Lub siab viscosity muaj kev tsim kho qib hydroxypropyl methylcellose (HPMC) yog tus tseem ceeb ntxiv siv nyob rau hauv ntau cov kev siv kev siv vim nws qhov kev siv tau zoo. HPMC yog ib nrab hluavtaws polymer muab tau los ntawm cellulose uas feem ntau siv los ua cov tuab, dej tuav tus neeg sawv cev rau cov khoom siv. Hom HPMC no tau tsim tshwj xeeb kom muaj siab viscosity, ua rau nws haum rau ntau yam kev tsim kho qhov twg thickening thiab dej khaws cia yog qhov tseem ceeb.
1. High viscosity: tus yam ntxwv tseem ceeb ntawm siab viscosity siv HPMC yog nws lub peev xwm thickening. Nws imparts siab viscosity rau kev daws teeb meem thiab kev ncua, uas yog qhov tseem ceeb rau kev txhim kho cov ntaub ntawv ua haujlwm xws li Mortars, cov khoom nplaum, groutcious thiab cov xis.
2. Dej khaws cia: HPMC yog hydrophilic nyob rau hauv qhov, uas txhais tau tias nws muaj kev muaj zog muaj zog rau dej. Cov qib siab visccity yog qhov tshwj xeeb tshaj plaws ntawm kev ua kom qhuav, yog li ua kom muaj dej txias ntev ntawm cov khoom siv khov. Cov cuab yeej no pab txhim kho kev tsim kho kev ua haujlwm, txuas ntxiv qhib lub sijhawm qhib thiab txhim kho adhesion ntawm cov khoom lag luam hauv tsev.
Txhim kho cov txheej txheem: los ntawm kev tswj cov hluav taws xob rheological ntawm lub tsev cov khoom, siab viscosity Has siab HPMC pab txhim kho cov txheej txheem thiab yooj yim ntawm daim ntawv thov. Nws kis tau zoo dua, txo kev ua si lossis kev swb, thiab txhawb nqa cov khoom xyaw rau hauv cov mis, ua rau kev txhim kho kev ua tau zoo thaum kev ua haujlwm kev tsim kho.
3. Txhim Kho Adhacosity: Kev siab viscosity HPMC ua raws li cov nplaum nplaum zoo thiab cov nplaum ua kom muaj zog rau ntau yam li cov pob zeb ua kom zoo nkauj li no, masonry, ntoo vuas. Nws tsim cov yeeb yaj kiab nplaum thaum ziab, yog li txhim kho txoj hlua khi zog thiab kav ntev, tshwj xeeb hauv cov av nplaum, plasters thiab stucco cov tebchaw.
4. Compatibied nrog cov Caas Systems: HPMC muaj kev sib raug zoo zoo nrog cov cement, gypsum, txiv qaub thiab lwm yam kev tsim kho hauv Hydraulic feem ntau siv hauv kev tsim kho. Nws tsis cuam tshuam dab tsi cuam tshuam rau lub sijhawm teem sijhawm lossis cov khoom siv ntawm cov khoom kawg, tab sis es tsis txhim kho cov khoom siv hluav taws xob uas xav tau thiab cov khoom nplaum.
5. Cov khoom tsis muaj ionic: Cov viscosity high viscosity HPMC feem ntau tsis yog ionic, lub ntsiab lus tsis muaj ib qho kev daws teeb meem. Cov cuab yeej no ua kom pom kev sib xyaw nrog ntau yam ntawm cov khoom ntxiv thiab cov khoom siv tsim kho tsis muaj kev cuam tshuam nrog kev cuam tshuam tsis xav tau lossis txoj kev tsis xav tau los yog destabilizing txoj kev tsim.
6. Thermal stability: HPMC tswj hwm nws cov kev ua tau zoo thiab cov yam ntxwv dhau ntawm qhov ntau, ntau, ua rau kev siv nyob rau hauv huab cua kub thiab huab cua sov. Nws ua kom zoo zoo thermal ruaj khov thaum lub sij hawm kho, nce qib kev ua tau zoo sib xws ntawm cov ntaub ntawv tsim tsev nyob hauv zej zog ib puag ncig.
7. Chemical Resistance: HPMC has a level of chemical resistance that protects building materials from degradation caused by exposure to alkalis, acids, salts and other chemical agents commonly found in the built environment. Cov cuab yeej no pab txhawb rau lub sijhawm ntev ntev thiab cov qauv txheej txheem ntawm cov tsev thiab cov vaj tse.
8. Ib puag ncig tus phooj ywg: raws li lub cellulose-raws polymer, hpmc yog biodegradable thiab ib puag ncig phooj ywg. Nws tsis yog ib qho kev noj qab haus huv tshwj xeeb thaum siv lossis siv, thiab nws siv txo cov kev tsim kho kom ruaj khov.
9 Nws cov khoom muaj ntau yam ua rau nws tsis tseem ceeb hauv kev ua tsiaj niaj hnub.
High-viscosity ua haujlwm hpmc sib txuas xaim, ua kom muaj kev sib xyaw nrog cov tshuaj ntsuab, ua rau nws cov ntaub ntawv tseem ceeb rau kev tsim cov ntaub ntawv hauv tsev. Nws cov versatility, ib puag ncig kev phooj ywg, thiab muaj peev xwm txhim kho kev ua haujlwm thiab lub peev xwm tau pab txhawb rau nws qhov kev npaj ua haujlwm hauv kev tsim kho.
Lub Sijhawm Post: Feb-19-2025