Flocculation of microfibrillated cellulose in shear flow
In this work, the rheological properties of microfibrillated cellulose suspensions under stepped flow and constant shear were studied using a combination of rotational dynamic rheometer and digital imaging. During each rheological measurement, the structure of the suspension was monitored through a...
Gespeichert in:
| Veröffentlicht in: | Cellulose (London) 2012-12, Vol.19 (6), p.1807-1819 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1819 |
|---|---|
| container_issue | 6 |
| container_start_page | 1807 |
| container_title | Cellulose (London) |
| container_volume | 19 |
| creator | Karppinen, Anni Saarinen, Tapio Salmela, Juha Laukkanen, Antti Nuopponen, Markus Seppälä, Jukka |
| description | In this work, the rheological properties of microfibrillated cellulose suspensions under stepped flow and constant shear were studied using a combination of rotational dynamic rheometer and digital imaging. During each rheological measurement, the structure of the suspension was monitored through a transparent outer cylinder with a digital camera. This enabled simultaneous analysis of the suspension floc size distribution and traditional rheological characterization. In stepped flow conditions, a good correlation between suspension floc structure and flow curve measurement was found. At constant shear, the suspension structure was dependent on the shear rate and concentration of the suspension. A low shear rate resulted in heterogeneous floc structure, which was also detected by an increase in the ratio of the viscous component to elastic component in the rheological measurement. At low concentrations and 0.5 s
−1
shear rate, flow induced a formation of floc cylinders between the rotating cylinder and stationary cup surface. |
| doi_str_mv | 10.1007/s10570-012-9766-5 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2259917018</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2259917018</sourcerecordid><originalsourceid>FETCH-LOGICAL-c425t-859eed82120f6b22b79e6e919cf0d74a22b5af6b7814b31ca97e90480cdf994b3</originalsourceid><addsrcrecordid>eNp1kEFLAzEQhYMoWKs_wNuC5-gk3WwyRynWCgUvCt5CNpvolnRTky7ivzdlBU-eBt6892b4CLlmcMsA5F1mICRQYJyibBoqTsiMCcmpUvztlMwAG6TAF3hOLnLeAgBKzmZErUK0dgzm0Mehir7a9TZF37epD0V0XWVdCGOI2VX9UOUPZ1LlQ_y6JGfehOyufuecvK4eXpZrunl-fFreb6ituThQJdC5TnHGwTct561E1zhkaD10sjZFEaZspGJ1u2DWoHQItQLbecQizcnN1LtP8XN0-aC3cUxDOak5F4hMAlPFxSZXeT7n5Lzep35n0rdmoI-A9ARIF0D6CEiLkuFTJhfv8O7SX_P_oR9xKGgR</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2259917018</pqid></control><display><type>article</type><title>Flocculation of microfibrillated cellulose in shear flow</title><source>Springer Nature - Complete Springer Journals</source><creator>Karppinen, Anni ; Saarinen, Tapio ; Salmela, Juha ; Laukkanen, Antti ; Nuopponen, Markus ; Seppälä, Jukka</creator><creatorcontrib>Karppinen, Anni ; Saarinen, Tapio ; Salmela, Juha ; Laukkanen, Antti ; Nuopponen, Markus ; Seppälä, Jukka</creatorcontrib><description>In this work, the rheological properties of microfibrillated cellulose suspensions under stepped flow and constant shear were studied using a combination of rotational dynamic rheometer and digital imaging. During each rheological measurement, the structure of the suspension was monitored through a transparent outer cylinder with a digital camera. This enabled simultaneous analysis of the suspension floc size distribution and traditional rheological characterization. In stepped flow conditions, a good correlation between suspension floc structure and flow curve measurement was found. At constant shear, the suspension structure was dependent on the shear rate and concentration of the suspension. A low shear rate resulted in heterogeneous floc structure, which was also detected by an increase in the ratio of the viscous component to elastic component in the rheological measurement. At low concentrations and 0.5 s
−1
shear rate, flow induced a formation of floc cylinders between the rotating cylinder and stationary cup surface.</description><identifier>ISSN: 0969-0239</identifier><identifier>EISSN: 1572-882X</identifier><identifier>DOI: 10.1007/s10570-012-9766-5</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Bioorganic Chemistry ; Cellulose ; Ceramics ; Chemistry ; Chemistry and Materials Science ; Composites ; Digital cameras ; Digital imaging ; Flocculation ; Fluid flow ; Glass ; Low concentrations ; Natural Materials ; Organic Chemistry ; Original Paper ; Physical Chemistry ; Polymer Sciences ; Rheological properties ; Rheology ; Rotating cylinders ; Shear flow ; Shear rate ; Size distribution ; Sustainable Development ; Viscosity</subject><ispartof>Cellulose (London), 2012-12, Vol.19 (6), p.1807-1819</ispartof><rights>Springer Science+Business Media B.V. 2012</rights><rights>Cellulose is a copyright of Springer, (2012). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c425t-859eed82120f6b22b79e6e919cf0d74a22b5af6b7814b31ca97e90480cdf994b3</citedby><cites>FETCH-LOGICAL-c425t-859eed82120f6b22b79e6e919cf0d74a22b5af6b7814b31ca97e90480cdf994b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10570-012-9766-5$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10570-012-9766-5$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Karppinen, Anni</creatorcontrib><creatorcontrib>Saarinen, Tapio</creatorcontrib><creatorcontrib>Salmela, Juha</creatorcontrib><creatorcontrib>Laukkanen, Antti</creatorcontrib><creatorcontrib>Nuopponen, Markus</creatorcontrib><creatorcontrib>Seppälä, Jukka</creatorcontrib><title>Flocculation of microfibrillated cellulose in shear flow</title><title>Cellulose (London)</title><addtitle>Cellulose</addtitle><description>In this work, the rheological properties of microfibrillated cellulose suspensions under stepped flow and constant shear were studied using a combination of rotational dynamic rheometer and digital imaging. During each rheological measurement, the structure of the suspension was monitored through a transparent outer cylinder with a digital camera. This enabled simultaneous analysis of the suspension floc size distribution and traditional rheological characterization. In stepped flow conditions, a good correlation between suspension floc structure and flow curve measurement was found. At constant shear, the suspension structure was dependent on the shear rate and concentration of the suspension. A low shear rate resulted in heterogeneous floc structure, which was also detected by an increase in the ratio of the viscous component to elastic component in the rheological measurement. At low concentrations and 0.5 s
−1
shear rate, flow induced a formation of floc cylinders between the rotating cylinder and stationary cup surface.</description><subject>Bioorganic Chemistry</subject><subject>Cellulose</subject><subject>Ceramics</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Composites</subject><subject>Digital cameras</subject><subject>Digital imaging</subject><subject>Flocculation</subject><subject>Fluid flow</subject><subject>Glass</subject><subject>Low concentrations</subject><subject>Natural Materials</subject><subject>Organic Chemistry</subject><subject>Original Paper</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Rheological properties</subject><subject>Rheology</subject><subject>Rotating cylinders</subject><subject>Shear flow</subject><subject>Shear rate</subject><subject>Size distribution</subject><subject>Sustainable Development</subject><subject>Viscosity</subject><issn>0969-0239</issn><issn>1572-882X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNp1kEFLAzEQhYMoWKs_wNuC5-gk3WwyRynWCgUvCt5CNpvolnRTky7ivzdlBU-eBt6892b4CLlmcMsA5F1mICRQYJyibBoqTsiMCcmpUvztlMwAG6TAF3hOLnLeAgBKzmZErUK0dgzm0Mehir7a9TZF37epD0V0XWVdCGOI2VX9UOUPZ1LlQ_y6JGfehOyufuecvK4eXpZrunl-fFreb6ituThQJdC5TnHGwTct561E1zhkaD10sjZFEaZspGJ1u2DWoHQItQLbecQizcnN1LtP8XN0-aC3cUxDOak5F4hMAlPFxSZXeT7n5Lzep35n0rdmoI-A9ARIF0D6CEiLkuFTJhfv8O7SX_P_oR9xKGgR</recordid><startdate>20121201</startdate><enddate>20121201</enddate><creator>Karppinen, Anni</creator><creator>Saarinen, Tapio</creator><creator>Salmela, Juha</creator><creator>Laukkanen, Antti</creator><creator>Nuopponen, Markus</creator><creator>Seppälä, Jukka</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20121201</creationdate><title>Flocculation of microfibrillated cellulose in shear flow</title><author>Karppinen, Anni ; Saarinen, Tapio ; Salmela, Juha ; Laukkanen, Antti ; Nuopponen, Markus ; Seppälä, Jukka</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c425t-859eed82120f6b22b79e6e919cf0d74a22b5af6b7814b31ca97e90480cdf994b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Bioorganic Chemistry</topic><topic>Cellulose</topic><topic>Ceramics</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Composites</topic><topic>Digital cameras</topic><topic>Digital imaging</topic><topic>Flocculation</topic><topic>Fluid flow</topic><topic>Glass</topic><topic>Low concentrations</topic><topic>Natural Materials</topic><topic>Organic Chemistry</topic><topic>Original Paper</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Rheological properties</topic><topic>Rheology</topic><topic>Rotating cylinders</topic><topic>Shear flow</topic><topic>Shear rate</topic><topic>Size distribution</topic><topic>Sustainable Development</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Karppinen, Anni</creatorcontrib><creatorcontrib>Saarinen, Tapio</creatorcontrib><creatorcontrib>Salmela, Juha</creatorcontrib><creatorcontrib>Laukkanen, Antti</creatorcontrib><creatorcontrib>Nuopponen, Markus</creatorcontrib><creatorcontrib>Seppälä, Jukka</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Cellulose (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Karppinen, Anni</au><au>Saarinen, Tapio</au><au>Salmela, Juha</au><au>Laukkanen, Antti</au><au>Nuopponen, Markus</au><au>Seppälä, Jukka</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flocculation of microfibrillated cellulose in shear flow</atitle><jtitle>Cellulose (London)</jtitle><stitle>Cellulose</stitle><date>2012-12-01</date><risdate>2012</risdate><volume>19</volume><issue>6</issue><spage>1807</spage><epage>1819</epage><pages>1807-1819</pages><issn>0969-0239</issn><eissn>1572-882X</eissn><abstract>In this work, the rheological properties of microfibrillated cellulose suspensions under stepped flow and constant shear were studied using a combination of rotational dynamic rheometer and digital imaging. During each rheological measurement, the structure of the suspension was monitored through a transparent outer cylinder with a digital camera. This enabled simultaneous analysis of the suspension floc size distribution and traditional rheological characterization. In stepped flow conditions, a good correlation between suspension floc structure and flow curve measurement was found. At constant shear, the suspension structure was dependent on the shear rate and concentration of the suspension. A low shear rate resulted in heterogeneous floc structure, which was also detected by an increase in the ratio of the viscous component to elastic component in the rheological measurement. At low concentrations and 0.5 s
−1
shear rate, flow induced a formation of floc cylinders between the rotating cylinder and stationary cup surface.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10570-012-9766-5</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0969-0239 |
| ispartof | Cellulose (London), 2012-12, Vol.19 (6), p.1807-1819 |
| issn | 0969-0239 1572-882X |
| language | eng |
| recordid | cdi_proquest_journals_2259917018 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Bioorganic Chemistry Cellulose Ceramics Chemistry Chemistry and Materials Science Composites Digital cameras Digital imaging Flocculation Fluid flow Glass Low concentrations Natural Materials Organic Chemistry Original Paper Physical Chemistry Polymer Sciences Rheological properties Rheology Rotating cylinders Shear flow Shear rate Size distribution Sustainable Development Viscosity |
| title | Flocculation of microfibrillated cellulose in shear flow |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-02T10%3A46%3A36IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Flocculation%20of%20microfibrillated%20cellulose%20in%20shear%20flow&rft.jtitle=Cellulose%20(London)&rft.au=Karppinen,%20Anni&rft.date=2012-12-01&rft.volume=19&rft.issue=6&rft.spage=1807&rft.epage=1819&rft.pages=1807-1819&rft.issn=0969-0239&rft.eissn=1572-882X&rft_id=info:doi/10.1007/s10570-012-9766-5&rft_dat=%3Cproquest_cross%3E2259917018%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2259917018&rft_id=info:pmid/&rfr_iscdi=true |