Hydroxypropyl Methylcellulose (HPMC) ndi mankhwala opangidwa ndi cellulose ether omwe amagwiritsidwa ntchito kwambiri pomanga, chakudya, mankhwala ndi mankhwala a tsiku ndi tsiku.Mu konkire, HPMC, monga chowonjezera, ili ndi ntchito zambiri zapadera ndi ubwino ndipo imatha kusintha kwambiri ntchito ya konkire.
Udindo wa HPMC mu konkire
1. Sinthani magwiridwe antchito a konkriti
Imodzi mwa ntchito zazikulu za HPMC ndi kusintha workability konkire, ndiko kuti, chomasuka ntchito ndi fluidity.HPMC ali ndi zotsatira zabwino thickening ndipo akhoza kuonjezera mamasukidwe akayendedwe konkire slurry, kukhala kosavuta kufalitsa ndi mawonekedwe pomanga.Komanso, HPMC akhoza kumapangitsanso kasungidwe madzi a konkire slurry, kupewa evaporation mofulumira madzi kutentha kapena mpweya kuyanika zinthu, ndi kusunga plasticity wa konkire.
2. Limbikitsani kusunga madzi konkire
HPMC akhoza kwambiri kusintha madzi posungira konkire.Izi ndichifukwa choti magulu a hydroxyl ndi methoxy mu kapangidwe ka maselo a HPMC ali ndi mphamvu zoyamwa madzi, zomwe zimatha kuyamwa ndikusunga madzi ndikuchepetsa kutaya madzi.Izi zosungirako madzi ndizofunikira pakuumitsa konkriti, makamaka m'malo owuma, kuteteza ming'alu pa konkriti ndikuwonetsetsa kuti konkriti ikuuma komanso kukula kwamphamvu kwa konkriti.
3. Sinthani kukana kwa ming'alu ya konkire
HPMC imatha kukonza kasungidwe ka madzi konkire ndikuletsa madzi kuti asatuluke mwachangu, potero amachepetsa ming'alu yocheperako chifukwa cha kutaya madzi.Komanso, thickening zotsatira za HPMC kumathandizanso kuchepetsa tsankho ndi magazi a konkire slurry, ndi kuchepetsanso kuchitika kwa ming'alu.Makamaka m'malo akuluakulu a konkire kapena kutentha kwambiri, zotsatira zotsutsana ndi HPMC ndizofunika kwambiri.
4. Sinthani kumamatira kwa konkire
HPMC akhoza kusintha kugwirizana katundu wa konkire ndi magawo osiyana.Izi ndichifukwa choti chinthu cha colloidal chopangidwa ndi HPMC chosungunuka m'madzi chimatha kupanga filimu yopyapyala pamwamba pa konkriti kuti ipititse patsogolo mphamvu yolumikizirana pakati pa konkriti ndi zida zina.Izi ndizofunikira kwambiri pazogwiritsa ntchito monga matope a pulasitala ndi zomatira matailosi, zomwe zitha kupititsa patsogolo kwambiri zomangamanga komanso kulimba.
5. Sinthani nthawi yoyika konkire
HPMC ili ndi ntchito ina yoyendetsera nthawi ya coagulation.Malinga ndi zosowa, pakusintha kuchuluka kwa HPMC yowonjezeredwa, nthawi yoyika konkriti imatha kukulitsidwa kapena kufupikitsidwa, zomwe zimathandizira kukonza zomanga ndikuwongolera kupita patsogolo.Izi ndizofunikira makamaka ngati kumanga kumafuna nthawi yayitali kapena kutentha kwambiri.Ikhoza kulepheretsa konkriti kuti isalimbane mofulumira ndikuonetsetsa kuti zomangamanga zili bwino.
6. Sinthani kukana kuzizira kwa konkriti
Kusungirako madzi ndi kukhuthala kwa HPMC kumatha kusintha mawonekedwe amkati a konkire ndikupangitsa kuti ikhale yolimba, potero kumapangitsa kuti konkriti ikhale yolimba.M'madera ozizira kapena mapulojekiti omwe amayenera kupirira kuzizira kwachisanu, kuwonjezera HPMC kumatha kupewa kusweka ndi kuphulika kwa konkire komwe kumachitika chifukwa cha kuzizira kwamadzi ndikuwonjezera moyo wake wautumiki.
Kugwiritsa ntchito HPMC mu konkriti
HPMC chimagwiritsidwa ntchito konkire, makamaka mbali zotsatirazi:
1. Dry Mix matope
Mumtondo wosakanizika wowuma, HPMC imatha kusintha kwambiri kusungidwa kwa madzi ndi kugwirira ntchito kwa matope, kuletsa madzi kuti asatuluke mwachangu, ndikuwongolera magwiridwe antchito ndi luso la zomangamanga.Kuphatikiza apo, HPMC imathanso kukonza kukana kwa ming'alu ndi kumamatira kwamatope ndikuwonjezera moyo wake wautumiki.
2. Zomatira matailosi
Kuwonjezera HPMC pa zomatira matailosi akhoza kusintha mamasukidwe ake mamasukidwe ndi kugwirizana mphamvu, kuonetsetsa kuti matailosi si ophweka kutsetsereka ndi kugwa poyika ndondomeko.HPMC imathanso kukonza kasungidwe ka madzi komanso kukana kwa zomatira za ceramic, kuteteza matailosi a ceramic kuti asaphwanyike chifukwa cha kutayika kwa madzi kapena kufota kouma.
3. Pulata matope
Mu pulasitala matope, HPMC akhoza kusintha fluidity ndi kusunga madzi mu matope, kupangitsa kuti ikhale yosavuta kugwiritsa ntchito ndi mawonekedwe pa ntchito yomanga, kuchepetsa mavuto kumanga ndi mphamvu ntchito.Nthawi yomweyo, HPMC imathanso kukulitsa kukana kwa ming'alu ndi mphamvu yomangirira yamatope kuti zitsimikizire kusalala komanso kulimba kwa pulasitala.
4. Pansi pawokha
Pakati pa zida zodziyimira pawokha, HPMC imatha kukonza madzi ake komanso kusunga madzi, kuwonetsetsa kuti zida zapansi zitha kudziyimira pawokha panthawi yomanga, ndikuchepetsa kuwonongeka kwa zomangamanga ndi kusagwirizana kwapansi.Kuphatikiza apo, HPMC imathanso kukulitsa kukana kwa ming'alu ndi kukana kwa zinthu zapansi, kupititsa patsogolo moyo wawo wautumiki ndi kukongola.
Kugwiritsa ntchito hydroxypropyl methylcellulose (HPMC) mu konkire kuli ndi zabwino zambiri ndipo kumatha kusintha kwambiri magwiridwe antchito, kusunga madzi, kukana ming'alu, kumamatira ndi kukana kuzizira kwa konkire.Powonjezera mwanzeru ndikugwiritsa ntchito HPMC, mtundu wa zomangamanga ndi kulimba kwa konkriti zitha kukonzedwa kuti zikwaniritse zosowa zosiyanasiyana zamainjiniya.M'tsogolomu, ndi kupita patsogolo kosalekeza kwa teknoloji ndi kupititsa patsogolo ntchito, ntchito ya HPMC mu konkire idzakhala yofunika kwambiri, kubweretsa phindu lachuma ndi chikhalidwe cha anthu.
Nthawi yotumiza: Jul-23-2024