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Low-Cost Intrinsic Flame-Retardant Bio-Based High Performance Polyurethane and its Application in Triboelectric
Xiaoyu Zhang1, Xixian Yan1, Fanglei Zeng1
1Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Jiangsu Province Key Laboratory of Environmentally Friendly Polymer Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, 213164, P. R. China.
This study introduces a new flame-retardant, bio-based elastic material for triboelectric nanogenerators (TENGs). The developed material enhances safety and environmental friendliness in flexible electronics and power generation.
Area of Science:
- Materials Science
- Polymer Chemistry
- Energy Harvesting
Background:
- Flammability of petroleum-based polymers in electronics poses significant risks.
- Existing flame-retardant triboelectric nanogenerators (TENGs) lack room-temperature elasticity.
- Need for safe, elastic, and environmentally friendly materials for TENGs.
Purpose of the Study:
- To synthesize an intrinsically flame-retardant, bio-based elastic material for TENGs.
- To develop a PUPA-TENG with enhanced safety and performance characteristics.
- To provide a sustainable alternative for flexible electronics and energy harvesting.
Main Methods:
- One-pot polycondensation synthesis of bio-based elastic phytic acid polyurethane (PUPA).
- Fabrication of PUPA into a PUPA-TENG device.
- Characterization of PUPA-TENG's elasticity, flame retardancy, impact resistance, and dielectric properties.
Main Results:
- PUPA exhibits superior elasticity (660% elongation) and flame retardancy (UL94 V-0).
- PUPA-TENG demonstrates high impact resistance (34.71 MJ m⁻³) and dielectric constant (Dk = 9.57).
- The material's cross-linked and polar phosphorus-containing segments contribute to its properties.
Conclusions:
- A simple strategy for creating intrinsically flame-retardant, bio-based elastic TENGs is presented.
- PUPA-TENG offers a safe and environmentally friendly solution for flexible electronics.
- Potential applications include personal protection, firefighting, and new energy technologies.
