烟草科技Issue(3)：84-88,5.DOI:10.16135/j.issn1002-0861.20150315
不同类型烟叶的孔结构表征
Characterization of Pore Structure of Different Kind Tobacco Leaves
摘要
Abstract
In order to quantitatively characterize the micro-porous structure of different kind tobacco leaves, the specific surface area and porosity of flue-cured, burley and oriental tobacco leaves were measured by N2-adsorption-desorption-method followed the pretreatment of immersing in ethanol. Meantime, the surface morphology of tobacco samples was observed by a scanning electron microscope (SEM). The results showed that: all the samples possessed obvious characters of porous medium, i.e. larger specific surface area and smaller pore volume; the porosity of oriental tobacco sample was 2.60%, that of flue-cured and burley tobacco samples was 4.78% and 10.73%, respectively; with a higher proportion of pore in leaf, burley tobacco leaf was open in structure; while oriental leaf was relatively close, and flue-cured tobacco leaf was in-between. The pore distribution characters and pore volume of samples agreed with the observation by scanning electron microscope.关键词
烟叶/比表面积/孔体积/孔隙率Key words
Tobacco leaf/Specific surface area/Pore volume/Porosity分类
轻工纺织引用本文复制引用
刘洋,胡军,刘菲,赵明月,曾世通,张亚涛..不同类型烟叶的孔结构表征[J].烟草科技,2015,(3):84-88,5.基金项目
中国烟草总公司郑州烟草研究院院长基金项目“烟叶表面润湿性及其影响因素的研究”（422010CA0260）。 （）
