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	麦秆皮层硅化物的XPS研究(Ⅱ); Study on the Silicides in Cuticle of Wheat Straw Stem by Means of XPS(Ⅱ)
	邱玉桂 ; 欧海龙 ; 陈春霞 ; 云娜 ; 岑丹霞
	2009
关键词	麦秆节间皮层 XPS 有机硅化物 无机硅化物微块 碱稳定性 cuticle of wheat straw stem silicides XPS inorganic microblock of silicides alkali-stability
英文摘要	用X射线光电子能谱法(XPS)研究了麦秆节间不同部位皮层的硅化物组成及含量,探索皮层硅化物的碱稳定性。结果表明,在实验条件下,节间所有部位皮层中的硅化物均是由有机硅化物和无机硅化物组成;无机硅化物的含量约为有机硅化物的3倍,且种类更复杂;节间上部皮层的硅化物含量最高,下部皮层的硅化物含量最低;自外至里,上部皮层中硅化物的含量、分布具有与其他禾本科原料皮层相似的规律性,下部皮层的规律性较差。不同硅化物的碱稳定性有差别;部分无机硅化物微块由于其连接机构的碱溶解而脱落,完好地存在于黑液之中。在皮层生物结构中,硅化物的堆砌、连接方式及其碱溶机理有待进一步研究。; The content and components of silicides in the cuticle of the up-part,the mid-part and the low-part on the internode of wheat straw stem were studied by means of XPS,and the alkali-stability of the silicides in the foresaid cuticle was also investigated.The results showed that,the silicides in above cuticles are all composed of organic and inorganic silicides.The content of inorganic silicides is about three times as high as organic silicides.And the sorts of inorganic silicides are more complex.Among the above three parts,the up-part has highest silicide content,and the low-part the lowest.From the outside to the inner of the cuticle,the profile of silicide content is in analogy to that of other gramieal cuticle,and the profile of silicides in the low-part cuticle has poor order.Under the experimental conditions,the alkali-stability of a sort of silicides is different from the other.A part of inorganic micro blocks of silicides with higher alkali-stability wholly remains in the black liquor after falling off from the cuticle.The mode of building and connecting as well as the alkali-degrading of the silici micro blocks will be further researched.; 国家自然科学基金(20277012)资助项目
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/106215]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	邱玉桂,欧海龙,陈春霞,等. 麦秆皮层硅化物的XPS研究(Ⅱ), Study on the Silicides in Cuticle of Wheat Straw Stem by Means of XPS(Ⅱ)[J],2009.
APA	邱玉桂,欧海龙,陈春霞,云娜,&岑丹霞.(2009).麦秆皮层硅化物的XPS研究(Ⅱ)..
MLA	邱玉桂,et al."麦秆皮层硅化物的XPS研究(Ⅱ)".(2009).

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