Ma polymer hydroxypropyll methylcellulose ya simenti yochokera pa pulasitala yochokera

Hydroxypropyl methylcellulose (hpmc) ndi polymer yachilengedwe yomwe yagwiritsidwa ntchito kwambiri pamakampani omanga ngati pulayala yowonjezera. Itha kugwiritsidwa ntchito ngati chosungira madzi, Thicker, ndi woyenera kukonza ma plaster a simenti.

HPMC ndi polymer yopanda madzi yosungunuka, yosungunuka yopangidwa ndi cellulose. Imachokera ku cellulose ya chilengedwe kudzera mu njira yosinthira mankhwala yomwe imaphatikizapo kuwonjezera kuwonjezera kwa hydroxypyl ndi magulu a methyl. Kusintha kumeneku kumabweretsa polymer yokhazikika madzi, kukhazikika kwamafuta, komanso kukana kwa mankhwala.

Kugwiritsa ntchito HPMC mu Phukusi la pulayala kumapereka mapindu ambiri monga:

1. Kugwiritsa ntchito bwino ntchito: HPMC imagwira ngati rifiogy yosintha kwambiri yomwe imathandizira kugwiritsa ntchito pulasitala. Zimawonjezera chotsatira, cousion, ndi kufalitsa pulasitala, kulola kuti igwiritsidwe ntchito m'malo mwake.
2. Kukonza madzi mosamala: HPMC imatha kuyamwa ndikusunga madzi ambiri, omwe amathandizira kupewa pulasitala kuti asafoke mwachangu kwambiri. Katunduyu amawonetsetsa kuti pulasitalayo amasasinthika komanso kugwirira ntchito nthawi yayitali, ngakhale m'malo otentha ndi owuma.
3. Kuchulukitsa Coutheon ndi Kutsatsa: HPMC imapanga filimu kuzungulira tinthu tating'onoting'ono, zomwe zimawonjezera coutheon ndi kutsatira kwa gawo lapansi. Katunduyu amawonetsetsa kuti pulasitalayo amakhala osasunthika ndipo samasweka kapena kupatukana ndi gawo lapansi.
4. Kuchepetsa kuwonongeka: hpmc kumathandizira kukhala wamphamvu komanso kusinthasintha kwa pulasitala, kuchepetsa mwayi wa kusokonekera chifukwa cha shrinkage kapena kukula.
5. Kukhazikika kwabwino: HPMC imapereka pulasitala yolimba ndi kukana kwamankhwala, ndikupangitsa kukhala kokhazikika komanso kugonjetsedwa nyengo ndi ukalamba.

Kuphatikiza pa izi zabwino, hpmc ndi zowonjezera komanso zowonjezera zachilengedwe zomwe zingathandize kuchepetsa chilengedwe cha mapula akomenti a simenti. Sikuti siabwaloti, biodegggedgele, ndipo simatulutsa zinthu zovulaza m'dongosolo.

Kuti mugwiritse ntchito HPMC mu Playsters-Cemeters, imaphatikizidwa ku zosakaniza zowuma ndi mchenga zisanafike. Mlingo woyenera wa HPMC umasiyana malinga ndi pulogalamuyo ndi zomwe mukufuna. Nthawi zambiri, mlingo wa 0,2% mpaka 0,5% ya hpmc kutengera kulemera kwathunthu kwa simenti ndi mchenga tikulimbikitsidwa.

HPMC ndi zowonjezera komanso zowonjezera zomwe zingathetse bwino ma plaster a simenti. Chiyambirenichilengedwe, kukhazikika, komanso ulemu kwa eco kumapangitsa kuti ma contramitor, Omanga, ndi omanga nyumba zolimbikitsira zokhazikika.