Methylcellulose (MC) yog cov tshuaj hloov kho cellulose, ib qho dej-soluble polymer tau los ntawm ib feem methylation ntawm cellulose. Vim nws cov khoom tshwj xeeb physicochemical thiab biocompatibility, methylcellulose yog siv dav hauv cov khoom noj, tshuaj, khoom siv hauv tsev, tshuaj pleev ib ce thiab lwm yam.
1. Dej solubility thiab gel-forming muaj peev xwm
Methylcellulose muaj dej solubility zoo thiab tuaj yeem tsim cov pob tshab colloidal hauv dej txias. Thaum qhov kub thiab txias, qhov kev daws teeb meem no yuav raug thermal gelation los ua ib qho gel ruaj khov. Cov cuab yeej no ua rau methylcellulose dav siv hauv ice cream, qab zib, jelly thiab lwm yam khoom raws li cov thickener, stabilizer thiab emulsifier hauv kev lag luam khoom noj. Tsis tas li ntawd, hauv kev npaj tshuaj, nws tuaj yeem siv los tswj kev tso tawm ntawm cov tshuaj thiab txhim kho lub cev lub cev ntawm cov ntsiav tshuaj.
2. Kev tswj viscosity
Lub viscosity ntawm cov tshuaj methylcellulose tuaj yeem hloov kho los ntawm kev kho nws cov concentration, molecular hnyav thiab kub. Cov cuab yeej no ua rau methylcellulose zoo tagnrho cov thickener thiab nplaum, dav siv hauv kev tsim cov khoom siv hauv tsev xws li cov cement thiab gypsum los ua kom nws cov kev tsim kho thiab ua haujlwm ntev. Nyob rau tib lub sijhawm, nws tseem tuaj yeem siv los ua tus neeg sawv cev tswj hwm rheology rau luam ntawv inks thiab txheej txheej los txhim kho cov txheej txheem kev ua tau zoo thiab ruaj khov ntawm cov khoom.
3. Cov cuab yeej ua yeeb yaj kiab
Methylcellulose muaj peev xwm tsim tau cov yeeb yaj kiab zoo heev thiab tuaj yeem tsim cov yeeb yaj kiab tsis zoo, pob tshab nrog qee lub zog txhua yam. Cov yeeb yaj kiab no muaj cov huab cua zoo permeability thiab khaws cia noo noo, thiab yog siv dav hauv cov khoom noj khoom haus cling zaj duab xis, cov khoom siv tshuaj, thiab daim npog ntsej muag substrates hauv tshuaj pleev ib ce. Nws cov yeeb yaj kiab tsim cov khoom tsis yog tsuas yog tiv thaiv cov khoom los ntawm kev sib kis sab nraud, tab sis kuj tseem tswj tau qhov sib pauv ntawm cov dej noo thiab roj.
4. Biocompatibility thiab kev nyab xeeb
Raws li kev hloov kho cellulose los ntawm tej yam ntuj tso, methylcellulose muaj biocompatibility zoo thiab kev nyab xeeb, thiab feem ntau tsis ua rau muaj kev tsis haum tshuaj los yog tshuaj lom. Yog li ntawd, nyob rau hauv kev npaj tshuaj, methylcellulose yog dav siv nyob rau hauv zus tau tej cov ntsiav tshuaj, capsules thiab ophthalmic tshuaj los xyuas kom meej kev ruaj ntseg thiab zoo ntawm cov tshuaj. Hauv kev lag luam khoom noj khoom haus, methylcellulose, raws li cov khoom noj khoom haus ntxiv, tau lees paub tias yog cov khoom muaj kev nyab xeeb los ntawm cov koom haum saib xyuas zaub mov hauv ntau lub teb chaws thiab feem ntau siv rau hauv cov zaub mov noj qab haus huv xws li cov zaub mov tsis muaj calorie thiab cov zaub mov tsis muaj gluten.
5. Stability thiab tshuaj inertness
Methylcellulose muaj cov tshuaj lom neeg ruaj khov thiab tuaj yeem tswj hwm nws cov khoom ua haujlwm nyob rau hauv ob qho tib si acidic thiab alkaline ib puag ncig. Qhov no tso cai rau nws nyob twj ywm zoo nyob rau hauv ntau yam huab cua thiab yog dav siv nyob rau hauv industrial ntau lawm. Tsis tas li ntawd, cov tshuaj inertness ntawm methylcellulose ua rau nws tsis tshua muaj kev cuam tshuam nrog lwm cov khoom xyaw, thiab nws tuaj yeem siv los ua cov khoom siv los yog stabilizer hauv cov ntaub ntawv sib xyaw kom ntev lub txee lub neej ntawm cov khoom thiab txhim kho cov khoom lag luam.
6. Kev nqus dej thiab moisturizing zog
Methylcellulose muaj dej nqus dej zoo thiab moisturizing zog, thiab tuaj yeem nqus tau ob peb zaug nws qhov hnyav ntawm dej. Yog li ntawd, hauv kev lag luam khoom noj khoom haus, methylcellulose yog siv los ua moisturizer kom cov zaub mov mos thiab tshiab. Hauv cov khoom siv tu tus kheej, methylcellulose yog siv rau hauv daim tawv nqaij cream, tshuaj zawv plaub hau thiab lwm yam khoom siv los pab cov tawv nqaij thiab plaub hau khaws cov dej noo thiab muab cov nyhuv moisturizing.
7. Thickening thiab suspension stability
Methylcellulose tuaj yeem ua rau muaj qhov viscosity ntawm cov tshuaj, kom cov khoom sib npaug sib npaug hauv cov kua los tiv thaiv nag lossis daus thiab stratification. Qhov no feature ua rau nws muaj nuj nqis daim ntawv thov nyob rau hauv kev npaj cov khoom xws li kua txiv, condiments, thiab tshuaj ncua kev kawm ntawv. Tib lub sijhawm, nws tseem tuaj yeem txhim kho qhov saj ntawm cov khoom noj ua kua thiab txhim kho cov neeg siv khoom saj kev paub.
8. Thermal stability thiab kub tsis kam
Methylcellulose muaj kev ruaj ntseg zoo ntawm qhov kub thiab txias thiab tuaj yeem tswj nws cov khoom ua haujlwm thaum ci thiab cua sov. Yog li ntawd, nws yog dav siv nyob rau hauv zus tau tej cov khoom ci thiab npaj-rau-noj zaub mov raws li ib tug thickener thiab moisturizer los xyuas kom meej qhov zoo thiab saj ntawm zaub mov thaum lub sij hawm ua.
9. Eco-phooj ywg
Methylcellulose, raws li cov khoom siv biodegradable, tsis muaj teeb meem rau ib puag ncig thiab ua tau raws li niaj hnub kev tiv thaiv ib puag ncig. Nws tuaj yeem degraded los ntawm microorganisms nyob rau hauv ib puag ncig ntuj, txo cov kev cuam tshuam ntawm ecosystem. Yog li ntawd, methylcellulose raug suav hais tias yog cov khoom siv ntsuab thiab ib puag ncig zoo, tshwj xeeb tshaj yog nyob rau hauv cov khoom siv hauv tsev thiab ntim khoom, qhov twg nws daim ntawv thov muaj qhov tseem ceeb ntawm ib puag ncig.
10. Tshuaj tswj kev tso tawm kev ua haujlwm
Methylcellulose muaj qhov tseem ceeb tswj kev tso tawm hauv kev npaj tshuaj. Vim tias nws tuaj yeem tsim cov viscous gel hauv lub plab zom mov, nws tuaj yeem maj mam tso cov tshuaj, ua kom lub sijhawm ntev ntawm cov tshuaj ua haujlwm, thiab txhim kho kev ua haujlwm ntawm cov tshuaj. Methylcellulose feem ntau yog siv los npaj cov ntsiav tshuaj tso tawm thiab cov txheej txheem microcapsule txhawm rau txhim kho qhov tso tawm nkhaus ntawm cov tshuaj, txo qhov zaus ntawm cov tshuaj, thiab txhim kho cov neeg mob cov tshuaj noj.
Vim nws cov khoom siv tshwj xeeb, methylcellulose tau siv dav hauv ntau yam. Nws tsis yog tsuas yog ib qho tseem ceeb ua haujlwm additive nyob rau hauv cov zaub mov thiab tshuaj industries, tab sis kuj plays lub luag hauj lwm tseem ceeb nyob rau hauv industrial teb xws li kev tsim kho thiab tshuaj pleev ib ce. Nrog rau kev nce qib ntawm kev siv thev naus laus zis thiab kev nthuav dav ntawm kev siv, cov khoom ua haujlwm ntawm methylcellulose yuav txuas ntxiv mus kawm tob thiab tsim los muab cov kev daws teeb meem tshiab rau ntau yam kev lag luam.
Post lub sij hawm: Aug-22-2024