DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Kwang Man | ko |
dc.contributor.author | Kim, Tae Kyun | ko |
dc.contributor.author | Kim, Sanghyo | ko |
dc.contributor.author | Chung, In Jae | ko |
dc.date.accessioned | 2013-02-28T04:05:35Z | - |
dc.date.available | 2013-02-28T04:05:35Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1997-01 | - |
dc.identifier.citation | THE KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.14, no.1, pp.8 - 14 | - |
dc.identifier.issn | 0256-1115 | - |
dc.identifier.uri | http://hdl.handle.net/10203/72693 | - |
dc.description.abstract | Steady-state shear stress (<(tau)over bar>(12)) and first normal stress difference (N-1) of liquid crystalline polymers at low shear rates were examined by using a mesoscopic constitutive equation set including the idea of initial domain size. For the applicability to the weak shear now at low shear rates, a Hinch-Leal closure approximation was adopted in the calculation of the constitutive equation set. The steady-state rheological behaviors predicted by adopting the Hinch-Leal approximation were compared with those by the Doi simple decoupling approximation. It could be predicted from the plot of N-1 versus <(tau)over bar>(12) that smaller domains distributed isotropically at a quiescent state might maintain the isotropic domain distribution even at the imposition of moderate shear rate, and then could be changed to the ordered (or partially elongated) domain phase by a further increase of shear rate. Such change of the polydomain structure with the increase in shear rate could be proved more precisely by the transient rheological behaviors of N-1 and <(tau)over bar>(12) after the start-up of shear flow. | - |
dc.language | English | - |
dc.publisher | 한국화학공학회 | - |
dc.title | Structural change of polydomain in the liquid crystalline polymers by weak shear flow | - |
dc.type | Article | - |
dc.identifier.wosid | A1997XF06300002 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 8 | - |
dc.citation.endingpage | 14 | - |
dc.citation.publicationname | THE KOREAN JOURNAL OF CHEMICAL ENGINEERING | - |
dc.identifier.doi | 10.1007/BF02706035 | - |
dc.contributor.nonIdAuthor | Kim, Kwang Man | - |
dc.contributor.nonIdAuthor | Kim, Tae Kyun | - |
dc.contributor.nonIdAuthor | Kim, Sanghyo | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | liquid crystalline polymers | - |
dc.subject.keywordAuthor | polydomain structure | - |
dc.subject.keywordAuthor | shear flow | - |
dc.subject.keywordAuthor | rheological behaviors | - |
dc.subject.keywordPlus | MOLECULAR KINETIC-EQUATION | - |
dc.subject.keywordPlus | RODLIKE POLYMERS | - |
dc.subject.keywordPlus | NEMATIC PHASE | - |
dc.subject.keywordPlus | RHEOLOGICAL PROPERTIES | - |
dc.subject.keywordPlus | CONSTITUTIVE EQUATION | - |
dc.subject.keywordPlus | TRANSIENT | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | ORIENTATION | - |
dc.subject.keywordPlus | TEXTURES | - |
dc.subject.keywordPlus | STRESS | - |
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