Hydroxypylpyl nothylcellulose (hpmc) ndi ether ether ether ether ether ether yomwe imagwiritsidwa ntchito kwambiri m'munda womanga, makamaka matope a simenti.
1. Kusungidwa kwamadzi
Chimodzi mwazinthu zazikulu za HPMC mu matope a simenti ndikusintha magwiridwe ake a madzi. Ngati madzi mu matope a simenti amaphulika mwachangu kwambiri, zimabweretsa kuchepa kwa simenti, motero zimakhudza nyonga ndi zomangira za matope. HPMC ikhoza "loko" mamolekyulu amadzi mu hydrophilicity yake, poyerekeza ndi madzi akumadzi ndikupanga chithandizo cha mankhwala a simenti kwathunthu. Magwiridwe antchito abwino osakhala okhawokha amangowongolera mphamvu zoyambirira za matope, komanso zimalepheretsa kufota pang'ono.
Kusungidwa kwamadzi ndikofunikira makamaka m'malo otentha kapena owuma. HPMC imatha kupanga filimu yotchinga yotentha pamtunda wouma kuti muchepetse kuwonongeka kwamphamvu, potero kuonetsetsa kuti zomangamanga zikuchepa.
2. Kupititsa patsogolo kugwirira ntchito
HPMC ili ndi mphamvu yofunika kwambiri ndipo imatha kusintha mafayilo komanso kugwirira ntchito matope a simenti. Panthawi yomanga, ngati matope a simenti ali ndi chimfine chamadzimadzi osakwanira, amawoneka kuti akusilira, kusaka, etc., ndikukhudza mtundu wake womanga. HPMC imatha kuwonjezera matope a simenti kuti ikhale ndi katundu wotsutsa-sag. Ngakhale pomanga pamtunda wowongoka, zitha kuwonetsetsa kuti matopewo amapezeka movutikira komanso ovuta kutsika.
HPMC imathanso kupanga kapangidwe ka matope ndi yunifolomu, imawonjezera chipilala ndi kubisitsa matope, ndikupanga ogwira ntchito zomangamanga bwino kwambiri poyendetsa ndi ntchito.
3. Kuwongolera Mphamvu
HPMC imatha kukulitsa ubale wolimba wa matope a simenti. Mphamvu ya matope a simenti ndi amodzi mwa zisonyezo zake zofunika kwambiri, makamaka ngati imagwiritsidwa ntchito mu dile yotayika, khoma lakunja limapereka katundu wogwirizira kwambiri. HPMC imathandizira kufanana kwa matope kuti tinthu tating'onoting'ono tikhoze kukhala bwino okutidwa ndi nthaka yamtengo wapatali, potero kukonza magwiridwe antchito.
Mphamvu zabwino zokha sizingangosintha chipongwe cha matope, komanso kupewanso mavuto ngati matanga ndi matamando a makoma a mkokomo, ndikuwonjezera kukhazikika kwa nyumbayo.
4. Kufikira maola otseguka
Nthawi yotsegulira ikutanthauza nthawi yomwe matope a simenti amakhala oyenera pambuyo pomanga. Kwa ogwira ntchito zomanga, akuwonjezera nthawi yotseguka matope amatha kuwongolera bwino ntchito yomanga, makamaka njira zomangira zovuta. HPMC imatha kukulitsa nthawi yotsegulira matope a simenti, kulola ogwira ntchito omanga kuti azigwiritsa ntchito nthawi yayitali ndipo pewani kulephera chifukwa cha kuwonongeka kwa matope.
Mukupanga zenizeni, hpmc zimatsimikizira ma hydrate othamangitsa simenti ndipo amafikira nthawi yoyendetsa matope pochedwetsa madzi, omwe amasintha kusinthasintha kwa ntchito kukhalapo.
5. Sinthani kukana kutsutsana
HPMC imathanso kukonzanso kuwonongeka kwa matope a simenti. Matope a simenti adzakumana ndi vuto nthawi yolimbana. Makamaka ngati chinyezi chatayika mwachangu kwambiri kumayambiriro, ming'alu yovuta imatha kuchitika mosavuta, ikukhudza mawonekedwe ndi kulimba kwa nyumbayo. HPMC Modzipereka Kuchepetsa kuthekera kouma pokonzanso matope a matope, osagwirizana ndi chinyezi ndi kutentha kwakanthawi, ndikuchepetsa kupsinjika kouma.
6. Pewani tsankho komanso magazi
Mu matope a simenti, ngati zinyezi ndi zolimba tinthu tokhazikika, zimabweretsa mavuto monga magazi ndi tsankho, zomwe zingakhudze mphamvu ndi kufanana kwa matope. HPMC imatha kupewa zochitika izi powonjezera matope a simenti, onetsetsani kuti simenti tinthu tating'onoting'ono, kupewa kutaya magazi, ndikuwonetsetsa kuti matope a simenti atakhazikika.
7.
HPMC imakhudzanso kukonza chisanu kukana matope a simenti. M'madera ozizira, chinyezi mu matope a simenti chitha kuwumitsa, kupangitsa kuti zinthu ziwonjezere voliyumu komanso kusweka. Mwa kukonza mapangidwe ake ndi kusungidwa kwamadzi kwa matope, hpmc kumatha kuchepetsa kudula kwa madzi amkati, potengera kukana kwa matope ku Free-Thanter.
8. Thandizani kutsutsana
HPMC imathanso kukhudzidwa kwambiri ndi matope a simenti. Mwa kukulitsa matope a simenti, hpmc imatha kuchepetsa kulowererapo kwa anthu omwe ali ndi ma acidis, alkali, ndi mchere, kuteteza kukhazikika kwa matope ndi moyo wake.
9. Kukula Kwambiri
HPMC imathandizirana ndi sipi ya simenti mwa kugawa madzi, ndikupanga simenti slurry dewor, yomwe imasintha mphamvu yovuta kwambiri. Ngakhale HPMC yokha sitenga nawo mbali mwachindunji mu simenti ya simenti, kusintha kwake kumatha kupanga mawonekedwe amkati okhazikika atathamangitsa, motero kukonza mawonekedwe ake.
Udindo wa hydroxpyl methylcellulose mu matope a simenti amawonekera makamaka pokonza madzi, kukonza kugwirira ntchito, kukulitsa mphamvu yolumikizira, yowonjezera nthawi yolumikizirana. Makhalidwe awa amapanga hpmc yowonjezera pa matope a simenti. Zotsatira zake ndizotchuka makamaka m'malo otukuka monga kuuma, kutentha kwambiri, komanso kuzizira. Chifukwa chake, kugwiritsa ntchito bwino kwa HPMC kumatha kusintha kwambiri momwe ntchito imagwiridwira ntchito ndi kukhazikika kwa matope a simenti, omwe ndi abwino kwambiri kuti athetse magwiridwe antchito omanga.
Post Nthawi: Feb-17-2025