工艺参数对大豆基胶黏剂刨花板密度梯度的影响  

Effect of the Process Parameters on Density Gradient of Soybean-base Adhesives Particleboard

作　　者：乐磊[1] 谷秀亮 时君友[1] 王磊 栾鑫 秦韶山[3] 唐朝发[1] Le Lei;Gu Xiuliang;Shi Junyou;Wang Lei;Luan Xin;Qin Shaoshan;Tang Chaofa(Wood Material Science and Engineering Key Laboratory of Jilin Province,Beihua University,Jilin 132013,China;Jinqiao Floor Group of Jilin Forest Industry Group,Changchun 130114,China;Rubber Research Institute,CATAS,Danzhou 571737,China)

机构地区：[1]吉林省木质材料科学与工程重点实验室(北华大学),吉林吉林132013 [2]吉林森工金桥地板集团有限公司,吉林长春130114 [3]中国热带农业科学院橡胶研究所,海南儋州571737

出　　处：《北华大学学报（自然科学版）》2017年第6期826-830,共5页Journal of Beihua University（Natural Science）

基　　金：吉林省科技发展计划项目(20140309020NY);国家林业公益性行业科研重大专项资助项目(201504502);吉林省木质材料科学与工程重点实验室开放基金资助

摘　　要：按不同密度及热压工艺参数制备大豆基胶黏剂刨花板,在静曲强度、内结合强度、2 h吸水厚度膨胀率等主要技术指标满足刨花板国家标准的前提下,检测断面密度梯度,研究影响大豆基胶黏剂刨花板密度梯度的主要因素.试验结果表明:刨花板密度梯度呈U型变化,表层密度大于芯层密度,表、芯层密度差较大;采用厚度规控制厚度的生产方式,在生产相同密度大豆基木质刨花板时,热压压力对刨花板密度梯度的影响最大.随着热压压力的增加,密度梯度呈增大趋势;其次是刨花密度;热压温度和热压时间对刨花板密度梯度的影响较小.To prepare soybean-base adhesive particleboard according to different densities and hot pressing process parameters,then in the premise of the national standard for particleboard,such as the static bending strength,the internal bond strength,2hours thickness expansion rate of water absorption,the density gradient of section was tested,and then we got the main factors affecting the density gradient of soybean-base adhesive particleboard.Experimental results show that particleboard density gradient was U-shaped changes,the surface density is greater than the core density,the difference of surface layer between core layer density is larger.When we produce soybean-base particleboard with the same density,we use the production method with thickness gauge to control thickness,the hot pressing pressure has the most influence on the density gradient of particleboard.With the increase of hot pressing pressure,the density gradient is increasing.On the particle density,hot pressing temperature and hot pressing time have little effect on the density gradient of particleboard.

关 键 词：刨花板 工艺参数 密度梯度 大豆基胶黏剂 

分 类 号：TQ432[化学工程] TS653.5[轻工技术与工程]