ukoma ngokushesha
Lokhu kungenxa yokwengezwa ngokweqile kwempuphu ye-calcium yomlotha (inani lempuphu ye-calcium yomlotha esetshenziswa kufomula ye-putty lingancishiswa ngokufanele) kuhlobene nesilinganiso sokugcina amanzi se-hydroxypropyl methylcellulose, futhi kuhlobene nokoma kodonga.
Ukuhlubula nokugoqa
Lokhu kuhlobene nokuqukethwe okuphezulu kwe-calcium yomlotha noma izinga eliphansi lokugcinwa kwamanzi le-hydroxypropyl methylcellulose, okuvame ukwenzeka lapho i-viscosity ye-cellulose iphansi noma inani lokwengeza lincane.
Ukususa ufulawa we-wall putty powder yangaphakathi
Lokhu kuhlobene nenani lempuphu ye-calcium yomlotha engeziwe (inani lempuphu ye-calcium yomlotha kufomula ye-putty lincane kakhulu noma ubumsulwa bempuphu ye-calcium yomlotha buphansi kakhulu, futhi inani lempuphu ye-calcium yomlotha kufomula yempuphu ye-putty kufanele landiswe ngokufanele), futhi kuhlobene nokwengezwa kwe-cellulose Kukhona ubudlelwano phakathi kobuningi nekhwalithi, okubonakaliswa izinga lokugcina amanzi lomkhiqizo. Izinga lokugcina amanzi liphansi, futhi isikhathi sokusabela kwempuphu ye-calcium yomlotha (i-calcium oxide kumpuphu ye-calcium yomlotha ayiguqulwanga ngokuphelele ibe yi-calcium hydroxide) akwanele, okubangelwa.
ukuphuphuma
Lokhu kuhlobene nomswakama owomile kanye nokuba yisicaba kodonga, futhi kuhlobene nokwakhiwa kwalo.
iphuzu lephini
Lokhu kuhlobene ne-cellulose, enezakhiwo ezimbi zokwakha ifilimu. Ngesikhathi esifanayo, ukungcola okuku-cellulose kusabela kancane ne-calcium yomlotha. Uma ukusabela kukubi kakhulu, i-putty powder izovela esimweni se-bean curd residue. Ayikwazi ukufakwa odongeni, futhi ayinawo amandla okuhlangana ngesikhathi esifanayo. Ngaphezu kwalokho, lesi simo siyenzeka nangemikhiqizo efana ne-carboxymethyl exutshwe ne-cellulose.
Kuvela izintaba-mlilo kanye nemigodi emincane
Lokhu kusobala ukuthi kuhlobene nokucindezeleka kwamanzi kwesisombululo samanzi se-hydroxypropyl methylcellulose. Ukucindezeleka kwetafula lamanzi kwesisombululo samanzi se-hydroxyethyl akubonakali. Kungaba kuhle ukwenza ukwelashwa kokuqeda. Kuhlobene futhi nokwengezwa ngokweqile kwe-hydroxypropyl methylcellulose.
Ngemva kokuba i-putty yomile, kulula ukuyiqhekeka bese iphenduka ibe phuzi
Lokhu kuhlobene nokwengezwa kwenani elikhulu lempuphu yomlotha-calcium. Uma inani lempuphu yomlotha-calcium lingezwa kakhulu, ubulukhuni bempuphu yomlotha buzokhula ngemva kokoma. Uma impuphu yomlotha ingenakho ukuguquguquka, izoqhekeka kalula, ikakhulukazi uma ingaphansi kwamandla angaphandle. Kuhlobene futhi nokuqukethwe okuphezulu kwe-calcium oxide kumpuphu yomlotha we-calcium.
Kungani i-putty powder iba mncane ngemva kokufaka amanzi?
I-Cellulose isetshenziswa njengesithambisi kanye nesithambisi sokugcina amanzi ku-putty. Ngenxa ye-thixotropy ye-cellulose uqobo, ukungezwa kwe-cellulose ku-putty powder nakho kuholela ku-thixotropy ngemva kokufaka amanzi ku-putty. Le thixotropy ibangelwa ukubhujiswa kwesakhiwo esihlanganisiwe kalula sezingxenye ku-putty powder. Lesi sakhiwo sivela lapho siphumule futhi siwohloka ngaphansi kokucindezeleka. Okusho ukuthi, i-viscosity iyancipha lapho ixutshwa, futhi i-viscosity iyalulama lapho ime ndawonye.
Iyini imbangela yokuthi i-putty ibe nzima kakhulu enqubweni yokuklwebha?
Kulesi simo, ubungako be-cellulose esetshenziswa ngokuvamile buphakeme kakhulu. Abanye abakhiqizi basebenzisa i-cellulose engu-200,000 ukwenza i-putty. I-putty ekhiqizwa ngale ndlela inobungako obuphezulu, ngakho-ke izwakala inzima uma iklwejwa. Inani elinconywayo le-putty yezindonga zangaphakathi lingu-3-5 kg, kanti ubungako bungu-80,000-100,000.
Kungani i-viscosity ye-cellulose izwakala ihlukile uma kusetshenziswa i-viscosity cellulose efanayo ebusika nasehlobo?
Ngenxa yokushisa komkhiqizo, i-viscosity ye-putty kanye ne-mortar izoncipha kancane kancane uma izinga lokushisa likhuphuka. Lapho izinga lokushisa lidlula izinga lokushisa le-gel lomkhiqizo, umkhiqizo uzosuswa emanzini bese ulahlekelwa yi-viscosity yawo. Izinga lokushisa legumbi ehlobo ngokuvamile lingaphezu kwama-degrees angu-30, okuhluke kakhulu ekushiseni kwasebusika, ngakho-ke i-viscosity iphansi. Kunconywa ukukhetha umkhiqizo one-viscosity ephezulu lapho usebenzisa umkhiqizo ehlobo, noma ukwandisa inani le-cellulose, nokukhetha umkhiqizo one-viscosity ephezulu ye-gel.
Isikhathi sokuthunyelwe: Ephreli-12-2023