Surface Modification on Wood Composites

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 2331

Special Issue Editors

Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
Interests: functional decorative materials finishing (coating, impregnated decorative paper, decorative polymer film, etc); surface hydrophobization and strengthening of wood; polymer impregnation for wood composites
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
Interests: wood modification with nano-particles and emulsions; wood modification for hydrophobicity and dimensional stability; surface treatment on interface interaction in wood composites
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Special Issue Information

Dear Colleagues,

Recently, wood composites have been well developed, and their products have been used everywhere, such as in furniture, flooring, construction, rails, powder engineering, and even aerospace. Surface modification can improve some physical and mechanical properties of wood composites, such as hydrophobization, dimensional stability, hardness, flame retardance, and anti-fouling to pollutants. Due to the outer layer of modification, it is very closely related to terminal application. Therefore, appearance and environmental friendliness are also very important. Many kinds of modification techniques have been reported, such as green modifier treatments, colorless waterborne coating finishing, formaldehyde-free impregnated paper covering, and decorative polymer film finishing. In addition, some new research methods have also been applied on surface characterizations. Driven by the current development state of new modification techniques and research methods, it is necessary to understand the deep mechanisms and to explore some potential ideas in the modification process.

This scope of this Special Issue will serve as a forum for papers focusing on the following concepts:

  • Green modifiers and modification processes on wood composites that are harmless to humans and the environment;
  • Surface treatments with multiple functions, such as super-hydrophobization and flame and fungi retardance;
  • Experimental processing with new methods on surface treatments and characterizations;
  • Development of mechanisms on the surface and interface of wood composites;
  • Studies of advanced materials applied on wood composites.

Dr. Ru Liu
Dr. Jun Jiang
Guest Editors

Manuscript Submission Information

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Keywords

  • green surface modifiers
  • multi-functions on surfaces
  • surface treatments and characterizations
  • surface and interface mechanism
  • new materials

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Published Papers (1 paper)

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Research

12 pages, 4027 KiB  
Article
Bio-Based Impregnated Resin Preparation for Aldehyde-Free Decorative Paper Production
by Jin Wang, Jun Liu and Ling Long
Coatings 2023, 13(7), 1168; https://doi.org/10.3390/coatings13071168 - 28 Jun 2023
Cited by 1 | Viewed by 1734
Abstract
With the growing concern for environmental protection and personal health, utilizing bio-based impregnated resin has become a sustainable approach for producing aldehyde-free decorative paper and in-house decorations. Our current work focuses on the preparation of an aldehyde-free resin (AFR) by formulating quaternized cellulose [...] Read more.
With the growing concern for environmental protection and personal health, utilizing bio-based impregnated resin has become a sustainable approach for producing aldehyde-free decorative paper and in-house decorations. Our current work focuses on the preparation of an aldehyde-free resin (AFR) by formulating quaternized cellulose nanofibrils (QCNFs, Ave. width 10 ± 3 nm, Ave. length of and >500 nm) with aqueous acrylate emulsion. We analyzed the synthesized QCNFs, acrylate emulsion, and AFR by using various methods, including FTIR, XPS, XRD, TGA/DTG, and rheometer, to evaluate their applicability for impregnated paper processing. At a low coating weight of 4.0 g/m2, a 30.8% increase and 4.9-times increase in tensile strength and contact angle were detected, respectively. Meanwhile, the free aldehyde emission from the AFR-coated paper was found to be 0.1 mg/L even at a high coating weight of 18.8 g/m2, which is far below the E0 level requirement in the JAS 234:2003 criteria. Therefore, the surface coating of the decorative base paper was found to be competitive in covering the porous structure of the paper, reinforcing its mechanical strength, and providing high water resistance. Moreover, the lower free aldehyde emission from the AFR-coated paper ensures its safety and potential application in house decoration products. Full article
(This article belongs to the Special Issue Surface Modification on Wood Composites)
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