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Related Concept Videos

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As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
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Wood Products01:21

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Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
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Wood, derived from trees, is a versatile and widely used construction material. Trees feature a trunk surrounded by a protective layer of dead bark. Beneath this outer layer lies the living bark, followed by the cambium, and then the sapwood which transitions into heartwood as it matures. At the center of the trunk is the pith. The age of a tree can be discerned by examining its growth rings, which are concentric bands visible in the trunk's cross-section.
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Related Experiment Video

Updated: Jun 20, 2025

Fabrication and Design of Wood-Based High-Performance Composites
08:08

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Powering the Future Green Buildings: Multifunctional Ultraviolet-Shielding Transparent Wood.

Yadong Yang1, Xinyi Liu1, Caichao Wan1

  • 1College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, P. R. China.

ACS Nano
|July 22, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a novel method for creating UV-shielding transparent wood (TW) using high-pressure supercritical CO2 fluid-assisted impregnation. The resulting material effectively blocks 99.6% of UVA radiation while maintaining high visible light transmission.

Keywords:
energy efficiencyfuture buildingsmultifunctionaltransparent woodultraviolet shielding

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Green Building Materials

Background:

  • Indoor UV damage is a significant issue often overlooked.
  • Conventional glasses have limitations in UV filtering, durability, and environmental impact.
  • Transparent wood (TW) offers potential for UV shielding but faces challenges in balancing UV blocking with visible light transmission due to wood's inherent properties.

Purpose of the Study:

  • To develop an effective method for fabricating UV-shielding transparent wood (TW).
  • To overcome challenges in polymer and nanomaterial infiltration into wood structures.
  • To create a novel building material with enhanced UV protection, energy efficiency, and other beneficial properties.

Main Methods:

  • High-pressure supercritical CO2 fluid-assisted impregnation (HSCFI) was employed for wood pretreatment and polymer infiltration.
  • Supercritical CO2 pretreatment removed moisture and extractives, increasing wood permeability by 52.4%.
  • Methyl methacrylate (MMA) monomer and cerium-zinc oxide nanorods (Ce-ZnO NRDs) were infiltrated into the refined wood structure.

Main Results:

  • The impregnation rate of polymethyl methacrylate (PMMA) increased significantly from 34.5% to 59.1%.
  • The fabricated Ce-ZnO NRDs@TW achieved 99.6% UVA radiation blockage, the highest reported for TW.
  • High visible-light transmission (83.2%) was maintained, alongside excellent energy-saving, sound absorption, and antifungal properties.

Conclusions:

  • HSCFI is an effective technique for producing high-performance UV-shielding transparent wood.
  • Ce-ZnO NRDs@TW demonstrates superior UV protection and desirable functional properties for sustainable building applications.
  • This advanced transparent wood material shows significant promise for future green building innovations.