甲基纤维素.docx

MethylCellulose(MC)BriefIntroductionVitalcelloseMethylcelluloseisgenerallyconsideredsafe,non-toxicznon-allergeniczandnon-irritating.Inthepharmaceuticalindustry,Methylcelluloseoflowormediumviscositycanbeusedasabinderfortabletsandtabletcoating.High-viscosityproductsareprimarilyusedinthefoodindustry,withmoisturizing,thickening,emulsifying,andfilm-formingproperties,aswellasimpermeabilitytooil,reducingtheoilabsorptionrateoffriedfoodsandmakingthefoodhealthier.Dissolutionmethod1. Hotwatermethod:SinceMethylcelluloseisnotdissolvedinhotwater,MCcanbeuniformlydispersedinhotwaterattheinitialstage,andthenwhencooled,twotypicaldissolvingmethodsaredescribedasfollows:(1) Puttherequiredhotwaterinthecontainerandheatittoabout70oC.Then,graduallyaddtheMCwithslowstirring;initially,theMCwillfloatonthewater'ssurfaceandslowlyformaslurry,whichwascooledwithstirring.(2) Add如Or羽Oftherequiredwaterintothecontainerandheatitto70oC.Accordingtomethod(I)zdisperseMCtoprepareahotwaterslurry;thenaddtheremainingamountofcoldoricewaterintotheslurry.Themixturewillbecooledafterstirring.2. Powdermixingmethod:fullydisperseMCpowderparticleswithanequalormoreconsiderableamountofotherpowderyingredientsbydrymixing,andthenaddwatertodissolve;therefore,MCcanbedissolvedwithoutagglomeration.3. Organicsolventwettingmethod:Methylcelluloseispre-dispersedorwettedwithorganicsolvents,suchasethanol,ethyleneglycol,oroil,andthendissolvedinwater,thenMCcanalsobedissolvedsmoothlyatthistime.TechnicalSpecificationsItemSpecificationsMethoxy%27.5-31.5Gelationtemperature50-55°CViscosity(mpa.sz2%solu.z20°C)4000,30000,50000LossonDryingWT%5.00PH5.0-8.0ResidueonignitionWT%1.5HeavyMetals(ppm)20package:20kgdrum1*20feetcontainercanload7.5MTwithpalletizedandIOMTwithoutPalletized