Carboxymethyl cellulose (CMC) ke polymer e feto-fetohang e sebelisoang hangata liindastering tse fapaneng joalo ka lijo, meriana, litlolo le masela. E tsebahala ka bokhoni ba eona ba ho sebetsa joalo ka ntho e teteaneng, stabilizer, binder, le e bolokang metsi. Ha e kopane hantle le metsi, CMC e etsa tharollo ea viscous e nang le thepa e ikhethang ea rheological.
Ho utloisisa CMC:
Sebopeho sa lik'hemik'hale le thepa ea CMC.
Lisebelisoa tsa indasteri le bohlokoa mafapheng a fapaneng.
Bohlokoa ba ho kopanya hantle bakeng sa ho fihlela tshebetso e lakatsehang.
Khetho ea Kereiti ea CMC:
Limaraka tse fapaneng tsa CMC li fumaneha ho ipapisitse le viscosity, boemo ba ho kenya sebaka, le bohloeki.
Ho khetha kereiti e nepahetseng ho latela ts'ebeliso e reriloeng le litšobotsi tse lakatsehang tsa tharollo.
Litlhokomelo bakeng sa ho lumellana le metsoako e meng ea tlhahiso.
Thepa le Lisebelisoa:
Lijana tse hloekileng le tse hloekisitsoeng bakeng sa ho kopanya.
Lisebelisoa tse hlohlelletsang tse kang li-stirrers tsa mochini, li-mixer, kapa lithupa tse hlohlelletsang ka letsoho.
Li-cylinders tse abetsoeng mangolo kapa likopi tsa ho metha bakeng sa tekanyo e nepahetseng ea CMC le metsi.
Mekhoa ea ho Kopanya:
a. Cold Mixing:
Ho eketsa CMC butle metsing a batang ka ho sisinyeha khafetsa ho thibela ho putlama.
Butle-butle eketsa lebelo la pherekano ho etsa bonnete ba ho hasana ho tšoanang.
Ho lumella nako e lekaneng bakeng sa hydration le ho qhibiliha ha likaroloana tsa CMC.
b. Ho kopanya ho chesang:
Ho futhumatsa metsi ho mocheso o loketseng (hangata pakeng tsa 50-80 ° C) pele o eketsa CMC.
Ho fafatsa CMC butle-butle ka metsing a futhumetseng ha u ntse u susumetsa kamehla.
Ho boloka mocheso ka har'a mefuta e khothalletsoang ho thusa ho tsamaisa metsi ka potlako le ho hasana ha CMC.
c. Motsoako oa High-Shear:
Ho sebelisa li-mixer tsa mochini tse lebelo le holimo kapa li-homogenizer ho fihlela phallo e ntle le ho phalla ka potlako.
Ho netefatsa phetoho e nepahetseng ea li-setting tsa mixer ho thibela ho hlahisa mocheso o feteletseng.
Ho beha leihlo viscosity le ho lokisa liparamente tsa ho kopanya ha ho hlokahala ho fihlela tumellano e lakatsehang.
d. Ultrasonic Mixing:
Ho sebelisa lisebelisoa tsa ultrasonic ho etsa cavitation le micro-turbulence ka tharollo, ho thusa ho hasana ka potlako ha likaroloana tsa CMC.
Ho ntlafatsa litlhophiso tsa maqhubu le matla ho ipapisitsoe le litlhoko tse ikhethileng tsa sebopeho.
Ho sebelisa motsoako oa ultrasonic e le mokhoa oa tlatsetso oa ho ntlafatsa ho hasana le ho fokotsa nako ea ho kopanya.
Lintlha tsa Boleng ba Metsi:
Ho sebelisa metsi a hloekisitsoeng kapa a hloekisitsoeng ho fokotsa litšila le litšila tse ka amang ts'ebetso ea CMC.
Ho beha leihlo mocheso oa metsi le pH ho netefatsa ho lumellana le CMC le ho thibela maikutlo a mabe kapa ho senyeha.
Hydration le Dissolution:
Ho utloisisa hydration kinetics ea CMC le ho lumella nako e lekaneng bakeng sa hydration e felletseng.
Tlhokomelo ea viscosity e fetoha ha nako e ntse e feta ho lekola tsoelo-pele ea ho felisoa.
Ho fetola mekhahlelo ea ho kopanya kapa ho eketsa metsi a eketsehileng ha ho hlokahala ho finyella viscosity e lakatsehang le botsitso.
Taolo ea Boleng le Teko:
Ho etsa litekanyo tsa viscosity ho sebelisa viscometers kapa rheometers ho lekola boleng ba tharollo ea CMC.
Ho etsa tlhahlobo ea boholo ba likaroloana ho etsa bonnete ba ho hasana ho tšoanang le ho ba sieo ha li-agglomerate.
Ho etsa liteko tsa botsitso ho lekola sethala sa bophelo le ts'ebetso ea tharollo ea CMC tlasa maemo a fapaneng a polokelo.
Ts'ebeliso ea Metsoako ea Metsi ea CMC:
Indasteri ea Lijo: Ho tiisa le ho tsitsisa li-sauces, liaparo le lihlahisoa tsa lebese.
Indasteri ea Meriana: Ho theha li-suspensions, li-emulsion, le tharollo ea mahlo.
Indasteri ea Litlolo: Ho kenyeletsoa ka har'a litlolo, litlolo, le lihlahisoa tsa tlhokomelo ea motho bakeng sa taolo ea viscosity le emulsion stabilization.
Indasteri ea Masela: Ho ntlafatsa ponahalo ea li-pastes tsa khatiso le libopeho tsa boholo.
Ho kopanya CMC metsing ke ts'ebetso ea bohlokoa e hlokang ho shebisisoa ka hloko lintlha tse fapaneng joalo ka khetho ea sehlopha, mekhoa ea ho kopanya, boleng ba metsi le mehato ea taolo ea boleng. Ka ho latela litataiso tse boletsoeng tataisong ena e felletseng, bahlahisi ba ka etsa bonnete ba hore CMC e sebetsa hantle ebile e sebetsa hantle, e lebisang ho thehoeng ha litharollo tsa boleng bo holimo tse nang le ts'ebetso e ts'oanang ho likopo tse fapaneng.
Nako ea poso: Mar-21-2024