Carboxymethylcellulose (CMC) le methylcellulose (MC) ka bobeli li tsoa ho cellulose, polymer ea tlhaho e fumanehang maboteng a lisele tsa limela. Li-derivatives tsena li sebelisoa haholo liindastering tse fapaneng ka lebaka la thepa ea tsona e ikhethang. Leha ho na le ho arolelana ho ts'oana, CMC le MC li na le phapang e ikhethang meahong ea tsona ea lik'hemik'hale, thepa, lits'ebetso le ts'ebeliso ea indasteri.
1. Sebopeho sa Lik'hemik'hale:
Carboxymethylcellulose (CMC):
CMC e entsoe ka etherification ea cellulose e nang le chloroacetic acid, e bakang ho nkeloa sebaka ha lihlopha tsa hydroxyl (-OH) mokokotlong oa cellulose ka lihlopha tsa carboxymethyl (-CH2COOH).
The degree of substitution (DS) ho CMC e bolela palo e tloaelehileng ea lihlopha tsa carboxymethyl ka yuniti ea tsoekere ka har'a ketane ea cellulose. Paramethara ena e khetha thepa ea CMC, ho kenyelletsa le solubility, viscosity, le boitšoaro ba rheological.
Methylcellulose (MC):
MC e hlahisoa ka ho nkela lihlopha tsa hydroxyl sebakeng sa selulose ka lihlopha tsa methyl (-CH3) ka etherification.
Joalo ka CMC, thepa ea MC e susumetsoa ke tekanyo ea ho nkela sebaka, e lekanyetsang boholo ba methylation haufi le ketane ea cellulose.
2.Solubility:
Carboxymethylcellulose (CMC):
CMC e qhibiliha ka metsing 'me e etsa litharollo tse bonaletsang, tse nang le viscous.
Ho qhibiliha ha eona ho itšetlehile ka pH, ka ho qhibiliha ho hoholo ha maemo a alkaline.
Methylcellulose (MC):
MC e boetse e qhibiliha ka metsing, empa ho qhibiliha ha eona ho itšetlehile ka mocheso.
Ha e qhibiliha ka metsing a batang, MC e etsa gel, e fetohang ha e futhumatsa. Thepa ena e etsa hore e loketse lits'ebetso tse hlokang gelation e laoloang.
3.Viscosity:
CMC:
E bonts'a viscosity e phahameng ka tharollo ea metsi, e kenyang letsoho ho matla a eona.
Viscosity ea eona e ka fetoloa ka ho fetola lintlha tse kang ho tsepamisa mohopolo, tekanyo ea ho fetola, le pH.
MC:
E bonts'a boitšoaro ba viscosity e ts'oanang le CMC empa hangata ha e na viscous.
Viscosity ea tharollo ea MC le eona e ka laoloa ka ho fetola maemo a kang mocheso le mahloriso.
4.Tlhahiso ea Lifilimi:
CMC:
E etsa lifilimi tse hlakileng, tse tenyetsehang ha li etsoa ho tsoa mothapong oa eona oa metsi.
Lifilimi tsena li fumana lits'ebetso liindastering tse kang ho paka lijo le meriana.
MC:
E boetse e khona ho etsa lifilimi empa e atisa ho ba bobebe ho feta lifilimi tsa CMC.
5.Indasteri ea Lijo:
CMC:
E sebelisoa haholo joalo ka stabilizer, thickener, le emulsifier lihlahisoa tsa lijo tse kang ice cream, li-sauces le li-dressings.
Bokhoni ba eona ba ho fetola sebopeho le molomo oa lijo bo etsa hore e be ea bohlokoa mekhoeng ea lijo.
MC:
E sebelisetsoa merero e ts'oanang le CMC lihlahisoa tsa lijo, haholo lits'ebetsong tse hlokang ho etsoa le ho tsitsisa ha li-gel.
6.Litlhare tsa Meriana:
CMC:
E sebelisoa mefuteng ea meriana e le setlamo se kopanyang, disintegrant, le viscosity modifier ha ho etsoa matlapa.
E boetse e sebelisoa mefuteng ea lihlooho tse kang litlolo le li-gel ka lebaka la thepa ea eona ea rheological.
MC:
Hangata e sebelisoa e le ntho e teteaneng le ea gelling ho meriana, haholo-holo meriana ea mokelikeli oa molomo le tharollo ea mahlo.
7.Lihlahisoa tsa Tlhokomelo ea Motho:
CMC:
E fumanoa linthong tse fapaneng tsa tlhokomelo ea motho joalo ka sesepa sa meno, shampoo, le litlolo e le mokhoa oa ho tsitsisa le ho tiisa.
MC:
E sebelisoa lits'ebetsong tse ts'oanang le tsa CMC, e kenya letsoho ho sebopeho le botsitso ba litlhophiso tsa tlhokomelo ea motho.
8. Lisebelisoa tsa Indasteri:
CMC:
E hiriloe liindastering tse kang masela, pampiri le lirafshoa ka lebaka la bokhoni ba eona ba ho sebetsa joalo ka setlamo, mofetoleli oa rheology, le moemeli oa ho boloka metsi.
MC:
E fumana tšebeliso ea thepa ea kaho, lipente le likhomaretsi ka lebaka la ho tenya le ho tlama ha eona.
athe carboxymethylcellulose (CMC) le methylcellulose (MC) ka bobeli li tsoa ho selulose tse nang le lits'ebetso tse fapaneng tsa indasteri, li bonts'a liphapang meahong ea tsona ea lik'hemik'hale, boits'oaro ba solubility, profiles ea viscosity, le lits'ebetso. Ho utloisisa liphapang tsena ho bohlokoa bakeng sa ho khetha motsoako o nepahetseng bakeng sa ts'ebeliso e ikhethang liindastering tse fapaneng, ho tloha ho lijo le meriana ho isa tlhokomelong ea motho le lits'ebetso tsa indasteri. Hore na ke tlhokahalo ea setenya se sa utloeng bohloko sa pH joalo ka CMC lihlahisoa tsa lijo kapa sesebelisoa sa gelling se arabelang mocheso joalo ka MC mefuteng ea meriana, karolo ka 'ngoe e fana ka melemo e ikhethileng e ipapisitseng le litlhoko tse ikhethileng makaleng a fapaneng.
Nako ea poso: Mar-22-2024