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CELLULOSE CRYSTALLINITY AS AFFECTED BY VARIOUS TECHNICAL PROCESSES

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dc.contributor.author SIDIRAS, DK en
dc.contributor.author KOULLAS, DP en
dc.contributor.author VGENOPOULOS, AG en
dc.contributor.author KOUKIOS, EG en
dc.date.accessioned 2014-03-01T01:40:09Z
dc.date.available 2014-03-01T01:40:09Z
dc.date.issued 1990 en
dc.identifier.issn 0576-9787 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/23081
dc.subject.classification Materials Science, Paper & Wood en
dc.title CELLULOSE CRYSTALLINITY AS AFFECTED BY VARIOUS TECHNICAL PROCESSES en
heal.type journalArticle en
heal.language English en
heal.publicationDate 1990 en
heal.abstract The effects of various treatments on the crystallinity of purified, commercial cellulose and wheat straw cellulose were investigated. The value of the degree of crystallinity (DC), and the crystallite size (Do) of cellulose were measured by X-ray diffraction. Both physical and chemical processes were examined. Of those, drying, ball milling and solubilization in 72% H2SO4 decreased the DC of commercial and wheat straw cellulose: prehydrolysis, dilute acid hydrolysis, delignification with alkali aqueous solution, and acid- or alkali-catalyzed organosolv delignification increased the DC of lignocellulosics: on the other hand, the DC of wheat straw cellulose was not affected by hammer milling. The change of D0 generally agrees with that of DC. en
heal.publisher EDITURA ACADEMIEI ROMANE en
heal.journalName CELLULOSE CHEMISTRY AND TECHNOLOGY en
dc.identifier.isi ISI:A1990FH44800003 en
dc.identifier.volume 24 en
dc.identifier.issue 3 en
dc.identifier.spage 309 en
dc.identifier.epage 317 en


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