Ukukhetha i-viscosity efanele ye-Hydroxypropyl Methylcellulose (HPMC) yokukhiqiza i-putty powder dry mortar kubalulekile ekuqinisekiseni ukusebenza okuphelele nezici zokusetshenziswa komkhiqizo wokugcina. Lokhu kukhetha kuthinta izakhiwo eziningana, okuhlanganisa ukugcinwa kwamanzi, ukusebenza, ukunamathela, nesikhathi esivulekile. Nawu umhlahlandlela ophelele wokukusiza ukuthi uqonde futhi ukhethe i-viscosity efanele ye-HPMC yokukhiqiza kwakho udaka oluyimpuphu omile.
Ukuqonda i-HPMC
IHydroxypropyl Methylcellulose (HPMC) i-non-ionic cellulose ether eyenziwe nge-polymer cellulose yemvelo ngochungechunge lwezinqubo zamakhemikhali. Isebenza njenge-thickener, binder, ifilimu-yangaphambili, kanye ne-ejenti yokugcina amanzi ekwenziweni kodaka olomile.
Imisebenzi Esemqoka ye-HPMC ku-Dry Mortar
Ukugcina Amanzi: Iqinisekisa ukugeleza okwanele kukasimende nomcako, kukhuphula ukusebenza kahle kanye nokunciphisa ukuqhekeka.
Ukuqina: Kuthuthukisa i-viscosity, kube nomthelela ekusebenzeni okungcono nasekuzinzeni kodaka.
Ukunamathela: Kuthuthukisa amandla okubopha odaka kuma-substrates.
Ukusebenza kahle: Kuthinta ukusebenziseka kalula nokushelela kwesiphetho.
Isikhathi Sokuvula: Sandisa isikhathi lapho udaka luhlala lusebenza ngemva kokuxutshwa namanzi.
Izinto Okufanele Uzicabange Lapho Ukhetha I-HPMC Viscosity
Izidingo zohlelo lokusebenza:
I-Wall Putty: Idinga ibhalansi phakathi kokusebenza nokugcinwa kwamanzi. Ngokuvamile, i-viscosity emaphakathi i-HPMC (50,000 kuya ku-100,000 mPa.s) ifanelekile.
Izinamathiselo Zethayela: I-viscosity ephakeme (100,000 kuya ku-200,000 mPa.s) iyadingeka ukuze kunamathele kangcono kanye nokumelana nokushelela.
I-Skim Coat: I-viscosity ephansi ukuya emaphakathi (20,000 kuya ku-60,000 mPa.s) ukuze isetshenziswe kahle futhi iqedele.
Izimo Zemvelo:
Izinga Lokushisa Nomswakama: I-viscosity ephezulu ye-HPMC inganikeza ukugcinwa kwamanzi okungcono ezimweni ezishisayo nezomile, iqinisekise ukusebenza okude kanye nokunciphisa ukomisa ngaphambi kwesikhathi.
Izici ze-Base Material:
I-Porosity kanye ne-Absorption Rate: Kuma-substrates amunca kakhulu, i-viscosity ephakeme i-HPMC isiza ekugcineni umswakama isikhathi eside, ivimbele ukoma ngokushesha futhi iqinisekise ukunamathela okungcono.
Izici Zokusebenza Ezidingekayo:
Ukusebenza: I-viscosity ephezulu ye-HPMC inikeza ukungaguquguquki okukhulu, okungase kuthuthukise ukusakazeka kalula futhi kunciphise ukuwohloka.
Isikhathi Sokuvula: Isikhathi eside sokuvula siyathandeka ezinhlelweni ezinkulu noma izimo zezulu ezishisayo, ezifinyeleleka nge-viscosity ephezulu ye-HPMC.
I-Sag Resistance: I-viscosity ephakeme inikeza ukumelana okungcono kwe-sag, okubalulekile ekusetshenzisweni okuqondile.
Izinyathelo Ezisebenzayo Ekukhetheni I-HPMC Viscosity
Linganisa Uhlobo Lohlelo Lokusebenza:
Thola ukuthi umkhiqizo ungowe-wall putty, i-adhesive tile, noma i-skim coat.
Qonda izidingo ezithile ezifana nokugcinwa kwamanzi, ukunamathela, nesikhathi esivulekile.
Ukuhlolwa Kwelebhu:
Yenza izivivinyo ze-batch ezincane ngamaviscosity ahlukene we-HPMC ukuze ubuke ukusebenza.
Kala amapharamitha njengokugcinwa kwamanzi, ukusebenza, namandla okunamathela.
Lungisa Ngokusekelwe Emphumeleni:
Lungisa kahle ukukhetha kwe-viscosity ngokusekelwe emiphumeleni yokuhlolwa.
Qinisekisa ukuthi umkhiqizo wokugcina uhlangabezana nazo zonke izidingo zohlelo lokusebenza nokusebenza.
I-Viscosity Ejwayelekile Range yezinhlelo zokusebenza ezihlukene
I-Wall Putty: 50,000 kuya ku-100,000 mPa.s
Izinamathiselo Zethayela: 100,000 kuya ku-200,000 mPa.s
Amajazi e-Skim: 20,000 kuya ku-60,000 mPa.s
Umthelela we-Viscosity ekusebenzeni
I-Low Viscosity HPMC (<50,000 mPa.s): Ihlinzeka ngokusebenza okuhle nokusebenzisa kahle. Isebenza kancane ekugcineni amanzi kanye nokumelana nokucwila. Ifanele amajazi okuqeda amahle namajazi e-skim. I-Medium Viscosity HPMC (50,000 – 100,000 mPa.s): Ibhalansisa ukugcinwa kwamanzi nokusebenza. Ifanele izinhlelo zokusebenza ezijwayelekile ze-wall putty. Ithuthukisa ukunamathela kanye nesikhathi esivulekile ngokusesilinganisweni. I-High Viscosity HPMC (>100,000 mPa.s):
Ukugcinwa kwamanzi okuhle kakhulu kanye nezakhiwo zokunamathela.
Ukumelana nokucwila okungcono kanye nesikhathi esivulekile.
Ilungele okokunamathelisa amathayela nokusebenza okuphezulu kwe-putty.
Ukukhetha i-viscosity ye-HPMC efanele yokukhiqiza udaka lwe-putty powder kuyisinqumo esinezinhlangothi eziningi esithinta ukusebenza komkhiqizo kanye nokusebenziseka kwawo. Ngokucabangela izidingo zohlelo lokusebenza, izimo zemvelo, izici zempahla eyisisekelo, nezakhiwo zokusebenza ezifiselekayo, abakhiqizi bangakhetha ibanga elifanele le-HPMC. Ukuqhuba ukuhlolwa kwelebhu okuphelele kanye nokulungiswa kuqinisekisa ukuthi i-viscosity ekhethiwe ihlangabezana nezidingo ezithile zohlelo oluhlosiwe, okuholela kumkhiqizo wekhwalithi ephezulu, onokwethenjelwa.
Isikhathi sokuthumela: May-23-2024