IHydroxypropyl methylcellulose (HPMC) iyi-polymer eguquguqukayo esetshenziswa ezimbonini ezahlukahlukene, kubandakanya nezokwakha. Emkhakheni we-gypsum plaster, i-HPMC inokusetshenziswa okuningana futhi idlala indima ebalulekile ekwenzeni ngcono ukusebenza kanye nekhwalithi yokhonkolo.
Funda nge-Hydroxypropyl Methylcellulose (HPMC):
1. Isakhiwo samakhemikhali kanye nezakhiwo:
I-HPMC iyi-semi-synthetic i-polymer encibilika emanzini etholakala ku-cellulose.
Inezici eziyingqayizivele ezifana nokugcinwa kwamanzi, ikhono lokuqina kanye nekhono lokwenza ifilimu.
Isakhiwo samakhemikhali se-HPMC sihlanganisa i-hydroxypropyl namaqembu e-methoxy, anikeza izici ezithile ze-polymer.
2. Inqubo yokukhiqiza:
Inqubo yokukhiqiza ibandakanya ukufakwa kwe-cellulose etherification, okuholela ekwakhekeni kwe-HPMC.
Izinga lokushintshwa kwe-hydroxypropyl kanye namaqembu e-methoxy lingalungiswa ukuze lithinte izakhiwo ze-polymer.
Ukusetshenziswa kwe-gypsum plaster:
1. Ukugcinwa kwamanzi:
I-HPMC isebenza njenge-ejenti egcina amanzi ekwenziweni kwe-gypsum.
Kuyasiza ukulawula okuqukethwe komswakama, kuvimbela ukoma ngokushesha futhi kuqinisekise ukugeleza okufanayo kwezinhlayiya ze-gypsum.
2. Thuthukisa ukusebenza:
Ukwengezwa kwe-HPMC kuthuthukisa ukusebenza kwe-gypsum plaster.
Inikeza ingxube ye-plaster ukuvumelana okubushelelezi futhi okukhilimu okwenza kube lula ukusabalala phezulu.
3. Thickener:
Njenge-ejenti yokuqina, i-HPMC isiza ukukhulisa i-viscosity yengxube ye-gypsum.
Lokhu kusiza ngokunamathela okungcono ezindaweni eziqondile futhi kunciphisa ukuhlehla ngesikhathi sokufaka isicelo.
4. Setha ukulawula isikhathi:
I-HPMC ithinta isikhathi sokusetha se-gypsum.
Umthamo ofanelekile uvumela isikhathi sokusetha ukuthi silungiswe ukuze sihlangabezane nezidingo ezithile zephrojekthi.
5. Thuthukisa ukunamathela:
Izakhiwo zefilimu ze-HPMC zithuthukisa ukunamathela kwe-gypsum plaster kuma-substrates ahlukahlukene.
Lokhu kwenza isiphetho se-plaster siqine futhi sithathe isikhathi eside.
6. Ukumelana nokuqhekeka:
I-HPMC isiza ukuthuthukisa amandla kanye nokuvumelana nezimo kwabalingisi.
I-polymer isiza ekunciphiseni ubungozi bokuqhekeka, inikeze indawo eqinile futhi ebukeka kahle.
7. Ukuhambisana nezinye izithasiselo:
I-HPMC inokusebenzisana okuhle nezinye izithasiselo ezivame ukusetshenziswa ekwakhiweni kwe-gypsum.
Lokhu kuvumela ukwakhiwa kwezingxube ze-plaster ezenziwe ngezifiso ngokusekelwe ezidingweni ezithile zephrojekthi.
Amazinga Ekhwalithi Nemihlahlandlela:
1. Amazinga womkhakha:
I-HPMC ye-plaster inamathela kumazinga nemithetho yemboni.
Izinyathelo zokulawula ikhwalithi ziqinisekisa ukusebenza okungaguquki nokwethembeka.
2. Izincomo zomthamo:
Abakhiqizi bahlinzeka ngemihlahlandlela yemithamo ngokusekelwe ezidingweni ezithile zokwakhiwa kwe-gypsum.
Isilinganiso esifanele sibalulekile ukuze kuzuzwe izakhiwo ezifiselekayo ngaphandle kokuyekethisa ukusebenza.
IHydroxypropyl methylcellulose (HPMC) iyisithako esibalulekile ekwakhiweni kwe-gypsum, esiza ukuthuthukisa ukugcinwa kwayo kwamanzi, ukusebenza kahle, ukunamathela kanye nokusebenza kukonke. Njengoba imboni yezokwakha iqhubeka nokuthuthuka, indima ye-HPMC ekwenzeni ngcono ikhwalithi nokusebenza kahle kwe-gypsum plaster isalokhu ibalulekile. Ngokuqonda izakhiwo zamakhemikhali kanye nokusetshenziswa kwe-HPMC, ochwepheshe bemboni yezokwakha bangenza izinqumo ezinolwazi ukuze bathole imiphumela engcono kakhulu kumaphrojekthi wabo wokuplasta.
Isikhathi sokuthumela: Jan-18-2024