期刊论文

Development of pennisetum-powder/nano-CuO composite and its electromagnetic shielding application

中文

中南林业科技大学学报

1673-923X

2020

40

6

132-139

10.14067/j.cnki.1673-923x.2020.06.016

湖南省重点领域研发计划项目(2019GK2244) 湖南省自然科学基金/常德市联合基金项目(2020JJ6065) 湖南省交通运输厅科技进步与创新项目(201731)。

本校为第一机构

【目的】为高值清洁利用狼尾草资源。【方法】以狼尾草粉末为基材、纳米氧化铜为增强因子,通过高纯酒精分散与三维高效无偏析混合方法获得狼尾草粉末与纳米氧化铜的均匀混合物,采用温压成形工艺对均匀混合物实施双向成形制备狼尾草粉末/纳米CuO复合材料。以单因素试验结果为基础,采用BBD响应面法进行多元回归分析,建立CuO含量、成形温度、成形压力与复合材料静曲强度、吸水率的数学模型,研究不同工艺参数对静曲强度和吸水率的影响及变化规律,得到了最优制备工艺参数,评估其电磁屏蔽效能。【结果】狼尾草/纳米CuO复合材料的最优温压成形工艺参数与最佳成分配比为:成形温度185 ℃,成形压力70 MPa,...

【Objective】To use the pennisetum resourcefor high value cleaning.【Method】Using pennisetum powder as the substrate and nano-CuO as the enhancement factor, the homogeneous mixture was obtained by high purity alcohol dispersion and 3D efficient non-segregation mixing method. Pennisetum powder/nano CuO composite was prepared by biaxially forming homogeneous mixture with warm compaction process. Based on the single factor test results, BBD response surface method was used for multiple regression analysis to establish the mathematical model of Cu...