Raws li kev tsim txom kev tsim kho txuas ntxiv mus nthuav dav thiab txhim kho, muaj cov khoom siv hauv tsev zoo thiab muaj kev sib xyaw kom zoo nkauj tau dhau los ua ntau yam kev siv. HydroxyPropyloostrose (HPMC) yog qhov tseem ceeb ntxiv uas txhim kho qhov zoo, cov yam ntxwv ntawm cov neeg muaj txiv neej no. Hauv tsab xov xwm no peb tham txog qhov zoo ntawm kev siv HPMC hauv kev sib xyaw qhuav.
1. Txhim Kho Kev Ua Haujlwm thiab Cohesion
Ib qho tseem ceeb tshaj plaws ntawm HPMC hauv kev sib xyaw kom qhuav yog nws lub peev xwm txhim kho kev ua haujlwm thiab cohesion. HPMC ua raws li cov tuab dua, nce vortcosity ntawm cov tshuaj khib, ua kom nws yooj yim dua mus rau kis thiab thov. Nws tseem ua rau cov nplaum thiab cohesion ntawm cov sib tov sib txawv, tiv thaiv kev nrib pleb, shrinkage thiab sib cais. Tsis tas li ntawd, HPMC txo cov dej poob thaum kho, txhim kho lub zog ntawm cug tshuaj khib thiab ua kom muaj qhov chaw zoo nkauj thiab hnav kom zoo dua.
2. Ua kom cov dej ua haujlwm
Lwm qhov tseem ceeb uas tau txais txiaj ntsig ntawm HPMC hauv kev sib xyaw kom qhuav yog nws lub peev xwm ua kom muaj zog hauv dej siab. HPMC tuaj yeem nqus thiab khaws cov dej ntau, uas qeeb qeeb ntawm cov ziab khaub ncaws kom qhuav thiab kho cov txheej txheem ntawm lub tshuaj khib. Qhov no pub rau lub sijhawm txaus rau lub tshuaj khib los khom, daim ntawv cog lus thiab teeb tsa, txo qis kev pheej hmoo ntawm kev tawg, ntsuas thiab tsis sib luag. Ib qho ntxiv, HPMC pab kom muaj cov dej noo sib tov ntawm lub tshuaj khib, uas txo cov caij nyoog ntawm huab cua thiab nce lub zog thiab ntev ntawm cov qauv.
3. Txhim kho yooj ywm thiab lub zog
Hauv cov coluted qhuav, hpmc kuj tseem tuaj yeem txhim kho qhov hloov tau thiab lub zog ntawm lub tshuaj khib. Raws li lub tshuab yas, HPMC txhim kho cov elasticity thiab yooj ntawm cov tshuaj khib, ua rau nws tiv taus ntau dua thiab cuam tshuam. Qhov no txo txoj kev pheej hmoo ntawm cov kab nrib pleb, tawg thiab ua tsis tiav, tshwj xeeb tshaj yog nyob rau hauv cov chaw ntxhov siab xws li cov ceg, seams thiab npoo. Tsis tas li ntawd, HPMC nthuav dav lub tshuaj khib los ntawm kev nce nws lub tensile thiab compressive lub zog, yog li kev txhim kho lub peev xwm thiab ruaj khov ntawm cov qauv.
4. Zoo dua tshuaj thiab huab cua tsis kam
Ntxiv HPMC kom qhuav-sib xyaw Mortars tseem nce lawv cov tshuaj thiab huab cua tsis kam. HPMC ua raws li kev thaiv kom txo cov permeability ntawm tshuaj khib thiab tiv thaiv cov tshuaj tsw qab, roj thiab kev phom sij xws li ntsev, kua qaub thiab alkali. Qhov no tiv thaiv cov qauv no los ntawm corrosion, leaching thiab kev tsis pom zoo, tshwj xeeb tshaj yog nyob rau hauv kev hnyav thiab heev. Tsis tas li ntawd, HPMC txhim kho UV tiv taus, thermal ruaj khov thiab khov-thau qhov kev pheej hmoo ntawm fading, discoloration thiab tawg vim kub hloov.
5. Kev tiv thaiv kev lag luam thiab ib puag ncig
Lwm qhov zoo dua ntawm HPMC hauv kev sib xyaw kom qhuav yog nws cov txiaj ntsig zoo thiab ib puag ncig ua phooj ywg. HPMC yog cov khoom siv HPM yog qhov hloov tshiab uas tuaj yeem hloov cov hluavtaws thiab kev phom sij hauv kab tshuaj khib nyiab thiab txo qhov kev tsim kho ib puag ncig ntawm kev tsim kho kev tsim kho. Tsis tas li ntawd, HPMC yog qhov ua tau zoo thiab yuav tsum tau tsuas yog ib qho me me ntawm cov khoom ntxiv kom ua tiav cov khoom xav tau thiab cov khoom ntawm lub tshuaj khib, txo tus nqi thiab pov tseg hauv cov txheej txheem ntau lawm.
Hauv kev xaus
Hauv cov ntsiab lus, HPMC yog qhov tseem ceeb thiab muaj txiaj ntsig zoo nyob rau hauv qhuav-retention, cleationion, muaj zog, tshuaj lom neeg thiab kev khwv nyiaj txiag ntawm lub cug. Kev siv HPMC hauv kev sib xyaw qhuav-sib xyaw ua kom muaj txiaj ntsig zoo thiab muaj kev txhim kho kom ruaj khov uas muaj cov neeg ruaj khov, muaj kev nyab xeeb thiab ua kom muaj kev nyab xeeb thiab zoo nkauj. Yog li ntawd, nws raug nquahu kom xav txog HPMC ua cov khoom xyaw tseem ceeb hauv cov khoom lag luam uas muaj peev xwm thiab cov khoom lag luam zoo ib yam thiab cov kev pabcuam zoo sib xws thiab cov kev pab cuam thiab cov kev pabcuam zoo sib xws thiab txhim khu kev qha.
Lub sij hawm Post: Lub Yim Hli 09-2023