Transparent wood has potential application in intelligent building, solar cell, electronics, and other advanced materials, while its single functionability hinders its further development. Flexible transparent wood (FTW) was prepared by alkaline pretreatment and bleaching treatment of paulownia wood followed by impregnation of epoxy resin and ethylene glycol diglycidyl ether (EDGE). The effect of delignification degree on the optical and mechanical properties of FTW was studied, and the influence of the epoxy/EDGE ratio on the flexibility and mechanical properties of FTW was also investigated. The results showed that higher delignification degree resulted in higher transmittance of FTW. More EDGE addition led to better flexibility of FTW, while overmuch addition of EDGE will reduce the mechanical properties. The optimal FTW sample resulted in a high transmittance of 89% and an ultrahigh haze value of 97% with outstanding flexibility and excellent mechanical properties. The investigation of FTW broadens the research field of transparent wood, and provides great possibility for its application in flexible wearable devices and flexible materials.

透明木材在智能建筑，太阳能电池，电子产品和其他先进材料中具有潜在的应用，而其单一功能阻碍了其进一步发展。通过对泡桐木进行碱预处理和漂白处理，然后浸渍环氧树脂和乙二醇二缩水甘油醚（EDGE），制备了柔性透明木（FTW）。研究了脱木素度对FTW的光学和机械性能的影响，并研究了环氧/ EDGE比对FTW的柔韧性和机械性能的影响。结果表明，更高的去木质度导致FTW的透射率更高。增加更多的EDGE可以提高FTW的灵活性，而过多增加EDGE则会降低机械性能。最佳的FTW样品具有89％的高透射率和97％的超高雾度值，并具有出色的柔韧性和出色的机械性能。FTW的研究拓宽了透明木材的研究领域，为其在柔性可穿戴设备和柔性材料中的应用提供了很大的可能性。