Udaka olomile, owaziwa nangokuthi i-wall putty, ingxube esetshenziselwa ukwenza bushelelezi kanye nezindonga zangaphakathi nezangaphandle ngaphambi kokupenda.Enye yezingxenye ezibalulekile zodaka olomile i-hydroxypropyl methylcellulose (HPMC), esebenza njenge-thickener ne-binder.Lapho ukhiqiza i-putty powder dry mortar, ukukhetha okulungile kwe-viscosity ye-HPMC kubaluleke kakhulu ukuqinisekisa ikhwalithi yomkhiqizo wokugcina.
I-HPMC i-cellulose ether, elungiswa ngokwelapha i-cellulose nge-alkali bese isabela nge-methyl chloride ne-propylene oxide.I-HPMC iwumsebenzi oguquguqukayo ovame ukusetshenziswa ezinhlotsheni zezinhlelo zokusebenza, okuhlanganisa embonini yezokwakha ukukhiqizwa kwe-putty dry mortars.I-HPMC ithuthukisa ukusebenza kwe-putty powder dry mortar ngokuthuthukisa ukugcinwa kwayo kwamanzi, ukusebenza kahle kanye nokusebenza kokubopha.
I-viscosity ye-HPMC iyisici esiyinhloko sokunquma ukusebenza kwe-putty powder dry mortar.I-viscosity isilinganiso sokumelana koketshezi ukugeleza, ngokuvamile kuvezwa nge-centipoise (cP).I-HPMC itholakala kuma-viscosities asukela ku-100 cP kuya ku-150,000 cP futhi, kuye ngohlelo lokusebenza, amabanga ahlukene e-HPMC ayatholakala ngama-viscosity ahlukahlukene.
Lapho ukhiqiza i-putty powder dry mortar, ukukhethwa kwe-viscosity ye-HPMC kufanele kuncike ezintweni eziningana, njengemvelo yezinye izithako, ukufana kodaka olufunayo, kanye nezimo zemvelo.Ngokuvamile, ama-viscosity aphezulu ama-HPMC asetshenziselwa udaka olushubile futhi olusindayo, kuyilapho ama-HPMCs ane-viscosity ephansi asetshenziselwa udaka oluncane futhi olulula.
Enye yezinzuzo eziyinhloko zokusebenzisa i-HPMC ku-putty dry mortars yikhono layo lokwandisa ukugcinwa kwamanzi.I-HPMC imunca futhi igcine umswakama, okusiza ukuvimbela udaka ukuthi lome ngokushesha.Lokhu kubaluleke kakhulu ezindaweni ezishisayo, ezomile, njengoba udaka lungoma ngokushesha, okuholela ekuqhekekeni kanye nokunamathela okubi.Ama-HPMC e-viscosity ephakeme ayakwazi ukugcina amanzi amaningi, okuwenza afaneleke kakhulu ukusetshenziswa ezimeni ezomile.
Enye impahla ebalulekile ye-HPMC yikhono layo lokuthuthukisa ukusebenza kahle.I-HPMC isebenza njengesithambiso, okwenza kube lula ukuthi udaka lusakazeke futhi lunciphise umzamo odingekayo ukuze kuzuzwe indawo ebushelelezi.Ama-HPMC e-viscosity ephansi ngokuvamile asetshenziselwa ukucutshungulwa kalula, kuyilapho ama-viscosity aphezulu ama-HPMC asetshenziselwa izinhlelo zokusebenza eziyinselele.
Ngaphezu kokugcinwa kwayo kwamanzi nokusebenza kwayo, i-HPMC ingaphinde ithuthukise ukusebenza kwesibopho se-putty powder dry mortar.I-HPMC ihlinzeka ngesibopho esiqinile phakathi kodaka nendawo ependwe phezu kwayo, iqinisekisa ukuthi udaka luhlala endaweni futhi aluqhekeki noma aluphehli.Ukukhethwa kwe-viscosity ye-HPMC kuzoba nomthelela ezingeni lokunamathela elihlinzekwa udaka, ngama-viscosity aphezulu ama-HPMC ngokuvamile ahlinzeka ngokunamathela okungcono.
Ngokuvamile, ukukhethwa kwe-viscosity ye-HPMC kuwukucatshangelwa okubalulekile lapho ukhiqiza i-putty powder dry mortar, futhi kufanele yenziwe ngokuvumelana nezicelo ezithile kanye nezimo zemvelo.Ngokukhetha ibanga elilungile le-HPMC, ukugcinwa kwamanzi, ukusebenza kanye nezakhiwo zokubopha zodaka zingathuthukiswa, kuqinisekiswe ukuqedwa kwekhwalithi ephezulu.Ngokukhetha okulungile kwe-viscosity ye-HPMC, kungenzeka ukukhiqiza i-putty mortar eyomile yekhwalithi engaguquki engasetshenziswa kalula nangempumelelo ezinhlelweni ezihlukahlukene zokwakha.
Isikhathi sokuthumela: Jul-28-2023