HydroxyPropylenCellulose (HPMC) yog cov khoom siv dav siv hauv kev tsim kho kev lag luam vim nws cov khoom siv dej zoo. Nyob rau hauv kev tsim kho cov ntawv thov xws li Mas Qasas Plasters, Plasters thiab cov plua av nplaum yog qhov tseem ceeb rau kev ua haujlwm zoo thiab ua tau zoo.
Raws li ib qho ntawm cov khoom tseem ceeb tshaj plaws ntawm HPMC, dej ceev ceev yog ncaj qha cuam tshuam nrog viscosity ntawm cov khoom. Cov viscos ntau dua ntawm HPMC, qhov zoo dua nws lub peev xwm kav dej. Cov cuab yeej no ua rau HPMC cov kev xaiv zoo rau kev tsim kho thiab cov kws tshaj lij.
Dej khaws cia yog qhov tseem ceeb nyob rau hauv kev tsim kho raws li nws kom ntseeg tau tias cov ntaub ntawv siv khaws lawv li sib xws txawm tias qhuav thaum qhuav. Piv txwv li, hauv Maas yuav lossis plasters, dej rov qab tiv thaiv cov khoom los ntawm kev tawg, cov qauv kev cai. Ib yam li ntawd, nyob rau hauv cov pobzeb kho, kev ceev ceev ceev pab pab kom paub meej tias cov nplais nplaum nplaum tuav tau ruaj khov rau lub substrate. Tag nrho cov ntawv thov no cia HPMC los muab kev khaws cov dej zoo rau kev ua tau zoo.
Thaum HPMC yog siv los ua cov khoom siv uas muaj tsev nyob, nws pab tswj cov ntsiab lus noo noo thiab lav tsis muaj cov dej noo ploj los ntawm ziab ua ntej qhuav. Qhov no yog qhov tseem ceeb rau stucco lossis rov qab siv cov ntawv thov, raws li cov khoom siv uas dries sai sai tuaj yeem tawg thiab muaj peev xwm ua rau muaj kev puas tsuaj. HPMC muaj peev xwm txhim kho cov dej khaws cia yuav pab tswj kom muaj kev ua kom muaj dej noo ib ntus thoob plaws hauv cov ntaub ntawv thov, tso cai rau cov khoom siv kom tsis txhob muaj kev puas tsuaj.
Cov visccosity siab ntawm HPMC ua rau muaj cov tshuaj tuab, uas pab txhim kho nws cov khoom siv dej kom ceev. Qhov sib xws ntawm HPMC kom cov khoom seem uas cov khoom seem nyob rau saum npoo rau lub sijhawm ntau, yog ib qho kev tswj hwm cov ntsiab lus ya raws. Tsis tas li ntawd, cov tuab ua qeeb qeeb qeeb qeeb evaporation, kom ntseeg tau tias cov khoom siv maj mam thiab tu tas li rau kev ua tiav zoo.
Ntxiv rau nws cov khoom siv dej tau zoo, HPMC cov viscosity high tseem tuaj yeem txhawb nws tus nqi txaus, daim ntawv ua kom muaj zog thiab cov txheej txheem. High viscosity HPMC muab cov nqi ntws zoo dua, ua rau nws yooj yim dua mus kis thiab lis ntawm cov npoo kho. High-viscosity HPMC kuj muaj lub zog zoo dua, ua rau nws muaj kev sib raug zoo rau lub substrate thiab txhim kho tag nrho cov kev ua tau zoo ntawm cov khoom.
Thaum siv nyob rau hauv daim ntawv thov pobzeb hauv av Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas tau kev txav ua kom pom tseeb, xws li txuas hniav, kev loj, thiab lwm yam kev loj.
HPMC yog cov khoom tseem ceeb hauv kev tsim kho kev lag luam vim nws cov khoom siv dej zoo heev uas ua rau muaj kev ua tiav zoo. Cov visccosity siab ntawm HPMC txhim kho nws cov khoom siv dej kom txaus, sib koom tes rau ntau yam kev tsim kho hauv kev tsim kho hauv kev tsim kho hauv cov plasters thiab pobzeb cov nplaum. Nws cov kev ua tau zoo tshaj hauv cov ntawv kos duab kom ntseeg tau tias cov tsev ua vaj tse thiab cov qauv yuav sawv kev mus kuaj, ua haujlwm zoo thiab ua kom ib puag ncig ua rau ib puag ncig.
Lub sijhawm Post: Sep-05-2023