Carbon quantum dot-based preparation method for reinforced and toughened wood
By treating wood with carbon quantum dots modified with surface ions, the problem of reduced toughness caused by wood modification in existing technologies has been solved. This method achieves simultaneous improvement in wood strength, toughness, and dimensional stability, while maintaining the advantage of a high strength-to-weight ratio.
WO2026123427A1PCT designated stage Publication Date: 2026-06-18BEIJING FORESTRY UNIVERSITY
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BEIJING FORESTRY UNIVERSITY
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Existing wood modification methods, while improving strength and dimensional stability, usually lead to a decrease in toughness and a reduction in the strength-to-weight ratio of the modified wood, thus losing the inherent advantages of wood.
⚗Method used
Carbon quantum dot modified wood was prepared by treating wood with a vacuum pressure impregnation method using surface ion-modified carbon quantum dots, combined with end-capping materials and drying treatment.
🎯Benefits of technology
Under the premise that the overall size and quality of the wood do not change much, the dimensional stability, strength and toughness of the wood are improved simultaneously, and a high strength-to-weight ratio is maintained. Moreover, the modification process is simple and low in cost.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN2024144602_18062026_PF_FP_ABST
Abstract
The present invention relates to the technical field of wood modification, and in particular to a carbon quantum dot-based preparation method for reinforced and toughened wood. The preparation method comprises the following steps: treating a test material with a carbon quantum dot modification solution by means of a vacuum pressure impregnation method; then sealing end portions of wood by means of an end-sealing material, and placing the wood at room temperature for a period of time; and finally, placing the wood in a drying oven or a drying kiln for heating and drying, so as to obtain a carbon quantum dot-modified material. The carbon quantum dot-based preparation method of the present invention is simple, does not yield solid by-products, and takes a short time. In the present invention, carbon quantum dots are used to directly modify wood, the preparation process is simple, the concentration of the modification solution is low, the cost is low, and large-scale popularization and application can be achieved. In the prepared modified material, the absolute value of the crystallinity of cell walls can be increased and cell lumens can be expanded; while ensuring that the overall size and mass of wood do not change greatly, the dimensional stability, strength and toughness of wood are synchronously improved, and the strength-to-weight ratio of wood is improved.
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