甲基纤维素.docx

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1、MethylCellulose(MC)BriefIntroductionVitalcelloseMethylcelluloseisgenerallyconsideredsafe,non-toxicznon-allergeniczandnon-irritating.Inthepharmaceuticalindustry,Methylcelluloseoflowormediumviscositycanbeusedasabinderfortabletsandtabletcoating.High-viscosityproductsareprimarilyusedinthefoodindustry,wi

2、thmoisturizing,thickening,emulsifying,andfilm-formingproperties,aswellasimpermeabilitytooil,reducingtheoilabsorptionrateoffriedfoodsandmakingthefoodhealthier.Dissolutionmethod1. Hotwatermethod:SinceMethylcelluloseisnotdissolvedinhotwater,MCcanbeuniformlydispersedinhotwaterattheinitialstage,andthenwh

3、encooled,twotypicaldissolvingmethodsaredescribedasfollows:(1) Puttherequiredhotwaterinthecontainerandheatittoabout70oC.Then,graduallyaddtheMCwithslowstirring;initially,theMCwillfloatonthewaterssurfaceandslowlyformaslurry,whichwascooledwithstirring.(2) Add如Or羽Oftherequiredwaterintothecontainerandheat

4、itto70oC.Accordingtomethod(I)zdisperseMCtoprepareahotwaterslurry;thenaddtheremainingamountofcoldoricewaterintotheslurry.Themixturewillbecooledafterstirring.2. Powdermixingmethod:fullydisperseMCpowderparticleswithanequalormoreconsiderableamountofotherpowderyingredientsbydrymixing,andthenaddwatertodis

5、solve;therefore,MCcanbedissolvedwithoutagglomeration.3. Organicsolventwettingmethod:Methylcelluloseispre-dispersedorwettedwithorganicsolvents,suchasethanol,ethyleneglycol,oroil,andthendissolvedinwater,thenMCcanalsobedissolvedsmoothlyatthistime.TechnicalSpecificationsItemSpecificationsMethoxy%27.5-31.5Gelationtemperature50-55CViscosity(mpa.sz2%solu.z20C)4000,30000,50000LossonDryingWT%5.00PH5.0-8.0ResidueonignitionWT%1.5HeavyMetals(ppm)20package:20kgdrum1*20feetcontainercanload7.5MTwithpalletizedandIOMTwithoutPalletized