1. hygroscopicity
Carboxymethylcellulose sodium CMC e na le ho monya metsi ho ts'oanang le likhomaretsi tse ling tse qhibilihang ka metsing.Mongobo oa eona o eketseha ka ho eketseha ha mongobo 'me o fokotseha ha mocheso o ntse o eketseha.Ha DS e phahame, ho ba le mongobo o mongata oa moea, le sehlahisoa Ho monyeha ha metsi ho matla.Haeba mokotla o buloa 'me o behoa moeeng o nang le mongobo o phahameng ka nako e itseng, mongobo oa oona o ka fihla ho 20%.Ha metsi a le 15%, mofuta oa phofo oa sehlahisoa o ke ke oa fetoha.Ha metsi a fihla ho 20%, likaroloana tse ling li tla bokella le ho khomarelana, ho fokotsa metsi a phofo.CMC e tla eketseha ka boima ba 'mele ka mor'a ho monya mongobo, kahoo lihlahisoa tse ling tse sa pakoang li tlameha ho kenngoa ka lijaneng tse sa keneleng moea kapa li bolokoe sebakeng se omileng.
2. Carboxymethyl Cellulose Sodium CMC Qhiloe
Carboxymethylcellulose sodium CMC, joalo ka lipolima tse ling tse qhibilihang ka metsing, e bonts'a ho ruruha pele e qhibiliha.Ha palo e kholo ea carboxymethylcellulose sodium CMC tharollo e hloka ho lokisoa, haeba karolo e 'ngoe le e' ngoe e ruruha ka mokhoa o ts'oanang, joale Sehlahisoa se qhibiliha ka potlako.Haeba sampuli e lahleloa ka metsing ka potlako 'me e khomarela thibela, "leihlo la tlhapi" le tla thehoa.Se latelang se hlalosa mokhoa oa ho qhaqha CMC ka potlako: butle-butle kenya CMC metsing tlas'a ho sisinyeha ho itekanetseng;CMC e qhalakantsoeng pele ka mokelikeli o qhibilihang ka metsi (joaloka ethanol, glycerin), ebe butle-butle o eketsa metsi tlas'a ho sisinyeha ho itekanetseng;Haeba li-additives tse ling tse nang le phofshoana li hloka ho kenngoa ka tharollo, qala ka ho kopanya li-additives le phofo ea CMC, ebe u eketsa metsi ho qhibiliha;bakeng sa boiketlo ba basebelisi, lihlahisoa tsa hang-hang tsa granule le phofo lia qalisoa.
3. Rheology ea Sodium Carboxymethyl Cellulose CMC Tharollo
Sodium carboxymethyl cellulose CMC tharollo ke mokelikeli oo e seng oa Newtonian, o bontšang viscosity e tlaase ka lebelo le phahameng, ke hore, hobane boleng ba viscosity ba sodium carboxymethyl cellulose CMC bo itšetlehile ka maemo a tekanyo, kahoo "viscosity e bonahalang" e sebelisoa ho hlalosa eona. tlhaho.
E bonts'itsoeng setšoantšong sa rheological curve: Sebopeho sa maro a sa Newtonian ke hore kamano pakeng tsa sekhahla sa ho kuta (lebelo la ho potoloha ho viscometer) le matla a ho kuta (torque ea viscometer) ha se kamano ea linear, empa ke mokoloko.
Tharollo ea Carboxymethyl cellulose sodium CMC ke mokelikeli oa pseudoplastic.Ha u lekanya viscosity, lebelo la ho potoloha le potlakile, ho fokotseha ha viscosity e lekantsoeng, e leng seo ho thoeng ke phello e fokolang ea ho kuta.
4. Carboxymethyl Cellulose Sodium CMC Viscosity
1) Viscosity le tekanyo ea karolelano ea polymerization
Viscosity ea sodium carboxymethylcellulose CMC tharollo haholo-holo e itšetlehile ka tekanyo e tloaelehileng ea polymerization ea liketane tsa cellulose tse etsang moralo.Ho na le kamano e batlang e lekana lipakeng tsa viscosity le tekanyo e tloaelehileng ea polymerization.
2) Viscosity le mahloriso
Kamano pakeng tsa viscosity le mahloriso a mefuta e meng ea sodium carboxymethylcellulose CMC.Viscosity le mahloriso li batla li le logarithmic.Sodium carboxymethyl cellulose CMC tharollo e ka hlahisa viscosity e phahameng haholo maemong a tlase, tšobotsi ena e etsa hore CMC e ka sebelisoa e le motenya o motle haholo ts'ebelisong.
3) Viscosity le mocheso
The viscosity ea carboxymethylcellulose sodium CMC aqueous solution e fokotseha ka ho eketseha ha mocheso, ho sa tsotelehe mofuta le mahloriso, mokhoa oa viscosity ea tharollo le mocheso oa kamano ea mocheso o tšoana hantle.
4) Viscosity le pH
Ha pH e le 7-9, viscosity ea tharollo ea CMC e fihla holimo 'me e tsitsitse haholo.Viscosity ea sodium carboxymethylpyramid e ke ke ea fetoha haholo ka har'a pH ea 5-10.CMC e qhibiliha ka potlako maemong a alkaline ho feta maemong a sa nke lehlakore.Ha pH> 10, e tla etsa hore CMC e fokotsehe le ho fokotsa viscosity.Ha acid e kenngoa ho tharollo ea CMC, botsitso ba tharollo bo fokotsehile hobane H + ka tharollo e nkela Na + sebaka sa ketane ea molek'hule.Ka tharollo e matla ea asiti (pH = 3.0-4.0) semi-sol e qala ho theha, e fokotsang viscosity ea tharollo.Ha pH <3.0, CMC e qala ho sa qhibilihe ka ho feletseng metsing ebe e etsa CMC acid.
CMC e nang le tekanyo e phahameng ea ho fetola e matla ka ho hanyetsa acid le alkali ho feta CMC e nang le DS e tlaase;CMC e nang le viscosity e tlase e matla ka ho hanyetsa asiti le alkali ho feta CMC e nang le viscosity e phahameng.
Nako ea poso: Jan-28-2023