森林与环境学报2017，Vol.37Issue(2)：246-250,5.DOI:10.13324/j.cnki.jfcf.2017.02.020
热固型苯酚-间苯二酚-甲醛树脂对竹篾层积材性能的影响
Effect of thermosetting PRF resin on physical and mechanical properties of LBSL
摘要
Abstract
To increase the bonding strength of structural laminated bamboo strips lambers (LBSL),resorcinol was used to modify phenol formaldehyde resin into thermosetting phenol resorcinol formaldehyde (PRF) resin to make moso LBSL.The resorcinol content,the molar ratio of formaldehyde to phenol of resin,and solid content of resin impregnated bamboo curtain were taken as variables factors,the orthogonal experiment with 3 factors and 3 levels was conducted.And the effect of factors on physical and mechanical properties of LBSL was investigated with variance analysis and significance test.The results indicated that the resorcinol content of resin had significant effects on the modulus of elasticity (MOE) and 24 h thickness of swell after absorption of water (24 h TS) of LBSL;the molar ratio of formaldehyde to phenol of resin significantly impacted DR,24 h TS and the Free formaldehyde (FF) of LBSL;when doing impregnation,resin solid content obviously impact the 24 h TS and modulus of rapture (MOR) of LBSL.Optimal factor levels to prepare moso LBSL with thermosetting PRF resin were as follow:resoreinol content is 1.5％,the molar ratio of formaldehyde to phenol is 2.0∶1 and resin solid content of impregnation is 25.0％.关键词
间苯二酚/热固型/苯酚-间苯二酚-甲醛树脂/竹篾层积材/物理力学性能Key words
resorcinol/thermosetting/phenol resorcinol formaldehyde (PRF) resin/laminated bamboo strips lambers (LBSL)/physical and mechanical properties分类
农业科技引用本文复制引用
任一萍,郭文静,常亮,高黎..热固型苯酚-间苯二酚-甲醛树脂对竹篾层积材性能的影响[J].森林与环境学报,2017,37(2):246-250,5.基金项目
“十二五”农村领域国家科技计划专题项目(2012BAD23B0105). （2012BAD23B0105）
