Umphumela we-Cellulose Ether ku-Putty Powder Application

Iyini isizathu sokuthi i-putty powder yome ngokushesha?

Lokhu ikakhulukazi kuhlobene nokwengezwa kwe-calcium yomlotha kanye nezinga lokugcinwa kwamanzi kwe-fiber, futhi kuhlobene nokomisa kodonga.

Kuthiwani ngokucwecwa nokuginqika?

Lokhu kuhlobene nesilinganiso sokugcinwa kwamanzi, okulula ukwenzeka lapho i-viscosity ye-cellulose iphansi noma inani lokwengeza lincane.

Ingabe ngezinye izikhathi inamaphoyinti?

Lokhu kuhlobene ne-cellulose, enezindawo ezimbi zokwakha ifilimu, futhi ngesikhathi esifanayo, ukungcola kwe-cellulose kusabela kancane nge-ash calcium. Uma ukusabela kunzima, i-putty powder izovela njengensalela ye-bean curd. Ayikwazi ukufakwa odongeni, futhi ayinawo amandla ahlangene ngesikhathi esifanayo. Ngaphezu kwalokho, lesi simo siphinde senzeka ngemikhiqizo efana namaqembu e-carboxyl angezwe ku-cellulose.

Izintaba-mlilo namaphinifa?

Lokhu ngokusobala kuhlobene nokushuba kwesimo samanzi sesisombululo samanzi se-hydroxypropyl methylcellulose. Ukungezwani kwetafula lamanzi kwesisombululo samanzi se-hydroxyethyl akubonakali. Kungaba kuhle ukwenza ukwelashwa kokuqeda.

Kungani i-putty powder iba mncane ngemva kokungeza amanzi?

I-Cellulose isetshenziswa njenge-thickener kanye ne-ejenti yokugcina amanzi ku-putty. Ngenxa ye-thixotropy ye-cellulose ngokwayo, ukungezwa kwe-cellulose ku-putty powder nakho kuholela ku-thixotropy ngemva kokwengeza amanzi ku-putty. Le thixotropy ibangelwa ukubhujiswa kwesakhiwo esihlanganisiwe esikhululekile sezingxenye ku-putty powder. Lesi sakhiwo sivuka ekuphumuleni futhi siphuka ngaphansi kokucindezeleka. Okusho ukuthi, i-viscosity iyancipha ngaphansi kokugqugquzela, futhi i-viscosity iyalulama lapho imile.

Yisiphi isizathu esenza ukuthi i-putty ibe nzima kakhulu ohlelweni lokukhuhla?

Kulokhu, i-viscosity ye-cellulose esetshenziswa ngokuvamile iphezulu kakhulu. Abanye abakhiqizi basebenzisa i-cellulose engu-200,000 ukwenza i-putty. I-putty ekhiqizwa ngale ndlela ine-viscosity ephezulu, ngakho izwa isindayo uma ikhuhla. Inani elinconyiwe le-putty yezindonga zangaphakathi yi-3-5 kg, futhi i-viscosity yi-80,000-100,000.

Kungani i-putty ne-mortar eyenziwe nge-cellulose ene-viscosity efanayo izizwa ihlukile ebusika nasehlobo?

Ngenxa ye-gelation eshisayo yomkhiqizo, i-viscosity yomkhiqizo izokwehla kancane kancane ngokunyuka kwezinga lokushisa. Lapho izinga lokushisa lidlula izinga lokushisa lejeli lomkhiqizo, umkhiqizo uzodonswa emanzini futhi ulahlekelwe yi-viscosity yawo. Izinga lokushisa lekamelo ehlobo livame ukuba ngaphezu kwama-degree angu-30, okuhluke kakhulu ekushiseni kwasebusika, ngakho-ke i-viscosity iphansi. Kunconywa ukukhetha imikhiqizo enokushisa kwe-gel ephezulu uma usebenzisa imikhiqizo ehlobo. Izinga lokushisa lejeli lomkhiqizo ngokuvamile lingaphezu kwama-75 degrees. Izimfuneko ezijwayelekile ze-Wall putty kazwelonke (JG/T298-2009), ikhwalithi yomkhiqizo izinzile, ukusebenza kwemvelo okuyiziro zero voc kuhle. Ngokuvamile, izinga lokushisa lejeli le-methyl cellulose licishe libe ngama-degree angama-55 ehlobo. Uma izinga lokushisa liphakeme kancane, i-viscosity yayo izothinteka kakhulu.