Tackling slip effects in the nonlinear flow properties of gellan fluid gels
ABSTRACT Gellan gum is a biopolymer widely used in the food, pharmaceutical, chemical, and agrochemical fields. Its ability to form a strong gel makes it possible to produce fluid gels. These materials present an apparent yield stress, but its value could be influenced by the wall‐slip effect when p...
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| Veröffentlicht in: | Journal of applied polymer science 2019-01, Vol.136 (1), p.n/a |
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| creator | García, Mª Carmen Sánchez, Sergio Trujillo‐Cayado, Luis A. Muñoz, José Alfaro, Mª Carmen |
| description | ABSTRACT
Gellan gum is a biopolymer widely used in the food, pharmaceutical, chemical, and agrochemical fields. Its ability to form a strong gel makes it possible to produce fluid gels. These materials present an apparent yield stress, but its value could be influenced by the wall‐slip effect when performing the rheological measurements by which it is determined. In this work, the influence of the measuring surface and gap on flow behavior was first determined. The tests revealed the need to use geometries with rough surfaces, although the sample thickness using a parallel plate has no influence. Subsequently, the value of yield stress was obtained by means of creep tests (found to be 4.3 Pa), and, finally, the effect of wall slip on the dynamic viscoelastic behavior was assessed. There was an influence on the extension of the linear viscoelastic region, but not on the viscoelastic functions of the mechanical spectra. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46900. |
| doi_str_mv | 10.1002/app.46900 |
| format | Article |
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Gellan gum is a biopolymer widely used in the food, pharmaceutical, chemical, and agrochemical fields. Its ability to form a strong gel makes it possible to produce fluid gels. These materials present an apparent yield stress, but its value could be influenced by the wall‐slip effect when performing the rheological measurements by which it is determined. In this work, the influence of the measuring surface and gap on flow behavior was first determined. The tests revealed the need to use geometries with rough surfaces, although the sample thickness using a parallel plate has no influence. Subsequently, the value of yield stress was obtained by means of creep tests (found to be 4.3 Pa), and, finally, the effect of wall slip on the dynamic viscoelastic behavior was assessed. There was an influence on the extension of the linear viscoelastic region, but not on the viscoelastic functions of the mechanical spectra. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46900.</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.46900</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Biopolymers ; Creep tests ; Gellan gum ; Gels ; Materials science ; Organic chemistry ; Parallel plates ; Polymers ; polysaccharides ; Rheological properties ; rheology ; Viscoelasticity ; viscosity and viscoelasticity ; Wall slip ; Yield strength ; Yield stress</subject><ispartof>Journal of applied polymer science, 2019-01, Vol.136 (1), p.n/a</ispartof><rights>2018 Wiley Periodicals, Inc.</rights><rights>2019 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3320-35620ec47b89c9eab5fc574c5f3b583269499a2e4a774ba7360e8a3f29cd48d93</citedby><cites>FETCH-LOGICAL-c3320-35620ec47b89c9eab5fc574c5f3b583269499a2e4a774ba7360e8a3f29cd48d93</cites><orcidid>0000-0002-0110-2290</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.46900$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.46900$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>García, Mª Carmen</creatorcontrib><creatorcontrib>Sánchez, Sergio</creatorcontrib><creatorcontrib>Trujillo‐Cayado, Luis A.</creatorcontrib><creatorcontrib>Muñoz, José</creatorcontrib><creatorcontrib>Alfaro, Mª Carmen</creatorcontrib><title>Tackling slip effects in the nonlinear flow properties of gellan fluid gels</title><title>Journal of applied polymer science</title><description>ABSTRACT
Gellan gum is a biopolymer widely used in the food, pharmaceutical, chemical, and agrochemical fields. Its ability to form a strong gel makes it possible to produce fluid gels. These materials present an apparent yield stress, but its value could be influenced by the wall‐slip effect when performing the rheological measurements by which it is determined. In this work, the influence of the measuring surface and gap on flow behavior was first determined. The tests revealed the need to use geometries with rough surfaces, although the sample thickness using a parallel plate has no influence. Subsequently, the value of yield stress was obtained by means of creep tests (found to be 4.3 Pa), and, finally, the effect of wall slip on the dynamic viscoelastic behavior was assessed. There was an influence on the extension of the linear viscoelastic region, but not on the viscoelastic functions of the mechanical spectra. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46900.</description><subject>Biopolymers</subject><subject>Creep tests</subject><subject>Gellan gum</subject><subject>Gels</subject><subject>Materials science</subject><subject>Organic chemistry</subject><subject>Parallel plates</subject><subject>Polymers</subject><subject>polysaccharides</subject><subject>Rheological properties</subject><subject>rheology</subject><subject>Viscoelasticity</subject><subject>viscosity and viscoelasticity</subject><subject>Wall slip</subject><subject>Yield strength</subject><subject>Yield stress</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kLtOwzAUhi0EEqUw8AaWmBjS-pbEHquKm6hEhzJbjntcXEIS7ERV3x6XsDIdHX3fuehH6JaSGSWEzU3XzUShCDlDE0pUmYmCyXM0SYxmUqn8El3FuCeE0pwUE_S6Mfaz9s0Ox9p3GJwD20fsG9x_AG7aJjEwAbu6PeAutB2E3kPErcM7qGvTJDL47amJ1-jCmTrCzV-dovfHh83yOVu9Pb0sF6vMcs5IxvOCEbCirKSyCkyVO5uXwuaOV7nkrFBCKcNAmLIUlSl5QUAa7piyWyG3ik_R3bg3_fM9QOz1vh1Ck05qRrlgQpSSJet-tGxoYwzgdBf8lwlHTYk-ZaVTVvo3q-TOR_fgazj-L-rFej1O_ACa0GpJ</recordid><startdate>20190105</startdate><enddate>20190105</enddate><creator>García, Mª Carmen</creator><creator>Sánchez, Sergio</creator><creator>Trujillo‐Cayado, Luis A.</creator><creator>Muñoz, José</creator><creator>Alfaro, Mª Carmen</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-0110-2290</orcidid></search><sort><creationdate>20190105</creationdate><title>Tackling slip effects in the nonlinear flow properties of gellan fluid gels</title><author>García, Mª Carmen ; Sánchez, Sergio ; Trujillo‐Cayado, Luis A. ; Muñoz, José ; Alfaro, Mª Carmen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3320-35620ec47b89c9eab5fc574c5f3b583269499a2e4a774ba7360e8a3f29cd48d93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Biopolymers</topic><topic>Creep tests</topic><topic>Gellan gum</topic><topic>Gels</topic><topic>Materials science</topic><topic>Organic chemistry</topic><topic>Parallel plates</topic><topic>Polymers</topic><topic>polysaccharides</topic><topic>Rheological properties</topic><topic>rheology</topic><topic>Viscoelasticity</topic><topic>viscosity and viscoelasticity</topic><topic>Wall slip</topic><topic>Yield strength</topic><topic>Yield stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>García, Mª Carmen</creatorcontrib><creatorcontrib>Sánchez, Sergio</creatorcontrib><creatorcontrib>Trujillo‐Cayado, Luis A.</creatorcontrib><creatorcontrib>Muñoz, José</creatorcontrib><creatorcontrib>Alfaro, Mª Carmen</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>García, Mª Carmen</au><au>Sánchez, Sergio</au><au>Trujillo‐Cayado, Luis A.</au><au>Muñoz, José</au><au>Alfaro, Mª Carmen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tackling slip effects in the nonlinear flow properties of gellan fluid gels</atitle><jtitle>Journal of applied polymer science</jtitle><date>2019-01-05</date><risdate>2019</risdate><volume>136</volume><issue>1</issue><epage>n/a</epage><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>ABSTRACT
Gellan gum is a biopolymer widely used in the food, pharmaceutical, chemical, and agrochemical fields. Its ability to form a strong gel makes it possible to produce fluid gels. These materials present an apparent yield stress, but its value could be influenced by the wall‐slip effect when performing the rheological measurements by which it is determined. In this work, the influence of the measuring surface and gap on flow behavior was first determined. The tests revealed the need to use geometries with rough surfaces, although the sample thickness using a parallel plate has no influence. Subsequently, the value of yield stress was obtained by means of creep tests (found to be 4.3 Pa), and, finally, the effect of wall slip on the dynamic viscoelastic behavior was assessed. There was an influence on the extension of the linear viscoelastic region, but not on the viscoelastic functions of the mechanical spectra. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46900.</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/app.46900</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-0110-2290</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Biopolymers Creep tests Gellan gum Gels Materials science Organic chemistry Parallel plates Polymers polysaccharides Rheological properties rheology Viscoelasticity viscosity and viscoelasticity Wall slip Yield strength Yield stress |
| title | Tackling slip effects in the nonlinear flow properties of gellan fluid gels |
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