Continuum model for the simulation of fiber spinning, with quiescent and flow-induced crystallization
A macroscopic model for the description of low- and high-speed fiber spinning of crystallizing polymers is proposed. The model incorporates air drag, air cooling, gravity, surface tension and the viscoelastic rheological behavior of the melt. The crystallization dynamics are formulated through a set...
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| Veröffentlicht in: | Journal of non-Newtonian fluid mechanics 2008-04, Vol.150 (2), p.177-195 |
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| container_end_page | 195 |
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| container_title | Journal of non-Newtonian fluid mechanics |
| container_volume | 150 |
| creator | van Meerveld, Jan Hütter, Markus Peters, Gerrit W.M. |
| description | A macroscopic model for the description of low- and high-speed fiber spinning of crystallizing polymers is proposed. The model incorporates air drag, air cooling, gravity, surface tension and the viscoelastic rheological behavior of the melt. The crystallization dynamics are formulated through a set of rate equations, which describe the quiescent nucleation and growth of spherulites, as well as the flow-induced nucleation and longitudinal growth of fibrils. The influence of the crystallization, as well as the glass transition, on the rheological response is accounted for through a viscous stress contribution. The proposed model realistically describes the velocity, temperature, stress, apparent viscosity and crystallinity profile along the spinline under different processing conditions. Moreover, using a single set of model parameters a fair description of the experimental velocity and temperature profiles is obtained for both low- and high-speed spinning conditions of nylon 66. For poly(ethylene terephthalate) the model describes high-speed spinning conditions only. |
| doi_str_mv | 10.1016/j.jnnfm.2007.10.020 |
| format | Article |
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The model incorporates air drag, air cooling, gravity, surface tension and the viscoelastic rheological behavior of the melt. The crystallization dynamics are formulated through a set of rate equations, which describe the quiescent nucleation and growth of spherulites, as well as the flow-induced nucleation and longitudinal growth of fibrils. The influence of the crystallization, as well as the glass transition, on the rheological response is accounted for through a viscous stress contribution. The proposed model realistically describes the velocity, temperature, stress, apparent viscosity and crystallinity profile along the spinline under different processing conditions. Moreover, using a single set of model parameters a fair description of the experimental velocity and temperature profiles is obtained for both low- and high-speed spinning conditions of nylon 66. 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The model incorporates air drag, air cooling, gravity, surface tension and the viscoelastic rheological behavior of the melt. The crystallization dynamics are formulated through a set of rate equations, which describe the quiescent nucleation and growth of spherulites, as well as the flow-induced nucleation and longitudinal growth of fibrils. The influence of the crystallization, as well as the glass transition, on the rheological response is accounted for through a viscous stress contribution. The proposed model realistically describes the velocity, temperature, stress, apparent viscosity and crystallinity profile along the spinline under different processing conditions. Moreover, using a single set of model parameters a fair description of the experimental velocity and temperature profiles is obtained for both low- and high-speed spinning conditions of nylon 66. For poly(ethylene terephthalate) the model describes high-speed spinning conditions only.</description><subject>Applied sciences</subject><subject>Crystal morphology</subject><subject>Exact sciences and technology</subject><subject>Fiber spinning</subject><subject>Fibers and threads</subject><subject>Flow-induced crystallization of polymer melts</subject><subject>Forms of application and semi-finished materials</subject><subject>Nylon 66</subject><subject>Poly(ethylene terephthalate)</subject><subject>Polymer industry, paints, wood</subject><subject>Separation of crystal nucleation and growth</subject><subject>Technology of polymers</subject><issn>0377-0257</issn><issn>1873-2631</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kDFvFDEQhS0EEkfIL6BxAxV7zNq73nVBgU4kIEWiIbXls8fEJ699sb1E4dfjy0WUTDPS6L03Mx8h73rY9tCLT4ftIUa3bBnA1CZbYPCCbPp54h0TvH9JNsCnqQM2Tq_Jm1IO0GrkYkNwl2L1cV0XuiSLgbqUab1DWvyyBl19ijQ56vweMy1HH6OPvz7SB1_v6P3qsRiMlepoqQvpofPRrgYtNfmxVB2C__MU8Za8cjoUvHzuF-T26uvP3bfu5sf1992Xm85wMdRur5kU0oIZwEmhAaSTIFDvxSAHJyc7sZmNfLaWMwkjMjaacZ56Z9kgNCK_IB_Oucec7lcsVS2-XRiCjpjWojibZmhEmpCfhSanUjI6dcx-0flR9aBOSNVBPSFVJ6SnYUPaXO-f43UxOriso_Hln5U1vsClaLrPZx22X397zKoYj7GB8RlNVTb5_-75C9dgjr0</recordid><startdate>20080414</startdate><enddate>20080414</enddate><creator>van Meerveld, Jan</creator><creator>Hütter, Markus</creator><creator>Peters, Gerrit W.M.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20080414</creationdate><title>Continuum model for the simulation of fiber spinning, with quiescent and flow-induced crystallization</title><author>van Meerveld, Jan ; Hütter, Markus ; Peters, Gerrit W.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-ba2969d0c40f96a009f906eab6494f97d7282538dd32905e225c5871fd246aee3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Crystal morphology</topic><topic>Exact sciences and technology</topic><topic>Fiber spinning</topic><topic>Fibers and threads</topic><topic>Flow-induced crystallization of polymer melts</topic><topic>Forms of application and semi-finished materials</topic><topic>Nylon 66</topic><topic>Poly(ethylene terephthalate)</topic><topic>Polymer industry, paints, wood</topic><topic>Separation of crystal nucleation and growth</topic><topic>Technology of polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>van Meerveld, Jan</creatorcontrib><creatorcontrib>Hütter, Markus</creatorcontrib><creatorcontrib>Peters, Gerrit W.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of non-Newtonian fluid mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>van Meerveld, Jan</au><au>Hütter, Markus</au><au>Peters, Gerrit W.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Continuum model for the simulation of fiber spinning, with quiescent and flow-induced crystallization</atitle><jtitle>Journal of non-Newtonian fluid mechanics</jtitle><date>2008-04-14</date><risdate>2008</risdate><volume>150</volume><issue>2</issue><spage>177</spage><epage>195</epage><pages>177-195</pages><issn>0377-0257</issn><eissn>1873-2631</eissn><coden>JNFMDI</coden><abstract>A macroscopic model for the description of low- and high-speed fiber spinning of crystallizing polymers is proposed. The model incorporates air drag, air cooling, gravity, surface tension and the viscoelastic rheological behavior of the melt. The crystallization dynamics are formulated through a set of rate equations, which describe the quiescent nucleation and growth of spherulites, as well as the flow-induced nucleation and longitudinal growth of fibrils. The influence of the crystallization, as well as the glass transition, on the rheological response is accounted for through a viscous stress contribution. The proposed model realistically describes the velocity, temperature, stress, apparent viscosity and crystallinity profile along the spinline under different processing conditions. Moreover, using a single set of model parameters a fair description of the experimental velocity and temperature profiles is obtained for both low- and high-speed spinning conditions of nylon 66. 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| ispartof | Journal of non-Newtonian fluid mechanics, 2008-04, Vol.150 (2), p.177-195 |
| issn | 0377-0257 1873-2631 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_32780263 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Crystal morphology Exact sciences and technology Fiber spinning Fibers and threads Flow-induced crystallization of polymer melts Forms of application and semi-finished materials Nylon 66 Poly(ethylene terephthalate) Polymer industry, paints, wood Separation of crystal nucleation and growth Technology of polymers |
| title | Continuum model for the simulation of fiber spinning, with quiescent and flow-induced crystallization |
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