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Related Concept Videos

Introduction to Wood01:19

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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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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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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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Seasoning of wood is a crucial process aimed at reducing and stabilizing the moisture content within the wood to prevent future shrinkage, structural damage, or aesthetic issues once the wood is used in construction. Wood naturally swells when it absorbs moisture and contracts as it dries.
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Updated: Aug 5, 2025

Fabrication and Design of Wood-Based High-Performance Composites
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Sustainable Thermal Energy Batteries from Fully Bio-Based Transparent Wood.

Céline Montanari1, Hui Chen1, Matilda Lidfeldt2

  • 1Department of Fibre and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, Teknikringen 56, Stockholm, 100 44, Sweden.

Small (Weinheim an Der Bergstrasse, Germany)
|March 27, 2023
PubMed
Summary

This study introduces a novel bio-based transparent wood (TW) for energy-saving buildings. This sustainable material offers excellent thermal energy storage and tunable light transmittance, reducing environmental impact.

Keywords:
LCAgreen chemistryheat storagenanotechnologywood biocomposite

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Area of Science:

  • Materials Science
  • Sustainable Building Materials
  • Renewable Energy Storage

Background:

  • Developing energy-saving building materials is crucial for reducing thermal energy consumption and enhancing natural indoor lighting.
  • Phase-change materials in wood composites show promise for thermal energy storage, but often lack sufficient renewable content, adequate thermal and mechanical properties, and sustainability assessments.
  • Existing solutions face limitations in renewable resource integration and performance optimization.

Purpose of the Study:

  • To introduce a novel, fully bio-based transparent wood (TW) biocomposite for thermal energy storage.
  • To combine excellent heat storage capabilities, tunable optical transmittance, and robust mechanical performance in a sustainable material.
  • To evaluate the environmental impact and scalability of the developed bio-based TW.

Main Methods:

  • Synthesized a bio-based matrix using limonene acrylate monomer and 1-dodecanol.
  • Impregnated the bio-based matrix into mesoporous wood substrates and performed in situ polymerization.
  • Characterized the thermal energy storage (latent heat), optical transmittance, mechanical strength, and performed a life cycle assessment.

Main Results:

  • The developed TW exhibited high latent heat (89 J g⁻¹), surpassing commercial gypsum panels.
  • Tunable optical transmittance up to 86% and mechanical strength up to 86 MPa were achieved.
  • Life cycle assessment indicated a 39% lower environmental impact compared to transparent polycarbonate panels.

Conclusions:

  • The fully bio-based transparent wood (TW) offers a promising solution for sustainable thermal energy storage in buildings.
  • The material demonstrates superior heat storage, tunable optical properties, and mechanical strength.
  • The TW presents a scalable and environmentally friendly alternative to conventional transparent materials.