HPMC, tseem hu ua hydroxypropylmethylcellulose, yog ib tug multifunctional polymer uas tau txais kev lees paub dav hauv ntau daim ntawv thov kev lag luam. Nws yog ib qho tsis muaj ntxhiab tsw, tsw qab dawb hmoov, yooj yim soluble hauv dej thiab lwm yam kuab tshuaj organic. HPMC yog tsim los ntawm chemically modifying natural cellulose derived from tree bark. Daim ntawv thov feem ntau ntawm HPMC yog nyob rau hauv kev tsim kho kev lag luam, qhov twg nws yog siv los ua cov khoom tseem ceeb hauv cov cement-raws li cov nplaum nplaum.
Cement-raws li pobzeb adhesives feem ntau yog siv rau hauv kev tsim kho vaj tse thiab kev lag luam. Lawv nyiam tshaj li cov cement mortars vim lawv lub zog zoo tshaj, ruaj khov dua thiab lub sij hawm ziab sai dua. Ntxiv HPMC rau cement-raws li pobzeb nplaum tuaj yeem txhim kho nws cov khoom rheological thiab txhim kho nws cov kev sib raug zoo. Nws kuj tseem txhim kho kev ua haujlwm thiab pab txo cov dej tuav.
Lub luag haujlwm ntawm HPMC hauv cementitious tile adhesives tsis tuaj yeem cuam tshuam. Nws muaj ntau yam zoo, suav nrog:
1. Txhim kho dej tuav: HPMC muaj cov khoom tuav dej zoo heev, uas txhais tau hais tias nws tuaj yeem khaws cov dej uas xav tau hauv cov nplaum nplaum. Qhov no ua rau cov nplaum hloov tau yooj yim thiab txhim kho nws cov txheej txheem.
2. Txhim kho thickening: HPMC ua raws li tus neeg sawv cev thickening nyob rau hauv cov cement-raws li cov nplaum nplaum. Nws txhim kho cov viscosity ntawm cov nplaum, tso cai rau nws yooj yim siv rau thaj chaw loj yam tsis muaj dej los yog khiav.
3. Txhim kho lub zog sib txuas: HPMC txhim kho lub zog sib txuas ntawm cov nplaum thiab cov substrate. Qhov no yog vim nws lub peev xwm los txo qhov tsim ntawm huab cua hnab ris, uas ua rau tsis muaj zog ntawm daim ntawv cog lus.
4. Txhim kho qhov tawg tsis kam: HPMC muab kev txhim kho elasticity rau cov nplaum. Qhov no yuav pab txo qis kev tsim cov kab nrib pleb, uas tuaj yeem ua rau cov nyiaj tsis muaj zog thiab cuam tshuam tag nrho lub zog ntawm cov qauv.
5. Txhim kho durability: HPMC zoo txhim kho lub zog ntawm cov cement-raws li pobzeb nplaum. Qhov ntawd yog vim nws tiv taus dej, tshuaj lom neeg, thiab kub siab, ua rau nws zoo tagnrho rau kev siv hauv qhov hnyav hnyav.
6. Txhim kho kev ua haujlwm: Ntxiv HPMC rau cov cement-based pobzeb nplaum tuaj yeem txhim kho kev ua haujlwm tau zoo. Nws tso cai rau cov nplaum kom kis tau yooj yim dua ntawm qhov chaw kom ua tiav ntau dua, zoo ib yam.
7. Txhim khu kev sib raug zoo: HPMC txhim kho qhov sib xws thiab kev ua kom zoo, ua rau nws zoo tagnrho rau ntau yam kev siv.
Hauv cov ntsiab lus, HPMC yog ib qho tseem ceeb hauv kev tsim cov cement-raws li cov nplaum nplaum. Nws cov khoom tshwj xeeb tau txhim kho qhov zoo ntawm cov nplaum, ua rau nws tsim nyog rau ntau yam kev tsim kho. Nyob ntawm daim ntawv thov, HPMC muaj nyob rau hauv ntau qib thiab cov qauv. Nws raug nquahu kom koj xaiv tus neeg muag khoom muaj npe nrov uas tuaj yeem muab cov khoom zoo HPMC uas ua tau raws li koj cov kev xav tau tshwj xeeb. Nrog rau cov khoom tsim nyog thiab cov txheej txheem thov kom raug, koj tuaj yeem txaus siab rau ntau yam txiaj ntsig ntawm HPMC hauv koj cov haujlwm tsim kho.
Post lub sij hawm: Lub Xya hli ntuj-26-2023