Hydroxypropyl methylcellulose (HPMC) ndi zinthu zosunthika zamafakitale zomwe zimagwiritsidwa ntchito kwambiri popanga khoma la putty powder formulations, makamaka ntchito zamkati ndi zakunja.
Chiyambi cha ufa wa HPMC:
Tanthauzo ndi kapangidwe:
Hydroxypropyl methylcellulose, yotchedwa HPMC, ndi ether yosinthidwa ya cellulose yochokera ku cellulose yachilengedwe. Amapangidwa ndi cellulose yosintha ma chemical, kagayidwe kachabe kamene kamapezeka m'makoma a maselo a zomera. Kusintha kumaphatikizapo kuyambitsa magulu a hydroxypropyl ndi methyl mu cellulose, zomwe zimapangitsa kuti pakhale polima wosungunuka m'madzi komanso wosinthasintha kwambiri.
Thupi ndi mankhwala katundu:
Kusungunuka: HPMC imasungunuka m'madzi, kupanga yankho lomveka bwino komanso lopanda mtundu. Kusungunuka kumatha kusinthidwa posintha digiri ya m'malo (DS) panthawi yopanga.
Viscosity: HPMC imapereka kukhuthala koyendetsedwa komanso kosasinthika ku yankho. Katunduyu ndi wofunikira pamapangidwe a khoma chifukwa amakhudza magwiridwe antchito ndi mawonekedwe azinthuzo.
Thermal gelation: HPMC imawonetsa kutentha kwa kutentha, zomwe zikutanthauza kuti imatha kupanga gel ikatenthedwa. Katunduyu ndi wamtengo wapatali pamapulogalamu ena pomwe gelling imafunikira.
Kugwiritsa ntchito HPMC mu khoma putty:
Interior wall putty:
1. Kulumikizana ndi kumamatira:
HPMC imakulitsa zomangira zomangira zamkati zamakhoma, kuonetsetsa kuti zimamatira bwino ku magawo monga konkriti, stucco kapena drywall.
Mapangidwe a cellulose osinthidwa a HPMC amapanga filimu yopyapyala pamwamba, yopereka mgwirizano wamphamvu komanso wokhazikika.
2. Kuthekera komanso kusavuta kugwiritsa ntchito:
Kukhuthala kolamulidwa kwa HPMC kumapangitsa kuti putty azitha kugwira bwino ntchito, kulola kuti igwiritsidwe ntchito bwino komanso mosavuta kumalo amkati.
Zimalepheretsa kugwedezeka ndi kudontha panthawi yogwiritsira ntchito ndikuonetsetsa kuti zokutira zofanana.
3. Kusunga madzi:
HPMC imagwira ntchito ngati chosungira madzi, kuteteza kutuluka kwamadzi mwachangu panthawi yochiritsa. Izi zimathandizira kupititsa patsogolo ma hydration a putty, zomwe zimapangitsa kukula kwamphamvu.
Kunja kwa khoma putty:
1. Kukana kwanyengo:
HPMC imakulitsa kukana kwanyengo kwa ma putty akunja ndikuteteza ku zotsatira zoyipa za kuwala kwa dzuwa, mvula ndi kusintha kwa kutentha.
Filimu ya polima yopangidwa ndi HPMC imakhala ngati chotchinga, kuteteza chinyezi kulowa ndikusunga kukhulupirika kwa zokutira.
2. Kulimbana ndi mng'alu:
Kusinthasintha kwa HPMC kumathandizira kukana ming'alu ya kunja kwa khoma putty. Imakhala ndi kayendedwe ka gawo lapansi popanda kusokoneza kukhulupirika kwa zokutira.
Katunduyu ndi wofunikira pazogwiritsa ntchito zakunja zomwe zimakhudzidwa ndi zovuta zachilengedwe.
3. Kukhalitsa:
HPMC imakulitsa kukhazikika kwa putty yakunja powonjezera kukana kwake ku abrasion, kukhudzidwa ndi kukhudzana ndi mankhwala.
Kanema woteteza wopangidwa ndi HPMC amathandizira kukulitsa moyo wa zokutira ndikuchepetsa kufunika kokonza pafupipafupi.
Ubwino wogwiritsa ntchito HPMC mu khoma putty:
1. Khalidwe lokhazikika:
HPMC imawonetsetsa kuti ma putty putty formulations ndi yofanana komanso amakwaniritsa zofunikira.
2. Kupititsa patsogolo ntchito:
Kukhuthala kolamulidwa kwa HPMC kumapereka kusinthika kwabwinoko, kupangitsa kuti ntchitoyo ikhale yabwino komanso yosavuta kugwiritsa ntchito.
3. Limbikitsani kumamatira:
Zomatira za HPMC zimathandizira kumamatira kwabwino kwambiri, kuwonetsetsa kuti putty amamatira bwino ku magawo osiyanasiyana.
4. Kusinthasintha:
HPMC ndi yosunthika ndipo ingagwiritsidwe ntchito m'mapangidwe osiyanasiyana ndipo ikhoza kusinthidwa kuti ikwaniritse zofunikira za polojekiti.
Pomaliza:
Hydroxypropyl methylcellulose (HPMC) ufa ndi chinthu chofunikira kwambiri mkati ndi kunja kwa khoma la putty formulations. Makhalidwe ake apadera, kuphatikizapo kusungunuka, kulamulira kwa viscosity ndi mphamvu zopanga mafilimu, zimapangitsa kuti zikhale zoyenera kupititsa patsogolo ntchito ndi kulimba kwa zokutira pakhoma. Kaya amayikidwa m'nyumba kapena kunja, zoyika pakhoma zomwe zili ndi HPMC zimapereka mawonekedwe osasinthika, magwiridwe antchito abwino komanso chitetezo chokhalitsa kuzinthu zachilengedwe. Pamene ntchito yomanga ikupitabe patsogolo, ntchito ya HPMC pakupanga ma putty putty imakhalabe yofunika kwambiri pakukwaniritsa zomaliza zapamwamba komanso zolimba.
Nthawi yotumiza: Jan-25-2024