Cellulose ether (monga hpmc, hydroxypropyl methylcellulose) ndi mithyl hydrothyl cellulose) ndi kugwiritsidwa ntchito kwambiri pomanga matope. Amachita mbali yofunika kwambiri pokonza ndalama zomangira matope, kukonza magwiridwe antchito ndikuthana ndi nthawi yoyendetsa matope.
1. Zoyambira za HPMC ndi Miche
HPMC ndi polymer pompound yokhazikitsidwa ndi kusintha kwa mankhwala a cellulose. Mamolekyu ake amakhala ndi ma hydroxypyl ndi magulu a methyl, omwe amapangitsa kuti akhale ndi madzi osungunuka madzi abwino, kukula komanso kukhazikika. Mic ndi yofanana ndi hpmc, koma ili ndi magulu a hydroxyethyl mu kapangidwe kake, kotero kuti madzi osungunuka ndi kukhazikika kwa mahec ndi osiyana. Akhoza kukhala ndi mawonekedwe a netiweki ndikuwonjezera zinthu zakuthupi za matope.
2. Makina a zochita za cellulose ether mu matope
Pambuyo powonjezera hpmc kapena matope ku matope, ma cellulose ethel mamolekyulu amapanga njira yokhazikika yolumikizirana ndi madzi, zigawo zina zamankhwala ndi michere. Dongosolo lino limatha kukonza kwambiri zogwiritsira ntchito matope.
Kukula Kwakukulu: HPMC ndi Miche imatha kuwonjezera kuchuluka kwa matope, kumapangitsa kukhala kosavuta kugwira ntchito pomanga. Kusinthaku uku kumathandizanso kuchepetsa madzima a simenti, kusintha chisonyezo cha matope, ndikuwonjezera mphamvu ya matope.
Zotsatira za madzi: Mapangidwe a HPMC ndi Micher ali m'magulu a hydrophilic, omwe amatha kuyamwa pang'onopang'ono, potero ndikupewera nthawi yotseguka kapena kutengera bwino chifukwa cha madzi othamanga.
Sinthani madzimadzi ndi magwiridwe antchito: cellulose ether ether imathandizira kukonza madzimadzi, kulola kuti igwiritsidwe ntchito pamwamba pa maziko, omwe ali othandiza kugawa yunifolomu yolumikizira.
3. Mphamvu ya cellulose ether pamatope olimba
Kuphatikiza kwa cellulose ether mpaka matope nthawi zambiri kumakhudza mwachindunji mphamvu ya matope. Makamaka, zotsatira za HPMC ndi Miche pa matonthozo ogwirizana zimawonekera pazotsatira:
3.1 Kutengera Pamodzi Pamodzi Poyamba Kusunga Matope
HPMC ndi Mic imatha kukonza magwiridwe antchito pakati pa matope ndi maziko. Ntchito yomanga ingomalizidwa, kulimba mtima pakati pa malovu pakati pa malovu ndi gawo lapansi kumayendetsedwa kwambiri chifukwa ma cellulose amatha kusungira madzi ndikuchepetsa kuwuma kwa simenti. Izi ndichifukwa choti ma sipeme a Singano a Singano amatha kuyenda bwino, zomwe zimalimbikitsa kuuma koyambirira kwa matope.
3.2 Kutengera Kumakhala Ndi Mphamvu Yaitali Ya Matope
Pakapita nthawi, simenti imodzi ya matope imayang'aniridwa mosalekeza, ndipo mphamvu za matope ipitilirabe. Kusunga kwamadzi kumagwirira ntchito kwa cellulose ether kumathandizabe madziwo, potero kuchepetsa kuchepa kwa mphamvu zomwe zimayambitsidwa ndi madzi osakwanira.
3.3 Kuwongolera kukana kwa matope
HPMC ndi Mic imathanso kusintha matope a matope. Mphamvu yake yochita izi makamaka ikuwonjezera kukhazikika kwa matope ndikuchepetsa malire a madzi padziko lapansi, potero kuchepetsa vuto lokhala ndi madzi obwera chifukwa cha madzi. Kuphatikiza apo, kapangidwe ka Colloidal yopangidwa ndi matole a cellulose mu matope amatha kusintha mphamvu yonse ya matope, kupangitsa kuti ikhale yosavuta kusokonekera kunja kwa mphamvu zakunja.
3.4 zotsatira za kusintha kwa matope
Kafukufuku wawonetsa kuti kuwonjezera kuchuluka kwa HPMC kapena nkhanu kumatha kukonza mphamvu ya matope popanda kuwonjezera kulemera kwa matope. Nthawi zambiri, kuchuluka koyenera kwa cellulose ether ndi 0,5% -1.5%. Kuphatikizira kwambiri kumatha kuyambitsa matope kuti azikhala ndi madzi ambiri, omwe pambuyo pake amakhudza mgwirizano womwe ndi. Chifukwa chake, kuchuluka kwa ethel etheul ether kunaonjezeranso ndikofunikira kukulitsa mphamvu ya matope.
4. Kuyerekeza mitundu yosiyanasiyana ya cellulose et
Ngakhale HPMC ndi Miche ndi ofanana ndi makina awo ochita, zomwe zimapangitsa kuti matope athe matope ndi osiyana ndi mapulogalamu enieni. Mhec ndiochulukirapo hydrophilic kuposa hpmc, motero m'malo otentha, mahec amathanso kukhala ndi mphamvu kwambiri pakuwongolera mphamvu yolimba. Komabe, mwakunja, zimakhala zokhazikika pansi pa kutentha ndi chinyezi, ndipo ndizoyenera kukhazikitsidwa kwa matope ena.
Cellulose ed (hpmc ndi mathec) nthawi zambiri amagwiritsidwa ntchito zowonjezera matope, zomwe zimapangitsa kulimbitsa matope a matope mwa matope, komanso madzi. Kugwiritsa ntchito bwino ether ether sikungangolimbikitsa kutsatira matope pakati pa matope ndi gawo lapansi, komanso kusintha kuwonongeka kwa matope, ndikuwonjezera moyo wa matope. Mitundu yosiyanasiyana ya ethel ether ali ndi ntchito zosiyanasiyana, ndikusankha chinthu choyenera komanso mlingo ndikofunikira kukonza matope.
Post Nthawi: Feb-19-2025