Results:

• Significantly enhanced fire resistance, reducing heat release rate (HRR) by 95.4% and total heat release (THR) by 94.2%.
• Excellent impact toughness of 126 kJ m^-2 due to the dense laminate structure.
• Demonstrated ability as a smart sensor to recognize human motion states and trajectories.

Conclusions:

• The developed wood-based triboelectric material exhibits high strength, stability, and superior fire resistance.
• The material shows great potential for smart home applications as a human motion sensor.
• This study highlights wood's potential as a versatile smart material for future technological advancements.