Umphumela we-HPMC ngokuqina kukaGypsum Data

Njengezinto ezisetshenziswa kabanzi embonini yezokwakha, udaka lwe-gypsum luvunyelwa ukufakwa kwalo okuhle kakhulu, ukufakwa komsindo, ukuvikelwa kwemvelo nezinye izakhiwo. Kodwa-ke, udaka lwe-gypsum luvame ukubhekana nezinkinga zokuqina ngesikhathi sokusebenzisa, njengokuqhekeka nokukhonkotha, okungagcini nje ngokuthinta ama-aesthetics alo, kodwa futhi kuthinta impilo yenkonzo yephrojekthi. Ukuze uthuthukise ukuqina koDypsum Data, abacwaningi abaningi bazamile ukwenza ngcono ukusebenza kwayo ngokulungisa lokho okuqukethwe. Phakathi kwazo, i-hydroxypropyl methylcellulose (HPMC), njenge-cellulose ether ye-cellulose ether, isetshenziswe kabanzi ngodaka lwe-gypsum ukwenza ngcono ukusebenza kokwakha nokuqina kodaka.

1. Izici eziyisisekelo ze-HPMC
I-HPMC ingukususelwa kwe-cellulose, enamanzi amahle e-solubity, ukuqina nokunamathela ngezakhiwo ngokuguqulwa kwamakhemikhali. Isakhiwo saso samangqamuzana siqukethe ama-hydroxypropyl kanye namaqembu we-methyl, ukuvumela ukuthi kwakhiwe isixazululo esizinzile se-colloidal emanzini. I-HPMC ivame ukusetshenziswa ezintweni zokwakha, ikakhulukazi engeza i-HPMC ku-gypsum udaka, udaka oluhlaza, udaka olungathuthukisa kakhulu ukusebenza kwalezi zinto zokwakha.

2. Umphumela we-HPMC ekusebenzeni kokwakhiwa kodaka lwe-gypsum
Ukusebenza kokwakha kodaka lwe-gypsum kungenye yezinto ezibalulekile ekuweni kwayo. Ukusebenza okuhle kokwakhiwa kunganciphisa ukungalingani ngesikhathi sokwakha, kuthuthukise ukusebenza kokwakha, futhi kuqinisekiswe ukuhlanganiswa kwesendlalelo sodaka, ngaleyo ndlela kuthuthukise ukuqina kwayo. Njengomenzeli omkhulu kanye no-ejenti wokugcina amanzi, i-HPMC idlala indima ebalulekile ku-gypsum ngodaka:

Umphumela Wokuqina

Ukugcinwa kwamanzi: I-HPMC inokugcinwa kwamanzi okuhle, okungabambezela ngempumelelo ukuhwamuka kwamanzi ku-gypsum udaka, kwandise isikhathi sokuvula sodaka, futhi kwenze kube lula ukufaka isicelo nokokwakha ngesikhathi sokwakha. Lokhu kusiza ukunciphisa izinkinga zokuqhekeka okubangelwa ukuhwamuka okusheshayo kwamanzi ngesikhathi sokwakha, ngaleyo ndlela kuthuthukise ukuhlangana nokuqina okuqinile kongqimba lwesidakamizwa.

I-3. Umphumela we-HPMC ngokuqina kukaGypsum Data
Ukuqina kungenye yezinkomba ezibalulekile zeGypsum Data, ezihlobene ngqo nempilo yayo yensizakalo kumaphrojekthi wangempela. Ukuqina kukaGypsum ngodaka kuthinteka kakhulu yizici eziningi ezifana nomswakama, izinguquko ekushiseni nasemandleni angaphandle. Ukungezwa kwe-HPMC kuthuthukisa ukuqina kodaka lwe-gypsum ngalezi zindlela ezilandelayo:

3.1 Ukuthuthukisa Ukumelana Kokuqhekeka
Ku-gypsum udaka, imifantu ingenye yezinto ezibalulekile ezithinta ukuqina. Ukuhanjiswa okusheshayo kwamanzi odongeni noma umjikelezo omanzi omile kuzodala imifantu emincane ebusweni nasengaphakathi kodaka. Umphumela wokugcina amanzi we-HPMC anganciphisa ngempumelelo ukuhwamuka kwamanzi futhi avikele ukoma komhlaba, ngaleyo ndlela anciphise ukwenzeka kwemifantu. Ngasikhathi sinye, umphumela wokuqina we-HPMC angaphinde athuthukise ukunamathela kodaka, athuthukise ukuqina okuphelele kongqimba wodaka, futhi anciphise izehlakalo zokufakelwa.

3.2 Thuthukisa ukumelana nokungena
UGentar uGypsum uvame ukuvezwa ezindaweni ezinomswakama ngesikhathi sokusetshenziswa kwangempela. Uma ukuvalwa kwalo kwamanzi kuqine kakhulu, umswakama ngaphakathi kodaka uzokhuphuka kancane kancane, okuphumela ekuvuvukeni, ukukhonkotha kanye nezinye izinto. Ukungezwa kwe-HPMC kungathuthukisa ukumelana nakusilo kodaka futhi kunciphise ukuguguleka kwesakhiwo sangaphakathi sodaka lwamanzi. Ukugcinwa kwamanzi okuthuthukisiwe kwenza udaka ukuze alondoloze kangcono ukuqina kwesakhiwo futhi agweme ukonakala kokusebenza okubangelwa ukungena komswakama.

3.3 Thuthukisa ukumelana kwe-freeze-thaw
UGentar udaka uvame ukusetshenziswa ezindongeni ezingaphandle noma kwezinye izindawo ezithintwe kakhulu ngoshintsho lwesimo sezulu, oludinga ukuthi udaka lube nokumelana okuthile kokuqhwa nokuncipha. Ezifundeni ezibandayo, imiphumela ephindaphindwayo yokuqanda nokuncipha ingadala kalula udaka ukuba uqhekeke. I-HPMC ingathuthukisa ukwakheka kodaka futhi yandise ukuqina kwayo, ngaleyo ndlela ithuthukise ukumelana kwayo kwe-free-thaw. Ngokunciphisa ukunqwabelana komswakama, i-HPMC yehlisa umonakalo odalwe ukwanda komswakama ngesikhathi semijikelezo ye-freeze-thaw.

3.4 Thuthukisa ukusebenza okulwa nokuguga
Ngokuhamba kwesikhathi, amandla nokuqina kodaka lwe-gypsum kuzokwehla kancane. Ukungezwa kwe-HPMC kungabambezela inqubo yokuguga ngokwenza ngcono i-misfructure yodaka. Ama-molecule we-HPMC angakha ifilimu evikelayo ukuze anciphise ukulimala okuqondile endaweni yodaka kusuka ezindaweni zangaphandle (njenge-ultraviolet rays, ngaleyo ndlela kuthuthukise amandla ayo okulwa nokuguga.

I-4. Ukusetshenziswa kwe-HPMC nokusebenza kahle kokusebenza
Yize i-HPMPC idlala indima enkulu ekwenzeni ngcono ukuqina kodaka lwe-gypsum, ukusetshenziswa kwalo nakho kudinga ukulinganisela. Ukungezwa ngokweqile kwe-HPMC kungadala ukuthi udaka lube ne-viscous, elithinta ukusebenza kokwakha, futhi lungaba nemiphumela emibi ngesikhathi sokusetshenziswa kwesikhathi eside. Ngakho-ke, kuzinhlelo zokusebenza ezisebenzayo, kuvame ukudingekile ukwenza ukusetshenziswa kwe-HPMC ngokuya ngefomula yodaka ethile nezidingo zokwakha. Ngokuvamile, kulungile ukulawula ukusetshenziswa kwe-HPMC phakathi kuka-0.2% no-1%.

Njengesengezo esijwayelekile esiguqula, i-HPMC inomthelela omuhle ekuqukalweni kodaka lwe-gypsum. Akunakuthuthukisa ukusebenza kodaka kuphela, ukunweba isikhathi sokuvula futhi kuthuthukise ikhwalithi yokwakha, kepha futhi kuthuthukisa ukumelana nokuqhekeka, ukumelana nokuphikiswa okukhulayo kanye nokumelana nokugula okukhulu kakhulu kodaka, Kuzinhlelo zokusebenza ezingokoqobo, ngokulawula inani le-HPMC elingeziwe, ukusebenza okuphelele koGresum Gotar kungalungiswa ngempumelelo futhi izinto zokwakha ezihlala isikhathi eside nezizinzile zingahlinzekwa embonini yezokwakha.