摘要
为研究脱胶对大麻纤维吸声性能的影响,选用正交设计法对大麻打成麻进行碱煮脱胶工艺优化,分析了脱胶时间、浴比、NaOH用量、Na2SO3浓度和Na2SiO3浓度对大麻纤维降噪系数的影响.结果表明,NaOH10g/L,Na2SO3质量分数50%,Na2SiO3质量分数40%,浴比1∶60,在100℃条件下处理5h,大麻纤维的吸声性能最好.
In order to study the sound absorption properties of hemp fiber, scutched hemps were degummed using the chemical reagents. The effects of degumming time, bath ration, the concentrations of NaOH, Na2SO3 and Na2SiO3 on the noise reduction coefficient were aslo analyzed by empolying orthogonal experimental design, respectively. The maximum noise reduction coefficient of hemp fibers was obtained when it was treated under the condition of NaOH 10g/L, Na2SO3 50%, Na2SiO3 40% and bath ration 1： 60, at the temperature of 100℃ for 5 hours.
出处
《西安工程大学学报》
CAS
2009年第1期5-9,共5页
Journal of Xi’an Polytechnic University
关键词
大麻纤维
脱胶
吸声
降噪系数
hemp fiber
degumming
sound absorption
noise reduction coefficient
