公开(公告)号：US20240383170A1

公开(公告)日：2024-11-21

申请号：US18419652

申请日：2024-01-23

Applicant: NANJING FORESTRY UNIVERSITY.

Inventor： Qiliang Fu ,  Shuai Wu ,  Yue Jiao ,  Huashuo Ma

IPC: B27N1/00 ,  B27L11/00 ,  B27N3/02

Abstract: A flexible and smart wood with responsive function, an actuator and a preparation method of the flexible and smart wood with responsive function are provided. The preparation method includes the following steps: removing lignin from wood by using sodium chlorite solution, removing hemicellulose through alkali treatment, compounding a wood chip with an azobenzene compound by using a negative pressure method, and then densifying to form a wood film. According to the preparation method, the flexible and smart wood is successfully prepared, and the actuator made from the flexible and smart wood takes stimulation (such as illumination) given by an external environment as a power source, so that the actuator has an advantage of no secondary energy consumption.

公开(公告)号：US20240383169A1

公开(公告)日：2024-11-21

申请号：US18451821

申请日：2023-08-17

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： QiLiang Fu ,  YuJie Chen ,  Yue Jiao ,  Lei Ye ,  Zhi Yang ,  ChangTong Mei ,  Yan Wu ,  KaiLi Wang

IPC: B27K3/02 ,  B27K3/15 ,  B27K3/36

Abstract: A transparent wood surface imprinting optical device is provided. A preparation method for the device includes cleaning and drying surfaces of transparent wood, spin-coating polymethyl methacrylate (PMMA) on a substrate of the transparent wood to obtain a PMMA layer, and spin-coating an ultraviolet (UV) glue on the PMMA layer to obtain a UV glue layer; placing the transparent wood on a silicon wafer, attaching a transparent grating array imprinting template on the UV glue layer, exposing the UV glue layer, and removing the transparent grating array imprinting after the exposing, thereby to obtain a grating-structure-based transparent wood; and replacing the grating structure imprinting template by a lattice structure imprinting template to prepare lattice-structure-based transparent wood. The diffraction efficiency of the grating structure and the lattice structure on the transparent wood are greater and more stable than those of PMMA substrates.