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The Impact of Liquid Carbon Dioxide as a Detergent on Textile Polymers  
The Impact of Liquid Carbon Dioxide as a Detergent on Textile Polymers
資料類型: PDF文件
關鍵詞: ScC02  Polystyrene  Sever  conditions  
資料大?。?/td> 73K
所屬學科: 分子表征
來源: 第六屆亞歐研討會上處理和性能增強聚合物會議文集(2013.6.2-6 武漢)
簡介:
LiquidCarbonDioxide(C02)isarecentlydevelopedtechnologythatmaybecomecommerciallyavailable.Liquidcarbondioxidehasbeenusedforcleaninginotherprocessesforseveralyears.Duringtheprocess,clothesareimmersedinliquidC02inanenclosedcylindricalbasket(insideapressurevesselthatisunderpressuresof700t01,000psig).Theloadisthenagitatedinsidethebasketbyhighvelocityfluidjetsormechanicalactiontoremovesoils.Oncethecleaningprocessisfinished,thegarmentsareremovedandneednodrying.ManufacturersindicatethatbecauseliquidC02haslowviscosity,bettercleaningispossiblebecausesmallerparticlescanberemovedfromthesurfacewithlessredeposition.InvestigationoftheliquidC020nthepolymerstextiledosinglaundryprocessandunderstandingthedifficultiesarethecoreobjectivesofthispaper;aswellasdevelopinganoptimummethodforminimizingC02detergentundernormalandsupercriticalconditions,byusingspeciallyconstructedcylindricalviewcellwith20pticalwindowstomonitorandtakephotographsofspecimensduringdifferentstages.Differentpolymers(e.g.styrenemonomer,SM)havebeentestedunderbothnormalandsupercriticalconditions.Effectivenesswasnotobservedwhenthepolymerwasinitiallyatconditionsbelowglasstransitiontemperature(Tg),butwasobservedforinitialconditionsabovetheTg.Itwasalsofoundthatmoreextensiveeffectivenessoccurredathighertemperatures(1000Cversus700C)despitelessC02beingoriginallyabsorbedinthesample.Thiswasattributedtolowerviscositiesandhigherdiffusivitiesatthehighertemperature.
作者: S. A1-Enezi, M. AI_Smahan
上傳時間: 2013-06-21 16:58:49
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