Wood Science and Technology最新文献_第4页

Measurement of elastic modulus of wood based on the dual PZT patch transducer 基于双PZT贴片传感器的木材弹性模量测量

IF 3.2 2区农林科学

Wood Science and Technology Pub Date : 2026-07-04 DOI: 10.1007/s00226-026-01783-6

Shaocheng Li, Guangzhou Xu, Hailong Hu

{"title":"Measurement of elastic modulus of wood based on the dual PZT patch transducer","authors":"Shaocheng Li, Guangzhou Xu, Hailong Hu","doi":"10.1007/s00226-026-01783-6","DOIUrl":"10.1007/s00226-026-01783-6","url":null,"abstract":"<div>Elastic modulus reflects the ability of wood to resist deformation. The existing longitudinal vibration method plays an important role in the determination of elastic modulus of wood. To simplify the detection system and facilitate measurement, a novel method for measuring the elastic modulus of wood has been proposed, utilizing the longitudinal vibration excitation and electromechanical admittance (EMA) response of dual lead zirconate titanate (PZT) patches coupled with the specimen. To verify the effectiveness of the proposed method, theoretical derivation, finite element simulation and experimental research were carried out respectively. The theoretical derivation results show that the first-order longitudinal vibration mode frequency of the beam specimen coupled with dual PZT patches can be extracted through the real part of EMA response. Simulation results of six kinds of wood specimens show that the dual PZT patch transducer can effectively excite the first-order longitudinal vibration mode of the specimen, the main peak that corresponds to the first-order longitudinal vibration mode of the specimen exists in the EMA response, and the relative errors of the measurement results are less than 0.35%. The experimental results of nine sorts of wood specimens demonstrate that the relative errors are less than 0.6% compared with the corresponding results measured by the existing longitudinal vibration method. These test results verify the effectiveness of the new method.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 5","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148380576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model sharing for near-infrared analysis of lignin content in pulpwood based on hybrid calibration combined with LSTM algorithm 基于混合定标与LSTM算法的近红外木质素含量分析模型共享

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-06-04 DOI: 10.1007/s00226-026-01782-7

Ying Wang, Xinyu Chen, Qiaolin Ye, Jie Yang, Xianzhi Wu, Yijie Lu, Zhixin Xiong, Long Liang

{"title":"Model sharing for near-infrared analysis of lignin content in pulpwood based on hybrid calibration combined with LSTM algorithm","authors":"Ying Wang, Xinyu Chen, Qiaolin Ye, Jie Yang, Xianzhi Wu, Yijie Lu, Zhixin Xiong, Long Liang","doi":"10.1007/s00226-026-01782-7","DOIUrl":"10.1007/s00226-026-01782-7","url":null,"abstract":"<div>Monitoring the lignin content in pulpwood is essential for timely adjustments of the pulping process and optimization of process parameters. Near-infrared (NIR) spectroscopy, as a fast and non-destructive technique, provides an important means to detect the chemical composition of pulpwood. As benchtop and handheld NIR spectrometers become more widely used, the ability to share analytical models between them would significantly reduce the cost and time required for model development and increase the efficiency of model application. In this study, a benchtop spectrometer (S450) and a handheld spectrometer (NeoSpectra) were utilized to collect NIR spectral data on a total of 174 pulpwood samples, respectively. Based on the lignin content of the pulpwood samples and their near-infrared spectra collected on the two spectrometers, four methods, namely, partial least squares regression (PLSR), support vector regression (SVR), random forest (RF), and long short-term memory (LSTM), were used to build the hybrid models, and the predictive and sharing performances of the models were compared and analyzed. To further optimize the models and enhance their accuracy, feature wavelength selection strategies, such as elimination of uninformative variables (UVE) and competitive adaptive reweighted sampling (CARS), were employed to improve the models. The results showed that the hybrid model incorporating the UVE-LSTM approach performed the highest sharing capability, with coefficient of determination (R2) values of 0.99 and 0.92 on the benchtop and handheld spectrometers, respectively. Therefore, a hybrid calibration approach, which combines deep learning algorithms with suitable wavelength selection techniques, significantly boosts the model’s robustness and generalization ability and successfully achieves the best performance on benchtop and handheld NIR spectrometers for model sharing of lignin content in pulpwood.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of genotype on selected properties of young plantation-grown Eucalyptus pellita F. Muell. and its hybrids for structural applications 基因型对育成幼桉选择性状的影响。以及用于结构应用的混合动力车

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-06-04 DOI: 10.1007/s00226-026-01785-4

Oluwatosin Esther Falade, Antanas Spokevicius, Barbara Ozarska, Gerd Bossinger, Listya Mustika Dewi, Umar Ibrahim, Johannes Fehrmann, Bala Thumma, Benoit Belleville

{"title":"Effect of genotype on selected properties of young plantation-grown Eucalyptus pellita F. Muell. and its hybrids for structural applications","authors":"Oluwatosin Esther Falade, Antanas Spokevicius, Barbara Ozarska, Gerd Bossinger, Listya Mustika Dewi, Umar Ibrahim, Johannes Fehrmann, Bala Thumma, Benoit Belleville","doi":"10.1007/s00226-026-01785-4","DOIUrl":"10.1007/s00226-026-01785-4","url":null,"abstract":"<div>Short-rotation plantation hardwoods are increasingly used to meet timber demand but are often harvested before optimal structural properties are achieved. This limits their suitability for high-value timber applications. Improving the mechanical properties of young trees through selective breeding is a viable strategy, particularly when supported by molecular tools. However, limited information exists on how genetic and phenotypic variation influence structural traits across the stem profile. This study assessed variation in the mechanical properties of Eucalyptus pellita and its hybrids to support breeding for structural timber. Modulus of elasticity (MOE), modulus of rupture (MOR), and compressive strength (CS) were measured in inner and outer wood across multiple stem heights. These traits were correlated with physical properties, growth, and chemical traits. A single nucleotide polymorphism (SNP)-based genetic association analysis was also conducted. Outer wood and middle stem positions showed the highest values, with MOE up to 17,700 MPa, MOR up to 147 MPa, and CS up to 70 MPa, particularly in the E. pellita × E. brassiana hybrid. Mechanical traits correlated positively with height and diameter at breast height, while microfibril angle was negatively associated with CS (r = − 0.30 inner; − 0.24 outer). Lignin content showed positive associations with MOR and CS. SNP-based genetic analysis identified loci linked to MOE and MOR, including SNP4096 near Eucgr.A00211, a candidate gene potentially involved in cell wall regulation and wood strength. These findings highlight the potential of combining phenotypic and genomic tools to improve the selection of fast-grown hardwoods for high-value structural applications.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-026-01785-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Online monitoring of the hygromechanical properties of spruce tracheid cell walls at the nanoscale 云杉管胞细胞壁水力学特性的纳米尺度在线监测

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-06-01 DOI: 10.1007/s00226-026-01780-9

Raphaël Coste, Véronique Aguié–Béghin, Hugues Clivot, Dominique Derome, Michaël Molinari, Brigitte Chabbert

{"title":"Online monitoring of the hygromechanical properties of spruce tracheid cell walls at the nanoscale","authors":"Raphaël Coste, Véronique Aguié–Béghin, Hugues Clivot, Dominique Derome, Michaël Molinari, Brigitte Chabbert","doi":"10.1007/s00226-026-01780-9","DOIUrl":"10.1007/s00226-026-01780-9","url":null,"abstract":"<div>Atomic Force Microscopy in PeakForce Quantitative NanoMechanics mode (AFM PeakForce QNM) under controlled relative humidity (RH) was applied to continuously monitor the indentation modulus (IM) of Norway spruce (Picea abies) earlywood (EW) and latewood (LW) tracheid cell walls over three absorption/desorption (S/D) cycles. The IM of the different cell wall layers were close between early- and latewoods indicating small differences between their chemical compositions. AFM nanoInfraRed measurements (AFM NanoIR) indicate variations in lignin and cellulose with an increase of lignin and a decrease of cellulose from the S2 to the S1 and finally to the CC (cell corner). Earlywood and latewood cell walls display the same hygronanomechanical behavior during S/D cycle, i.e., the IM values decrease during absorption up to 85% and re–increase during desorption. Gaussian fits of the IM distribution were narrower for late wood than early wood and vary with the type of layer and with the relative humidity. The responses of the indentation moduli to RH of the cell wall layers in early- and latewood were fitted according to a three-parameter logistic function. Significant differences are observed for the S2 in both EW and LW indicating a higher slope in the response of indentation moduli to RH between 15 and 50% RH in desorption as compared to absorption. For both desorption and absorption, the comparison between EW vs. LW reveals differences in CC and S1, with a higher slope in moduli response to RH in LW between 15 and 50% RH and the opposite between 50 and 85% RH.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148172619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of elastic constitutive parameters of high-density fiberboard using digital image correlation and finite element model updating 基于数字图像相关和有限元模型更新的高密度纤维板弹性本构参数的确定

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-05-26 DOI: 10.1007/s00226-026-01774-7

Zanbin Zhu, Lulu Yan, Shoufu Gong

{"title":"Determination of elastic constitutive parameters of high-density fiberboard using digital image correlation and finite element model updating","authors":"Zanbin Zhu, Lulu Yan, Shoufu Gong","doi":"10.1007/s00226-026-01774-7","DOIUrl":"10.1007/s00226-026-01774-7","url":null,"abstract":"<div>To elucidate the influence of wood fiber size distribution and resin content on the elastic constitutive behavior of high-density fiberboard (HDF), a transversely isotropic constitutive model was used based on the mat-forming and hot-pressing processes and the characteristic density profile of HDF. Displacement fields under three-point bending were obtained experimentally using digital image correlation (DIC), analytically from Timoshenko beam theory, and numerically through finite element model updating (FEMU). These displacement fields were integrated to identify five independent elastic constitutive parameters— transverse elastic modulus, longitudinal elastic modulus, longitudinal shear modulus, transverse Poisson's ratio, and longitudinal Poisson's ratio—by means of nonlinear least-squares optimization. The identified parameters were compared among HDF specimens manufactured with different wood fiber size distributions and resin contents. Furthermore, the microscopic fracture morphologies of bending failure surfaces were analyzed to clarify the underlying mechanisms by which fiber size distribution and resin content affect the mechanical performance of HDF. The results demonstrate that the mechanical properties of HDF exhibit pronounced directional dependence, which is governed by fiber interweaving, fiber–resin interfacial bonding, and internal pore defects. Fine fibers fill internal pores and reduce structural defects, while medium and long fibers form the primary load-bearing framework. Excessive coarse fibers hinder fiber interlocking and promote pore formation, degrading mechanical performance. Increasing resin content enhances interfacial bonding, thereby improving static bending strength and elastic moduli. This study provides a methodological reference for characterizing the parameters of wood-based materials such as HDF.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water sorption in wood: temperature and extractive influence on heat of sorption 木材的吸水性：温度和萃取剂对吸收热的影响

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-05-26 DOI: 10.1007/s00226-026-01781-8

Jingbo Shi, Fuji Zhou, Luxiao Qian, Huijun Dong, Jiabin Cai, Jianxiong Lv, Stavros Avramidis

{"title":"Water sorption in wood: temperature and extractive influence on heat of sorption","authors":"Jingbo Shi, Fuji Zhou, Luxiao Qian, Huijun Dong, Jiabin Cai, Jianxiong Lv, Stavros Avramidis","doi":"10.1007/s00226-026-01781-8","DOIUrl":"10.1007/s00226-026-01781-8","url":null,"abstract":"<div>The heat of sorption ((:{Q}_{L})) of four high extractive content woods—western red cedar, Chinese juniper, tubi and messmate—were determined using an isosteric approach based on previously collected water sorption isotherm data at 30, 45, 60, 75, 90 and 99.5 ℃. The isotherm data at every single temperature ((:T)) was fitted using the Hailwood-Horrobin (HH) model. The resulting (:{Q}_{L}) versus moisture content ((:M)) plot displays a characteristic peak in the low (:M) region. This peak is sensitive to the sorption data selected and can be complicated by overfitting of the HH model. In contrast, when sorption data from all (:T) levels were fitted using the multi-temperature Heikkilä model, the predicted (:{Q}_{L}) versus (:M) curves closely aligned with findings obtained from the calorimetric method. The Heikkilä model suggests that (:{Q}_{L}) varies with (:T) throughout the entire hygroscopic range and specifically decreases with increasing (:T). Other multi-temperature models being evaluated, including the Chung-Pfost, Day-Nelson and Zuritz models, were less reliable in predicting (:{Q}_{L}) values and their dependence on (:T). Both the HH and Heikkilä models indicate that as (:M) approaches zero, the (:{Q}_{L}) values for untreated samples are higher than those for extracted samples. This suggests that the adsorbed water molecules can disrupt the weak physical interactions between wall polymers and extractive molecules. Consequently, this process can lead to stable or even increased (:{Q}_{L}) values if more available sorption sites are exposed in the swollen cell walls due to the deposition of extractives.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148173106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ synthesis of carbon quantum dots in wood for enhanced decay resistance 原位合成碳量子点增强木材抗腐性能

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-05-21 DOI: 10.1007/s00226-026-01778-3

Xinyi Chen, Yanan Dong, Lei Yu, Xiaoqi Zhao, Meng Zhou, Jinzhen Cao

{"title":"In-situ synthesis of carbon quantum dots in wood for enhanced decay resistance","authors":"Xinyi Chen, Yanan Dong, Lei Yu, Xiaoqi Zhao, Meng Zhou, Jinzhen Cao","doi":"10.1007/s00226-026-01778-3","DOIUrl":"10.1007/s00226-026-01778-3","url":null,"abstract":"<div>Wood is a naturally porous material that is highly susceptible to fungal degradation, which significantly limits its practical applications. In this study, carbon quantum dots (CQDs) were in-situ synthesized in wood substrates through a urea pretreatment with concentrations of 4, 8, 12, 16, 20% and microwave-assisted synthesis method, utilizing wood and urea as carbon/nitrogen sources respectively. The resulting CQDs-wood exhibited significant antifungal effects against Gloeophyllum trabeum by decreasing the mass loss of wood samples from 48.0% (untreated control) to 2.89% (16% urea pretreated) during the standard decay test. The CQDs extracted from CQDs-wood showed complete inhibition of fungal hyphal growth at 16% urea concentration, while urea itself exhibited negligible antifungal effects. This indicates that the enhanced decay resistance of CQDs-wood primarily originates from in-situ synthesized CQDs. Lignin in wood was found to be the primary carbon source for the formation of CQDs. The antifungal mechanism was further discussed. These findings highlight the potential of using the in-situ synthesis of CQDs as an efficient wood preservation strategy, which can significantly prolong the service life of wood.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive pyrolysis modeling of flame-retardant densified wood: development and validation of a multistep reaction scheme 阻燃致密木材的综合热解模型：多步反应方案的开发和验证

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-05-21 DOI: 10.1007/s00226-026-01779-2

Yang Zhou, Xinxi Wang, Zhengyang Wang, Chao Ding, Tianyang Chu, Yan Ding

{"title":"Comprehensive pyrolysis modeling of flame-retardant densified wood: development and validation of a multistep reaction scheme","authors":"Yang Zhou, Xinxi Wang, Zhengyang Wang, Chao Ding, Tianyang Chu, Yan Ding","doi":"10.1007/s00226-026-01779-2","DOIUrl":"10.1007/s00226-026-01779-2","url":null,"abstract":"<div>Densified wood (DW) is a promising sustainable structural material with excellent mechanical performance, whose fire safety can be significantly enhanced through flame-retardant treatment. However, comprehensive pyrolysis models for flame-retardant densified wood (FRDW) remain limited. In this study, ammonium dihydrogen phosphate (ADP)-impregnated densified wood (DW-ADP) was prepared and its pyrolysis and combustion behaviors were investigated through experiments and numerical simulations. Compared with untreated DW, DW-ADP exhibited lower pyrolysis temperatures, increased char yield, delayed ignition, and reduced heat release due to the catalytic effect of ADP. Pyrolysis models for DW, ADP, and DW-ADP were developed via inverse analysis and parameter optimization using microscale characterization data. Initial DW-ADP models based on either parallel integration of DW and ADP reactions scheme or full seven-step consecutive reaction scheme reproduced microscale characterization curves but failed to predict combustion characteristics. A modified ‘1 + 6’ reaction scheme, incorporating an extractive pyrolysis reaction in parallel with six consecutive reactions, was therefore proposed. This model accurately reproduced experimental combustion behavior, with prediction uncertainties below 20% for key parameters under 50 kW m− 2 irradiation. These results provide a robust basis for predictive fire modeling and support the rational design and broader application of FRDW in fire-safe structural materials.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148009265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wood modification by in situ polymerization of non-isocyanate polyurethane using biobased erythritol bis(carbonate) and polyamines 用生物基赤藓糖醇（碳酸酯）和多胺原位聚合非异氰酸酯聚氨酯改性木材

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-05-08 DOI: 10.1007/s00226-026-01766-7

Pierre Vinchelin, Philippe Gérardin, Laura Figel, Emmanuel Fredon

{"title":"Wood modification by in situ polymerization of non-isocyanate polyurethane using biobased erythritol bis(carbonate) and polyamines","authors":"Pierre Vinchelin, Philippe Gérardin, Laura Figel, Emmanuel Fredon","doi":"10.1007/s00226-026-01766-7","DOIUrl":"10.1007/s00226-026-01766-7","url":null,"abstract":"<div>Wood modification is proposed as an environmentally friendly alternative to conventional preservative treatments, with the aim of improving biological durability and dimensional stability without the use of biocidal compounds. In this study, a new approach by in situ polymerization of non-isocyanate polyurethanes (NIPUs) was investigated for beech (Fagus sylvatica L.) and Scots pine (Pinus sylvestris L.). Erythritol bis(carbonate) (ECC) synthesized from erythritol and dimethyl carbonate (DMC) was used as a biobased precursor. Impregnation of both species with ECC and hexamethylenediamine (HMDA) or tris(2-aminoethyl)amine (TAEA) solubilized in dimethylformamide (DMF), followed by heating, resulted in the formation of NIPUs in the wood structure. Spectroscopic analyses (Infrared, Nuclear Magnetic Resonance) confirmed polymer formation, while Scanning Electron Microscopy observations revealed the presence of NIPU in the wood cell wall and lumens. Despite partial leaching, significant mass gains (18–32%) and bulking effects indicated polymer retention and interaction with the wood. At a high temperature of 120 °C, the use of TBD catalyst was responsible for secondary reactions so ECC + HMDA (1:1) without catalyst at 80 °C was identified as the best route to form NIPU. For modified Scots pine, dimensional stability tests showed anti-swelling efficiency up to 37% and preliminary degradation resistance assessments showed a mass loss < 1.5% with the brown rot fungus Coniophora puteana. These results constitute a feasibility study for wood modification with biobased NIPUs, highlighting the potential of cyclic carbonates derived from natural sugars as a sustainable alternative to conventional treatments.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound activation of PS/H2O2 dual oxidants synergistically enhances porosity and wettability of poplar wood 超声活化PS/H2O2双氧化剂可协同提高杨木的孔隙度和润湿性

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2026-05-08 DOI: 10.1007/s00226-026-01776-5

Yulin Shen, Junzhu Xiao, Xiaolei Shi, Minhua Huang, Yubo Cheng, Lili Li, Qian Yan, Lihong Yao

{"title":"Ultrasound activation of PS/H2O2 dual oxidants synergistically enhances porosity and wettability of poplar wood","authors":"Yulin Shen, Junzhu Xiao, Xiaolei Shi, Minhua Huang, Yubo Cheng, Lili Li, Qian Yan, Lihong Yao","doi":"10.1007/s00226-026-01776-5","DOIUrl":"10.1007/s00226-026-01776-5","url":null,"abstract":"<div>Inherent extractive occlusion and underdeveloped pore networks severely restrict the permeability and high-value utilization of fast-growing poplar wood. This study aimed to achieve precise pore structure regulation by constructing an ultrasound-activated persulfate-hydrogen peroxide (PS/H2O2) dual oxidant system. The effects of PS/H2O2 molar ratios (9:1, 7:3, 5:5) and ultrasonic power levels (100–400 W) on the porosity, specific surface area, wettability, and microstructure of poplar wood were systematically investigated. Characterization was performed using mercury intrusion porosimetry (MIP), Brunauer-Emmett-Teller (BET) analysis, contact angle measurements, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). Results showed that the synergistic effect of ultrasonic cavitation and dual radicals (SO4·–and ·OH) achieved optimal pore modification under the conditions of PS: H2O2 molar ratio 7:3 and ultrasonic power 400 W. The cumulative pore volume of poplar wood reached 2.82 mL/g, representing a 102% increase compared with the untreated sample, accompanied by a specific surface area of 1.2784 m2/g and a median pore diameter of 0.8262 nm. Meanwhile, the contact angle decreased from 96° to 74.9°, indicating significantly enhanced surface wettability. FT-IR and XRD analyses confirmed that the treatment only caused slight degradation of the main wood components, effectively maintaining the structural integrity of the cell wall. This study demonstrates that the ultrasound-activated PS/H2O2 dual oxidant system provides a mild and efficient technical approach for improving the pore structure of fast-growing wood, which is expected to promote its application in functional modification and bio-based material fields.</div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"60 4","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147828618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0