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Polymers
Special Issues
Recent Developments in Wood Polymer Composites
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Recent Developments in Wood Polymer Composites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Circular and Green Polymer Science".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 7278

Special Issue Editor

Dr. Ming Zhang

E-Mail Website
Guest Editor
Wood Material Science and Engineering Key Laboratory of Jilin Province, Beihua University, ‎Jilin, China
Interests: biomimetic synthesis of biomass-based materials with superwetting property and their applications in the fields of wastewater purification and seawater desalination, preparation and intelligent recombination of nanofibrous lignocellulose for fluorescent solid-state probe and green wearable sensor

Special Issue Information

Dear Colleagues,

Polymers provide new insights into wood and other bio-based materials for advancing technologies and applications. Polymerization techniques are diverse, leading to biomass-based composites with various functions or even intelligences (responding to pH, light, magnetic/electric field, temperature, etc.) that point to new, emerging applications.

Wood polymer composites (WPCs) are constantly under evolution and advanced study. Increasing numbers of manuscripts are published, showing exciting results and advances with potential applications. However, they face new challenges related to synthetic procedure, scale-up, better performance, multi-functions, biomimetic structure and function, intelligent properties, action mechanisms, and high-tech applications. Many research groups worldwide are investigating WPCs from different perspectives and scientific interests, proving that WPCs produce continuous scientific, societal, and economic impacts.

In this Special Issue (SI), original research articles, rapid communications, and reviews on recent advances in WPCs will be welcomed.

Keywords in this SI will try to cover the majority of advances and applications of WPCs and other biomass polymer composites. We encourage potential authors to illustrate research advances in WPCs that are well beyond the topics covered by these specific keywords.

Dr. Ming Zhang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • polymers
  • wood composite
  • superwetting property
  • bio-based porous membrane
  • hybrid hydrogel and aerogel
  • water purification
  • seawater desalination
  • nano/micro structure
  • structure–property relationship
  • bionic and smart materials

Published Papers (5 papers)

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Research

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16 pages, 6902 KiB  
Article
Surface Roughness, Dynamic Wettability, and Interphase of Modified Melamine Formaldehyde-Based Adhesives on Jabon Wood
by Yusup Amin, Naresworo Nugroho, Effendi Tri Bahtiar, Wahyu Dwianto, Muhammad Adly Rahandi Lubis, Ulfa Adzkia and Lina Karlinasari
Polymers 2024, 16(8), 1084; https://doi.org/10.3390/polym16081084 - 12 Apr 2024
Viewed by 513
Abstract
The surface roughness and wettability of wood are critical aspects to consider when producing laminated wood products with adhesive applications. This study aims to investigate the surface roughness and dynamic wettability of Jabon wood in the presence of melamine formaldehyde (MF)-based adhesives. Commercial [...] Read more.
The surface roughness and wettability of wood are critical aspects to consider when producing laminated wood products with adhesive applications. This study aims to investigate the surface roughness and dynamic wettability of Jabon wood in the presence of melamine formaldehyde (MF)-based adhesives. Commercial MF adhesives (MF-0) and modified MF adhesives (MF-1) were applied to Jabon wood, which includes tangential (T), radial (R), and semi-radial (T/R) surfaces. The surface roughness of Jabon wood was assessed using a portable stylus-type profilometer. The low-bond axisymmetric drop shape analysis (LB-ADSA) method was employed to identify the contact angle (θ) of the MF-based adhesives on Jabon wood. The wettability was determined by evaluating the constant contact angle change rate (K value) using the Shi and Gardner (S/G) model. Dynamic mechanical analysis (DMA) was employed to investigate the viscoelastic characteristics of the interphase analysis of the wood and MF-based adhesives. The roughness level (Ra) of the Jabon board ranged from 5.62 to 6.94 µm, with the T/R having a higher level of roughness than the R and T. MF-0 exhibited a higher K value (0.262–0.331) than MF-1 (0.136–0.212), indicating that MF-0 wets the surface of Jabon wood more easily than MF-1. The wood–MF-0 interphase reached a maximum stiffness of 957 N/m at 123.0 °C, while the wood–MF-1 had a maximum stiffness of 2734 N/m at 110.5 °C. In addition, the wood–MF-0 had a maximum storage modulus of 12,650 MPa at a temperature of 128.9 °C, while the wood–MF-1 had a maximum storage modulus of 22,950 MPa at 113.5 °C. Full article
(This article belongs to the Special Issue Recent Developments in Wood Polymer Composites)
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13 pages, 2229 KiB  
Article
Characterization and Application of Non-Formaldehyde Binder Based Citric Acid, Maleic Acid, and Molasses Adhesive for Plywood Composite
by Jajang Sutiawan, Alifah Syahfitri, Deni Purnomo, Sudarmanto, Narto, Fazhar Akbar, Dimas Triwibowo, Ismadi, Putri Amanda, Sukma Surya Kusumah, Muhammad Adly Rahandi Lubis, Dede Hermawan, Ignasia Maria Sulastiningsih, Arif Nuryawan and Luthfi Hakim
Polymers 2023, 15(19), 3897; https://doi.org/10.3390/polym15193897 - 27 Sep 2023
Viewed by 1237
Abstract
Emissions of formaldehyde from wood-based panels, such as plywood, are gaining increased attention due to their carcinogenic impact on human health and detrimental effects on the environment. Plywood, which is primarily bound with a urea-formaldehyde adhesive, releases formaldehyde during hot pressing and gradually [...] Read more.
Emissions of formaldehyde from wood-based panels, such as plywood, are gaining increased attention due to their carcinogenic impact on human health and detrimental effects on the environment. Plywood, which is primarily bound with a urea-formaldehyde adhesive, releases formaldehyde during hot pressing and gradually over time. Therefore, this study aims to analyze the impact of non-formaldehyde adhesive types on plywood performance. In addition, plywood performance was assessed by comparing Jabon wood (Anthocephalus cadamba Miq) veneer with other Indonesian wood veneers such as Mempisang (Alphonse spp.) and Mahogany (Swietenia mahagoni). To manufacture a three-layer plywood panel, a two-step manufacturing process was devised. The first step involved the use of Jabon veneers treated with citric acid (CA), maleic acid (MA), and molasses (MO), and another step was carried out for various wood veneers such as Jabon, Mempisang, and Mahogany using CA. The performance of plywood was examined using JAS 233:2003. The performance of plywood bonded with CA was better than that of plywood bonded with MA and MO. The Jabon wood veneer resulted in a lower density of plywood than other wood veneers. The water absorption, thickness swelling, modulus of elasticity, and tensile shear strength of plywood from Jabon wood veneer were similar to those of plywood from Mahogany wood veneer and lower than those of Mempisang wood veneer. The ester linkages of plywood bonded with CA were greater than those of plywood bonded with MA and MO because plywood bonded with CA has better performance than plywood bonded with MA and MO. Full article
(This article belongs to the Special Issue Recent Developments in Wood Polymer Composites)
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13 pages, 6743 KiB  
Article
Preparation of Microcrystalline Cellulose/N-(2-aminoethyl)-3- Aminopropyl Methyl Dimethoxysilane Composite Aerogel and Adsorption Properties for Formaldehyde
by Yaning Li, Zhongzheng Liu, Chuanxi Chi, Bin Yuan, Yang Zhang, Guiquan Jiang and Jianxi Song
Polymers 2023, 15(15), 3155; https://doi.org/10.3390/polym15153155 - 25 Jul 2023
Cited by 1 | Viewed by 956
Abstract
Air pollution is related to the development of the national economy and people’s livelihoods. Formaldehyde, as one of the main pollutants in the air, affects people’s physical and mental health. In order to remove formaldehyde and better protect the health of residents, it [...] Read more.
Air pollution is related to the development of the national economy and people’s livelihoods. Formaldehyde, as one of the main pollutants in the air, affects people’s physical and mental health. In order to remove formaldehyde and better protect the health of residents, it is necessary to develop efficient adsorption materials. In this study, APMDS-modified cellulose composite aerogel microcrystalline was investigated. The adsorption of formaldehyde by the MCC/APMDS (Microcrystalline Cellulose/N-(2-aminoethyl)-3- Aminopropyl Methyl Dimethoxysilane) composite aerogel mainly relied upon the reaction of the protonated –NH3+ group in APMDS with formaldehyde to form a Schiff base to achieve the effect of deformaldehyde. Meanwhile, the modification of the aerogel reduced the pore volume and specific surface area, and the average pore size increased to 14.56 nm, which enhanced the adsorption capacity of formaldehyde, and the adsorption amount reached 9.52 mg/g. This study provides valuable information for the preparation of adsorbent materials with high formaldehyde adsorption capacity for air purification. Full article
(This article belongs to the Special Issue Recent Developments in Wood Polymer Composites)
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29 pages, 5588 KiB  
Review
Research Advances in Wood Composites in Applications of Industrial Wastewater Purification and Solar-Driven Seawater Desalination
by Dongsheng Song, Dingqiang Zheng, Zhenghui Li, Chengyu Wang, Jian Li and Ming Zhang
Polymers 2023, 15(24), 4712; https://doi.org/10.3390/polym15244712 - 14 Dec 2023
Cited by 3 | Viewed by 1336
Abstract
In recent years, the ecosystem has been seriously affected by sewage discharge and oil spill accidents. A series of issues (such as the continuous pollution of the ecological environment and the imminent exhaustion of freshwater resources) are becoming more and more unmanageable, resulting [...] Read more.
In recent years, the ecosystem has been seriously affected by sewage discharge and oil spill accidents. A series of issues (such as the continuous pollution of the ecological environment and the imminent exhaustion of freshwater resources) are becoming more and more unmanageable, resulting in a crisis of water quality and quantity. Therefore, studies on industrial wastewater purification and solar-driven seawater desalination based on wood composites have been widely considered as an important development direction. This paper comprehensively analyzes and summarizes the applications of wood composites in the fields of solar-driven seawater desalination and polluted water purification. In particular, the present situation of industrial wastewater containing heavy metal ions, microorganisms, aromatic dyes and oil stains and related problems of solar-driven seawater desalination are comprehensively analyzed and summarized. Generally, functional nanomaterials are loaded into the wood cell wall, from which lignin and hemicellulose are selectively removed. Alternatively, functional groups are modified on the basis of the molecular structure of the wood microchannels. Due to its three-dimensional (3D) pore structure and low thermal conductivity, wood is an ideal substrate material for industrial wastewater purification and solar-driven seawater desalination. Based on the study of objective conditions such as the preparation process, modification method and selection of photothermal conversion materials, the performances of the wood composites in filtration, adsorption and seawater desalination are analyzed in detail. In addition, this work points out the problems and possible solutions in applying wood composites to industrial wastewater purification and solar-driven seawater desalination. Full article
(This article belongs to the Special Issue Recent Developments in Wood Polymer Composites)
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28 pages, 11598 KiB  
Review
Progress in the Preparation of Stimulus-Responsive Cellulose Hydrogels and Their Application in Slow-Release Fertilizers
by Zhenghui Li and Ming Zhang
Polymers 2023, 15(17), 3643; https://doi.org/10.3390/polym15173643 - 4 Sep 2023
Cited by 8 | Viewed by 2364
Abstract
Agriculture is facing challenges such as water scarcity, low fertilizer utilization, food security and environmental sustainability. Therefore, the development of slow-release fertilizer (SRF) with controlled water retention and release is particularly important. Slow-release fertilizer hydrogel (SRFH) has a three-dimensional (3D) network structure combined [...] Read more.
Agriculture is facing challenges such as water scarcity, low fertilizer utilization, food security and environmental sustainability. Therefore, the development of slow-release fertilizer (SRF) with controlled water retention and release is particularly important. Slow-release fertilizer hydrogel (SRFH) has a three-dimensional (3D) network structure combined with fertilizer processing, displaying excellent hydrophilicity, biocompatibility and controllability. Cellulose has abundant hydroxyl groups as well as outstanding biodegradability and special mechanical properties, which make it a potential candidate material for the fabrication of hydrogels. This work would analyze and discuss various methods for preparing stimulus-responsive cellulose hydrogels and their combinations with different fertilizers. Moreover, the application and release mechanism of stimulus-responsive cellulose hydrogels in SRF have been summarized as well. Finally, we would explore the potential issues of stimulus-responsive cellulose hydrogels serving as an SRF, propose reasonable solutions and give an outlook of the future research directions. Full article
(This article belongs to the Special Issue Recent Developments in Wood Polymer Composites)
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