Nacre-like Al2O3/Polyurethane Composite Film

20× energy absorption

Integrating hard porous alumina frameworks with flexible polyurethane buffers, this film dissipates energy through multiscale mechanisms for superior impact protection.

Wen, Zhixiong Xhiong · Wu, Yibo · Luo, Hao · Hu, Jianqiao · Wang, Tao · Liang, Xudong · Zhou, Helezi · Huang, Wei · Zhou, Huamin

Advanced Science 2024

Specifications

Normalized absorbed energy

{'zh': '约8.557', 'en': '8.557'} MJ m⁻³

涂覆后能承受

{'zh': '10', 'en': ''} 次

Advantages

Optimized hardness, strength, and modulus compared to polyurethane