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International Wood Products Journal最新文献

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Impact of different polyethylene glycol wood treatments on the adhesive properties of beech wood 不同聚乙二醇木材处理对山毛榉木材粘合性能的影响
IF 1.1
International Wood Products Journal Pub Date : 2023-01-02 DOI: 10.1080/20426445.2023.2171934
Sabrina Puttmann, Bertil Burian, L. Müller, Marcus Müller
{"title":"Impact of different polyethylene glycol wood treatments on the adhesive properties of beech wood","authors":"Sabrina Puttmann, Bertil Burian, L. Müller, Marcus Müller","doi":"10.1080/20426445.2023.2171934","DOIUrl":"https://doi.org/10.1080/20426445.2023.2171934","url":null,"abstract":"ABSTRACT Modified beech wood, treated with polyethylene glycol (PEG), was examined regarding its adhesive properties. Therefore, beech wood was modified with various molecular weights and amounts of PEG. All variants of the PEG treatment lead to an improved dimensional stability of beech wood samples. Afterwards, three different kinds of adhesive systems were tested on the modified wood. The three adhesive systems were based on phenol-resorcin-formaldehyde (PRF), emulsion-polymer-isocyanate (EPI) and melamine-urea-formaldehyde (MUF). The adhesives were tested according to a delamination test between layers (DIN EN 16351 annex A) and a determination of the longitudinal tensile bonding strength (DIN EN 302-1 A1). The achieved results showed an effective wood modification with suitable bonding properties. The usage of PEG-modified beech in constructive applications such as cross-laminated-timber (CLT) seems to be possible.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"14 1","pages":"34 - 41"},"PeriodicalIF":1.1,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44452564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Surface characterization and paint bonding quality on chemically and thermally modified short rotation teak wood 化学和热改性短旋柚木的表面特性和油漆粘合质量
IF 1.1
International Wood Products Journal Pub Date : 2022-11-08 DOI: 10.1080/20426445.2022.2138908
Nisrina P. Hanifah, Resa Martha, I. Rahayu, W. Darmawan, B. George, P. Gérardin
{"title":"Surface characterization and paint bonding quality on chemically and thermally modified short rotation teak wood","authors":"Nisrina P. Hanifah, Resa Martha, I. Rahayu, W. Darmawan, B. George, P. Gérardin","doi":"10.1080/20426445.2022.2138908","DOIUrl":"https://doi.org/10.1080/20426445.2022.2138908","url":null,"abstract":"ABSTRACT Chemical and thermal modification can change the hydrophilic properties of wood, and thus affect their coating performance. This study determined the surface characteristics of chemically and thermally modified short rotation teak wood. The characteristics studied were surface roughness, surface free energy (SFE), contact angle, wettability, and coating bonding quality. Results show that the surface of short rotation teak became smoother after chemical and thermal modifications; however, surface roughness increased after furfurylation. The total SFE of chemically and thermally modified teak wood decreased after treatment. The decrease in the total SFE caused the decrease in the constant contact angle change rate (K-value). The K-values for water-dispersed polyurethane and acrylic paints were nearly 0, which indicated their lower wettability. The paint bonding quality decreased after accelerated weathering. Short rotation teak with Glycerol-Maleic Anhydride (GMA)-thermal treatment can be considered for exterior applications with a proper selection of paint.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"14 1","pages":"13 - 20"},"PeriodicalIF":1.1,"publicationDate":"2022-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48552303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Finite element modelling and experimental verification of timber halved and tabled scarf joints 木材半切和桌形搭接节点的有限元建模及试验验证
IF 1.1
International Wood Products Journal Pub Date : 2022-10-12 DOI: 10.1080/20426445.2022.2133469
Francesco Mirko Massaro, H. Stamatopoulos, Joacim Andersen, Eirik Brekke-Rasmussen
{"title":"Finite element modelling and experimental verification of timber halved and tabled scarf joints","authors":"Francesco Mirko Massaro, H. Stamatopoulos, Joacim Andersen, Eirik Brekke-Rasmussen","doi":"10.1080/20426445.2022.2133469","DOIUrl":"https://doi.org/10.1080/20426445.2022.2133469","url":null,"abstract":"ABSTRACT Carpentry joints are very common in existing timber structures and they may gain attention for contemporary structures, due to their high degree of reversibility. Therefore, reliable Finite Element (FE) models for carpentry joints can contribute to assessing their capacity and provide a better insight into the parameters influencing their mechanical properties. This paper presents a FE study (using Abaqus) of timber halved-and-tabled scarf joints, together with experimental results. The FE-model considers fracture due to combined shear and tension perpendicular-to-grain by using cohesive zone modelling. Experimental tests on spruce solid timber specimens were performed to validate the model. The specimens were constructed by the use of a CNC-machine. For comparative purposes, two handmade specimens were tested, resulting in a lower load capacity. The FE results showed that initial gaps have a considerable effect on capacity. For certain assumed initial gaps, the FE-model could predict the capacity, however, it underestimated the deformation.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"14 1","pages":"3 - 12"},"PeriodicalIF":1.1,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47108414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The environmental and social impacts of modified wood production: effect of timber sourcing 改性木材生产的环境和社会影响：木材来源的影响
IF 1.1
International Wood Products Journal Pub Date : 2022-09-16 DOI: 10.1080/20426445.2022.2117923
G. Roberts, C. Skinner, G. Ormondroyd
{"title":"The environmental and social impacts of modified wood production: effect of timber sourcing","authors":"G. Roberts, C. Skinner, G. Ormondroyd","doi":"10.1080/20426445.2022.2117923","DOIUrl":"https://doi.org/10.1080/20426445.2022.2117923","url":null,"abstract":"ABSTRACT This study assesses the environmental and social impacts of a modified softwood produced using radiata pine sourced from New Zealand or Chile. The LCA found that differing forestry and transport burdens associated with each location broadly cancelled each other out, giving overall product footprints that were very similar. Boiler gas and phenol-formaldehyde resin were the biggest emitters of GHG emissions, and normalization highlighted toxicity impacts as significant, largely due to the resin input. SLCA hotspots analyses suggest that the forestry sector in Chile has more potential social risks than the equivalent sector in New Zealand. However, each sector scored poorly in different social aspects making it difficult to recommend a sector without introducing subjective judgements. Combining LCA with SLCA is still novel, but this study found it added useful insights into a broader range of impacts associated with sustainable production, especially given the similarity of the environmental LCA results taken alone.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"236 - 254"},"PeriodicalIF":1.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42762283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Review on health status, chemical composition and antimicrobial properties of the four species of the genus Cedrus 雪松属四种植物的健康状况、化学成分及抗菌特性研究进展
IF 1.1
International Wood Products Journal Pub Date : 2022-09-15 DOI: 10.1080/20426445.2022.2118652
Oussama Chauiyakh, A. Et-tahir, Kamal Kettani, A. Cherrat, Atika Benayad, A. Chaouch
{"title":"Review on health status, chemical composition and antimicrobial properties of the four species of the genus Cedrus","authors":"Oussama Chauiyakh, A. Et-tahir, Kamal Kettani, A. Cherrat, Atika Benayad, A. Chaouch","doi":"10.1080/20426445.2022.2118652","DOIUrl":"https://doi.org/10.1080/20426445.2022.2118652","url":null,"abstract":"ABSTRACT This article presents a literature review on the chemical composition, antimicrobial activities of cedar oils, and the main diseases this tree is subjected to. The studies included in this review have drawn upon several databases including Scopus, Springer, ScienceDirect, Web of sciences. The keywords used in data collection were C. atlantica M, C. libani L, C. deodara L, C. brevifolia H, Red ring rot (M'jej), Cubic brown rot (Saboune). Genus Cedrus is rich in bioactive molecules such as himachalenes, atlantones and generally terpenes. These molecules have an important medicinal and cosmetic properties maintained by the inhibition and destruction of many bacteria and fungi, along with other several biological activities. Cedar suffers from pests and fungal attacks, which cause two types of fungal decay: the first one is brown cubic rot caused by Fomitopsis pinicola or Ungulina officinalis, and the red ring rot caused by Trametes pini or Phellinus chrysoloma.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"272 - 285"},"PeriodicalIF":1.1,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42617057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Mechanical properties of samama wood (Antocephalus macrophyllus) after boron and castor bean oil impregnation and heat treatment 硼和蓖麻油浸渍和热处理后沙玛木的力学性能
IF 1.1
International Wood Products Journal Pub Date : 2022-07-03 DOI: 10.1080/20426445.2022.2084590
T. Cahyono, Marini Dwi Lestari, T. Priadi
{"title":"Mechanical properties of samama wood (Antocephalus macrophyllus) after boron and castor bean oil impregnation and heat treatment","authors":"T. Cahyono, Marini Dwi Lestari, T. Priadi","doi":"10.1080/20426445.2022.2084590","DOIUrl":"https://doi.org/10.1080/20426445.2022.2084590","url":null,"abstract":"ABSTRACT This research was conducted to detect changes in the mechanical properties of samama wood (Anthocephalus macrophyllus) after impregnation with boron, castor bean oil, and heat treatment. Samama wood has low durability so samples were impregnated with boric acid followed by impregnation with castor oil in order to achieve some fixation of the boric acid. After impregnation, heat treatments were applied for four hours at 80°C and 160°C. Results showed that the modulus of elasticity (MOE), modulus of rupture (MOR) and hardness of samama wood generally increased after the treatments. Compared with the control, the maximum differences in MOE and MOR were 19.9% and 26.7%, respectively. Castor oil treatment also increased the density and hydrophobicity of the samama wood.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"203 - 208"},"PeriodicalIF":1.1,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45517507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of design load and distribution pattern for wooden classroom chairs in use at secondary schools in Ibadan, Nigeria 尼日利亚伊巴丹中学使用的木制教室椅的设计荷载和分布模式估计
IF 1.1
International Wood Products Journal Pub Date : 2022-05-07 DOI: 10.1080/20426445.2022.2071560
N. A. Adewole, A. Olorunnisola, E. B. Lucas
{"title":"Estimation of design load and distribution pattern for wooden classroom chairs in use at secondary schools in Ibadan, Nigeria","authors":"N. A. Adewole, A. Olorunnisola, E. B. Lucas","doi":"10.1080/20426445.2022.2071560","DOIUrl":"https://doi.org/10.1080/20426445.2022.2071560","url":null,"abstract":"ABSTRACT The absence of an established design load constitutes a challenge to the engineering design of classroom furniture. This study developed a methodology for estimating design loads for single user (SU) and multiple user (MU) wooden classroom chair and desk combinations offered to secondary school students in Ibadan, Oyo State, Nigeria. Service load distribution patterns for the chair and desk members in normal, backward and front-reclining sitting postures were determined for 15 girls and 15 boys using bathroom scales. A T-test was used to compare the significance of the means of the proportions of users’ weights transferred to the chair and the floor. Design loads were 1 kN (SU) and 2.7 kN (MU) for chair and desk configurations, respectively. Each SU and MU leg should be designed to support 35% and 40% of the service loads, respectively. Gender, sitting postures, and chair and desk designs influenced load distribution patterns significantly.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"186 - 193"},"PeriodicalIF":1.1,"publicationDate":"2022-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49650150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wood cells characterization and suitability appraisal of 7- and 9-year-old Cedrela odorata L. (Miliaceae) wood for paper-based products manufacturing 7年和9年生香柏木的木材细胞特征及造纸适宜性评价
IF 1.1
International Wood Products Journal Pub Date : 2022-05-07 DOI: 10.1080/20426445.2022.2071559
P. Dadzie, M. Amoah, P. Inkum, E. Boampong, Victor Owusu Ansah Jnr
{"title":"Wood cells characterization and suitability appraisal of 7- and 9-year-old Cedrela odorata L. (Miliaceae) wood for paper-based products manufacturing","authors":"P. Dadzie, M. Amoah, P. Inkum, E. Boampong, Victor Owusu Ansah Jnr","doi":"10.1080/20426445.2022.2071559","DOIUrl":"https://doi.org/10.1080/20426445.2022.2071559","url":null,"abstract":"ABSTRACT This study sought to appraise 7-year and 9-year-old Cedrela odorata for pulp and paper making. Sectioning and maceration processes were adopted. Data were subjected to statistical analysis using SPSS version 17.00. Cell characteristics for all ages and tree positions appeared similar but quantitatively, cells in 9-year-old generally exhibited some significant (p < .05) variations. Age and wood position generally had some significant influence on cell characteristics. Fibre lengths were generally short (<1.6 mm or 1600 μm) with variations in fibre morphology being significant axially than radially. In appraising the wood for paper production, derived fibre indices/values viz; Runkel ratio (ranging from 0.19 to 0.28), flexibility coefficient (ranging from 0.78 to 0.83), and slenderness ratio (ranging from 38.98 to 51.72) appeared to provide some positive indications. The species therefore, has potential for pulp and paper production, but further studies on its chemical consumption levels and other properties need to be ascertained towards a well-informed decision.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"172 - 185"},"PeriodicalIF":1.1,"publicationDate":"2022-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41484920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-destructive acoustic assessment of wood quality in trees and logs and the effects of silvicultural treatments: a review 树木和原木木材质量的无损声学评价和造林处理的影响:综述
IF 1.1
International Wood Products Journal Pub Date : 2022-04-08 DOI: 10.1080/20426445.2022.2061255
K. Olaoye, M. Ojo
{"title":"Non-destructive acoustic assessment of wood quality in trees and logs and the effects of silvicultural treatments: a review","authors":"K. Olaoye, M. Ojo","doi":"10.1080/20426445.2022.2061255","DOIUrl":"https://doi.org/10.1080/20426445.2022.2061255","url":null,"abstract":"ABSTRACT Assessing intrinsic wood qualities such as modulus of elasticity and internal decay in trees and logs can be challenging. However, acoustic technologies have been investigated for a possible solution. This paper reviews available literature on non-destructive acoustic methods for assessing wood quality, both in tree and log form. The paper further reviews the effects of silvicultural practices (such as thinning and pruning) on wood quality assessed by non-destructive acoustic methods. We documented some of the benefits of application of non-destructive acoustic methods on wood quality of trees and logs. The acoustic velocity of a tree (VT) or log (VL) of the propagated waves and wood density can be used to determine the Dynamic Modulus of Elasticity (MOEd). Thinning was reported to affect VT/VL and MOEd negatively. Acoustic tomography methods were equally found to have good accuracy in detecting the location and extent of wood decay in standing trees and logs.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"156 - 171"},"PeriodicalIF":1.1,"publicationDate":"2022-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44165936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Preparation of phenol-formaldehyde resin modified with phenol-rich pine needle pyrolysis oil and assessment of bonding strength 富酚松针热解油改性酚醛树脂的制备及粘结强度评价
IF 1.1
International Wood Products Journal Pub Date : 2022-04-07 DOI: 10.1080/20426445.2022.2061254
Tarannum Jahan, Brijesh Lekhak, A. K. Verma, A. Dubey, T. Bhattacharya
{"title":"Preparation of phenol-formaldehyde resin modified with phenol-rich pine needle pyrolysis oil and assessment of bonding strength","authors":"Tarannum Jahan, Brijesh Lekhak, A. K. Verma, A. Dubey, T. Bhattacharya","doi":"10.1080/20426445.2022.2061254","DOIUrl":"https://doi.org/10.1080/20426445.2022.2061254","url":null,"abstract":"ABSTRACT The pine needles bio-oil was partially replaced with phenol-formaldehyde (PF) resin at a rate of up to 40% by weight. The wood adhesive characteristics of a newly produced bio-oil phenol-formaldehyde (BOPF) resin with 10% bio-oil replacements was found to be comparable to those of pure PF resin with similar shear strength. DSC revealed that the curing temperature of 20 wt-% BOPF resin decreased from 95 to 60°C. Thermal degradation of BOPF resins was somewhat lower than that of pure PF resin, according to TGA and DTG data, and was similar in 10 and 20 wt-% BOPF resins. The presence of methylene bridges between phenols shown by FTIR analysis indicated that the wood adhesive had a good quality. According to SEM examination, the 10 and 20% BOPF resins showed a flat microstructure comparable to the pure PF resin.","PeriodicalId":14414,"journal":{"name":"International Wood Products Journal","volume":"13 1","pages":"148 - 155"},"PeriodicalIF":1.1,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48547618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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