HPMC (hydroxypropyl methyl celluse) ndiowonjezera matope a simenti. Ndiwosagwiritsa pa cellulose yopanda ionic ether eyather yopezeka ndi cellulose ndi methyl chloride ndi ma propylen oxide. HPMC imagwiritsidwa ntchito kwambiri m'makampani omanga chifukwa cha malo ake osungirako madzi abwino, ngati thiccener ndi binder, ndikusintha matope ndi mphamvu ya mphamvu ya simenti. Munkhaniyi, tikambirana magwiridwe antchito a cellulose kukhala matope a simenti.
kusungidwa kwamadzi
HPMC ili ndi madzi abwino osasunga madzi ndipo imatha kukhalabe ndi madzi a simenti nthawi ya makonzedwe. Kusunga kwamadzi kwa HPMC kumathandizira kuti simenti ikhale ndi kuchepetsedwa, potero kumawonjezera mphamvu ya matope a simenti. Zimathandizira kuchepetsa shrinkage, kupewa kusokonekera. HPMC ikawonjezeredwa ku matope a simenti, imapanga chotetezera mozungulira zinthu zamagetsi, ndikuchepetsa kuchuluka kwa madzi mu matope.
Sinthani Kuthana
HPMC imathandizira kugwirira ntchito maphero a simenti pochita ngati thicker ndi binder. Akasakanizidwa ndi madzi, hpmc amapanga zinthu zonga za gel omwe zimawonjezera mafayilo a osakaniza. Zinthu zokonda za gel okonda zimathandizira kuti denga lizisunga ndi matope ndipo silimatha mafupa ndi zopota. Kugwira ntchito kwadongosolo kwa simenti kumathandizanso kuchepetsa mtengo wonse wa ntchitoyi monga momwe amathetsera kufunika kosintha pafupipafupi. Kuphatikiza apo, zitha kugwiritsidwa ntchito mwachangu komanso zosavuta, kuwonjezera liwiro lomanga.
Onjezerani Mphamvu
Ubwino wina wofunika wogwiritsa ntchito HPMC mu matope a simenti ndikuti zimachulukitsa mphamvu yamatope. HPMC imathandizira kufalitsa simenti naye, zomwe zimadzetsa ubale wolimba, wodalirika kwambiri mpaka gawo lapansi. Mphamvu zosungidwa zamadzi zothandizira ku HPMC pakuchiritsa matope a simenti, potero akuwonjezera mphamvu zake. Madzi mu matope amapereka mankhwala kwa simenti ndipo kupezeka kwa HPMC kumathandizira kukonzanso madzi, motero kumawongolera njira yochiririra.
kuchepetsa shrinkage
Shrinkage ndi vuto wamba pa matope a simenti chifukwa cha kusinthika kwamadzi. Shrinkage imatha kuyambitsa kusokonekera, komwe kumatha kukhudza mphamvu ndi kulimba kwa kapangidwe kake. Komabe, HPMC imathandizira kuchepetsa matope a simenti mwa kusunga chinyezi komanso pang'onopang'ono. Izi zimachepetsa chiopsezo chowonongeka, zomwe zimapangitsa kuti mphamvu zolimba, zolimba.
Sinthani Mode
Pomaliza, HPMC imathandizira kukulitsa mphamvu ya matope a simenti. HPMC imagwira ngati chotchinga yomwe imathandizira kuti igwiritse matope. Zimathandizanso kupanga mgwirizano wamphamvu pakati pa matope ndi gawo lapansi. Kutha kwa matope a simenti kumayendetsedwa, ndipo kapangidwe kake ndi cholimba komanso cholimba, komwe kumatha kupirira mphamvu zakunja.
Pomaliza
Pomaliza, HPMC ndi yowonjezera mtengo pamenti chifukwa cha kusungidwa kwamadzi, kugwiritsidwa ntchito, mphamvu, kuchepa kwa shrinkage komanso koyenera. Njira yogwiritsira ntchito cellulose ya celmer imakhazikitsidwa ndi madzi osintha bwino, Edzi pakuchiritsa, imapereka simenti ya yunifolomu, imasintha komanso imachepetsa kuteteza. Kugwiritsa ntchito bwino matope a simenti kumatha kukuchititsani mphamvu, cholimba komanso chodalirika, chomwe ndi chovuta pa ntchito iliyonse yomanga. Ndi kugwiritsa ntchito bwino kwa HPMC, ntchito zomanga zitha kumalizidwa mwachangu, moyenera komanso ndi apamwamba.
Post Nthawi: Jul-27-2023