Consolidation and Dehydration of Waterlogged Archaeological Wood from Site Huaguangjiao No.1

Article Materials Science, Paper & Wood

Vacuum-heat treatment of Scots pine (Pinus sylvestris L.) wood pretreated with propanetriol

Huseyin Sivrikaya et al.

Summary: The pretreatment of pine sapwood with glycerol reduced maximum swelling and sorption hysteresis, while the vacuum-heat treatment (VHT) decreased the equilibrium moisture content and sorption hysteresis.

WOOD MATERIAL SCIENCE & ENGINEERING (2022)

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Article Forestry

Mild hydrothermal modification of beech wood (Zelkova schneideriana Hand-Mzt): its physical, structural, and mechanical properties

Xinhao Feng et al.

Summary: This study investigated the effect of mild hydrothermal modification on the properties of beech wood. It was found that the wood's dimensional stability and mechanical properties had moderate changes when the modification was done at a temperature of 140-160 celcius for 3 hours. Mild hydrothermal modification can be applied to improve wood performance in practical applications.

EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS (2022)

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Article Biotechnology & Applied Microbiology

Evaluation of PEG and sugars consolidated fragile waterlogged archaeological wood using nanoindentation and ATR-FTIR imaging

Liuyang Han et al.

Summary: In this study, an in situ analysis method based on nanoindentation technology and infrared imaging was proposed to evaluate the effect of consolidant distribution and intermolecular interactions on the mechanical improvement of waterlogged archaeological wood. The results showed that the consolidation with different consolidants significantly improved the mechanical properties of the wood, and the consolidants partly penetrated the wood cell walls, indicating the presence of non-covalent intermolecular interactions.

INTERNATIONAL BIODETERIORATION & BIODEGRADATION (2022)

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Article Materials Science, Paper & Wood

Moisture Transfer and Drying Stress of Eucalyptus Wood during Supercritical CO2 (ScCO2) Dewatering and ScCO2 Combined Oven Drying

Honghai Liu et al.

Summary: This study investigated the moisture transfer and drying stress of wood specimens dried using supercritical CO2 (ScCO2) dewatering. The results showed that ScCO2 dewatering was fast and had an impact on the moisture distribution and gradient in the wood. The residual stress in the wood was reduced after ScCO2 dewatering.

BIORESOURCES (2022)

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Review Materials Science, Paper & Wood

Recent advances in cellulose-based polymer electrolytes

Yudong Fu et al.

Summary: This review summarizes the structural features, physicochemical characteristics, manufacturing approaches, and modification methods of cellulose-based polymer electrolytes (PEs). Cellulose, with abundant reserves and eco-friendliness, has great potential in the field of lithium-based batteries.

CELLULOSE (2022)

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Article Materials Science, Paper & Wood

Effects of Thermal Treatment on the Dimensional Stability and Chemical Constituents of New and Aged Camphorwood

Guang Rui Sun et al.

Summary: In this study, green and naturally aged camphorwood samples were thermally treated to investigate the effects of different thermal treatments on their dimensional stability and hygroscopicity. The results showed that thermal treatment improved the dimensional stability and reduced the equilibrium moisture content of the samples. Fourier-transform infrared spectra revealed that treatment led to hemicellulose deacetylation.

BIORESOURCES (2022)

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Review Chemistry, Physical

Nanocellulose Based Filtration Membrane in Industrial Waste Water Treatment: A Review

Yunxia Liu et al.

Summary: Nanocellulose filtration membranes, as an emerging technology in membrane separation, have broad application prospects, but challenges such as membrane fouling still need to be addressed. Nanocellulose can be used in membrane separation as a membrane matrix material or as a modified additive, showing potential applications in wastewater treatment.

MATERIALS (2021)

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Article Forestry

The effect of the drying method on the cell wall structure and sorption properties of waterlogged archaeological wood

Magdalena Broda et al.

Summary: This study aimed to investigate the influence of different drying conditions on the relationships between cell wall structure, dimensional stability, and sorption properties of degraded archaeological wood. The results showed that different drying methods significantly affected the structure, dimensions, and sorption properties of the wood, but no correlations were found between wood structure and moisture behavior.

WOOD SCIENCE AND TECHNOLOGY (2021)

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Article Archaeology

Nondestructive visualization of polyethylene glycol impregnation in wood using ultrashort echo time 3D imaging

Mika Mori et al.

Summary: This study demonstrated a nondestructive 3D monitoring method of polyethylene glycol (PEG) impregnation in wood using magnetic resonance imaging ultrashort echo time (UTE). The signal intensity of the PEG solution increased monotonically with concentration, and stereoscopic images showed the PEG-impregnated portion in 3D. The study suggests that UTE imaging is a feasible method for nondestructively visualizing the PEG impregnation state of waterlogged wood in 3D.

JOURNAL OF CULTURAL HERITAGE (2021)

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Review Forestry

Conservation of Waterlogged Wood-Past, Present and Future Perspectives

Magdalena Broda et al.

Summary: This paper examines degradation, preservation, and conservation techniques for waterlogged archaeological wood, including the effects of bacteria and fungi in oxygenated and anoxic conditions, consolidants for post-excavation preservation, and the merits and risks of reburial and in situ preservation as alternatives to traditional conservation methods.

FORESTS (2021)

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Article Chemistry, Multidisciplinary

Effect of Temperature and Pressure of Supercritical CO2 on Dewatering, Shrinkage and Stresses of Eucalyptus Wood

Lin Yang

Summary: The study found that supercritical CO2 dewatering has a faster rate compared to conventional kiln drying, with significant effects on moisture content distribution and residual stress in wood; increasing temperature and pressure can enhance dewatering rate, with pressure playing a key role in high-temperature dewatering processes; wood collapse significantly decreases after dewatering due to reduced capillary tension from supercritical CO2.

APPLIED SCIENCES-BASEL (2021)

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Article Biochemistry & Molecular Biology