HydroxyPropyyl methylcellose (HPMC) yog lub ntuj polymer nquag siv nyob rau hauv ntau yam kev lag luam suav nrog cov khoom noj suav nrog cov zaub mov noj suav nrog cov zaub mov noj suav nrog cov khoom noj, chaw muag tshuaj thiab kev tsim kho. Nyob rau hauv cov txheej txheej kev lag luam, HPMC yog qhov xav tau ntawm qhov tsim nyog tau vim nws cov khoom muaj txiaj ntsig, ua rau nws tsis tseem ceeb hauv cov khoom muaj peev xwm ua tau zoo. Txheej txheem HPMC yog muaj nuj nqis rau lawv zoo heev viscosity, adhesion thiab dej tsis kam.
1. HPMC muaj cov dej ua kom zoo rau dej. Qhov no yog vim tias nws yog hydrophricic polymer, lub ntsiab lus nws muaj qhov muaj zog nyiam ua cov lwg me me. Thaum HPMC ntxiv rau cov tsho tiv no, nws pab khaws cov noo noo kom ntev mus ntev, uas yog qhov tseem ceeb los tswj qhov zoo thiab ruaj khov ntawm cov txheej txheem. Txheej ntawm cov khoom siv dej kom tau yooj yim tuaj yeem ua kom yooj yim lossis tsis zoo thaum raug cov dej noo lossis av noo. Yog li ntawd, HPMC txhim kho cov dej tsis kam ntawm cov txheej, ua kom haum rau kev siv hauv cov chaw hnyav.
2. HPMC muaj cov yeeb yaj kiab zoo tshaj plaws-ua yeeb yam. HPMC lwg me me muaj cov saw ntev uas tso cai rau lawv los ua cov yeeb yaj kiab uas muaj zog thaum cuam tshuam nrog lwm cov khoom siv txheej thiab cov pigments. Qhov no ua kom pom tseeb tias cov xim tha xim ua los ntawm HPMC muaj cov nplaum zoo thiab cov nplaum kom zoo rau saum npoo nws tau thov rau. Cov yeeb yaj kiab ua yeeb yam ntawm HPMC kuj txhim kho lub durability ntawm txheej, nce nws kev tawm tsam rau kev puas tsuaj thiab kev puas tsuaj.
3. HPMC muaj kev sib raug zoo zoo nrog lwm cov txheej txheej. Nws yog ib qho khoom siv ntau yam uas tuaj yeem ntxiv rau ntau yam txheej txheem txheej txheej tsis cuam tshuam rau nws cov kev ua tau zoo. Qhov no txhais tau tias cov txheej txheem ua los ntawm HPMC tuaj yeem raug kho kom tau raws li qhov xav tau tshwj xeeb, xws li cov dej ntws tawm, gloss lossis kev ntxhib los mos. Ib qho ntxiv, HPMC tuaj yeem tsim nrog cov vascosities sib txawv, pub rau kev tsim cov txheej txheej nrog cov khoom siv sib txawv.
4. HPMC yog ib puag ncig phooj ywg thiab muaj kev lom zem tsawg. Qhov no ua rau nws muaj kev nyab xeeb rau kev siv cov tsho tiv no uas tau nkag mus rau hauv cov zaub mov, dej lossis lwm yam khoom siv rhiab. Txheej ci tau los ntawm HPMC yog biodegradable thiab ua rau tsis muaj kev hem thawj rau ib puag ncig, ua rau lawv xaiv txaus nyiam rau ib puag ncig cov neeg siv khoom.
5. HPMC yog yooj yim siv thiab lis. Nws los nyob rau hauv ntau hom kev xws li hmoov los yog kev daws teeb meem thiab yog yooj yim soluble hauv dej. Qhov no ua rau nws yooj yim sib xyaw nrog lwm cov txheej txheej thiab ua kom pom tseeb tias HPMC muaj cov kev ntxhib los mos thiab viscosity. Ib qho ntxiv, HPMC yog qhov tsis-ionic sib txuas, uas txhais tau tias nws tsis cuam tshuam los ntawm PH ntawm cov xim tsim. Qhov no ua rau nws ua tau cov khoom noj ruaj khov uas tuaj yeem siv rau cov kua qaub lossis cov xim pleev xim alkaline.
6. HPMC muaj kev ua tau zoo heev nyob rau hauv qhov kub thiab cua sov zoo li cas. Txheej txheem ua los ntawm HPMC yuav tsis tau dhau los lossis tawg thaum raug rau cov kub tsawg. Lawv kuj tswj hwm lawv cov peev txheej thaum raug cov av noo siab. Qhov no ua cov tsho tiv no ua los ntawm HPMC haum rau siv nyob rau hauv ntau qhov chaw ib puag ncig, suav nrog huab cua huab cua huab.
7. HPMC muaj solubility zoo hauv cov kuab tshuaj muaj kuab. Cov cuab yeej no ua rau HPMC tau yooj yim koom rau hauv cov kuab tshuaj pleev roj ua ke. Tsis tas li ntawd, vim HPMC yog qhov tsis-ionic compound, nws tsis cuam tshuam rau cov khoom ntawm cov kuab tshuaj lossis kev ruaj ntseg ntawm txheej txheej txheej txheej. Qhov no ua rau HPMC ib qho khoom xyaw zoo tagnrho nyob rau hauv ntau cov txheej txheem qauv, suav nrog cov kuab tshuaj, suav nrog cov kuab tshuaj yeeb yaj kiab.
Lub luag haujlwm tshwj xeeb ntawm HPMC ua nws qhov tsis muaj peev xwm tsis tseem ceeb hauv cov txheej txheem high-efficiess. Nws cov dej ua haujlwm zoo, zaj duab xis ua qauv, ib puag ncig kev ua phooj ywg, kev ua tau zoo thiab solubility ua rau siv nyob rau hauv ntau yam qauv tsim. Txheej txheem HPMC yog muaj nuj nqis rau lawv cov nplaum zoo nkauj, dej tsis kam thiab kav ntev, ua rau lawv zoo tagnrho rau kev siv nyob rau hauv ib puag ncig ib puag ncig. Vim tias nws cov versatility, HPMC tuaj yeem raug kho kom tau raws li qhov xav tau tshwj xeeb, ua rau nws xaiv nrov rau hauv kev lag luam txheej. Zuag qhia tag nrho, HPMC yog qhov ua tau zoo uas yog qhov tseem ceeb uas yog qhov tseem ceeb rau kev ua tiav ntawm cov txheej txheem high-efficym.
Lub sijhawm Post: Oct-13-2023