不同纤维制备中密度纤维板及其力学性能研究  

MDF Made from Different Fibers and Its Mechanical Properties

作　　者：李来丙[1] 

机构地区：[1]湖南工学院

出　　处：《林产工业》2015年第1期20-23,共4页China Forest Products Industry

基　　金：国家自然科学基金项目(21176061);湖南省重点建设学科资助

摘　　要：研究了由橡木纤维和回收的废旧瓦楞纸纤维混合制备的中密度纤维板(MDF)的阻燃性能,讨论了阻燃剂氢氧化铝(ATH)对MDF的内结合强度(IB)、膨胀率和吸水性等力学性能的影响。试验结果表明:随着ATH用量的增加,MDF的极限氧指数(LOI)增大,表明加入适量的ATH能提高MDF的阻燃性能。当MDF中不含树脂时,其IB值会随ATH用量增加而增大,并随回收的废旧瓦楞纸纤维用量的增加呈递增趋势;树脂的加入,提高了MDF的粘接强度,降低了MDF的膨胀率和吸水率;但当回收的废旧瓦楞纸纤维用量增大时,MDF面板的膨胀率也增大。The flame retardant property of medium density fiberboard （MDF） made from mixture of rubber wood fibers and recycled old corrugated containers fibers were studied.The influences of ATH on IB,thickness swelling and water absorption of MDF were discussed.The results showed that ATH loading increased as the LOI of MDF increased.This demonstrated that：ATH could improve the flame retardant property of MDF at sufficient loading.An increase in concentration of ATH showed an increase in the IB values of MDF made without resin.MDF panels made without resin showed a progressive increase in internal bond strength as the composition of recycled old corrugated containers fiber increased.Addition of resin improved internal bond strength,and reduced thickness swelling and water absorption.Thickness swelling of panel increased as the composition of recycled old corrugated containers fibers increased.

关 键 词：MDF 阻燃 氢氧化铝 极限氧指数 内结合强度 

分 类 号：TS653.6[轻工技术与工程]