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响应面法在桉木LVL生产中的应用
引用本文:蒋汇川,李宁,唐贤明,罗建举.响应面法在桉木LVL生产中的应用[J].桉树科技,2011(1):1-8.
作者姓名:蒋汇川  李宁  唐贤明  罗建举
作者单位:中国林业科学研究院木材工业研究所;广西大学林学院;
基金项目:广西重大林业科技招标项目(桂林科字[2009]第7号)
摘    要:采用响应面法(RSM),研究了单板厚度和涂胶量对桉木单板层积材(L、几)力学性能的影响。结果表明:单板厚度和涂胶量对桉木LVL的垂直加载和平行加载条件下的静曲强度(MOR┷、MOR//)和弹性模量(MOE┷、/dOE//)有显著影响。实验值与预测值的决定系数为0.72,0.79,0.59,0.69。本研究所获最佳工艺条件为:单板厚度2.0啪,涂胶量233g·m^-2在此工艺条件下压制的桉木单板层积材垂直加载条件下的静曲强度(MORJ和弹性模量(MOE上)分别为85MPa与15118MPa,平行加载条件下的静曲强度(MOR//)和弹性模量(MOE//)分别为87MPa与15288MPa,回归模型的预测值与实验值的相对误差最大为9%,最小为3%。实验产品的MOR和MOE分别达到结构用单板层积材国家标准的优等品和140E级别。

关 键 词:桉木  单板层积材  单板厚度  力学性能  响应面法

The Application of Response Surface Methodology in Process of Eucalyptus LVL
JIANG Hui-chuan,LI Ning,TANG Xian-ming,LUO Jian-ju.The Application of Response Surface Methodology in Process of Eucalyptus LVL[J].Eucalypt Science & Technology,2011(1):1-8.
Authors:JIANG Hui-chuan  LI Ning  TANG Xian-ming  LUO Jian-ju
Institution:JIANG Hui-chuan1,LI Ning2,TANG Xian-ming2,LUO Jian-ju2(1.Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China,2.Forestry College of Guangxi University,Nanning 530005,Guangxi,China)
Abstract:The influence of vdneer thickness and glue spread on mechanical property of laminated veneer lum- ber(LVL)of eucalyptus wood was investigated by response surface methodology (RSM). The results showed that veneer thickness and glue spread had significant effects on modulus of rupture (MOR) and modulus of elasticity (MOE). The determination coefficient (R 2) of predicted values and experiment values were 0.72, 0.79, 0.59, 0.69 respectively. The optimum parameters in experiment: veneer thickness 2.0 man, glue spread 233 g · m^-2. The MOR and blOE of laboratory products reached the level of 1^st- class product and140 E indicated in national standard (GB/T 20241-2006).
Keywords:eucalyptus wood  LVL  veneer thickness  mechanical property  RSM  
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