Dab tsi yog Kev Sib Raug Zoo ntawm Kev Tiv Thaiv Dej ntawm HPMC thiab Kub?

Hydroxypropyl methylcellulose (HPMC) yog ib qho khoom siv feem ntau siv hauv cov khoom siv, xws li cov tshuaj khib nyiab qhuav, vim nws cov khoom tuav dej. Kev tuav dej yog ib qho cuab yeej tseem ceeb ntawm HPMC, vim nws cuam tshuam rau qhov sib xws, kev ua haujlwm, thiab kev kho ntawm cov tshuaj khib. Kev sib raug zoo ntawm kev tuav dej ntawm HPMC thiab qhov kub thiab txias yog qhov nyuaj thiab nyob ntawm ntau yam.

Feem ntau hais lus, cov dej tuav ntawm HPMC txo qis thaum qhov kub nce. Qhov no yog vim hais tias thaum kub nce, tus nqi ntawm evaporation ntawm cov dej los ntawm mortar kuj nce. HPMC pab ua kom cov txheej txheem no qeeb los ntawm kev tsim ib qho kev thaiv ntawm qhov chaw ntawm lub mortar, tiv thaiv cov dej los ntawm evaporating sai heev. Txawm li cas los xij, ntawm qhov kub siab dua, qhov kev thaiv no yuav tsis zoo txaus los khaws cov dej hauv cov mortar, ua rau txo qis hauv dej.

Nws yuav tsum tau muab sau tseg tias kev sib raug zoo ntawm HPMC dej tuav thiab kub tsis yog linear. Ntawm qhov kub thiab txias, HPMC muaj peev xwm tuav tau dej siab, vim tias qhov qeeb qeeb ntawm cov evaporation tso cai rau HPMC los ua ib qho kev thaiv muaj zog. Raws li qhov kub thiab txias, cov dej khaws cia ntawm HPMC txo qis kom txog thaum nws nce mus txog qhov ntsuas kub, hu ua qhov ntsuas kub tseem ceeb. Tshaj qhov ntsuas kub no, cov dej tuav ntawm HPMC tseem nyob tas li.

Qhov ntsuas kub tseem ceeb ntawm HPMC nyob ntawm ntau yam, suav nrog hom thiab qhov siab ntawm HPMC siv, nrog rau qhov muaj pes tsawg leeg thiab qhov kub ntawm cov tshuaj khib. Feem ntau, qhov kub tseem ceeb ntawm HPMC yog li ntawm 30 ° C txog 50 ° C.

Ntxiv rau qhov kub thiab txias, lwm yam tseem tuaj yeem cuam tshuam cov dej tuav ntawm HPMC hauv cov tshuaj khib nyiab qhuav. Cov no muaj xws li hom thiab concentration ntawm lwm yam additives nyob rau hauv lub mortar, lub mixing txheej txheem, thiab ambient humidity. Nws yog ib qho tseem ceeb uas yuav tau xav txog tag nrho cov xwm txheej no thaum tsim cov tshuaj khib nyiab qhuav kom ntseeg tau tias dej tuav tau zoo thiab ua haujlwm tau zoo.

Hauv cov ntsiab lus, kev sib raug zoo ntawm cov dej tuav ntawm HPMC thiab qhov kub thiab txias yog qhov nyuaj thiab nyob ntawm ntau yam. Feem ntau, cov dej tuav ntawm HPMC txo qis thaum qhov kub thiab txias nce, tab sis qhov kev sib raug zoo no tsis yog kab thiab nyob ntawm qhov kub thiab txias ntawm HPMC. Lwm yam, xws li hom thiab concentration ntawm additives, kuj ua lub luag haujlwm hauv kev txiav txim siab cov dej tuav ntawm HPMC hauv cov tshuaj khib nyiab qhuav.