CONSTRUCTION AND BUILDING MATERIALS
·
2023
·
IF 7.4
Dongbin Liu,Bahityar Qasem,Junfeng Hou,Zhiming Wang,Junjie Cen,Shermamat Arkin,Xingying Zhang,Yuge Zhang,Youming Yu
Construction wastes (CWs) were utilized in this work as the feedstock for manufacturing wasted-based particle boards (WPBs). Results revealed that phytic acid (PA), as a natural and sustainable fire retardant, imparts the WPBs excellent flame retardancy and smoke suppression. The hydrogen bonds network formed among PA, waste particles, and adhesive improves the stress transferring of WPBs when subjected to load, thus elevating the modulus of elasticity and inner bonding strength of PA-treated WPBs. We believe that the as-proposed recycling methods promote the value-added utilization of CWs, and it is also beneficial for realizing the recycling of timber architectures.
研究领域:
材料科学
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环境科学
·
可持续发展
✓ 已验证
产品关联
DOI
高影响因子
Materials Horizons
·
2025
·
IF 10.7
Yu Kang,Xuetao Xu,Jiankun Lai,Yuepeng Li,Wei Li,Yanqiang Wei,Feilong Zhang,Shutao Wang
Colorful wood boards are widely favored in construction and decoration for their outstanding qualities and visually striking appearance. However, the current coloration process of wood boards often relies on formaldehyde-releasing organic paints, which raise environmental and health concerns. Here, a general metal-ligand coordination approach is presented to fabricate the eco-friendly, colorful particleboards without the utilization of traditional harmful paints. Base on the regulation of metal-ligand coordination process, the resulting particleboards show tunable colors, including a range of pink, yellow-brown, orange, grass green, turquoise, indigo, and violet etc. These colorful particleboards demonstrate exceptional mechanical performance, with a flexural strength of 55.3 ± 3.1 MPa. Additionally, the through-color of the as-prepared particleboards allows their unprecedented color durability against repeated wear, unlike that of traditional colorful coating techniques. This study offers a promising eco-friendly coloration pathway for functional wood materials, meeting sustainable, esthetic, and health-related demands.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
WOOD SCIENCE AND TECHNOLOGY
·
2025
·Vol. 59
·期 4
·1-25
·
IF 3
Ding Jiarong,Tian Shiyu,Hu Zewen,Zhao Aichen,Liu Yu,Zhu Xiaodong
Formaldehyde released from particleboard poses a serious threat to indoor air quality, and there is an urgent need to develop efficient adsorbents to reduce its release. This study introduces micro-nano chitosan (multiscale chitosan cross-linked polymers, MNCs) as a novel adsorbent, synthesized via ionic gelation and systematically characterized in terms of their specific surface area (0.301 m 2 /g), average particle size (19.96 μm), spherical morphology, and surface functional groups. The formaldehyde emission from particleboard treated with 3% MNCs was found to be reduced to 70.7% of that of the control group on day 28 by the 1 m 3 climate chamber experiment, which was a significant emission reduction effect. The adsorption kinetic analysis showed that the adsorption of formaldehyde by MNCs conformed to the pseudo-second-order adsorption kinetic model, and its chemical adsorption mechanism was attributed to the Schiff base reaction between the amino group on the chitosan ring and formaldehyde. In the C-history experiment, the C m0 of control panel was measured to be 1.94 × 10 5 mg/m 3 and D m to be 2.7 × 10 −8 m 2 /s, whereas after treatment with 3% MNCs, the C m0 ' was reduced to 0.29 × 10 5 mg/m 3 , the D m ' was reduced to 4.31 × 10 −10 m 2 /s and the partition coefficient K was enhanced from 243.9 to 855.5 in the original panels, indicating that the addition of MNCs significantly inhibited the diffusion of formaldehyde, enhanced the retention capacity of formaldehyde in the particleboards, and reduced the initial volatilizable formaldehyde reserves. This study provides theoretical basis and experimental support for the application of MNCs in the pollution control of wood-based panels, whose efficient emission reduction performance originates from the unique nanoporous structure and the active amino sites in chitosan molecules.
研究领域:
材料科学
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环境科学
·
室内空气质量
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产品关联
DOI
高影响因子
ACS Omega
·
2022
·
IF 4.132
Zhenzeng Wu,John Tosin Aladejana,Shuqiong Liu,Xinhuai Gong,Xiaodong Alice Wang,Yongqun Xie
Unsaturated polyester resin (UPR) with good chemical resistance, excellent mechanical properties, and formaldehyde-free shows great potentials in the wood industry. In this study, the mechanical strength, thermostability, dynamic thermomechanical property, and interfacial bonding of bamboo particle boards (BPBs) made from UPR adhesives with toluene diisocyanate (TDI) as the coupling agent were explored. The results showed that covalent bonds were formed among TDI, bamboo particles, and UPR, which could significantly enhance the mechanical strength. The internal bonding strength, modulus of elasticity, and modulus of rupture of treated BPBs were 1.36, 3010, and 19.6 MPa with the increment of 1250, 514, and 833%, respectively, compared to the control samples. Also, the thickness swelling rate of the BPB was 4.6%, much lower than that of the control, with a decrease of 92%. The thermostability of the treated BPB was also improved. As a result, the BPB using UPR as the adhesive and TDI as the coupling agent shows better usability, higher efficiency, and excellent mechanical strength.
研究领域:
材料科学
·
林业工程
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Liyuan Zhang,Yizhen Chen,Renhui Qiu,Eiichi Sakai,Jianhui Qiu,Wendi Liu
With the growing depletion of sustainable forest resources, bamboo has attracted increasing interest as a rapidly renewable material with robust mechanical strength. However, bamboo-based composites are inherently flammable, and conventional adhesives often release formaldehyde. This study developed a flame-retardant bamboo particleboard by incorporating ammonium polyphosphate (APP) into a bio-based adhesive system. APP formed phosphate–hydroxyl interactions with the adhesive and provided effective pore filling within particle gaps, thus enhancing both flame retardancy and mechanical properties. The optimized particleboard (ABP15) achieved an internal bonding strength of 1.14 MPa, far exceeding the standard requirement. Moreover, ABP15 reached a LOI of 32.48 % and attained a UL-94 V-0 rating, while peak heat release rate and smoke production rate were reduced by 44.9 % and 38.5 %, respectively. Raman and TG-IR analyses confirmed the formation of a denser and more stable char layer at the adhesive–bamboo interface. Overall, this study demonstrates a straightforward approach for developing eco-friendly bamboo composites with improved fire safety and mechanical reliability.
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产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Liyuan Zhang,Yizhen Chen,Shimin Geng,Zhen Huang,Renhui Qiu,Tingting Chen,Wendi Liu
The development of eco-friendly adhesives derived from renewable sources to replace conventional petroleum-based alternatives could promote the achievement of carbon peaking and carbon neutrality goals. Herein, a series of plant oil thermosets were developed from acrylated epoxidized soybean oil (AESO) and a palm oil-based dimethacrylate (MPOEA), and then used as the adhesives for developing formaldehyde-free bamboo particleboards . Concerning the weak cohesion and adhesion forces of the adhesives, 2-isocyanethyl methacrylate (IEM) was incorporated to enhance both the crosslinking density within the thermosets and the bonding strength between bamboo particles and the thermosetting materials. The addition of IEM resulted in a notable improvement in the processability, mechanical characteristics, thermal resistance, and lap-shear strength of the thermosets. The thermosets with optimum components attained a tensile strength of 29.7 MPa, a glass transition temperature of 106.9 °C, and a shear strength of 1.7 MPa onto bamboo. The prepared bamboo particleboards exhibited superior mechanical properties, water resistance, and high-temperature resistance.
研究领域:
材料科学
·
环境科学
·
林业工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）