WOOD RESEARCH 67(4) 2022最新文献_第2页

COMPARISON OF MECHANICAL PROPERTIES OF THE ELDEST LARCH WOOD CONSTRUCTION WITH OAK WOOD AND SPRUCE WOOD 最老落叶松木材结构与橡木和云杉木材力学性能的比较

WOOD RESEARCH 67(4) 2022 Pub Date : 2022-08-11 DOI: 10.37763/wr.1336-4561/67.4.612624

Eliška Hřebenářová, F. Wald

引用次数: 0

PREPARATION AND PROPERTIES OF AGGLOMERATED CORK PANELS BOUND WITH CHITOSAN BINDER 壳聚糖粘结剂粘结软木板的制备及性能研究

WOOD RESEARCH 67(4) 2022 Pub Date : 2022-08-11 DOI: 10.37763/wr.1336-4561/67.4.648660

Song Xiaozhou, Liu Guorui, Feng Xuechun, Zhangyi Li

{"title":"PREPARATION AND PROPERTIES OF AGGLOMERATED CORK PANELS BOUND WITH CHITOSAN BINDER","authors":"Song Xiaozhou, Liu Guorui, Feng Xuechun, Zhangyi Li","doi":"10.37763/wr.1336-4561/67.4.648660","DOIUrl":"https://doi.org/10.37763/wr.1336-4561/67.4.648660","url":null,"abstract":"In this paper, acidified chitosan was used as an adhesive to prepare aldehyde-free, environmentally-friendly agglomerated cork panels by hot-pressing. After preparation, thephysical, mechanical, and the finishing properties of the chitosan-glued agglomerated cork panels were investigated. The optimal mass ratio of acetic acid solution (1wt.%) to chitosan was determined to be 30:1. The resulting hot-pressed agglomerated cork panels, which featured adensity of 0.55 g.cm-3and a thickness of 4 mm, exhibited a tensile strength of 1.70 MPa and athermal conductivity of 0.11W.m-1·K-1. The agglomerated cork panels coated with theoil-based polyurethane and water-based, acrylic-modified polyurethane paints exhibited significantly lower lightness and higher glossiness. The total color differences (ΔE*) ofboth agglomerated cork panels increased before and after finishing. The oil-based polyurethane paint coating exhibited high adhesion of paint film, reaching a level-0 adhesion, while thewater-based, acrylic-modified polyurethane paint coating achieved a level-1 adhesion. Theabrasion resistance results showed that the substrates of cork agglomerates coated two types of paint did not expose after undergoing abrasion for 100 revolutions atthe turntable speed of 60 rpm.","PeriodicalId":329192,"journal":{"name":"WOOD RESEARCH 67(4) 2022","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134466825","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: 2

THE STUDY ON GLUE-APPLYING METHODS AND HOT-PRESSING TECHNOLOGY OF PARALLEL STRAND LUMBER 平行线材的涂胶方法及热压工艺研究

WOOD RESEARCH 67(4) 2022 Pub Date : 2022-08-11 DOI: 10.37763/wr.1336-4561/67.4.661670

KANG ZHOU, Zirui Ren, Chen Shuosun, B. Na

{"title":"THE STUDY ON GLUE-APPLYING METHODS AND HOT-PRESSING TECHNOLOGY OF PARALLEL STRAND LUMBER","authors":"KANG ZHOU, Zirui Ren, Chen Shuosun, B. Na","doi":"10.37763/wr.1336-4561/67.4.661670","DOIUrl":"https://doi.org/10.37763/wr.1336-4561/67.4.661670","url":null,"abstract":"Parallel strand lumber (PSL) was manufactured from the veneer strand cut from the poplar broken veneers of the plywood enterprises, by analyzing the influence of the size of veneer strands, the glue concentration and glue-applying time on the glue-absorbing amount of veneer strands, the influence of three different glue-applying was, hot-pressing time and temperature on the physical and mechanical properties of PSL was reviewed and the hot-pressing technology was optimized. The experiment results showed that the size of the veneer strands have not notableinfluence on the gluing-absorbing amount, and mainly affect the homogeneity and appearance quality of the product. The glue concentration is one main factor to affect theglue-absorbing amount of veneer strands and PF resin of 30% concentration was chosen. The glue-applying way is the main factor to affect the mechanical property of PSL. Thehot-pressing time and temperature have significant influence on physical and mechanical properties of PSL. Comprehensively considering, the physical and mechanical properties and homogeneity of products are better using the veneer strands with 100 mm length, theglue-spraying way and hot-pressing technology with the time 35 min and thetemperature of 150°C.","PeriodicalId":329192,"journal":{"name":"WOOD RESEARCH 67(4) 2022","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131274247","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

INVESTIGATION ON THE MALYSIAN DUABANGA MOLUCCANA CROSS SECTIONS AS SOUND ABSORBING FUNCTIONAL MATERIALS 马来西亚摩鹿卡纳鱼横截面作为吸声功能材料的研究

WOOD RESEARCH 67(4) 2022 Pub Date : 2022-08-11 DOI: 10.37763/wr.1336-4561/67.4.558567

E. Jang, C. Kang

引用次数: 2