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0～0.5mm的占42.24%,0.5～1.5mm的占47.49%,1.5～7.6mm的占10.26%;数均长度0.38mm。纤维的长宽比为20.32,壁腔比为0.45。
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 high- land 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 （crw） is 0. 45.
出处
《生物质化学工程》
CAS
2010年第2期40-42,共3页
Biomass Chemical Engineering
基金
国家自然科学基金资助项目(30760195)
青海省攻关项目(2007-G-122)
关键词
青稞秸秆
化学成分
纤维形态
highland barley stalk
chemical composition
fiber morphology
