1. Ziziphi izalathisi eziphambili zobugcisa ze-hydroxypropyl methyl cellulose (HPMC)?
Ubungakanani beHydroxypropyl kunye ne-viscosity yeHPMC, uninzi lwabasebenzisi luxhalabile ngezi mpawu zimbini. Ukugcinwa kwamanzi ngokubanzi kungcono kwabo banomxholo ophezulu we-hydroxypropyl. Ubuninzi be-viscosity, ukugcinwa kwamanzi, ngcono kakhulu (kunokuba bube bupheleleyo), kunye nobuninzi be-viscosity, kungcono ukusetyenziswa kwi-mortar yesamente.
2. Yintoni umsebenzi ophambili wokusetyenziswa kwe-HPMC kwi-wall putty?
Kwi-wall putty, i-HPMC inemisebenzi emithathu: ukuqina, ukugcinwa kwamanzi kunye nokwakhiwa.
Ukuqina: I-Cellulose ingenziwa ibe nkulu ukuze ixhonywe kwaye igcine isisombululo sifana, kwaye imelane nokugoba. Ukugcinwa kwamanzi: yenza i-wall putty yome kancinci, kwaye incede i-calcium engwevu ukuba isabele phantsi kwesenzo samanzi. Ulwakhiwo: I-Cellulose inefuthe lokuthambisa, elinokwenza i-wall putty isebenze kakuhle.
3. Ingaba ukuthontsiza kwe-wall putty kunxulumene ne-HPMC?
Ukuwa kwe-wall putty kuxhomekeke kakhulu kumgangatho we-ash calcium, kodwa kungekhona kwi-HPMC. Ukuba umxholo we-calcium we-ash calcium kunye nomlinganiselo we-CaO kunye ne-Ca(OH)2 kwi-ash calcium akulunganga, kuya kubangela ukulahleka komgubo. Ukuba inento yokwenza ne-HPMC, ukugcinwa kwamanzi okungalunganga kwe-HPMC kuya kubangela nokuwa komgubo.
4. Ingakanani i-hydroxypropyl methyl cellulose (HPMC) kwi-wall putty?
Ubungakanani be-HPMC esetyenziswayo kwiindlela zokwenyani buyahluka ngokuxhomekeke kwimozulu, ubushushu, umgangatho we-calcium yomlotha wendawo, ifomula ye-wall putty, kunye "nomgangatho ofunekayo kubathengi". Ngokubanzi, phakathi kwe-4 kg kunye ne-5 kg. Umzekelo: i-Beijing wall putty uninzi lwayo yi-5 kg; iGuizhou uninzi lwayo yi-5 kg ehlotyeni kunye ne-4.5 kg ebusika; iYunnan incinci, idla ngokuba yi-3 kg ukuya kwi-4 kg njalo njalo.
5. Ithini i-viscosity efanelekileyo ye-hydroxypropyl methyl cellulose (HPMC)?
I-wall putty ngokubanzi yi-100,000, kodwa i-mortar ifuna kakhulu, kwaye ithatha i-150,000 ukusebenza. Ngaphezu koko, eyona ndima ibalulekileyo ye-HPMC kukugcinwa kwamanzi, kulandele ukuqina. Kwi-wall putty, lo gama nje ukugcinwa kwamanzi kulungile, i-viscosity iphantsi (70-80,000), kunokwenzeka, ewe, i-viscosity iphezulu, kwaye ukugcinwa kwamanzi kungcono. Xa i-viscosity idlula i-100,000, i-viscosity ayinampembelelo ekugcinweni kwamanzi.
6. Ungayikhetha njani i-hydroxypropyl methylcellulose (HPMC) efanelekileyo ngeenjongo ezahlukeneyo?
Ukusetyenziswa kwe-wall putty: imfuneko iphantsi, i-viscosity yi-100,000, kwanele, into ebalulekileyo kukugcina amanzi engcono. Ukusetyenziswa kwe-mortar: iimfuno eziphezulu, i-viscosity ephezulu, ingcono kune-150,000, ukusetyenziswa kweglu: iimveliso ezinyibilikayo ngokukhawuleza, i-viscosity ephezulu.
7. Ukusetyenziswa kwe-HPMC kwi-wall putty, yintoni ebangela ukuba i-wall putty ivelise amaqamza?
I-HPMC idlala indima ezintathu kwi-wall putty: ukuqina, ukugcinwa kwamanzi kunye nokwakhiwa. Musa ukuthatha inxaxheba kuyo nayiphi na impendulo. Izizathu zamaqamza:
(1) Kufakwa amanzi amaninzi kakhulu.
(2) Umaleko ongaphantsi awomileyo, kwaye kukho omnye umaleko okhuhla kuwo, okulula ukuwufaka igwebu.
Ixesha lokuthumela: Jan-07-2022