Methylcellulose yog ib qho cellulose derivative feem ntau siv los ua zaub mov ntxiv, thickener thiab emulsifier. Ntawm nws cov khoom, nws lub peev xwm khaws dej tau dhau los ua qhov tseem ceeb, vim nws feem ntau siv rau hauv kev tsim khoom ntawm ntau yam khoom noj. Cov cuab yeej no cuam tshuam los ntawm ntau yam uas tuaj yeem cuam tshuam rau nws txoj haujlwm.
Tus nqi ntxiv
Thawj yam uas cuam tshuam rau cov dej tuav ntawm methylcellulose yog tus nqi nws ntxiv rau qhov sib tov. Ntxiv ntau methylcellulose rau cov khoom noj ua rau lawv muaj peev xwm khaws dej. Qhov no txhais tau hais tias raws li qhov concentration ntawm methylcellulose hauv cov khoom noj nce, nws tuaj yeem tuav dej ntau, ua rau muaj viscosity ntau dua. Viscosity nyob rau hauv lem cuam tshuam qhov kev ntxhib los mos ntawm cov khoom. Yog li ntawd, thaum siv methylcellulose, cov nyiaj ntxiv yuav tsum tau ua tib zoo tswj kom ntseeg tau tias qhov xav tau viscosity thiab dej tuav cov khoom tiav.
viscosity
Viscosity yog lwm yam uas cuam tshuam cov dej tuav ntawm methylcellulose. Lub viscosity ntawm methylcellulose cuam tshuam los ntawm qib ntawm polymerization, degree ntawm kev hloov thiab concentration. Methyl cellulose feem ntau muab faib ua qib qis viscosity, qib nruab nrab viscosity qib thiab qib siab viscosity raws li nws cov viscosity. Los ntawm kev xaiv cov qib viscosity tsim nyog rau ib daim ntawv thov, cov dej tuav thiab kev ntxhib los mos ntawm cov khoom noj tuaj yeem tswj tau raws li. Feem ntau, high-viscosity methylcellulose tuaj yeem tuav dej ntau, uas tuaj yeem ua rau kom elasticity thiab cohesiveness ntawm cov khoom. Ntawm qhov tod tes, low-viscosity methylcellulose tuaj yeem txhim kho qhov ncauj thiab ua kom cov khoom nqos tau yooj yim dua.
particle loj
Lwm qhov tseem ceeb cuam tshuam rau kev tuav dej ntawm methylcellulose hauv cov zaub mov yog nws qhov loj me. Qhov loj me me ntawm methylcellulose cuam tshuam sai npaum li cas nws yaj mus rau hauv cov kua, uas ua rau nws muaj peev xwm tuav dej. Cov khoom me me me me yaj sai dua, ua rau kom muaj viscosity sai dua thiab khaws dej ntau dua. Ntawm qhov tod tes, qhov loj me me me me yaj maj mam, ua rau qeeb viscosity nce thiab txo cov dej tuav. Yog li ntawd, xaiv qhov loj me me yog qhov tseem ceeb los tswj cov dej noo thiab kev ntxhib los mos ntawm cov khoom noj.
tawg tus nqi
Cov dej tuav ntawm methylcellulose kuj cuam tshuam los ntawm nws tus nqi ntawm kev sib cais. Qhov kev sib cais ntawm methylcellulose yog qhov tseem ceeb vim tias nws cuam tshuam sai npaum li cas cov khoom khaws cia noo noo thiab nce viscosity. Tus nqi ntawm kev sib cais yog nyob ntawm ntau yam xws li kub, pH, dej zoo thiab lwm yam khoom xyaw uas muaj nyob rau hauv qhov sib tov. Nyob rau hauv cov xwm txheej zoo, methylcellulose dissolves sai thiab tsim ib lub zog gel network, uas ua rau nws muaj peev xwm tuav tau dej zoo. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua kom zoo tshaj qhov kev sib cais raws li kev thov tshwj xeeb.
Kev tuav dej ntawm methylcellulose yog cov cuab yeej tseem ceeb uas cuam tshuam rau kev ntxhib los mos thiab tag nrho cov khoom noj khoom haus zoo. Ntau yam xws li cov nyiaj ntxiv, viscosity, qhov loj me thiab qhov sib cais ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws cov dej tuav tau. Kev xaiv kom raug ntawm cov khoom no yuav pab tsim cov khoom noj khoom haus zoo nrog rau qhov xav tau kev ntxhib los mos, qhov ncauj qhov ntswg thiab lwm yam ntxwv. Methylcellulose tau dhau los ua qhov tseem ceeb hauv kev lag luam khoom noj vim nws txhim kho kev ntxhib los mos thiab zoo ntawm ntau yam khoom. Kev txhim kho tas mus li thiab kev siv tshuab methyl cellulose yuav txhawb kev txhim kho kev lag luam khoom noj.
Post lub sij hawm: Sep-08-2023