Carboxymethyl cellulose (CMC) yog ntau yam polymer uas siv ntau yam lag luam xws li zaub mov, tshuaj, tshuaj pleev ib ce, thiab textiles. Nws paub txog nws lub peev xwm los ua tus neeg sawv cev thickening, stabilizer, binder, thiab dej tuav tus neeg sawv cev. Thaum sib tov zoo nrog dej, CMC tsim cov kua nplaum uas muaj cov khoom rheological tshwj xeeb.
Nkag siab CMC:
Cov qauv tshuaj thiab cov khoom ntawm CMC.
Cov ntawv thov kev lag luam thiab qhov tseem ceeb hauv ntau lub sectors.
Qhov tseem ceeb ntawm kev sib xyaw kom haum rau kev ua tiav qhov kev xav tau.
Xaiv CMC Qib:
Cov qib sib txawv ntawm CMC muaj nyob ntawm viscosity, qib kev hloov pauv, thiab purity.
Xaiv cov qib tsim nyog raws li daim ntawv thov thiab cov yam ntxwv xav tau ntawm kev daws teeb meem.
Kev txiav txim siab rau kev sib raug zoo nrog lwm cov khoom xyaw hauv kev tsim.
Khoom siv thiab cuab yeej:
Ntxuav thiab sanitized ntim rau kev sib tov.
Cov khoom siv stirring xws li mechanical stirrers, mixers, los yog handheld stirring rods.
Kawm tiav lub tog raj kheej lossis ntsuas khob kom raug ntsuas CMC thiab dej.
Kev sib xyaw ua ke:
ib. Txias Mixing:
Ntxiv CMC maj mam rau cov dej txias nrog kev nplawm tas li los tiv thaiv clumping.
Maj mam nce agitation ceev kom ntseeg tau tias zoo dispersion.
Cia lub sij hawm txaus rau hydration thiab dissolution ntawm CMC hais.
b. Kub Mixing:
Cov dej kub rau qhov ntsuas kub (feem ntau ntawm 50-80 ° C) ua ntej ntxiv CMC.
Maj mam nchuav CMC rau hauv dej kub thaum nplawm tas li.
Tuav qhov kub thiab txias nyob rau hauv qhov kev pom zoo los pab kom ceev hydration thiab dispersion ntawm CMC.
c. High-Shear Mixing:
Siv cov khoom siv hluav taws xob ceev ceev lossis homogenizers kom ua tiav cov khoom tawg yooj yim thiab ua kom dej sai dua.
Ua kom muaj kev hloov kho kom zoo ntawm cov khoom sib tov kom tsis txhob muaj cua sov ntau dhau.
Saib xyuas viscosity thiab kho qhov sib xyaw ua ke raws li xav tau kom ua tiav qhov xav tau sib xws.
d. Ultrasonic Mixing:
Siv cov khoom siv ultrasonic los tsim cavitation thiab micro-turbulence hauv kev daws teeb meem, ua kom yooj yim dispersion ntawm CMC hais.
Optimizing zaus thiab lub zog teeb tsa raws li cov kev cai tshwj xeeb ntawm kev tsim.
Siv ultrasonic sib xyaw ua cov txheej txheem ntxiv txhawm rau txhim kho kev tawg thiab txo lub sijhawm sib xyaw.
Kev txiav txim siab rau dej zoo:
Siv cov dej huv lossis cov dej distilled kom txo cov impurities thiab cov kab mob uas yuav cuam tshuam rau kev ua haujlwm ntawm CMC.
Saib xyuas cov dej kub thiab pH kom ntseeg tau tias muaj kev sib raug zoo nrog CMC thiab tiv thaiv kev tsis zoo los yog kev puas tsuaj.
Hydration thiab Dissolution:
Nkag siab txog hydration kinetics ntawm CMC thiab tso cai rau lub sijhawm txaus rau kev ua kom dej tiav.
Kev soj ntsuam viscosity hloov lub sij hawm los ntsuam xyuas qhov kev ua tiav ntawm kev sib cais.
Kho qhov sib xyaw ua ke lossis ntxiv dej ntxiv raws li xav tau kom ua tiav qhov xav tau viscosity thiab sib xws.
Kev Tswj Xyuas Zoo thiab Kev Xeem:
Kev ntsuas viscosity siv viscometers lossis rheometers los ntsuas qhov zoo ntawm cov tshuaj CMC.
Ua qhov ntsuas particle loj kom ntseeg tau tias tsis muaj kev sib cais thiab tsis muaj agglomerates.
Kev ntsuas kev ruaj ntseg los ntsuas lub txee lub neej thiab kev ua haujlwm ntawm CMC kev daws teeb meem nyob rau hauv ntau yam kev cia khoom.
Kev siv ntawm CMC-Dej Mixtures:
Kev lag luam khoom noj khoom haus: Thickening thiab stabilizing sauces, hnav khaub ncaws, thiab cov khoom siv mis nyuj.
Pharmaceutical Industry: Formulating suspensions, emulsions, thiab ophthalmic daws.
Kev lag luam tshuaj pleev ib ce: Incorporating rau hauv cream, tshuaj pleev ib ce, thiab cov khoom tu tus kheej rau viscosity tswj thiab emulsion stabilization.
Kev Lag Luam Textile: Txhim kho cov viscosity ntawm luam ntawv pastes thiab sizing formulations.
Kev sib xyaw CMC hauv dej yog cov txheej txheem tseem ceeb uas yuav tsum tau ua tib zoo xav txog ntau yam xws li kev xaiv qib, kev sib xyaw ua ke, dej zoo, thiab kev ntsuas ntsuas zoo. Los ntawm kev ua raws li cov lus qhia uas tau teev tseg hauv phau ntawv qhia no, cov tuam txhab lag luam tuaj yeem ua kom muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo ntawm CMC, ua rau kev tsim cov kev daws teeb meem zoo nrog kev ua tau zoo sib xws hauv ntau hom kev siv.
Post lub sij hawm: Mar-21-2024