Journal of Wood Chemistry and Technology最新文献

{"title":"Effects of physicochemical characteristics on natural durability of eucalypts woods to wood-decaying fungi","authors":"Pedro Nicó de Medeiros Neto, Juarez Benigno Paes, Fabricio Gomes Gonçalves, Yonny Martínez López, Nédia Pereira Correia Mendes Correia, Renato Nogueira Antas","doi":"10.1080/02773813.2024.2303405","DOIUrl":"https://doi.org/10.1080/02773813.2024.2303405","url":null,"abstract":"This study aimed to relate the biological resistance of seven eucalypt woods to wood-decaying fungi with physicochemical characteristics of wood. Two 12-year-old trees per species were randomly sam...","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139507971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A zero-waste one step method to produce carboxy nanocellulose from the untreated barley and wheat straws","authors":"Sanmitra Barman, Sambhunath Bera","doi":"10.1080/02773813.2024.2303038","DOIUrl":"https://doi.org/10.1080/02773813.2024.2303038","url":null,"abstract":"A zero-waste simple method was developed to produce carboxy nanocellulose directly from the untreated barley and wheat straw by treating with nitric acid (55%) and sodium nitrite at 40 °C for 12 h....","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139458541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acid-catalyzed Kraft lignin liquefaction for producing polyols and polyurethane foams","authors":"K. T. Barbosa, Silvia Helena Fuentes Da Silva, Washington Luiz Esteves Magalhães, Sandro Campos Amico, Rafael de Avila Delucis","doi":"10.1080/02773813.2024.2303036","DOIUrl":"https://doi.org/10.1080/02773813.2024.2303036","url":null,"abstract":"This study investigates the use of acid-catalyzed lignin liquefaction for the production of polyols and polyurethane foams. The liquefaction process was carried out using a kraft lignin powder foll...","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139501048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micro-mechanism analysis of the influence of sawdust with different replacement ratio on concrete performances","authors":"Te Li, Laire Tier","doi":"10.1080/02773813.2023.2299807","DOIUrl":"https://doi.org/10.1080/02773813.2023.2299807","url":null,"abstract":"As a waste of wood processing, a large accumulation of sawdust will have an impact on the environment. In this paper, sawdust is added to concrete to explore the influence of sawdust on the perform...","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139422861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anti-inflammatory, antioxidant, and antitermite valorization of extractable substances from the heartwood of four major species of the Gabonese forest-timber sectors","authors":"C. S. A. Bopenga Bopenga, L. Mengome, M.-A. N’negue ép Mezui-Mbeng, Hervise Harmand Ndinga, Edou Engonga Prosper","doi":"10.1080/02773813.2023.2293704","DOIUrl":"https://doi.org/10.1080/02773813.2023.2293704","url":null,"abstract":"","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of delignification depth of wood surfaces for skin polymer impregnation","authors":"Kyoung-Chan Park, Byeongho Kim, Hanna Park, Yesun Kim, Nam-Hun Kim, Se-Yeong Park","doi":"10.1080/02773813.2023.2284157","DOIUrl":"https://doi.org/10.1080/02773813.2023.2284157","url":null,"abstract":"We controlled the degree of surface delignification of a wood specimen to impart functionality to its surface and injected a polymer into the porous structure to investigate using it as a functiona...","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138513305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of wood preservatives to prevent biodeterioration","authors":"Himadri Rajput, Preethi Rajan, Shujun Li, Glenn W. Stratton, Gordon Murray, Quan (Sophia) He","doi":"10.1080/02773813.2023.2284161","DOIUrl":"https://doi.org/10.1080/02773813.2023.2284161","url":null,"abstract":"Wood is a widely available material that has long been used in various applications. Protection of wood products from degradation due to biotic and abiotic factors is crucial. Traditional wood pres...","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138513294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing packaging grade kraft pulp yield by using sodium methyl mercaptide","authors":"Ravikant Patil, Adriaan van Heiningen","doi":"10.1080/02773813.2023.2274091","DOIUrl":"https://doi.org/10.1080/02773813.2023.2274091","url":null,"abstract":"","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135872406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure and property variations of mixed hardwood kraft lignins","authors":"Xiao Jiang, Runkun Sun, Matthew Kollman, Hou-min Chang, Hasan Jameel","doi":"10.1080/02773813.2023.2262974","DOIUrl":"https://doi.org/10.1080/02773813.2023.2262974","url":null,"abstract":"AbstractKraft lignin as an emerging renewable feedstock can be used to produce fuels, chemicals, and materials. Hardwood kraft lignin bears intrinsic variation due to wood species and the isolation process. The structure and property variation of hardwood kraft lignin could introduce new challenges and opportunities for its application. To better understand such variation, seven kraft lignin samples, originated from southern mixed hardwood (North America), northern mixed hardwood (North America), and Asian mixed hardwood, were isolated from commercial kraft pulping black liquor using both LignoBoost and LignoForce processes. Modern analytical techniques were used to elucidate the characteristics of mixed hardwood kraft lignins, including chemical composition, molecular weight, functional groups, and thermal properties. All lignin samples had a lignin content over 90% (92% to 96%) with one exception, which was northern mixed hardwood kraft lignin with 86% of lignin content and 6% polysaccharides. The elemental and methoxy analyses revealed the expected variation of hardwood kraft lignins with the methoxy content ranging from 0.85 to 1.20 per C9 unit. The weight average molecular weight exhibited a higher variation (from 4800 to 1895 Da) with a descending order of southern mixed hardwood kraft lignins, northern mixed hardwood lignins, and Asian mixed hardwood lignins. The aliphatic hydroxy groups ranged from 14 to 25 per 100 C9 units, and phenolic hydroxy groups ranged from 65 to 112 per 100 C9 units. The catecholic group content ranged from 12 to 34 per 100 C9 units, which is higher than softwood kraft lignin. The lignins isolated from the rapid displacement heating (RDH) pulping process were more condensed than from the regular kraft pulping process. 2D HSQC and quantitative 13C NMR revealed the drastic structure change upon kraft pulp with the low abundance of native lignin linkages and formation of new interunit linkages, such as stilbene, enol ethers, and 1-1’/5’. The S/G ratio was calculated using 2D HSQC spectra correcting for signal shift caused by the catecholic groups.Keywords: Mixed hardwoodkraft ligninchemical structurevariation Authors’ contributionsXiao Jiang and Runkun Sun contributed equally to this work.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors greatly appreciate the financial support from Domtar and Chung Hua Paper Company for this research project.","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and characterization of plywood panels using recycled HDPE as a formaldehyde-free adhesive: A comparative study","authors":"A. Ashori, V. Heydari, N. Ayrilmiş","doi":"10.1080/02773813.2023.2251463","DOIUrl":"https://doi.org/10.1080/02773813.2023.2251463","url":null,"abstract":"Abstract Formaldehyde-based resins such as urea-formaldehyde (UF) are the most widely used adhesives in the plywood industry. However, due to the concerns about formaldehyde toxicity, there is a need to develop formaldehyde-free adhesive materials. Therefore, the present study aimed to minimize or eliminate the harmful effects of UF resin by using recycled high-density polyethylene (HDPE) from post-consumed fruit packing boxes as a nontoxic adhesive. Three-layer plywood panels using poplar veneers and recycled HDPE films were prepared. UF was used as a control adhesive for the comparison. The influence of three variable parameters in terms of HDPE content (from 80 to 320 g/m2), hot-pressing temperature (from 140 to 180 °C), and pressing duration (from 3 to 8 min) on the properties of plywood panels were evaluated. For evaluation, physical properties, namely water absorption (WA), thickness swelling (TS), and mechanical properties, namely modulus of elasticity (MOE), modulus of rupture (MOR), and glue-line shear strength of the samples, were studied. The findings of this work confirmed that HDPE films gave the values of mechanical properties of plywood panels comparable to those obtained with UF adhesive, even though the adhesive content and pressing time were lower than when the UF adhesive was used. The obtained bonding strength values of HDPE-bonded plywood panels ranged from 0.82 to 1.60 MPa and met the requirement for the European Standard EN 314-2. According to FE-SEM micrographs, the fractured surface of plywood panels with 240 g/m2 of HDPE displayed a homogeneous cross-section area, and a large amount of HDPE was attached to the veneer surfaces. It was found that the average mechanical properties tended to increase with an increase in the pressing temperature and time. The type of adhesive had a significant effect on WA and TS. The smallest values of WA and TS were observed in plywood samples using high contents of HDPE films (240 and 320 g/m2). The optimum conditions were an HDPE loading of 240 g/m2, a hot-pressing temperature of 160 °C, and a hot-pressing time of 5 min. The overall results showed that recycled HDPE had enough potential to reuse as a promising adhesive for the environmentally-friendly plywood manufacturing.","PeriodicalId":17493,"journal":{"name":"Journal of Wood Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48728882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}