Wall slip and melt fracture of poly(lactides)
The wall slip and melt fracture behaviour of several commercial polylactides (PLAs) as well as their rheological properties under shear and extensional have been investigated. The PLAs have had weight-average molecular weights in the range of 10 4 –10 5 g/mol and studied in the temperature range of...
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| Veröffentlicht in: | Rheologica acta 2012-04, Vol.51 (4), p.357-369 |
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| creator | Othman, Norhayani Jazrawi, Bashar Mehrkhodavandi, Parisa Hatzikiriakos, Savvas G. |
| description | The wall slip and melt fracture behaviour of several commercial polylactides (PLAs) as well as their rheological properties under shear and extensional have been investigated. The PLAs have had weight-average molecular weights in the range of 10
4
–10
5
g/mol and studied in the temperature range of 160–200°C. The solution properties and linear viscoelastic behaviour of melts indicate linear microstructure behaviour. PLAs with molecular weights greater than a certain value were found to slip, with the slip velocity to increase with decrease of molecular weight. The capillary data were found to agree well with linear viscoelastic envelope once correction for slip effects was applied. The onset of melt fracture for the high molecular weight PLAs was found to occur at about 0.2 to 0.3 MPa, depending on the geometrical characteristics of the dies and independent of temperature. Addition of 0.5 wt.% of a polycaprolactone (PCL) into the PLA that exhibits melt fracture was found to be effective in eliminating and delaying the onset of melt fracture to higher shear rates. This is due to significant interfacial slip that occurs in the presence of PCL. |
| doi_str_mv | 10.1007/s00397-011-0613-7 |
| format | Article |
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4
–10
5
g/mol and studied in the temperature range of 160–200°C. The solution properties and linear viscoelastic behaviour of melts indicate linear microstructure behaviour. PLAs with molecular weights greater than a certain value were found to slip, with the slip velocity to increase with decrease of molecular weight. The capillary data were found to agree well with linear viscoelastic envelope once correction for slip effects was applied. The onset of melt fracture for the high molecular weight PLAs was found to occur at about 0.2 to 0.3 MPa, depending on the geometrical characteristics of the dies and independent of temperature. Addition of 0.5 wt.% of a polycaprolactone (PCL) into the PLA that exhibits melt fracture was found to be effective in eliminating and delaying the onset of melt fracture to higher shear rates. This is due to significant interfacial slip that occurs in the presence of PCL.</description><identifier>ISSN: 0035-4511</identifier><identifier>EISSN: 1435-1528</identifier><identifier>DOI: 10.1007/s00397-011-0613-7</identifier><identifier>CODEN: RHEAAK</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Applied sciences ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Complex Fluids and Microfluidics ; Exact sciences and technology ; Extrusion moulding ; Food Science ; Machinery and processing ; Materials Science ; Mechanical Engineering ; Melt fracture ; Melts ; Molecular weight ; Moulding ; Original Contribution ; Physical properties ; Plastics ; Polycaprolactone ; Polylactic acid ; Polymer industry, paints, wood ; Polymer Sciences ; Properties and testing ; Rheological properties ; Slip velocity ; Soft and Granular Matter ; Technology of polymers ; Viscoelasticity ; Wall slip</subject><ispartof>Rheologica acta, 2012-04, Vol.51 (4), p.357-369</ispartof><rights>Springer-Verlag 2011</rights><rights>2015 INIST-CNRS</rights><rights>Rheologica Acta is a copyright of Springer, (2011). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c383t-20b32f36f70c9a7201f56696d0ee724083146909f96ede1e38421cb8479309fe3</citedby><cites>FETCH-LOGICAL-c383t-20b32f36f70c9a7201f56696d0ee724083146909f96ede1e38421cb8479309fe3</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/s00397-011-0613-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00397-011-0613-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25756224$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Othman, Norhayani</creatorcontrib><creatorcontrib>Jazrawi, Bashar</creatorcontrib><creatorcontrib>Mehrkhodavandi, Parisa</creatorcontrib><creatorcontrib>Hatzikiriakos, Savvas G.</creatorcontrib><title>Wall slip and melt fracture of poly(lactides)</title><title>Rheologica acta</title><addtitle>Rheol Acta</addtitle><description>The wall slip and melt fracture behaviour of several commercial polylactides (PLAs) as well as their rheological properties under shear and extensional have been investigated. The PLAs have had weight-average molecular weights in the range of 10
4
–10
5
g/mol and studied in the temperature range of 160–200°C. The solution properties and linear viscoelastic behaviour of melts indicate linear microstructure behaviour. PLAs with molecular weights greater than a certain value were found to slip, with the slip velocity to increase with decrease of molecular weight. The capillary data were found to agree well with linear viscoelastic envelope once correction for slip effects was applied. The onset of melt fracture for the high molecular weight PLAs was found to occur at about 0.2 to 0.3 MPa, depending on the geometrical characteristics of the dies and independent of temperature. Addition of 0.5 wt.% of a polycaprolactone (PCL) into the PLA that exhibits melt fracture was found to be effective in eliminating and delaying the onset of melt fracture to higher shear rates. This is due to significant interfacial slip that occurs in the presence of PCL.</description><subject>Applied sciences</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Complex Fluids and Microfluidics</subject><subject>Exact sciences and technology</subject><subject>Extrusion moulding</subject><subject>Food Science</subject><subject>Machinery and processing</subject><subject>Materials Science</subject><subject>Mechanical Engineering</subject><subject>Melt fracture</subject><subject>Melts</subject><subject>Molecular weight</subject><subject>Moulding</subject><subject>Original Contribution</subject><subject>Physical properties</subject><subject>Plastics</subject><subject>Polycaprolactone</subject><subject>Polylactic acid</subject><subject>Polymer industry, paints, wood</subject><subject>Polymer Sciences</subject><subject>Properties and testing</subject><subject>Rheological properties</subject><subject>Slip velocity</subject><subject>Soft and Granular Matter</subject><subject>Technology of polymers</subject><subject>Viscoelasticity</subject><subject>Wall slip</subject><issn>0035-4511</issn><issn>1435-1528</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1UE1LxDAQDaLguvoDvBVE0EN0JmmS5iiLX7DgRfEYsm0iXbJtTbqH_fdm6aInT8PMe_Nm3iPkEuEOAdR9AuBaUUCkIJFTdURmWHJBUbDqmMwyLGgpEE_JWUprAFRSsRmhnzaEIoV2KGzXFBsXxsJHW4_b6IreF0Mfdjch923j0u05OfE2JHdxqHPy8fT4vnihy7fn18XDkta84iNlsOLMc-kV1NoqBuiFlFo24JxiJVQcS6lBey1d49DxqmRYr6pSaZ6njs_J1aQ7xP5769Jo1v02dvmkYUwygOxEZRZOrDr2KUXnzRDbjY07g2D2qZgpFZNTMftUzH7n-qBsU21DttrVbfpdZEIJyViZeWzipQx1Xy7-ffC_-A9fd24z</recordid><startdate>20120401</startdate><enddate>20120401</enddate><creator>Othman, Norhayani</creator><creator>Jazrawi, Bashar</creator><creator>Mehrkhodavandi, Parisa</creator><creator>Hatzikiriakos, Savvas G.</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</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>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20120401</creationdate><title>Wall slip and melt fracture of poly(lactides)</title><author>Othman, Norhayani ; Jazrawi, Bashar ; Mehrkhodavandi, Parisa ; Hatzikiriakos, Savvas G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-20b32f36f70c9a7201f56696d0ee724083146909f96ede1e38421cb8479309fe3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Complex Fluids and Microfluidics</topic><topic>Exact sciences and technology</topic><topic>Extrusion moulding</topic><topic>Food Science</topic><topic>Machinery and processing</topic><topic>Materials Science</topic><topic>Mechanical Engineering</topic><topic>Melt fracture</topic><topic>Melts</topic><topic>Molecular weight</topic><topic>Moulding</topic><topic>Original Contribution</topic><topic>Physical properties</topic><topic>Plastics</topic><topic>Polycaprolactone</topic><topic>Polylactic acid</topic><topic>Polymer industry, paints, wood</topic><topic>Polymer Sciences</topic><topic>Properties and testing</topic><topic>Rheological properties</topic><topic>Slip velocity</topic><topic>Soft and Granular Matter</topic><topic>Technology of polymers</topic><topic>Viscoelasticity</topic><topic>Wall slip</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Othman, Norhayani</creatorcontrib><creatorcontrib>Jazrawi, Bashar</creatorcontrib><creatorcontrib>Mehrkhodavandi, Parisa</creatorcontrib><creatorcontrib>Hatzikiriakos, Savvas G.</creatorcontrib><collection>Pascal-Francis</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>ProQuest Engineering Collection</collection><collection>Engineering 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><collection>Engineering Collection</collection><jtitle>Rheologica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Othman, Norhayani</au><au>Jazrawi, Bashar</au><au>Mehrkhodavandi, Parisa</au><au>Hatzikiriakos, Savvas G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Wall slip and melt fracture of poly(lactides)</atitle><jtitle>Rheologica acta</jtitle><stitle>Rheol Acta</stitle><date>2012-04-01</date><risdate>2012</risdate><volume>51</volume><issue>4</issue><spage>357</spage><epage>369</epage><pages>357-369</pages><issn>0035-4511</issn><eissn>1435-1528</eissn><coden>RHEAAK</coden><abstract>The wall slip and melt fracture behaviour of several commercial polylactides (PLAs) as well as their rheological properties under shear and extensional have been investigated. The PLAs have had weight-average molecular weights in the range of 10
4
–10
5
g/mol and studied in the temperature range of 160–200°C. The solution properties and linear viscoelastic behaviour of melts indicate linear microstructure behaviour. PLAs with molecular weights greater than a certain value were found to slip, with the slip velocity to increase with decrease of molecular weight. The capillary data were found to agree well with linear viscoelastic envelope once correction for slip effects was applied. The onset of melt fracture for the high molecular weight PLAs was found to occur at about 0.2 to 0.3 MPa, depending on the geometrical characteristics of the dies and independent of temperature. Addition of 0.5 wt.% of a polycaprolactone (PCL) into the PLA that exhibits melt fracture was found to be effective in eliminating and delaying the onset of melt fracture to higher shear rates. This is due to significant interfacial slip that occurs in the presence of PCL.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/s00397-011-0613-7</doi><tpages>13</tpages></addata></record> |
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| subjects | Applied sciences Characterization and Evaluation of Materials Chemistry and Materials Science Complex Fluids and Microfluidics Exact sciences and technology Extrusion moulding Food Science Machinery and processing Materials Science Mechanical Engineering Melt fracture Melts Molecular weight Moulding Original Contribution Physical properties Plastics Polycaprolactone Polylactic acid Polymer industry, paints, wood Polymer Sciences Properties and testing Rheological properties Slip velocity Soft and Granular Matter Technology of polymers Viscoelasticity Wall slip |
| title | Wall slip and melt fracture of poly(lactides) |
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