Plastics play a critical role in daily life but possess a considerably increasing negative impact on the environment and human health. Fabrication of biodegradable and eco-friendly alternatives with competitive properties for plastic substitute is urgently needed. Here, inspired by the hierarchical structure of nacre, we firstly developed a high-performance nacre-inspired composite with high transmittance (83.4% at 550 nm) and high haze (88.8% at 550 nm) via an aerosol-assisted biosynthesis process combined with the hot-press technique. The nacre-inspired composite film combines higher strength (482 MPa) and toughness (17.71 MJ m⁻³) than most other nacre-inspired films, and can be folded into various shapes without visible failure after unfolding. Moreover, compared with most commercial plastic films, it exhibits a lower thermal expansion coefficient (∼3 ppm K⁻¹) and higher maximum service temperature besides better mechanical properties, which makes it a promising alternative to plastics in many technical fields.

塑料在日常生活中起着至关重要的作用，但对环境和人类健康的负面影响却大大增加。迫切需要制造具有可竞争性的可生物降解和环保替代品，以替代塑料。在这里，受珍珠层的分层结构的启发，我们首先通过气溶胶辅助生物合成工艺开发了一种高性能的由珍珠层启发的复合材料，该复合材料具有高透射率（在550 nm下为83.4％）和高雾度（在550 nm下为88.8％）。热压技术。受珍珠质启发的复合膜具有更高的强度（482 MPa）和韧性（17.71 MJ m ^-3）），而不是大多数其他受珍珠质启发的薄膜，并且可以折叠成各种形状，展开后不会出现明显的故障。此外，与大多数商业塑料薄膜相比，它具有更低的热膨胀系数（〜3 ppm K ^-1）和更高的最高使用温度，同时具有更好的机械性能，这使其成为许多技术领域中有希望替代塑料的有希望的替代品。