To prevent the heat generated by UV radiation from destroying the UV-shielding materials, zinc oxide/polyurethane composite membranes (ZnO/PU composite membranes) were synthesized via a simple solution casting method, where ZnO nanoparticles were firstly synthesized using a hydrothermal method with an eco-friendly reducing agent. Synthesized ZnO nanoparticles (240 nm) were symmetrical pyramid structured that efficiently reflect and absorb the full-length UV radiation. ZnO/PU composite membranes with various ZnO contents were acquired to obtain the optimal ZnO content with full-length UV-shielding properties. The result exhibits that the fabricated membranes with 6 wt% (based on PU weight) of ZnO content process full-length UV-shielding capability with high transmittance. The fabricated composite membranes were exposed under UV radiation at 60 °C for 12 days, confirming that the ZnO/PU composite membranes have high temperature stable UV-shielding properties. The composite mem branes provide a potential direction for fabricating materials with high temperature stable UV-shielding properties.

为了防止紫外线辐射产生的热量破坏紫外线屏蔽材料，通过简单的溶液浇铸方法合成了氧化锌/聚氨酯复合膜（ZnO / PU复合膜），其中首先使用水热法合成了ZnO纳米颗粒，环保还原剂​​。合成的ZnO纳米粒子（240纳米）是对称的金字塔结构，可有效反射和吸收全长UV辐射。获得具有不同ZnO含量的ZnO / PU复合膜，以获得具有全长紫外线屏蔽性能的最佳ZnO含量。结果表明，制成的膜的含量为6 wt％（基于PU重量的ZnO含量工艺具有高透射率的全长紫外线屏蔽能力。将制成的复合膜在60°C的紫外线辐射下暴露12天，证实ZnO / PU复合膜具有高温稳定的紫外线屏蔽性能。复合膜为制造具有高温稳定的紫外线屏蔽性能的材料提供了潜在的方向。