The Impact of Liquid Carbon Dioxide as a Detergent on Textile Polymers，第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）-中国聚合物网,论文下载

The Impact of Liquid Carbon Dioxide as a Detergent on Textile Polymers

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ScC02 Polystyrene Sever conditions

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分子表征

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第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）

简介：

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

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2013-06-21 16:58:49

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