基于改性工业木质素的环保型纤维板研制工艺  

Technology Optimization on Eco-Friendly Fiberboard Processing Based on Modified Industrial Lignin/Wood Fiber Material

作　　者：郭文君[1] 孙晓婷[1] 彭子东[1] 詹金龙[1] 郭明辉[1] 

机构地区：[1]东北林业大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《西南林业大学学报（自然科学）》2012年第3期84-87,共4页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家"十二五"科技支撑计划项目(2011BAD08B03)资助;黑龙江省重点科技攻关项目(GA09B201-07)资助;东北林业大学国家级大学生创新训练项目专项(111022524)资助

摘　　要：以改性工业木质素和木纤维为原料,采用高速混合-平板热压的技术路线,制备环保型纤维板。单因素正交试验分析发现:木铵填料量、板坯含水率、热压时间、热压温度对材料各项物理力学性能均有不同程度的影响,优化确定的工艺参数为:氧化改性木质素磺酸铵填料量25%、板坯含水率20%、热压时间7 min、热压温度170℃;在此工艺条件下制备的材料物理力学性能达到GB/T11718—2009《中密度纤维板》的要求。Eco-friendly fiberboard was made by high-speed mixing and hot pressing technical route with wood fibers and modified industrial lignin as basic raw material. The results of orthogonal tests and single factor tests showed that the physical and mechanical properties of the products were influenced to a certain degree by the filler amount, and the moisture content of slab, hot pressing time duration, and the hot pressing temperature. The optimal parameters obtained were 25% of oxidation modified ammonium lignosulfonate as the filling dosage, with 20% of mat moisture content, the raw materials were hot pressed for 7 min at 170℃, respectively. The mechanical properties of the material made under these processing parameters met the requirements of national standardG B/T 11718 - 2009 for medium-density fiberboard.

关 键 词：改性工业木质素 环保型材料 物理力学性能 

分 类 号：S784[农业科学—林学]