最新刊期
      期 4 ， 2014

        Research & Development

      • FANG Lu,CHANG Liang,GUO Wen-jing,CHEN Yong-ping,WANG Zheng
        Vol. 28, Issue 4, Pages: 5-8(2014) DOI: 10.19455/j.mcgy.2014.04.001
        摘要：Poplar veneers were treated in the oven under different temperatures before high density polyethylene（HDPE）film was applied to them to manufacture plywood.The effects of treating temperatures on the physical-mechanical properties of wood-plastic plywood were investigated and the mechanism was studied by infrared spectroscopy and contact angle analysis.Results showed that the hydrophilicity decreased when poplar veneers were treated between 130and 200 ℃,which effectively improved interfacial compatibility with HDPE films and greatly improved the shear strength and water resistance of the plywood.However,because of the depolymerization of the veneers,both plywood MOR and MOE decreased after treatment.The optimum comprehensive properties of the plywood could be obtained when poplar veneers were treated at 160℃in the oven.  
        关键词：Poplar veneer;treating at high temperature;oven;high density polyethylene（HDPE）;interfacial compatibility;properties   
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        发布时间：2021-02-08
      • MO Xian-feng,FAN Dong-bin,QIN Te-fu,CHU Fu-xiang
        Vol. 28, Issue 4, Pages: 9-12(2014) DOI: 10.19455/j.mcgy.2014.04.002
        摘要：Three different additives（urea,sodium carbonate and triacetin）were selected to be added in phenol-formaldehyde（PF）resin for accelerating curing rate.Curing properties,pot life and shear strength of cure-accelerated PF resins were investigated.The results indicated that the shear strength of plywood made with the PF resin could meet the specifications for typeⅠ plywood according to Chinese National Standard GB/T 9846.3-2004.Sodium carbonate could be more effective considering curing properties,shear strength and pot life.  
        关键词：phenol-formaldehyde resin;additives;curing properties;shear strength   
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      • HAN Yu-tong,XU Jian-feng,ZHANG Zheng-jian,LONG Ling
        Vol. 28, Issue 4, Pages: 13-16(2014) DOI: 10.19455/j.mcgy.2014.04.003
        摘要：Experiments of decorative base paper treated by a mixture of starch and styrene acrylate on base paper surfaces were conducted in order to evaluate effects of the surface treatment conditions on tensile strength,surface properties and printability of the paper.The results showed that when the mass ratio of starch and styrene acrylate was mixed with 20∶1,the tensile strength,smoothness,color density and contrast of the paper were improved significantly without losing absorbability.The tensile strength increased by 40% and smoothness was doubled.Print performance showed melamine impregnated processing can make print pattern retention time longer.  
        关键词：surface treatment;decorative base paper;starch;styrene acrylate;printability;tensile strength;smoothness   
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        发布时间：2021-02-08
      • WANG Xiang-ge,JIN Ju-wan,DENG Yu-he,ZHUANG Shou-zeng,HAN Shu-guang
        Vol. 28, Issue 4, Pages: 17-20(2014) DOI: 10.19455/j.mcgy.2014.04.004
        摘要：Pinus massoniana lumber was impregnated with low molecular weight phenol formaldehyde resins,with different solids contents,to improve its physical and mechanical properties.A vacuum-pressure process was used to impregnate the lumber.The results showed that dimensional stability,modulus of rupture,modulus of elasticity and hardness of the test samples were all increased after impregnation with different concentrations of PF resin from 10%to 30%.However,toughness of the samples decreased as the resin weight gain increased.  
        关键词：Pinus massoniana;low molecular weight PF resin;solids content;dimensional stability;mechanical properties   
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        发布时间：2021-02-08

        Research Bulletin

      • LIU Yuan,LUO Jian-ju,XIANG Dong-yun,CHEN Jian-bo,FU Yun-lin
        Vol. 28, Issue 4, Pages: 21-23(2014) DOI: 10.19455/j.mcgy.2014.04.006
        摘要：为开发低毒、高效的马尾松木材防蓝变药剂,以18年生马尾松边材为试材,采用14种复合药剂对3种木材变色菌进行实验室防蓝变试验。结果表明:处理时间延长、药剂质量分数增加,处理材的防治效果增强;以甲基硫菌灵、多菌灵、双十烷基二甲基氯化铵混合配制的药剂,对3种变色菌的防治效果最佳。  
        关键词：马尾松;防蓝变;杀菌剂;复配   
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        发布时间：2021-02-08

        Discussion & Suggestion

      • XU Wei,WU Zhi-hui,ZHANG Ji-lei,LIU Xian-zhong,HUANG Qiong-tao
        Vol. 28, Issue 4, Pages: 24-27(2014) DOI: 10.19455/j.mcgy.2014.04.007
        摘要：To analyze the influence of corner strength of panel furniture,specimens were cut from fiber board and plywood and were used as backboards which were connected with panel and side plates by screws in rebated joint and flat joint.Corner strength was tested with panel and side plates in either tension or compression.The results showed that the corner strength was not closely related to backboard material.When the panel and side plates were in tension,the corner strength of the rebated joints was slightly lower than flat joints;while in compression,the corner strength of the rebated joints was obviously higher than the flat joints.Corner damage occurred more likely when the panel and side plates were compressed inward rather than tensioned outwards.  
        关键词：panel furniture;joint type;corner strength   
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        发布时间：2021-02-08
      • XIE Xue-xia,LIU Bo,SUN Hua-lin,JIANG Xiao-mei,YIN Ya-fang
        Vol. 28, Issue 4, Pages: 28-31(2014) DOI: 10.19455/j.mcgy.2014.04.008
        摘要：To determine wood machining properties of less-commercially used species for high value-added utilization,planning,sanding,shaping,boring,turning and mortising of Castanea mollissima,Robinia pseudoacacia and Cryptomeria fortunei from plantation resources were evaluated respectively,according to Chinese forestry industrial standard LY/T2054-2012.Moreover,the effect of cutting depth and feed rate on planning quality was investigated.The results showed that the comprehensive machining properties of Castanea mollissima and Robinia pseudoacacia were better than that of Cryptomeria fortunei.Furthermore,wood planning quality of the three species decreased as the increase of cutting depth and feed speed.Also,the effect of feed rate on planning quality was greater than that of cutting depth.  
        关键词：Castaneamo llissima;Robinia pseudoacacia;Cryptomeria fortune;machining properties;less-commercially used species   
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        发布时间：2021-02-08
      • QUE Ze-li,YANG Ling,WANG Fei-bin,WANG Yong-bing,WU Yong
        Vol. 28, Issue 4, Pages: 32-35(2014) DOI: 10.19455/j.mcgy.2014.04.010
        摘要：Three kinds of structural materials,larch lumber,poplar laminated veneer lumbers（LVL）and poplar plywood were selected to evaluate the effects of screw extracting delay time on withdrawal strength of the materials.The results found that the vertical screw withdrawal strength for larch lumber was higher than the face withdrawal strength of poplar LVL and poplar plywood.With the extension of screw extracting delay time,larch vertical withdrawal strength kept almost the same,while the face withdrawal strength of poplar LVL and plywood increased at the beginning and then decreased until stabilized.The change in the face withdrawal strength of the poplar plywood was smaller than poplar LVL.  
        关键词：larch;dimension lumber;Poplar;laminated veneer lumbers（LVL）;plywood;withdrawal strength of screw;extracting delay time   
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        发布时间：2021-02-08
      • CHU Jie,DUAN Xin-fang,LV Bin
        Vol. 28, Issue 4, Pages: 36-39(2014) DOI: 10.19455/j.mcgy.2014.04.012
        摘要：This paper reviewed the progress of carbon footprint evaluation and carbon label systems for wood products throughout the world.Suggestions were also presented in order to carry out carbon footprint evaluation and to establish a carbon labeling system for wood products in China.  
        关键词：wood products;carbon footprint;carbon label;low carbon certification   
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        发布时间：2021-02-08

        Piactical Techniques

      • WANG Fei,GAO Zhen-zhong,ZHENG Min,WANG Xiao-jing,SUN Jin
        Vol. 28, Issue 4, Pages: 40-43(2014) DOI: 10.19455/j.mcgy.2014.04.013
        摘要：In order to improve flame retardant performance of plywood,plywood samples were manufactured with urea formaldehyde adhesive mixed with expanded vermiculite（EVMT）powder.The results showed that flame retardant performance of the plywood samples was improved but the formaldehyde emissions and bonding strength decreased and smoke density increased as the EVMT content increased.  
        关键词：expanded vermiculite powder;plywood;UF resin;flame retardant;bonding strength;formaldehyde emissions   
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        发布时间：2021-02-08
      • SUN Wei-sheng,WANG Yan-wei,XU li,YANG Zhi-hui,ZHANG Qiu-juan,CHAO Jiu,WU Zhong-qi
        Vol. 28, Issue 4, Pages: 44-46(2014) DOI: 10.19455/j.mcgy.2014.04.015
        摘要：研究木材干缩湿胀对实木地板不同油漆漆膜性能的影响。结果表明:经普通紫外光固化漆（UV）涂饰的地板,表面漆膜因基材过度干缩产生皱缩,导致光泽度降低,过度湿胀导致漆膜开裂;采用柔韧性较好的弹性漆涂饰地板,基材干缩后漆膜表面光泽度仅小幅度降低,湿胀后漆膜不开裂。说明实木地板应选择具有一定柔韧性,可适应基材一定范围内尺寸变化的弹性油漆。  
        关键词：实木地板;干缩湿胀;漆膜;柔韧性;光泽度;开裂   
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      • ZOU Guo-zheng,CAI Jia-bin,FENG Zhi-bo,ZHOU Hong-jie,LIU Ying-qing
        Vol. 28, Issue 4, Pages: 47-50(2014) DOI: 10.19455/j.mcgy.2014.04.016
        摘要：Modified low molecular urea-formaldehyde（UF）resin was impregnated into poplar samples by a vacuum-pressure impregnation process.The impregnation process parameters and mechanical properties of the samples,as well as impregnated resin amountretained by the samples after processing,were evaluated.The experiments were conducted with impregnation temperatures of 2225℃and a vacuum of 0.07MPa for 1hfollowed by apressure of 0.6MPa for 2h.  
        关键词：poplar wood;impregnation technology;weight gain;mechanical properties   
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      • YANG Wei-wei
        Vol. 28, Issue 4, Pages: 51-52(2014) DOI: 10.19455/j.mcgy.2014.04.018
        摘要：家具产业是江西赣南支柱产业之一,在家具产业转型升级的过程中,知识产权体制不健全所带来的影响日趋严重。通过对赣南地区家具企业知识产权现状进行调查分析,针对问题提出改进措施。  
        关键词：赣南地区;家具;知识产权;调查   
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      • Vol. 28, Issue 4, Pages: 53-54(2014) DOI: 10.19455/j.mcgy.2014.04.020
        摘要：<正>2014年5月,国家林业公益性行业科研专项重大项目"实木家具用低质材提质加工技术研究与示范"项目在京启动。我国珍贵木材资源有限,随着消费者对家具材质和性能要求的日益增高,目前对进口木材依存度已达50%。我国人工林面积近6 933万hm2,其中杨木约占人工林总面积的13%。人工林杨木存在密度低、材质软、握钉力小、尺寸稳定性差等问题,但通过技术改性处理,可以用来代替优质珍贵木材资源,是扩大家具用材树种、缓解家具用材资源严重短缺的重要途径。  
          
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      • Vol. 28, Issue 4, Pages: 54-55(2014) DOI: 10.19455/j.mcgy.2014.04.022
        摘要：<正>国家木材储备加工交易示范基地——中林集团国林木业城项目,于2014年4月在绥芬河市边境经济合作区正式开工。中林集团、黑龙江省林业厅、绥芬河市市委领导以及工程规划、建设、监理方负责人出席了开工仪式。该项目由中国林业集团公司承建运营,是国家进口木材储备加工交易基地建设的试点与示范项目。项目占地33.5万m2,规划建筑面积29万m2;投资总额20亿元,设有库房、厂房、展示、交易中心,是目前国内容量最大、处理设施最先进、集储备、加工、展  
          
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      • Vol. 28, Issue 4, Pages: 55-56(2014) DOI: 10.19455/j.mcgy.2014.04.024
        摘要：<正>2014年5月13—17日,两年一度的意大利米兰国际木工机械展（XYLEXPO）在米兰展览中心举办。本届展会展示面积为2.7万m2,参展商440家企业,分别来自27个国家,其中德国展团庞大,有51家企业参展,其余分别为中国、西班牙、奥地利、英国、捷克等国家的企业。据统计,展前注册的专业观众为1.525万人,较2012年上届展会增加了7.1%。观众总数为4.4万人,其中42%为外国观众,增加了8.5%;意大利本国观众数量增加了4.6%。参观者中,来自欧洲的增加了  
          
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      • Vol. 28, Issue 4, Pages: 56-57(2014) DOI: 10.19455/j.mcgy.2014.04.026
        摘要：<正>国家林业局发布《2013年全国林业统计年报分析报告》,公布了我国森林资源及木材、人造板产量数据。1)森林资源据第8次全国森林资源清查结果:全国森林面积2.08亿hm2,森林覆盖率21.63%,人工林面积0.69亿hm2,蓄积24.83亿m3。2)木材产量2013年原木产量为8 438.5万m3,锯材产量6 297.60万m3;3)人造板产量2013年各类人造板总产量为25 559.91万m3,同比增长14.43%。2013年人造板产量排名前6位的省（区）是:山东、江苏、广西、安徽、河南和河北,6省区人造板产量总计18 773.87万m3,占全国人造板总产量的73.45%。4)地板产量2013年各类木竹地板的总产量  
          
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