Ukusetshenziswa kwe-hydroxypropylm methylcellulose ku-gypsum

I-Hydroxypropyl methylcellulose (HPMC)Ingabe isengezo esivame ukusetshenziswa ezintweni zokwakha, ikakhulukazi emikhiqizweni esekwe ku-gypsum. I-HPMC inokugcinwa kwamanzi okuhle, ukuqina, i-lubring kanye nokunamathela, okwenza kube yingxenye ebaluleke kakhulu emikhiqizweni ye-gypsum.

1. Iqhaza le-HPMC ku-Gypsum

Ukuthuthukisa Ukugcinwa Kwamanzi

I-HPMC inokutholwa okuhle kakhulu kwamanzi kanye nezakhiwo zokugcina amanzi. Ngesikhathi sokusetshenziswa kwemikhiqizo ye-gypsum, engeza inani elifanele le-HPMC lingabambezela ngempumelelo ukulahlekelwa kwamanzi, lithuthukise ukusebenziseka kwe-gypsum slurry, ligcine umswakama isikhathi eside ngesikhathi sokwakha, futhi ugweme ukuqhekeka okubangelwa ukuhwamuka okusheshayo kwamanzi.

Ukuthuthukisa Ukunamathela Nezakhiwo ezi-Anti-Sagging

I-HPMC inika i-gypsum slurry enhle, isivumela ukuba sinamathele ngokuqinile ezindongeni noma kwezinye izigatshana. Ngezinto zokwenziwa ze-gypsum ezakhiwe ezindaweni ezibheke mpo, umphumela wokuqina we-HPMC anganciphisa ukugcwala futhi aqinisekise ukufana nokucoceka kokwakhiwa.

Thuthukisa ukusebenza kokwakha

I-HPMC yenza ukuthi i-gypsum slurry ibe lula ukusebenzisa futhi yasakazeka, ithuthukise ukusebenza kahle kokwakha, futhi yehlise imfucuza yezinto ezibonakalayo. Ngaphezu kwalokho, kunganciphisa futhi ukungqubuzana ngesikhathi sokwakha, okwenza kube lula futhi kubushelelezelele abasebenzi abazokwakha ukuze basebenze.

Thuthukisa ukumelana nokuqhekeka

Ngesikhathi senqubo yokuhlangana yemikhiqizo ye-gypsum, ukuhwamuka kwamanzi okungalingani kungadala ukuqhekeka komhlaba. I-HPMC yenza i-gypsum hydration iyunifomu ngokwengeziwe ngokusebenza kwayo okuhle kakhulu kokugcina amanzi, ngaleyo ndlela kunciphise ukwakheka kwemifantu kanye nokwenza ngcono ikhwalithi ephelele yomkhiqizo ophelile.

Ithonya ngesikhathi sokuhlangana

I-HPMC inganweba ngokufanele isikhathi esisebenzayo se-gypsum slurry, evumela abakwaConculisweni ukuthi babe nesikhathi esanele sokujwayela futhi banciphise, futhi bagweme ukwehluleka kokwakha ngenxa yokuncipha okusheshayo kwe-gypsum.

2. Ukusetshenziswa kwe-HPMC emikhiqizweni ehlukene ye-Gypsum

Ukulungiswa kwe-gypsum

Ezintweni zokufaka ama-gypsum zokufaka, umsebenzi oyinhloko we-HPMC ukuthuthukisa ukugcinwa kwamanzi futhi uthuthukise ukusebenza kokwakha, ukuze i-gypsum ingakwazi ukunamathela ku-Wall, inciphise ukuqhekeka, futhi ithuthukise ikhwalithi yokwakha.

Gypsum putty

I-HPMC ingathuthukisa ukugcotshwa nokubusheleleka kwe-putty, ngenkathi kuthuthukisa ukunamathela, okwenza kube lula kakhulu umhlobiso omuhle.

Ibhodi le-gypsum

Ku-Gypsum Board Production, i-HPMC isetshenziselwa ikakhulukazi ukulawula isilinganiso se-hydration, vikela ibhodi ekusomisweni ngokushesha okukhulu, ngcono ikhwalithi yomkhiqizo ophelile, futhi uthuthukise ukumelana kwayo kokuqhekeka.

Gypsum ukuzimela

I-HPMC ingadlala indima enkulu ezintweni zokwakha ze-gypsum zokuzimela, inikeze i-fluidity kanye nokuqina, ukugwema ukuhlukaniswa kanye nokuqunjelwa, kanye nokwenza ngcono ukusebenza kokwakha.

3. Isebenzisa kanjani i-HPMC

Kunezindlela ezilandelayo zokungeza i-HPMC kwimikhiqizo ye-Gypsum:
Qondisa ukuxuba okusomile: Hlanganisa i-HPMC ngqo ngezinto zomile ezifana ne-gypsum powder, bese wengeza amanzi bese uvusa ngokulinganayo ngesikhathi sokwakha. Le ndlela ilungele imikhiqizo ye-gypsum exubile, efana ne-gypsum putty kanye nezinto zokwakha.

Ngeza ngemuva kokuchithwa kwangaphambili: Dissolve HPMC emanzini kwikhambi le-colloidal kuqala, bese ulifaka ku-gypsum slurry ukuze uhlakazeke kangcono nokuchithwa. Ilungele imikhiqizo enezidingo ezithile zenqubo ezikhethekile.

4. Ukukhethwa kanye nokulawulwa komthamo kwe-HPMC

Khetha ukubonakala okufanele

I-HPMC inamamodeli ahlukile we-viscosity, futhi ukubonwa okufanele kungakhethwa ngokuya ngezidingo ezithile zemikhiqizo ye-gypsum. Isibonelo, i-HPMC ephezulu ye-HPMC ilungele ukunamathela okwandayo nokulwa nokuhlanza, ngenkathi i-HPMC ephansi ilungele izinto ze-gypsum ezinobunzima obunamandla.

Ukulawulwa okunengqondo kwenani lokungezwa

Inani le-HPMC elingeziwe livame ukuphansi, ngokuvamile phakathi kuka-0.1% -0.5%. Ukwengezwa ngokweqile kungathinta isikhathi sokusetha namandla okugcina we-gypsum, ngakho-ke kufanele kulungiswe ngokufanele ngokwezimpawu zomkhiqizo kanye nezidingo zokwakha.

Hydroxypropyl methylcelluloseIdlala indima ebalulekile ezintweni ezisekelwa yi-gypsum. Akugcini nje ngokuthuthukisa ukusebenza kwamanzi nokusebenza kwamanzi, kepha futhi kuthuthukisa ukumelana nokuqhekeka kokuqhekeka, okwenza imikhiqizo ye-gypsum izinzile futhi ihlala isikhathi eside. Ukukhetha okunengqondo nokusetshenziswa kwe-HPMC kungathuthukisa kakhulu ikhwalithi yemikhiqizo ye-gypsum futhi uhlangane nezidingo ezahlukahlukene zokwakha.