Hydroxypropyl methylcellulose (HPMC) yog ib qho uas tsis yog-ionic cellulose ether ua los ntawm ntuj polymer khoom cellulose los ntawm ntau cov txheej txheem tshuaj. Lawv yog cov tsis muaj ntxhiab, tsis qab thiab tsis muaj kuab paug dawb hmoov uas swells mus rau hauv ib qho ntshiab los yog me ntsis cloudy colloidal tov nyob rau hauv dej txias. Nws muaj thickening, bonding, dispersing, emulsifying, film-forming, suspending, adsorbing, gelling, superficial, noo noo-retaining thiab tiv thaiv colloid zog. Hydroxypropyl methyl cellulose thiab methyl cellulose tuaj yeem siv rau hauv cov khoom siv hauv tsev, xim kev lag luam, hluavtaws cob, kev lag luam ceramic, tshuaj, khoom noj khoom haus, textile, kev ua liaj ua teb, tshuaj niaj hnub thiab lwm yam lag luam.
Daim ntawv thov tseem ceeb ntawm hydroxypropyl methylcellulose HPMC hauv cov khoom siv hauv tsev:
1. Cement-raws li plaster
⑴ Txhim kho qhov sib xws, ua kom plastering yooj yim rau trowel, txhim kho sagging kuj, txhim khu fluidity thiab pumpability, thiab txhim kho kev ua hauj lwm efficiency.
⑵ Kev tuav dej siab, ua kom lub sijhawm khaws cia ntawm mortar, txhim kho kev ua haujlwm, thiab ua kom lub cev muaj dej thiab ua kom muaj zog ntawm cov mortar los ua kom muaj zog txhua yam.
⑶ Tswj cov kev taw qhia ntawm huab cua kom tshem tawm cov kab nrib pleb ntawm txheej txheej thiab tsim ib qho zoo tagnrho du nto.
2. Gypsum-based plaster thiab gypsum khoom
⑴ Txhim kho qhov sib xws, ua kom plastering yooj yim rau trowel, txhim kho sagging kuj, txhim khu fluidity thiab pumpability, thiab txhim kho kev ua hauj lwm efficiency.
⑵ Kev tuav dej siab, ua kom lub sijhawm khaws cia ntawm mortar, txhim kho kev ua haujlwm, thiab ua kom lub cev muaj dej thiab ua kom muaj zog ntawm cov mortar los ua kom muaj zog txhua yam.
⑶ Tswj qhov sib xws ntawm cov mortar los tsim cov txheej txheej zoo tagnrho.
3. Masonry mortar
⑴ Txhim kho qhov adhesion nrog cov masonry nto, txhim khu cov dej tuav, thiab txhim kho lub zog ntawm cov mortar.
⑵ Txhim kho lubricity thiab plasticity, thiab txhim kho kev tsim kho; cov mortar txhim kho los ntawm cellulose ether yog yooj yim rau kev tsim, txuag lub sij hawm tsim kho thiab txo cov nqi tsim kho.
⑶ Ultra-siab dej-retaining cellulose ether, haum rau high-dej-absorbing cib.
4. Phaj sib koom ua ke
⑴ Cov dej tuav tau zoo, ua kom lub sijhawm qhib thiab txhim kho kev ua haujlwm. High lubricant, yooj yim rau kev sib tov.
⑵ Txhim kho shrinkage kuj thiab tawg tsis kam, txhim kho txheej txheej zoo.
⑶ Txhim kho qhov adhesion ntawm qhov chaw sib txuas thiab muab kev ntxhib los mos thiab du.
5. Cov nplaum nplaum
⑴ Yooj yim kom qhuav cov khoom xyaw, tsis muaj agglomeration, nce daim ntawv thov ceev, txhim kho kev tsim kho, txuag lub sijhawm ua haujlwm thiab txo nqi ua haujlwm.
⑵ Los ntawm kev ncua lub sijhawm qhib, qhov ua tau zoo ntawm cov nplais tuaj yeem txhim kho thiab cov nyhuv adhesion zoo tuaj yeem muab.
6. Self-leveling cov ntaub ntawv hauv pem teb
⑴ Muab viscosity thiab tuaj yeem siv los ua cov tshuaj tiv thaiv sedimentation.
⑵ Txhim kho lub twj tso kua mis ntawm fluidity thiab txhim kho kev ua haujlwm ntawm paving hauv av.
⑶ Tswj dej tuav thiab shrinkage, txo cov kab nrib pleb thiab shrinkage ntawm av.
7. Cov xim pleev xim rau dej
⑴ Tiv thaiv kom tsis txhob nag lossis daus thiab ua kom lub neej ntev ntawm cov khoom. Siab lom ruaj ruaj, zoo heev compatibility nrog rau lwm yam Cheebtsam.
⑵ Txhim kho fluidity, muab zoo tiv thaiv txaws, los tiv thaiv sagging thiab leveling zog, thiab xyuas kom meej zoo nto tiav.
8. Phab ntsa hmoov
⑴ Dissolve sai tsis muaj pob, uas yog qhov zoo rau kev sib tov.
⑵ muab kev ruaj khov siab.
9. Extruded cement board
⑴ Nws muaj cohesiveness siab thiab lubrication, thiab txhim khu lub machinability ntawm extruded khoom.
⑵ Txhim kho ntsuab lub zog, txhawb kev hydration thiab curing nyhuv, thiab nce yield.
10. HPMC cov khoom rau cov khoom sib xyaw ua ke
HPMC cov khoom siv tshwj xeeb siv rau cov khoom sib xyaw ua ke muaj cov dej tuav tau zoo dua li cov khoom siv hauv cov khoom sib xyaw ua ke, ua kom muaj dej txaus ntawm cov khoom siv cementitious, thiab tiv thaiv kom tsis txhob muaj zog ntawm daim ntawv cog lus los ntawm kev ziab thiab tawg ntau dhau los ntawm kev ziab shrinkage. HPMC kuj muaj qee yam huab cua nkag mus. HPMC cov khoom siv tshwj xeeb uas siv rau cov khoom sib xyaw ua ke muaj qhov tsim nyog ntawm huab cua-entrained, uniform thiab me me npuas npuas, uas tuaj yeem txhim kho lub zog thiab smoothing ntawm cov khoom sib xyaw ua ke. Cov khoom HPMC tshwj xeeb uas siv rau cov khoom sib xyaw ua ke muaj qee yam kev cuam tshuam, uas tuaj yeem ua rau lub sijhawm qhib ntawm cov khoom sib xyaw ua ke thiab txo qhov nyuaj ntawm kev tsim kho. Hydroxypropyl methylcellulose (HPMC) yog ib qho uas tsis yog-ionic cellulose ether ua los ntawm ntuj polymer khoom cellulose los ntawm ntau cov txheej txheem tshuaj. Lawv yog cov tsis muaj ntxhiab, tsis qab thiab tsis muaj kuab paug dawb hmoov uas swells mus rau hauv ib qho ntshiab los yog me ntsis cloudy colloidal tov nyob rau hauv dej txias. Nws muaj thickening, bonding, dispersing, emulsifying, film-forming, suspending, adsorbing, gelling, superficial, noo noo-retaining thiab tiv thaiv colloid zog. Hydroxypropyl methyl cellulose thiab methyl cellulose tuaj yeem siv rau hauv cov khoom siv hauv tsev, xim kev lag luam, hluavtaws cob, kev lag luam ceramic, tshuaj, khoom noj khoom haus, textile, kev ua liaj ua teb, tshuaj niaj hnub thiab lwm yam lag luam.
Post lub sij hawm: Jan-11-2023