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, khi, dispersing, emulsifying, zaj duab xis-forming, suspending, adsorbing, gelling, nto active, noo noo-retaining thiab tiv thaiv colloid zog. Hydroxypropyl methylcellulose thiab methylcellulose 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.
Tshuaj formula:
Hydroxypropylmethylcellulose (HPMC) [C6H7O2(OH) 3-mn(OCH3)m(OCH2CH(OH)CH3)n] x
Daim ntawv thov tseem ceeb ntawm hydroxypropyl methylcellulose HPMC hauv cov khoom siv hauv tsev:
1. cement raws 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. Vaj huam sib luag muab tub lim
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. Pobzeb Adhesive ⑴ Yooj yim kom qhuav cov khoom xyaw, tsis muaj lumps, nce daim ntawv thov ceev, txhim kho kev tsim kho, txuag lub sijhawm ua haujlwm thiab txo cov 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 pem teb cov ntaub ntawv ⑴ muab viscosity thiab yuav siv tau los tiv thaiv sedimentation additives. 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 muaj nag lossis daus thiab ua rau lub neej ntev ntawm cov khoom. High lom stability, 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. Wallpaper 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 (1) muaj siab cohesiveness 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 muaj nplooj siab rau npaj txhij-siv mortar HPMC cov khoom mob siab rau npaj-sib tov mortar muaj dej tuav zoo nyob rau hauv npaj-mixed mortar tshaj li cov khoom zoo tib yam, kom ntseeg tau txaus hydration ntawm inorganic cementitious cov ntaub ntawv, ho tiv thaiv qhov txo ntawm cov nyiaj tshuav nyiaj li cas los ntawm kev ziab ntau dhau. , thiab Cracks tshwm sim los ntawm qhuav 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.
Post lub sij hawm: May-24-2023