摘要
以木质纤维为原料,木质素磺酸铵/尿素为填料制备无醛纤维板,并分析试板的结合性能。通过差示扫描量热法(DSC),测定填料木质素磺酸铵/尿素的热反应特性,在确定热压温度参数的基础上,利用正交试验法对其热压工艺参数进行优化。结果表明:在填料量20%,板坯含水率13%,热压温度190℃,热压时间7min的条件下,试板性能可达到欧盟标准EN622-2—2004《硬质纤维板技术要求》的要求。
The binding properties of binderless fiberboard made of wood fiber using ammonium lignosulphonate/urea as filling material was analysed. The thermo-reaction properties of lignosulphonate/urea were measured by differential scanning calorimetry （ DSC） ,and the hot-pressing parameters of fiberboard were optimized based on the confirmation of hot-pressing temperature by orthogonal experimental method. The optimal process parameters were obtained as filler content 20% ,mat moisture 13% ,hot-pressing temperature 190 degrees C,and hot-pressing time 7 minutes. The mechanical properties of the test panels could meet the requirements of European standard EN 622-2-2004 for hardboard.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2010年第6期81-83,共3页
Journal of Northeast Forestry University
基金
中央高校基本科研业务费专项资金项目(DL09EB01-1)
黑龙江省重点科技攻关项目(GA09B201-07)
哈尔滨市重点科技攻关项目(GJ2007GG002235)
东北林业大学大学生创新性实验项目(091022541)
关键词
木质素磺酸铵/尿素
无醛纤维板
结合性能
Ammonium lignosulphonate/urea
Binderless fiberboard
Binding properties
