摘要
对刨花饰面胶合板进行热处理,处理条件为温度45、55、65、75℃,时间30、60、90、120 min,旨在改善其物理力学性能。研究结果表明,温度75℃和时间120 min为最优热处理条件,静曲强度、弹性模量和胶合强度分别增加了13.6%,5.7%和9.4%,表面胶合强度上升了14.6%,24 h吸水厚度膨胀率下降11.7%,甲醛释放量降低了14.28%。
The heat treatment of particle-finished plywood was carried out at 45,55,65 and 75℃for 30,60,90 and 120 min to improve its physical and mechanical properties.The results showed that the temperature of 75℃and time of 120 min were the optimal treatment conditions,and the static flexural strength,modulus of elasticity and glue strength increased by 13.6%,5.7%and 9.4%,respectively,the surface glue strength increased by 14.6%,the 24 h water absorption thickness expansion decreased by 11.7%,and the formaldehyde emission decreased by 14.28%.
作者
袁朱润
詹嘉懿
魏任重
毕海明
采国帅
Yuan Zhurun;Zhan Jiayi;Wei Renzhong;Bi Haiming;Cai Guoshuai(Treezo NewMaterial Science and Technology Group Co.Ltd,Hangzhou 311112,China)
出处
《中国人造板》
2022年第9期10-13,共4页
China Wood-Based Panels
关键词
刨花饰面胶合板
热处理
力学强度
尺寸稳定性
particle-finished plywood
heat treatment
mechanical strength
dimensional stability
