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生物质化学工程 ›› 2010, Vol. 44 ›› Issue (2): 40-42.

• 论文 • 上一篇    下一篇

青稞秸秆化学成分及纤维形态研究

李海朝1,2, 徐贵钰1, 汪航2   

  1. 1. 青海民族大学, 化学与生命科学学院, 青海 西宁 810007;2. 东北林业大学, 材料科学与工程学院, 黑龙江 哈尔滨 150040
  • 收稿日期:2009-08-06 修回日期:1900-01-01 出版日期:2010-03-30 发布日期:2010-03-30

Study on Chemical Components and Fiber Morphology of Highland Barley Stalk

LI Hai-chao1,2, XU Gui-yu1, WANG Hang2   

  1. 1. Faculty of Chemistry and Life Science, Qinghai Nationalities University, Xining 810007, China;2. College of Material Science and Technology, Northeast Forestry University, Harbin 150040, China
  • Received:2009-08-06 Revised:1900-01-01 Online:2010-03-30 Published:2010-03-30

摘要: 对青稞秸秆的化学成分、纤维形态进行了实验分析。结果表明:青稞秸秆中含灰分较高,为10.34%,木质素、纤维素等含量均与一般麦草相仿。从纤维形态来看,较普通麦草更加细小。青稞秸秆纤维中长度0~0.5 mm的占42.24%,0.5~1.5 mm的占47.49%,1.5~7.6 mm的占10.26%;数均长度0.38 mm。纤维的长宽比为20.32,壁腔比为0.45。

关键词: 青稞秸秆, 化学成分, 纤维形态

Abstract: Chemical compositions and fiber morphology of the highland barley (Hordeum vulgare L.var.nudum hook.f.) stalks were analyzed. The results showed that: the mass fraction of ash is as high as 10.34%, lignin and cellulose contents of the highland barley stalks are similar to common straw stalks. Highland barley stalks contain smaller size fibers from fiber morphology. The mass fraction of different fibers length are as follows: 0-0.5 mm about 42.24%. 0.5-1.5 mm about 47.49%, 1.5-7.6 mm about 10.26%. Average fiber length is 0.38 mm. Fiber aspect ratio is 20.32 and fiber ratio of wall to cavity (CTW) is 0.45.

Key words: highland barley stalk, chemical composition, fiber morphology

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