Ukusetshenziswa kwe-HPMC ku-gypsum-based plaster kanye nemikhiqizo ye-gypsum

I-Hydroxypropyl methylcellulose (HPMC) iyisengezo esisebenza kahle kakhulu esisetshenziswa kakhulu ezintweni zokwakha, ikakhulukazi ekukhiqizeni ama-plaster asekelwe ku-gypsum kanye nemikhiqizo ye-gypsum.

(1) Izakhiwo eziyisisekelo ze-HPMC

I-HPMC i-nonionic cellulose ether etholakala ngokusabela kwe-methylation kanye ne-hydroxypropylation. Izici zayo eziyinhloko zihlanganisa ukuncibilika kwamanzi okuphezulu, izakhiwo ezinhle kakhulu zokuqina, izakhiwo zamakhemikhali ezizinzile kanye nezakhiwo ezinhle zokwenza ifilimu. Lezi zakhiwo zenza i-HPMC isetshenziswe kabanzi ezintweni zokwakha.

(2) Ukusetshenziswa kwe-HPMC kuplasta osuselwe ku-gypsum

1. Umsebenzi we-ejenti yokuqina

Ku-plaster osekelwe ku-gypsum, i-HPMC isetshenziswa kakhulu njenge-ejenti yokuqina. Izakhiwo zayo ezinhle zokuncibilika kwamanzi kanye nokujiya zingathuthukisa kakhulu i-viscosity nokuzinza kwe-stucco, kuvimbele ukubola kanye nemvula, ngaleyo ndlela kuthuthukise ukusebenza kokwakhiwa kanye nekhwalithi yomkhiqizo ophelile.

2. Ukugcinwa kwamanzi

I-HPMC inokugcinwa kwamanzi okuhle kakhulu futhi inganciphisa ngempumelelo ukulahleka kwamanzi ngokushesha. Kumapulasi asekelwe ku-gypsum, le ndawo isiza ukunweba ukusebenza futhi ithuthukise imiphumela yokwakha ngenkathi ivimbela ukuqhekeka nokufinyeza okubangelwa ukuhwamuka okusheshayo kwamanzi.

3. Thuthukisa ukunamathela

I-HPMC ingathuthukisa ukunamathela phakathi kwe-plaster ne-substrate. Lokhu kungenxa yokuthi ifilimu eyakhiwe i-HPMC ngemva kokoma inezinga elithile lokuguquguquka nokunamathela, ngaleyo ndlela ithuthukise amandla okubopha phakathi kokhonkolo nodonga noma amanye ama-substrates futhi ivimbele ukuthi ingawi.

(3) Ukusetshenziswa kwe-HPMC emikhiqizweni ye-gypsum

1. Thuthukisa ukusebenza kokucubungula

Ekukhiqizeni imikhiqizo ye-gypsum, i-HPMC ingathuthukisa uketshezi nokufana kwe-slurry, inciphise ukukhiqizwa kwamabhamuza, futhi yenze umkhiqizo uminyene futhi ufane. Ngasikhathi sinye, umphumela wokujiya we-HPMC usiza ukwakha ukunamathela okubushelelezi ebusweni bomkhiqizo futhi uthuthukise ikhwalithi yokubukeka yomkhiqizo.

2. Thuthukisa ukumelana nokuqhekeka

Ukugcinwa kwamanzi kwe-HPMC emikhiqizweni ye-gypsum kusiza ukulawula izinga lokukhululwa kwamanzi futhi kunciphise ukucindezeleka kwangaphakathi okubangelwa ukuhwamuka kwamanzi okungalingani, ngaleyo ndlela kuthuthukisa ukumelana nokuqhekeka kanye namandla wonke omkhiqizo. Ikakhulukazi ezindaweni ezomile, umphumela wokugcina amanzi we-HPMC ubaluleke kakhulu futhi ungavimbela ngempumelelo ukuqhekeka kwangaphambi kwesikhathi kwemikhiqizo.

3. Thuthukisa izakhiwo zemishini

Inethiwekhi yefayibha esatshalaliswa ngokulinganayo eyakhiwe yi-HPMC emikhiqizweni yegypsum ingathuthukisa ukuqina kanye nomthelela wokumelana nemikhiqizo. Lesi sici senza imikhiqizo ye-gypsum ingathinteki kalula ekulimaleni ngesikhathi sokuthutha nokufakwa, okunweba impilo yabo yesevisi.

(4) Izinzuzo zohlelo lokusebenza lwe-HPMC

1. Ukuthuthukisa ukusebenza kahle kwesakhiwo

Ngenxa yokuthi i-HPMC ithuthukisa ukusebenza nokusebenza kokwakhiwa kwe-gypsum-based plaster kanye nemikhiqizo ye-gypsum, inqubo yokwakha ihamba kahle futhi isebenza kahle, inciphisa inani lokusetshenzwa kabusha nokulungiswa, ngaleyo ndlela ithuthukise ukusebenza kahle kokwakha kukonke.

2. Ukuvikelwa kwemvelo nokuphepha

Njengempahla yemvelaphi yemvelo, i-HPMC ayikhiqizi izinto eziyingozi phakathi nokukhiqizwa nokusetshenziswa kwayo, futhi ihlangabezana nezimfuneko zokuvikelwa kwemvelo nokuphepha. Ngaphezu kwalokho, i-HPMC ayiwakhiphi amagesi ayingozi ngesikhathi sokusetshenziswa, okwenza iphephe kubasebenzi bokwakha kanye nabasebenzisi bokugcina.

3. Izinzuzo zezomnotho

Ukusetshenziswa kwe-HPMC kungathuthukisa kakhulu ukusebenza kanye nekhwalithi yezinto ezisekelwe ku-gypsum, ngaleyo ndlela kunciphise udoti wezinto ezibonakalayo kanye nezindleko zokulungisa kabusha futhi kuthuthukise izinzuzo zezomnotho. Ngesikhathi esifanayo, ukusebenza kahle okuphezulu kwe-HPMC kwenza imiphumela ebalulekile izuzwe ngisho nangenani elincane lokwengeza, futhi inokusebenza okuhle kwezindleko.

Njengesengezo sezinto zokwakha ezibalulekile, i-HPMC inezinzuzo ezibalulekile ekusetshenzisweni kwayo ku-plaster osuselwa ku-gypsum kanye nemikhiqizo ye-gypsum. Ukuqina kwayo okuhle kakhulu, ukugcinwa kwamanzi kanye nezakhiwo zokubopha akugcini nje ukuthuthukisa ukusebenza kokwakhiwa kwezinto kanye nekhwalithi yomkhiqizo oqediwe, kodwa futhi kuthuthukisa izinzuzo zezomnotho nokusebenza kokuvikelwa kwemvelo. Njengoba isidingo semboni yezokwakha sokusebenza okuphezulu, izinto ezihambisana nemvelo zikhula, amathuba okusebenza kwe-HPMC ezintweni ezisekelwe ku-gypsum azokhula nakakhulu.