HydroxyPropyyl methylcellose (HPMC) yog cov ntau ntau cov neeg siv khoom, tshwj xeeb hauv cov tshuaj, kev tsim kho, cov tshuaj pleev thiab tshuaj pleev muag khoom thiab tshuaj pleev muag khoom thiab tshuaj pleev muag khoom noj, khoom noj thiab cov tshuaj pleev muag khoom thiab tshuaj pleev muag khoom noj thiab tshuaj pleev muag khoom thiab tshuaj pleev muag khoom noj thiab tshuaj pleev muag khoom thiab tshuaj pleev muag khoom thiab tshuaj pleev muag khoom noj thiab tshuaj pleev muag khoom thiab tshuaj pleev muag khoom noj thiab cov tshuaj pleev thiab tshuaj pleev muag khoom. Nws cov chaw muaj koob muaj txiaj ntsig los ntawm ntau qhov zoo nws muaj raws li phau ntawv.
1. Biocompatibility thiab kev nyab xeeb:
HPMC yog muab tau los ntawm cellulose, lub ntuj polymer pom hauv tsob ntoo cell phab ntsa. Yog li ntawd, nws yog feem ntau suav hais tias muaj kev nyab xeeb rau siv hauv cov tshuaj, khoom noj, thiab daim ntawv thov kom hniav kom zoo nkauj. Nws yog biocompible thiab tsis muaj qhov txaus ntshai kev pheej hmoo kev pheej hmoo, ua thawj qhov kev xaiv rau cov qauv uas muaj kev nyab xeeb.
2. Dej solubility thiab ua yeeb yaj kiab-ua yeeb yam:
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm HPMC ua cov nplaum yog nws cov dej solubility. Nws yaj nyob rau hauv dej txias los ua cov tshuaj ntshiab. Cov cuab yeej no yog pab tau tshwj xeeb hauv Tshuaj ntsiav tshuaj uas muaj qhov twg hauv phau ntawv no yuav tsum tau tawg ua haujlwm. Ib qho ntxiv, HPMC muaj cov yeeb yaj kiab zoo tshaj plaws uas ua rau muaj kev ruaj ntseg thiab kev ncaj ncees ntawm cov khoom kawg.
3. Kev tswj tau viscosity:
HPMC muaj nyob rau qib Viscosity kom cia cov kev tswj xyuas kom meej ntawm cov khoom ntawm cov qauv tsim. Cov lus no tseem ceeb hauv kev lag luam xws li kev tsim kho, qhov twg cov nplaum nrog cov viscosities tshwj xeeb yuav tsum muaj rau kev ua tau zoo hauv mortars thiab vuas cov nplaum.
4. Thermal gelation:
Hauv qee cov ntawv thov, HPMC tuaj yeem yauv ua thermal gelation, lub ntsiab lus nws tuaj yeem tsim cov gel thaum ua kom sov thiab rov qab mus rau kev daws teeb meem thaum txias. Cov cuab yeej no yog qhov zoo nyob rau hauv qee cov ntaub ntawv thov khoom noj thiab khoom noj khoom noj uas tswj tso tawm lossis txhim kho kev ruaj ntseg.
5. Txhim Kho Ntsiav Tshuaj Hardness thiab Yeeb Tshuaj:
Raws li cov phau ntawv hauv ntsiav tshuaj, HPMC pab kom tau txais lub kaus mom hardness, sawv daws cov ntsiav tshuaj nyob twj ywm ua haujlwm thaum tuav thiab xa khoom. Ib qho ntxiv, nws tuaj yeem kho kom tswj tau cov nqi yeeb tshuaj, tso cai rau kev paub txog kev ua raws li kev ua raws li cov tshuaj.
6. Kev sib xyaw nrog cov khoom xyaw nquag:
HPMC muaj kev sib raug zoo zoo nrog ntau yam khoom xyaw nquag, suav nrog cov tshuaj thiab tshuaj noj. Qhov kev sib raug zoo no yog qhov tseem ceeb hauv cov tshuaj ntawm cov tshuaj yog nws ua kom muaj kev ruaj ntseg thiab ua tau zoo ntawm cov chaw ua haujlwm.
7. Pho stability:
HPMC yog ruaj khov tshaj li ntau ntau cov lus, ua rau nws tsim nyog rau kev siv hauv cov qauv uas yuav muaj cov xwm txheej acidic lossis alkaline lossis alkaline. Qhov kev ruaj khov no tshwj xeeb tshaj yog rau kev txhim kho cov kws tshuaj thiab lwm yam khoom lag luam los hloov pH ib puag ncig.
8. Adhesion hauv tshuaj pleev ib ce:
Hauv kev ua kom zoo nkauj, HPMC ua rau muaj cov binder zoo heev vim nws cov nplaum nplaum. Nws pab kom ua tiav cov kev xav tau thiab sib xws rau cov khoom lag luam xws li cream, tshuaj thiab tshuaj pleev ib ce thiab tshuaj pleev ib ce.
9. Txhim kho cov kev tsim kho:
Nyob rau hauv kev tsim kho daim ntawv thov, HPMC feem ntau siv ua phau ntawv nyob hauv Mortars thiab pobzeb cov nplaum. Nws cov dej-khaws cov khoom siv txhim kho kom ua haujlwm tau zoo, thiab nws txoj kev sib raug zoo ua rau lub zog thiab lub zog ua haujlwm kawg ntawm lub tsev kawg.
10. Versatility hauv Cov Ntawv Thov Khoom Noj:
HPMC yog siv nyob rau hauv kev lag luam khoom noj khoom haus ua ib phau ntawv zuaj, thickener thiab stabilizer. Nws lub peev xwm los tsim cov gels thiab muab viscosity tswj ua rau nws muaj txiaj ntsig nyob rau hauv ntau yam khoom noj khoom haus, suav nrog cov ntses, hnav khaub ncaws, hnav thiab qab zib.
HydroxyPropyyl methylulose (HPMC) yog cov nplaum vim nws lub solubompatibility, tswj viscation, mermal gelation, thiab sib xyaw nrog ntau yam khoom xyaw nquag. Nws cov txiaj ntsig tau ntau yam kev lag luam, suav nrog cov tshuaj, kev tsim kho, khoom noj thiab cov tshuaj pleev ib ce. Raws li qhov kev thov rau kev ua haujlwm thiab kev nyab xeeb cov nplaum tseem loj tuaj, HPMC tseem xaiv thawj qhov kev xaiv rau cov kev tab tom nrhiav txhim khu kev qha thiab ntau yam.
Lub Sijhawm Post: Feb-19-2025