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Lapachol from Indonesian teak (Tectona grandis) wood waste as a natural additive for alkaline cooking 从印度尼西亚柚木(Tectona grandis)废料中提取的 Lapachol 作为碱性烹饪的天然添加剂
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-03-05 DOI: 10.1007/s00226-024-01537-2
Esty Octiana Sari, Syelvia Putri Utami, Akiko Nakagawa-Izumi, Hiroshi Ohi
{"title":"Lapachol from Indonesian teak (Tectona grandis) wood waste as a natural additive for alkaline cooking","authors":"Esty Octiana Sari,&nbsp;Syelvia Putri Utami,&nbsp;Akiko Nakagawa-Izumi,&nbsp;Hiroshi Ohi","doi":"10.1007/s00226-024-01537-2","DOIUrl":"10.1007/s00226-024-01537-2","url":null,"abstract":"<div><p>Anthraquinone has been widely utilized in the pulp and paper industry as a catalyst for alkaline cooking; however, its application has been recently restricted due to its potential carcinogenic effects. Hence, safer alternatives to anthraquinone have been explored. Agro-industrial by-products have been utilized as sustainable sources of value-added materials. In this study, teak (<i>Tectona grandis</i>) wood waste from Gunung Kidul, Indonesia, which naturally contains lapachol, was utilized as a biocatalyst to enhance delignification and improve pulp yield in alkaline cooking for pulp and paper production. The use of lapachol as a cooking catalyst was investigated for kraft, soda, and prehydrolysis soda cooking. Lapachol accelerated delignification and retained carbohydrate in all three alkaline cooking methods, with its effect being more pronounced in kraft cooking than in soda cooking. This study demonstrates that teak wood extractives with lapachol are promising sustainable catalysts for alkaline cooking.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"627 - 647"},"PeriodicalIF":3.1,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037244","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
Novel bamboo-based metal composites prepared with a high-efficiency thermal spraying method: a preliminary study 用高效热喷涂法制备新型竹基金属复合材料:初步研究
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-28 DOI: 10.1007/s00226-024-01538-1
Jipeng Chen, Linghao Wang, Hongping Zhou
{"title":"Novel bamboo-based metal composites prepared with a high-efficiency thermal spraying method: a preliminary study","authors":"Jipeng Chen,&nbsp;Linghao Wang,&nbsp;Hongping Zhou","doi":"10.1007/s00226-024-01538-1","DOIUrl":"10.1007/s00226-024-01538-1","url":null,"abstract":"<div><p>Bamboo is one of the green building materials that have been used for centuries. Combining with metal materials will endow bamboo with new functions, such as weather resistance, anti-corrosion, conductivity, and electromagnetic shielding. However, there is a natural barrier between bamboo and metal materials. This paper proposes fabrication of novel bamboo-based metal composites (BMC) which are composed of bamboo substrate and metal coating, without any adhesive, using an efficient and sustainable arc thermal spraying technique. In this method, the metal wire is melted and deposited on the bamboo substrate through a high-temperature heat source. In the feasibility experiment, arc spraying using aluminum as the wire electrode was selected. Scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) were used to observe and test the fabricated specimens. It was demonstrated that when the spraying voltage was 40 V, the deposition rate was as high as 5.8 g/min with the average thickness of the metal coating exceeding 400 μm. The surface of the BMC aluminum coating was flat, continuous, and compact with an average roughness of about Ra 3.0 μm. Based on experimental results, the integrity of bamboo substrate in thermal spraying was discussed. Results from SEM–EDS test showed that there are crack areas and adhesion areas between bamboo and metal coatings, and the highest bonding strength exhibited over 1.0 MPa. This work provides a new practice of fabricating novel BMC through a green manufacturing method with high efficiency. The findings of this study may be useful in understanding the preparation of BMC and can help find their suitability for a wide range of applications.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"487 - 502"},"PeriodicalIF":3.1,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140003336","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
Analysis of effective elastic parameters of natural bamboo honeycomb cell structure 天然竹蜂窝结构的有效弹性参数分析
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-27 DOI: 10.1007/s00226-024-01536-3
Minggong Yu, Zhangheng Wang, Xiawang Jiang, Le Gong, Ling Song, Delin Sun
{"title":"Analysis of effective elastic parameters of natural bamboo honeycomb cell structure","authors":"Minggong Yu,&nbsp;Zhangheng Wang,&nbsp;Xiawang Jiang,&nbsp;Le Gong,&nbsp;Ling Song,&nbsp;Delin Sun","doi":"10.1007/s00226-024-01536-3","DOIUrl":"10.1007/s00226-024-01536-3","url":null,"abstract":"<div><p>Bamboo is an environmentally friendly building structural material. This work investigated the cavity structural characteristics and physical and mechanical properties of honeycomb sandwiches and natural bamboo in the longitudinal direction. The effective elastic parameters of periodically arranged hexagonal bamboo honeycomb cells under in-plane and out-of-plane loads were modeled using analytical and numerical approaches. Then, the effective elastic parameter model of bamboo honeycomb cells was validated by experiments and finite element analysis. The average errors between the calculated and experimental equivalent modulus of elasticity, Poisson’s ratio, and shear modulus in the three principal axis directions were 7.43, 4.37, and 8.68%, respectively. The average relativities between the model values of the elastic parameters of the bamboo honeycomb cell and the simulation results in the three directions were 5.46, 5.40, and 6.12%, respectively. The experimental and finite element analysis showed that the constructed effective elastic parameter model of the bamboo honeycomb cell better reflected the state of the bamboo core when subjected to force. This study provides insights for further research on the mechanical properties of bamboo materials and their application in bamboo-based lightweight and high-strength sandwich structures.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"741 - 771"},"PeriodicalIF":3.1,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140003148","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
Removal of wood volatile organic compounds using ozone-activated persulfate system from China fir wood powder samples 利用臭氧活化过硫酸盐体系去除中国杉木粉末样品中的木材挥发性有机化合物
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-21 DOI: 10.1007/s00226-024-01535-4
Yulin Shen, Yisheng Zhu, Wenfan Yu, Shifeng Zhang, Changlei Xia, Su Shiung Lam
{"title":"Removal of wood volatile organic compounds using ozone-activated persulfate system from China fir wood powder samples","authors":"Yulin Shen,&nbsp;Yisheng Zhu,&nbsp;Wenfan Yu,&nbsp;Shifeng Zhang,&nbsp;Changlei Xia,&nbsp;Su Shiung Lam","doi":"10.1007/s00226-024-01535-4","DOIUrl":"10.1007/s00226-024-01535-4","url":null,"abstract":"<div><p>Wood contains abundant extractives and volatile oils, which release strong odors and hazardous volatile organic compounds (VOCs). The emission of VOCs can be minimized by degrading and mineralizing wood extractives. Wood powder is widely used as raw material for chemical industry, building materials, wood-based boards, and other products. In this study, China fir wood powder was used as object to remove wood VOCs by the ozonation and ozone-activated persulfate (O<sub>3</sub>/PS) systems, and their VOC removal efficiencies were evaluated using gas chromatography–mass spectrometry (HS-SPME/GC–MS). The result showed O<sub>3</sub>/PS system exhibited higher VOC removal efficiency. The mechanism of different ozone processes in wood treatment was explored, which contributed to the evaluation of the removal efficiency of VOCs and the degradation pathway of VOC components. The PS dosage, O<sub>3</sub> concentration, and pH had varying effects on the O<sub>3</sub>/PS system. When the pH increased to 10, the removal rate of wood VOCs decreased. The VOC removal rate did not increase with the increasing free-radical concentration. When the PS concentration increased from 5 to 20 mM, the VOC removal efficiency gradually increased from 49.91 to 72.39%. However, when the PS concentration increased to 40 mM, the VOC removal efficiency of PS slightly decreased because the excess PS immediately produced a large amount of hydroxyl radical (·OH) and sulfate radical (SO<sub>4</sub><sup>·−</sup>), which led to quenching reactions between radicals. The results revealed that the O<sub>3</sub>/PS process promoted indirect oxidation. Under the synergistic effect of O<sub>3</sub>, ·OH, and SO<sub>4</sub><sup>·−</sup>, the VOC removal efficiency was significantly improved, the intermediate product was lower, and the total VOC removal rate VOCs by O<sub>3</sub>/PS was more than 70%.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"677 - 697"},"PeriodicalIF":3.1,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139922524","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
Cesium adsorption ability of charcoal made from Japanese cedar and Japanese oak wood: effect of Fe3+-addition to starting materials 日本杉木和日本橡木制成的木炭的铯吸附能力:起始材料中添加 Fe3+ 的影响
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-20 DOI: 10.1007/s00226-024-01530-9
Takayuki Yamagishi, Sakae Shibutani, Hikaru Suzuki, Shigeru Yamauchi
{"title":"Cesium adsorption ability of charcoal made from Japanese cedar and Japanese oak wood: effect of Fe3+-addition to starting materials","authors":"Takayuki Yamagishi,&nbsp;Sakae Shibutani,&nbsp;Hikaru Suzuki,&nbsp;Shigeru Yamauchi","doi":"10.1007/s00226-024-01530-9","DOIUrl":"10.1007/s00226-024-01530-9","url":null,"abstract":"<div><p>To investigate the effect of Fe-addition on the Cs<sup>+</sup>-adsorption ability (Cs<sup>+</sup>-AA) of woody charcoal, charcoal samples were prepared from Japanese cedar (JC) and Japanese oak (JO) wood impregnated with Fe<sup>3+</sup> at 600 and 800 °C. The residual functional groups of the charcoal samples were examined using infrared-photoacoustic spectroscopy. OH groups were observed in the charcoal made at 600 °C, and no vibrational bands were detectable in the charcoal synthesized at 800 °C. The observation of Raman D-, G-, and G´-bands revealed that all charcoal samples contained sp<sup>2</sup>-carbon atoms but graphitization occurred only in the iron-loaded charcoal made at 800 °C. The Cs<sup>+</sup>-AA of the JC and JO charcoal samples were evaluated based on the adsorption isotherms of an aqueous CsCl (Cs<sup>+</sup>: 33 mg/L) solution. The addition of Fe<sup>3+</sup> to wood had a negative effect on the Cs<sup>+</sup>-AA of the JO charcoal made at 600 °C, but a positive effect on the Cs<sup>+</sup>-AA of the JC charcoal prepared at 800 °C.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"725 - 740"},"PeriodicalIF":3.1,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-024-01530-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139922586","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
Correction: Supercritical CO2 drying of New Zealand red beech to below the fibre saturation point reduces collapse distortion 更正:超临界二氧化碳干燥新西兰红山毛榉至纤维饱和点以下可减少塌陷变形
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-16 DOI: 10.1007/s00226-024-01534-5
Hamish Pearson, Lloyd Donaldson, Mark Kimberley, Bruce Davy
{"title":"Correction: Supercritical CO2 drying of New Zealand red beech to below the fibre saturation point reduces collapse distortion","authors":"Hamish Pearson,&nbsp;Lloyd Donaldson,&nbsp;Mark Kimberley,&nbsp;Bruce Davy","doi":"10.1007/s00226-024-01534-5","DOIUrl":"10.1007/s00226-024-01534-5","url":null,"abstract":"","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"485 - 485"},"PeriodicalIF":3.1,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-024-01534-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140454585","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
Effect of steam explosion pretreatment on chosen saccharides yield and cellulose structure from fast-growing poplar (Populus deltoides × maximowiczii) wood 汽爆预处理对速生杨(Populus deltoides × maximowiczii)木材所选糖类产量和纤维素结构的影响
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-12 DOI: 10.1007/s00226-024-01532-7
Donata Krutul, Jan Szadkowski, Eva Výbohová, Viera Kučerová, Iveta Čabalová, Andrzej Antczak, Dominika Szadkowska, Michał Drożdżek, Janusz Zawadzki
{"title":"Effect of steam explosion pretreatment on chosen saccharides yield and cellulose structure from fast-growing poplar (Populus deltoides × maximowiczii) wood","authors":"Donata Krutul,&nbsp;Jan Szadkowski,&nbsp;Eva Výbohová,&nbsp;Viera Kučerová,&nbsp;Iveta Čabalová,&nbsp;Andrzej Antczak,&nbsp;Dominika Szadkowska,&nbsp;Michał Drożdżek,&nbsp;Janusz Zawadzki","doi":"10.1007/s00226-024-01532-7","DOIUrl":"10.1007/s00226-024-01532-7","url":null,"abstract":"<div><p>The aim of this study was to determine the changes occurring in the wood cellulose of the fast-growing poplar (<i>Populus deltoides</i> × <i>maximowiczii</i>) under the influence of steam explosion (SE) pretreatment. Cellulose from native wood and after pretreatment at 160 and 205 °C was isolated. Cellulose polymerization degree by size exclusion chromatography (SEC) and cellulose crystallinity index by Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) were determined. The profiles of sugars in the native wood and in the solid fraction after pretreatment (using the acid hydrolysis method) were also determined. In addition, the profile of monosaccharides in the liquid fraction obtained after steam explosion and in the liquid fraction after acid hydrolysis of the oligosaccharides were investigated using high-performance liquid chromatography (HPLC). This allowed to determine the change in the yield of hexoses and pentoses in the studied material.</p><p>The behavior of cellulose in wood subjected to steam explosion at 160 and 205 °C and isolated by the Kürschner–Hoffer method was studied by determining the absorption bands of FTIR-ATR spectra. The lateral order index (LOI) of cellulose was calculated from the ratio of the intensity of the corresponding absorption bands A<sub>1422</sub>/A<sub>896</sub> cm<sup>−1</sup>. Total crystallinity index (TCI) of cellulose was calculated from the ratio of the intensity of absorption bands A<sub>1372</sub>/A<sub>2900</sub> cm<sup>−1</sup>. TCI of Kürschner-Hoffer cellulose isolated from wood subjected to steam explosion at 160 and 205 °C decreased by 5.6 and 5.0%, respectively, with regard to the applied temperature. LOI increased in cellulose isolated from wood subjected to steam explosion at 160 °C (by 0.7%) and at 205 °C (by 19.2%) in relation to the index of cellulose isolated from native wood. Kürschner–Hoffer cellulose isolated from wood subjected to steam explosion at 160 and 205 °C exhibited, respectively, a reduced degree of polymerization of about 11% and about 8%. Polydispersity index in Kürschner–Hoffer cellulose was 1% lower after both pretreatments than native sample.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"441 - 458"},"PeriodicalIF":3.1,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-024-01532-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139760979","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
Enzymatic hydrolysis lignin and kraft lignin from birch wood: a source of functional bio-based materials 桦木中的酶水解木质素和牛皮纸木质素:功能性生物基材料的来源
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-10 DOI: 10.1007/s00226-024-01531-8
Edgar Ramirez Huerta, Muhammad Muddasar, Maurice N. Collins
{"title":"Enzymatic hydrolysis lignin and kraft lignin from birch wood: a source of functional bio-based materials","authors":"Edgar Ramirez Huerta,&nbsp;Muhammad Muddasar,&nbsp;Maurice N. Collins","doi":"10.1007/s00226-024-01531-8","DOIUrl":"10.1007/s00226-024-01531-8","url":null,"abstract":"<div><p>In the pursuit of sustainable biomass utilization, this study investigates the hydrothermal treatment of birchwood and its subsequent impact on enzymatic hydrolysis lignin (EHL). Additionally, birchwood undergoes processing with NaOH (4% w/w) within a Parr reactor to precipitate lignin from the black liquor, resulting in lignin-rich substrates (LRSs) which are then subject to thorough characterization. Notably, EHL produced after hydrothermal pretreatment at 190 °C exhibits the highest lignin content at 67%, while kraft lignin (KL) obtained at 140 °C (pH 1.5) produces 65% lignin content. Among these LRSs, the KL sample produced at 190 °C (pH 4) stands out, displaying a robust aromatic skeletal structure and an abundance of methoxyl groups, primarily owing to its high purity. Furthermore, for these LRSs' it is shown that chemical configuration influences their thermal behaviour, allowing the lignin to be tailored for diverse applications, from low melting point materials to carbonaceous materials capable of withstanding temperatures exceeding 700 °C. This comprehensive understanding of the chemical, thermal, and physical attributes of LRSs not only enriches our knowledge of lignin-rich substrates but also paves the way for the development of sustainable bio-based materials, marking a step towards sustainable materials development.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"423 - 440"},"PeriodicalIF":3.1,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00226-024-01531-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139771230","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
Conservation of model degraded pine wood with selected organosilicons studied by XFM and nanoindentation 用 XFM 和纳米压痕法研究模型降解松木与特定有机硅的保护作用
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-10 DOI: 10.1007/s00226-024-01533-6
Magdalena Broda, Joseph E. Jakes, Luxi Li, Olga A. Antipova, Evan R. Maxey, Qiaoling Jin
{"title":"Conservation of model degraded pine wood with selected organosilicons studied by XFM and nanoindentation","authors":"Magdalena Broda,&nbsp;Joseph E. Jakes,&nbsp;Luxi Li,&nbsp;Olga A. Antipova,&nbsp;Evan R. Maxey,&nbsp;Qiaoling Jin","doi":"10.1007/s00226-024-01533-6","DOIUrl":"10.1007/s00226-024-01533-6","url":null,"abstract":"<div><p>Previous research found that some organosilicon treatments proved effective in stabilizing waterlogged wood dimensions during drying. The present research aimed to determine the mechanism of wood stabilization by these chemicals to understand their mode of action. The study used chemically (ChP) and biologically degraded (BP) model Scots pine wood treated with Methyltrimethoxysilane (MTMS), (3-Mercaptopropyl) trimethoxysilane (MPTMS), or 1,3-Bis(diethylamino)-3-propoxypropanol)-1,1,3,3-tetramethyldisiloxane (DEAPTMDS). Synchrotron-based X-ray fluorescence microscopy (XFM) was used to investigate the penetration of organosilicons into the wood cellular structure and cell walls, and nanoindentation was used to study the mechanical properties of the treated wood cell walls. All treatments resulted in high volumetric anti-shrink efficiency (ASE<sub>V</sub>) values of 74–82%, except for MTMS-treated ChP with an ASE<sub>V</sub> of 52%. The multiscale XFM results revealed that all applied organosilicons penetrated throughout the whole wooden blocks and deposited in both cell lumina and cell walls. The retention of all applied organosilicons was highest in BP wood, and so was the dimensional stabilization effect. MTMS-treated ChP had the lowest measured cell wall infiltration, which likely contributed to its lower ASE<sub>v</sub>. DEAPTMDS treatments plasticized the cell walls and resulted in lowered nanoindentation elastic modulus (<i>E</i><sub>s</sub><sup>NI</sup>) and hardness (<i>H</i>) for all types of wood. MTMS and MPTMS had modest effects on cell wall mechanical properties, and the effect depended on the type of wood. The final effect of organosilicon treatment on the dimensional wood stabilization and mechanical properties of wood cell walls depended not only on the type of the applied organosilicon but also the type of wood degradation. This means that the treatment cannot be considered universal, and specific approaches are needed for the conservation of individual wooden objects. Although some mechanisms are now better understood, such as the need for organosilicons to infiltrate the cell walls and the plasticizing effect of DEAPTMDS, other aspects will benefit from a more detailed analysis of the molecular interactions between organosilicons and wood polymers.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"649 - 675"},"PeriodicalIF":3.1,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139760980","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
Physical–chemical properties and hygroscopicity of Brazilian metallurgical charcoal 巴西冶金木炭的物理化学特性和吸湿性
IF 3.1 2区 农林科学
Wood Science and Technology Pub Date : 2024-02-01 DOI: 10.1007/s00226-024-01529-2
Luciano Junqueira Costa, Vinícius Resende de Castro, Paulo Fernando Trugilho, Artur Queiroz Lana, Aylson Costa Oliveira, Michael Douglas Roque Lima, Thiago de Paula Protásio, Angélica de Cássia Oliveira Carneiro, Marcos Oliveira de Paula
{"title":"Physical–chemical properties and hygroscopicity of Brazilian metallurgical charcoal","authors":"Luciano Junqueira Costa,&nbsp;Vinícius Resende de Castro,&nbsp;Paulo Fernando Trugilho,&nbsp;Artur Queiroz Lana,&nbsp;Aylson Costa Oliveira,&nbsp;Michael Douglas Roque Lima,&nbsp;Thiago de Paula Protásio,&nbsp;Angélica de Cássia Oliveira Carneiro,&nbsp;Marcos Oliveira de Paula","doi":"10.1007/s00226-024-01529-2","DOIUrl":"10.1007/s00226-024-01529-2","url":null,"abstract":"<div><p>Wood is exposed to different atmospheric conditions in the production of charcoal due to the occurrence of rainfall and variation in relative humidity. However, there is a lack of scientific information related to charcoal hygroscopicity and desorption capacity depending on water content. Thus, in the present study, we analyzed the influence of carbonization temperature in brick kilns on the hygroscopic capacity of charcoal from a 7-year-old <i>Eucalyptus</i> sp. wood. Charcoal was produced at final temperatures of 340, 380, 420, and 460 °C. Raman spectroscopy, Fourier-transform infrared absorption spectroscopy, scanning electron microscopy, and surface area measurement were performed to identify structural changes in charcoal. The charcoal samples were exposed to six different saline solutions to simulate the relative humidity of the environment, ranging from 33 to 98%, for the determination of the moisture adsorption capacity. The charcoal surface area values ranged from 7.9 (340 °C) to 12.3 m<sup>2</sup> g<sup>−1</sup> (460 °C). Charcoal porosity increased by 14.4% with increasing temperature. The adsorption capacity decreased with the rising final carbonization temperature. An average reduction of 9.9% between the moisture adsorbed by the charcoal samples produced at 340 °C and 460 °C was observed. The increase in surface area and porosity of charcoal as a function of temperature resulted in the loss of environmental moisture adsorption capacity due to the removal of carboxyl and hydroxyl groups in the temperature range analyzed. Physical mechanisms were more relevant in the water–charcoal relationship, which can directly influence the drying process of the bioreducer in stockyards.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"58 2","pages":"503 - 532"},"PeriodicalIF":3.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139670269","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
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