乙基纤维素.docx

EthylCellulose(EC)BriefIntroductionEthylcellulose(EC)isawhiteorlightgrayflowablepowderorgranule.Itisodorlessandtasteless.ECisgenerallyinsolubleinwaterbutindifferentorganicsolventssuchasalcohol,ether,ketone,arene,halohydrocarbon,andotherorganicsolvents.Therefore,itcanbecompatiblewithvariouskindsofcelluloses,resins,andalmostallplasticizers;EChaslowflammability,lowhygroscopicity,andgoodelectricalproperties,anditsfilmisveryGoodmechanicalstrengthandflexibilityoverawidetemperaturerange.Dissolutionmethod：Themostcommonlyusedmixedsolventofethylcellulose(DS:2.32.6)isaromatichydrocarbonandalcohol.Aromaticscanbeusedbenzene,toluene,ethylbenzene,andxylene,andthelike.Thedosageis6080%;alcoholcanbemethanolandethanol.Thedosageis20-40%.SlowlyaddtheECtothesolventcontainerunderstirringuntilitisutterlywettedanddissolved.Mainapplicationsoftheproduct:Pharmaceuticalindustry:Ethylcellulose(EC)ismainlyappliedintabletbinder,whichcanincreasethehardnessofthetabletandreduceitsfriabilityofthetablet.Asafilm-fbrmingagent,itcanimprovethetablet'sappearance,isolatethetaste,preventthedrugfromdeterioratingduetomoisture,andincreasethesafestorageperiodofthedrug.Industrialindustry:Ethylcellulose(EC)iswidelyusedinvariouscoatings,suchasmetalsurface,paperproducts,rubber,andhotmeltcoatings,aswellasintegratedcircuits;usedinink,suchasmagneticink,gravure,andflexographicink;usedininsulatingmaterialsandcablecoatings;usedaspolymerdispersants;usedasadhesivesforcementedcarbideandceramics;TechnicalspecificationItemSpecificationsKgradeNgradeTgradeEthoxycontent45.0-47.447.5-49.5>49.6Residueonignition(%)0.40Viscosity(m.Pas20)3,5,7,10,20,50,70,100,150,200,300Lossondrying(%)3.0Solubility(%)>99.0HeavyMetaI(%)<0.0020package:20kgdrumor10kgdrum