1. Kenyelletso e Khutšoanyane ea Carboxymethyl Cellulose
Lebitso la Senyesemane: Carboxyl methyl Cellulose
Kgutsufatso: CMC
Foromo ea molek'hule ea fetoha: [C6H7O2(OH)2CH2COONA]n
Ponahalo: phofo e tšoeu kapa e bobebe e mosehla oa fibrous granular.
Ho qhibiliha ha metsi: ho qhibiliha habonolo ka metsing, ho etsa "viscous colloid" e hlakileng, 'me tharollo ha e nke lehlakore kapa e na le alkaline hanyenyane.
Likarolo: Motsoako o phahameng oa limolek'hule oa colloid e sebetsang, e sa nkheng, e sa latsoeheng ebile e se chefo.
Selulose ea tlhaho e ajoa haholo tlhahong 'me ke polysaccharide e ngata ka ho fetisisa. Empa tlhahisong, cellulose hangata e ba teng ka sebopeho sa sodium carboxymethyl cellulose, kahoo lebitso le felletseng e lokela ho ba sodium carboxymethyl cellulose, kapa CMC-Na. E sebelisoa haholo indastering, kaho, meriana, lijo, masela, lirafshoa le masimo a mang.
2. Theknoloji ea carboxymethyl cellulose
Theknoloji ea phetoho ea cellulose e kenyelletsa: etherification le esterification.
Phetoho ea carboxymethyl cellulose: carboxymethylation reaction ho theknoloji ea etherification, cellulose ke carboxymethylated ho fumana carboxymethyl cellulose, e bitsoang CMC.
Mesebetsi ea carboxymethyl cellulose aqueous solution: thickening, ho etsa filimi, ho kopanya, ho boloka metsi, tšireletso ea colloid, emulsification le ho emisoa.
3. Karabelo ea lik'hemik'hale ea carboxymethyl cellulose
Karabelo ea alkalization ea cellulose:
[C6H7O2(OH) 3]n + nNaOH→[C6H7O2(OH) 2ONa ]n + nH2O
Karabelo ea etherification ea monochloroacetic acid ka mor'a alkali cellulose:
[C6H7O2(OH) 2ONa ]n + nClCH2COONA →[C6H7O2(OH) 2OCH2COONA ]n + nNaC
Ka hona: mokhoa oa lik'hemik'hale oa ho etsa carboxymethyl cellulose ke: Cell-O-CH2-COONA NaCMC.
Sodium carboxymethyl cellulose(NaCMC kapa CMC ka bokhutšoane) ke selulose ether e qhibilihang ka metsing e ka etsang hore viscosity ea metsoako ea tharollo ea metsi e sebelisoang hangata e fapane ho tloha ho cP tse seng kae ho isa ho tse likete tse 'maloa tsa cP.
4. Litšobotsi tsa sehlahisoa sa carboxymethyl cellulose
1. Ho boloka tharollo ea metsi a CMC: E tsitsitse tlas'a mocheso o tlaase kapa mahlaseli a letsatsi, empa acidity le alkalinity ea tharollo e tla fetoha ka lebaka la liphetoho tsa mocheso. Tlas'a tšusumetso ea mahlaseli a ultraviolet kapa likokoana-hloko, viscosity ea tharollo e tla fokotseha kapa e senyehe. Haeba ho hlokahala hore ho bolokoe nako e telele, ho lokela ho eketsoa sebatli se loketseng.
2. Mokhoa oa ho itokisa oa tharollo ea metsi a CMC: etsa hore likaroloana li be metsi ka mokhoa o ts'oanang pele, tse ka eketsang haholo tekanyo ea ho qhibiliha.
3. CMC ke hygroscopic 'me e lokela ho sireletsoa mongobo nakong ea polokelo.
4. Matsoai a tšepe a boima a kang zinki, koporo, loto, aluminiamo, silevera, tšepe, thini le chromium a ka etsa hore CMC e theohe.
5. Pula e hlaha ka tharollo ea metsi e ka tlase ho PH2.5, e ka fumanoang ka mor'a ho se nke lehlakore ka ho eketsa alkali.
6. Le hoja letsoai le kang k'halsiamo, magnesium le letsoai la tafole li se na phello ea pula ho CMC, li tla fokotsa viscosity ea tharollo.
7. CMC e lumellana le li-glues tse ling tse qhibilihang ka metsing, li-softeners le li-resin.
8. Ka lebaka la ts'ebetso e fapaneng, ponahalo ea CMC e ka ba phofo e ntle, lijo-thollo tse mahoashe kapa li-fibrous, tse sa amane le thepa ea 'mele le ea lik'hemik'hale.
9. Mokhoa oa ho sebelisa phofo ea CMC o bonolo. E ka kenngoa ka ho toba 'me ea qhibiliha metsing a batang kapa metsi a futhumetseng ka 40-50 ° C.
5. Tekanyo ea ho fetola le ho qhibiliha ha carboxymethyl cellulose
Tekanyo ea ho nka sebaka e bolela palo e tloaelehileng ea lihlopha tsa sodium carboxymethyl tse hokeletsoeng yuniti e 'ngoe le e 'ngoe ea selulose; boleng bo phahameng ba tekanyo ea ho kenya sebaka ke 3, empa e sebetsang ka ho fetisisa indastering ke NaCMC e nang le tekanyo ea ho fetola e fapaneng ho tloha ho 0.5 ho ea ho 1.2. Thepa ea NaCMC e nang le tekanyo ea ho fetola 0.2-0.3 e fapane haholo le ea NaCMC ka tekanyo ea ho fetola 0.7-0.8. Ea pele e qhibiliha hanyenyane feela metsing a pH 7, empa ea morao e qhibiliha ka ho feletseng. Se fapaneng ke 'nete tlas'a maemo a alkaline.
6. Tekanyo ea polymerization le viscosity ea carboxymethyl cellulose
Polymerization degree: e bua ka bolelele ba ketane ea cellulose, e khethollang viscosity. Ha ketane ea cellulose e telele, ho na le viscosity e kholoanyane, 'me ho joalo le ka tharollo ea NaCMC.
Viscosity: Tharollo ea NaCMC ke mokelikeli o seng oa Newtonian, 'me viscosity ea eona e bonahalang e fokotseha ha matla a ho kuta a eketseha. Ka mor'a ho emisa ho sisinyeha, viscosity e ile ea eketseha ka tsela e lekanang ho fihlela e lula e tsitsitse. Ke hore, tharollo ke thixotropic.
7. Lethathamo la tšebeliso ea carboxymethyl cellulose
1. Kaho le indasteri ea ceramic
(1) Liaparo tsa meralo: ho hasana hantle, kabo ea seaparo se tšoanang; ha ho layering, botsitso bo botle; phello e ntle ea thickening, viscosity ea ho roala e feto-fetohang.
(2) Indasteri ea ceramic: e sebelisoang e le setlamo se se nang letho ho ntlafatsa polasetiki ea letsopa la letsopa; glaze e tšoarellang.
2. Liindasteri tsa ho hlatsoa, litlolo, koae, ho hatisa masela le ho daea
(1) Ho hlatsoa: CMC e eketsoa ho sesepa ho thibela litšila tse hlatsoitsoeng hore li se ke tsa beha hape holim'a lesela.
(2) Litlolo: ho teteaneng, ho qhalakanya, ho emisa, ho tsitsisa, joalo-joalo Ho molemo ho fana ka papali e feletseng ho thepa e sa tšoaneng ea litlolo.
(3) Koae: CMC e sebelisetsoa ho kopanya lipampiri tsa koae, tse ka sebelisang lichipisi ka katleho le ho fokotsa bongata ba makhasi a tala a koae.
(4) Textile: Joaloka moemeli oa ho qetela bakeng sa masela, CMC e ka fokotsa ho tlōla ha khoele le ho felisa ho robeha ka looms ea lebelo le phahameng.
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3. Indasteri ea li-coil le li-welding rod
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(2) Electrode: CMC e sebelisoa e le sesebelisoa sa glaze ho etsa hore seaparo sa ceramic se tlamahane hantle le ho thehoa, se nang le ts'ebetso e ntle ea borashe, hape se na le ts'ebetso ea ho khathala ha mocheso o phahameng.
4. Indasteri ea sesepa sa meno
(1) CMC e lumellana hantle le lisebelisoa tse sa tšoaneng tse tala ka sesepa sa meno;
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(3) Botsitso bo botle le botsitso bo loketseng, bo ka fanang ka sesepa sa meno sebopeho se setle, ho boloka le tatso e monate haholo;
(4) E hanana le ho fetoha ha mocheso, ho nosetsa le ho lokisa monko o monate.
(5) Ho kuta ho honyenyane le mohatla ka makotikoti.
5. Indasteri ea lijo
(1) Lino tse nang le asiti: Joaloka stabilizer, ka mohlala, ho thibela pula le stratification ea liprotheine ka yogurt ka lebaka la aggregation; tatso e ntle ka mor'a ho qhibiliha ka metsing; phetoho e ntle e ts'oanang.
(2) Ice cream: Etsa hore metsi, mafura, protheine, joalo-joalo e be motsoako oa junifomo, o qhalakaneng le o tsitsitseng ho qoba likristale tsa leqhoa.
(3) Bohobe le pastry: CMC e ka laola viscosity ea batter, ea ntlafatsa ho boloka mongobo le bophelo ba sethala sa sehlahisoa.
(4) Li-noodle tsa hang-hang: eketsa ho tiea le ho hanyetsa ho pheha ha li-noodle; e na le sebopeho se setle ka li-biscuits le li-pancake, 'me bokaholimo ba kaka bo boreleli ebile ha bo bonolo ho robeha.
(5) Ho peitsa hanghang: joalo ka bokae ba marinini.
(6) CMC ha e sebetse hantle 'me ha e na boleng ba calorific. Ka hona, lijo tse nang le lik'halori tse tlaase li ka hlahisoa.
6. Indasteri ea pampiri
CMC e sebelisoa bakeng sa boholo ba pampiri, e leng se etsang hore pampiri e be le sesupo se phahameng, ho hanyetsa enke e ntle ea ho kenella, pokello e phahameng ea boka le boreleli. Ts'ebetsong ea 'mala oa pampiri, e thusa ho laola ho phutholoha ha pente ea mebala; e ka ntlafatsa boemo ba ho khomarela pakeng tsa likhoele ka hare ho pampiri, ka tsela eo e ntlafatsa matla le ho phutha ho hanyetsa ha pampiri.
7. Indasteri ea peterole
CMC e sebelisoa ho cheka oli le khase, ho cheka seliba le merero e meng.
8. Tse ling
Likhomaretsi tsa lieta, likatiba, lipensela, joalo-joalo, lipolishe le mebala ea letlalo, li-stabilizer bakeng sa litima-mollo tsa foam, joalo-joalo.
Nako ea poso: Jan-04-2023