Ukusetshenziswa kweHydroxypropyl Methylcellulose eGypsum

IHydroxypropyl Methylcellulose (HPMC)iyisengezo esivame ukusetshenziswa ezintweni zokwakha, ikakhulukazi emikhiqizweni esekwe ku-gypsum. I-HPMC inokugcinwa kahle kwamanzi, ukujiya, ukuthambisa nokunamathela, okuyenza ibe ingxenye ebalulekile emikhiqizweni yegypsum.

1. Iqhaza le-HPMC ku-gypsum

Ukuthuthukisa ukugcinwa kwamanzi

I-HPMC inezindawo ezinhle kakhulu zokumunca amanzi kanye nokugcina amanzi. Ngesikhathi sokusetshenziswa kwemikhiqizo ye-gypsum, ukwengeza inani elifanele le-HPMC kungabambezela ngempumelelo ukulahleka kwamanzi, kuthuthukise ukusebenza kwe-gypsum slurry, kugcine kumanzi isikhathi eside ngesikhathi sokwakhiwa, futhi kugweme ukuqhekeka okubangelwa ukuhwamuka okusheshayo kwamanzi.

Ukuthuthukisa ukunamathela kanye nezakhiwo zokulwa nokuncipha

I-HPMC inikeza i-gypsum slurry ukunamathela okuhle, ukuyivumela ukuthi ibambelele ngokuqinile ezindongeni noma kwamanye ama-substrates. Okwezinto ze-gypsum ezakhiwe endaweni eqondile, umphumela wokujiya we-HPMC unganciphisa ukuhlehla futhi uqinisekise ukufana nokuhlanzeka kokwakhiwa.

Thuthukisa ukusebenza kokwakha

I-HPMC yenza i-gypsum slurry ibe lula ukuyisebenzisa futhi isabalale, ithuthukisa ukusebenza kahle kokwakhiwa, futhi yehlise udoti wezinto ezibonakalayo. Ngaphezu kwalokho, kunganciphisa nokungqubuzana ngesikhathi sokwakha, kwenze kube lula futhi kube bushelelezi kubasebenzi bokwakha.

Thuthukisa ukumelana nokuqhekeka

Ngesikhathi senqubo yokuhlangana kwemikhiqizo ye-gypsum, ukuhwamuka okungalingani kwamanzi kungabangela ukuqhekeka komhlaba. I-HPMC yenza i-gypsum hydration ifane kakhulu ngokusebenza kwayo okuhle kakhulu kokugcinwa kwamanzi, ngaleyo ndlela yehlisa ukwakheka kwemifantu futhi ithuthukise ikhwalithi yonkana yomkhiqizo oqediwe.

Ithonya ngesikhathi coagulation

I-HPMC inganweba ngokufanelekile isikhathi sokusebenza se-gypsum slurry, ivumele abasebenzi bokwakha ukuthi babe nesikhathi esanele sokulungisa nokusika, futhi igweme ukwehluleka ukwakha ngenxa yokuhlangana ngokushesha kwegypsum.

2. Ukusetshenziswa kwe-HPMC emikhiqizweni ehlukene ye-gypsum

I-Gypsum plastering

Ezintweni zokuplasta nge-gypsum, umsebenzi oyinhloko we-HPMC ukuthuthukisa ukugcinwa kwamanzi nokuthuthukisa ukusebenza kokwakhiwa, ukuze i-gypsum ikwazi ukunamathela kangcono odongeni, ukunciphisa ukuqhekeka, nokuthuthukisa ikhwalithi yokwakha.

I-Gypsum putty

I-HPMC ingathuthukisa ukuthambisa nokushelela kwe-putty, kuyilapho ithuthukisa ukunamathela, ikwenze ifaneleke kakhulu ukuhlobisa okuhle.

Ibhodi le-Gypsum

Ekukhiqizweni kwebhodi le-gypsum, i-HPMC isetshenziselwa kakhulu ukulawula izinga lokugeleza kwamanzi, ukuvimbela ibhodi ukuthi lome ngokushesha, ithuthukise ikhwalithi yomkhiqizo oqediwe, futhi ithuthukise ukumelana kwayo nokuqhekeka.

Gypsum self-leveling

I-HPMC ingadlala indima eqinisayo ezintweni zokuzilinganisa ze-gypsum, iyinikeze uketshezi olungcono kanye nokuzinza, igweme ukuhlukaniswa kanye nenhlabathi, kanye nokwenza ngcono ukusebenza kahle kokwakhiwa.

3. Isetshenziswa kanjani i-HPMC

Ikakhulukazi kunezindlela ezilandelayo zokwengeza i-HPMC emikhiqizweni ye-gypsum:
Ukuxuba okuqondile okomile: Xuba i-HPMC ngokuqondile nezinto ezomile njengempushana ye-gypsum, bese wengeza amanzi futhi ugovuze ngokulinganayo ngesikhathi sokwakha. Le ndlela ilungele imikhiqizo ye-gypsum exutshwe ngaphambili, njenge-gypsum putty kanye nezinto zokunamathisela.

Engeza ngemva kokuhlakazwa kwangaphambilini: Chaza i-HPMC emanzini wenze isixazululo se-colloidal kuqala, bese uyengeza ku-gypsum slurry ukuze ihlakazeke kangcono futhi incibilike. Ifanele imikhiqizo enezidingo ezithile zenqubo ekhethekile.

4. Ukukhethwa nokulawulwa komthamo we-HPMC

Khetha i-viscosity efanele

I-HPMC inamamodeli ahlukene e-viscosity, futhi i-viscosity efanele ingakhethwa ngokuya ngezidingo ezithile zemikhiqizo ye-gypsum. Isibonelo, i-HPMC ene-viscosity ephezulu ifanele ukukhulisa ukunamathela kanye nokulwa nokugoqa, kuyilapho i-HPMC ene-viscosity ephansi ifaneleka kakhulu ezintweni ze-gypsum ezinoketshezi oluphakeme.

Ukulawula okunengqondo kwenani lokwengeza

Inani le-HPMC elengeziwe ngokuvamile liphansi, ngokuvamile liphakathi kuka-0.1% -0.5%. Ukwengeza ngokweqile kungase kuthinte isikhathi sokusetha namandla okugcina e-gypsum, ngakho-ke kufanele ilungiswe ngokunengqondo ngokuvumelana nezici zomkhiqizo kanye nezidingo zokwakha.

I-Hydroxypropyl methylcelluloseidlala indima ebalulekile ezintweni ezisekelwe ku-gypsum. Akugcini nje ukuthuthukisa ukugcinwa kwamanzi nokusebenza kokwakhiwa, kodwa futhi kuthuthukisa ukunamathela nokumelana nokuqhekeka, okwenza imikhiqizo ye-gypsum izinze futhi ihlale isikhathi eside. Ukukhetha okunengqondo nokusetshenziswa kwe-HPMC kungathuthukisa kakhulu ikhwalithi yemikhiqizo ye-gypsum futhi kuhlangabezane nezidingo ezahlukahlukene zokwakha.