Hydroxypropylmethylcellulose (HPMC) yog cov khoom siv dav siv hauv kev tsim kho kev lag luam. Nws lub luag haujlwm tseem ceeb yog txhawm rau txhim kho kev ua haujlwm ntawm cov khoom siv xws li mortar thiab pob zeb. Ib qho ntawm cov ntawv thov ntawm HPMC yog gypsum-based self-leveling, uas tau muaj kev cuam tshuam loj rau kev tsim kho kev lag luam.
Self-leveling plaster yog cov khoom siv zoo hauv pem teb uas yooj yim rau nruab thiab tuaj yeem siv rau cov pob zeb lossis cov plag tsev qub. Nws yog qhov kev xaiv nrov rau kev lag luam thiab kev tsim kho vaj tse vim nws qhov kev ua haujlwm siab thiab ua haujlwm ntev. Qhov kev sib tw tseem ceeb hauv tus kheej-leveling plaster daim ntawv thov yog tswj kom zoo thiab sib xws ntawm cov khoom thaum npaj thiab teeb tsa. Qhov no yog qhov chaw HPMC los ua si.
Hydroxypropyl methylcellulose yog ib tug hluavtaws thickener uas yog ntxiv rau gypsum-raws li nws tus kheej-leveling mixes kom ntseeg tau tias txawm faib ntawm cov mix. Nws kuj pab tswj viscosity thiab tswj cov khoom zoo. HPMC yog ib qho tseem ceeb muaj nyob rau hauv nws tus kheej-leveling gypsum mixs raws li nws stabilizes qhov sib tov, kom ntseeg tau tias kev sib cais tsis tshwm sim thiab txhim kho lub zog ntawm cov sib tov.
Daim ntawv thov txheej txheem ntawm tus kheej-leveling gypsum suav nrog kev sib xyaw gypsum nrog HPMC thiab dej. Dej ua raws li tus neeg nqa khoom rau HPMC, kom ntseeg tau tias nws txawm faib hauv qhov sib tov. HPMC tau ntxiv rau qhov sib tov ntawm tus nqi ntawm 1-5% ntawm qhov hnyav qhuav ntawm gypsum, nyob ntawm seb qhov xav tau sib xws thiab siv cov khoom siv kawg.
Muaj ntau yam txiaj ntsig ntxiv rau HPMC rau kev sib xyaw ntawm tus kheej-leveling plaster. Nws ua rau cov khoom siv ruaj khov los ntawm kev ua kom nws lub zog thiab tiv thaiv dej, tshuaj lom neeg thiab puas. Tsis tas li ntawd, HPMC nce qhov hloov pauv ntawm cov khoom, tso cai rau nws hloov mus rau qhov hloov pauv ntawm qhov kub thiab txias. Qhov no tiv thaiv cov kab nrib pleb, txo cov khib nyiab thiab txhim kho kev zoo nkauj ntawm koj cov flooring.
Hydroxypropyl methylcellulose tuaj yeem ua raws li kev txhawb nqa adhesion los ntawm kev ua kom lub zog ntawm nws tus kheej-leveling gypsum rau lub substrate. Thaum sib tov yog thov, HPMC xyuas kom meej tias qhov sib tov ua raws li cov substrate, tsim ib daim ntawv cog lus ruaj khov thiab ruaj khov. Qhov no tshem tawm qhov xav tau ntawm cov neeg kho tshuab fasteners, txuag lub sijhawm thiab nyiaj txiag thaum lub sijhawm teeb tsa.
Lwm qhov txiaj ntsig ntawm HPMC hauv gypsum-based self-leveling yog nws txoj kev txhawb nqa rau ib puag ncig kev ruaj ntseg hauv kev tsim kho kev lag luam. HPMC yog ib puag ncig tus phooj ywg thiab yooj yim rau pov tseg, ua rau nws muaj kev nyab xeeb thiab ruaj khov rau lwm cov tshuaj sib xyaw.
Hydroxypropyl methylcellulose (HPMC) tau ua pov thawj tias yog ib qho tseem ceeb ntawm cov gypsum-based self-leveling daim ntawv thov. Los ntawm kev pab txhawb rau qhov sib xws, zoo thiab sib xws ntawm cov khoom sib xyaw, HPMC txhim kho cov kav ntev thiab zoo nkauj ntawm cov khoom. Nws cov txiaj ntsig ntawm kev txhim kho cov khoom siv zog pab txuag lub sijhawm kev lag luam thiab nyiaj txiag. Tsis tas li ntawd, kev siv HPMC txhawb nqa ib puag ncig kev ruaj ntseg, ua rau nws yog qhov kev xaiv zoo tshaj plaws hauv kev tsim kho kev lag luam.
Post lub sij hawm: Sep-14-2023