HPMC (hydroxypropyl methylcellulose) yog ib qho tshuaj sib xyaw ua ke tseem ceeb uas siv dav hauv cov ntaub ntawv tsim kho. Nws cov haujlwm tseem ceeb suav nrog kev txhim kho kev khaws dej ntawm cov pob zeb, txhim kho kev ua haujlwm thiab txhim kho kev tiv thaiv kab nrib pleb. Qhov zoo ntawm AnxinCel®HPMC yog ib qho ntawm cov yam ntxwv tseem ceeb ntawm nws cov kev ua tau zoo, uas cuam tshuam ncaj qha rau nws cov solubility thiab kev faib tawm hauv cov pob zeb thiab nws cov txiaj ntsig zoo rau cov yam ntxwv ntawm cov pob zeb.
1. Kev txhais ntawm HPMC fineness
HPMC fineness feem ntau yog qhia los ntawm qhov nruab nrab ntawm cov khoom me me lossis feem pua ntawm kev hla dhau ib lub sieve tshwj xeeb. HPMC cov khoom me me uas muaj qhov fineness siab yog me dua thiab muaj thaj chaw tshwj xeeb loj dua; HPMC cov khoom me me uas muaj qhov fineness qis yog loj dua thiab muaj thaj chaw tshwj xeeb me dua. Fineness muaj feem cuam tshuam loj rau qhov nrawm ntawm kev yaj, kev faib tawm sib xws thiab kev sib cuam tshuam ntawm HPMC nrog cov khoom cement.
2. Cov nyhuv rau kev khaws dej
Kev khaws dej yog ib qho cim qhia tseem ceeb ntawm kev ua haujlwm ntawm cov mortar, uas cuam tshuam ncaj qha rau kev ua haujlwm ntawm kev tsim kho thiab qhov zoo tom qab ua kom tawv. Qhov zoo ntawm HPMC ntau dua, qhov sib npaug ntawm cov khoom me me hauv cov mortar, uas tuaj yeem tsim cov dej khaws cia ntau dua, yog li txhim kho qhov kev khaws dej ntawm cov mortar. Tsis tas li ntawd, HPMC zoo yaj sai dua thiab tuaj yeem khaws dej ua ntej, uas yog qhov tshwj xeeb tshaj yog hauv kev tsim kho kub lossis nqus dej ntau.
Txawm li cas los xij, qhov zoo tshaj plaws yuav ua rau HPMC sib sau ua ke thaum nws sib cuag nrog dej sai, cuam tshuam rau nws qhov kev faib tawm hauv cov mortar, yog li txo qhov cuam tshuam ntawm kev khaws dej tiag tiag. Yog li ntawd, cov kev xav tau ntawm daim ntawv thov tiag tiag yuav tsum tau txiav txim siab tag nrho thaum xaiv HPMC qhov zoo.
3. Kev cuam tshuam rau kev ua haujlwm tau zoo
Kev ua haujlwm tau hais txog kev ua haujlwm ntawm cov tshuaj khib, uas feem ntau cuam tshuam nrog qhov fluidity thiab thixotropy ntawm cov tshuaj khib. HPMC cov khoom me me uas muaj qhov zoo dua tuaj yeem tsim cov txheej txheem colloid sib xws hauv cov tshuaj khib tom qab yaj, uas pab txhim kho qhov fluidity thiab lubricity ntawm cov tshuaj khib, yog li txhim kho kev ua haujlwm tau zoo. Tshwj xeeb tshaj yog hauv kev tsim kho tshuab, HPMC qhov zoo siab tuaj yeem txo qhov kev tiv thaiv txau thiab txhim kho kev ua haujlwm zoo.
Ntawm qhov tsis sib xws, vim yog qhov qeeb qeeb ntawm HPMC cov khoom me me nrog qhov tsis zoo, cov mortar yuav tsis muaj viscosity txaus thaum ntxov ntawm kev sib tov, cuam tshuam rau kev ua haujlwm tsim kho. Tsis tas li ntawd, HPMC nrog cov khoom loj dua yuav raug faib tsis sib npaug hauv cov mortar, cuam tshuam rau kev ua haujlwm tag nrho.
4. Kev cuam tshuam rau kev tiv thaiv tawg
Qhov kev tiv thaiv kab nrib pleb feem ntau cuam tshuam los ntawm qhov qhuav qhuav thiab kev faib tawm sab hauv ntawm cov mortar. HPMC nrog qhov zoo siab tuaj yeem faib sib npaug ntau dua hauv cov mortar los tsim cov zaj duab xis cellulose txuas ntxiv, uas ncua qhov dej evaporation thiab txo qhov qhuav qhuav ntawm cov mortar, yog li ua kom zoo dua qhov kev tiv thaiv kab nrib pleb.
Ntawm qhov tod tes, HPMC nrog qhov qis dua fineness feem ntau tsim cov cheeb tsam hauv zos hauv cov mortar vim yog qhov tsis zoo dispersion, tsis tuaj yeem tswj tau qhov qhuav shrinkage, thiab muaj kev tiv thaiv tawg tsis zoo.
5. Kev cuam tshuam rau lub zog
Qhov zoo ntawm HPMC muaj qhov cuam tshuam tsis ncaj qha rau lub zog ntawm cov mortar. HPMC nrog qhov zoo siab feem ntau pab cov cement kom hydrate ntau dua vim yog kev txhim kho kev khaws cia dej thiab kev sib kis, yog li txhim kho lub zog thaum ntxov ntawm cov mortar. AnxinCel®HPMC nrog qhov zoo qis dua tsis muaj zog hauv kev yaj thiab kev faib tawm, uas yuav ua rau tsis muaj dej txaus hauv thaj chaw, yog li cuam tshuam rau qhov sib xws ntawm lub zog ntawm mortar.
Yuav tsum nco ntsoov tias cov ntsiab lus HPMC siab dhau lossis qhov zoo yuav muaj kev cuam tshuam tsis zoo rau lub zog, vim tias cellulose nws tus kheej muaj kev pab tsawg rau cov khoom siv kho tshuab ntawm cov mortar, thiab ntau dhau yuav ua rau qhov sib piv ntawm cov khoom sib sau ua ke thiab cement dilute.
6. Kev xav txog kev lag luam thiab kev tsim kho
Hauv cov haujlwm tiag tiag, HPMC uas muaj qhov zoo tshaj plaws feem ntau kim dua, tab sis nws cov txiaj ntsig kev ua tau zoo yog qhov pom tseeb, thiab nws tsim nyog rau cov sijhawm uas muaj kev xav tau siab ntawm kev khaws dej thiab kev tiv thaiv tawg. Rau cov kev xav tau kev tsim kho dav dav, qhov zoo ntawm HPMC feem ntau tuaj yeem ua tiav qhov sib npaug ntawm kev ua tau zoo thiab kev lag luam.
HPMC nrog rau qhov sib txawv fineness muaj qhov cuam tshuam loj rau cov khoom ntawm mortar. High-fineness HPMC feem ntau muaj kev ua tau zoo dua hauv kev khaws dej, ua haujlwm tau zoo thiab tiv taus tawg, tab sis tus nqi siab dua thiab yuav ua rau muaj kev pheej hmoo ntawm kev sib sau ua ke thaum lub sijhawm yaj; low-fineness HPMC qis dua tus nqi, tab sis muaj kev txwv hauv kev txhim kho kev ua tau zoo. . Kev xaiv AnxinCel®HPMC fineness raws li cov kev xav tau tshwj xeeb yog ib qho tswv yim tseem ceeb los ua kom zoo dua mortar kev ua tau zoo thiab tswj cov nqi.
Lub sijhawm tshaj tawm: Lub Ib Hlis-08-2025