Ama-cellulose ethers, afana ne-methyl cellulose (MC) kanye ne-hydroxypropyl methyl cellulose (HPMC), asetshenziswa kakhulu emikhiqizweni esekwe usimende ngenxa yokugcinwa kwawo kahle kwamanzi, ukusebenza kahle, kanye nezakhiwo zokunamathela. Kodwa-ke, ukusebenza kwama-cellulose ether emikhiqizweni kasimende kungathonywa izici ezihlukahlukene, okuhlanganisa uhlobo nomthamo we-cellulose ether, uhlobo nesilinganiso sikasimende, izimo zokuphulukisa, nezimo zemvelo. Ngakho-ke, kubalulekile ukulawula ngempumelelo ukusebenza kwe-cellulose ethers emikhiqizweni kasimende ukuze kuqinisekiswe ikhwalithi engaguquki nokusebenza.

1. Ukukhethwa Kohlobo lwe-Cellulose Ether kanye Nesilinganiso

Ukukhethwa kohlobo lwe-cellulose ether kanye nomthamo kubalulekile ekulawuleni ukusebenza kwe-cellulose ethers emikhiqizweni kasimende. Ama-ether e-cellulose ahlukene anezakhiwo ezihlukile, futhi ukukhethwa kohlobo olufanele lwe-cellulose ether kuncike ekusetshenzisweni okukhethekile kanye nezidingo zokusebenza. Isibonelo, i-HPMC ivamise ukusetshenziswa kuzinto zokunamathisela zamathayili ngenxa yokugcinwa kwayo kahle kwamanzi kanye nezakhiwo zokunamathela, kuyilapho i-MC ivame ukusetshenziswa kumarenders kanye nodaka ngenxa yokusebenza kwayo okuhle kakhulu kanye nezindawo zokugcina amanzi.

Umthamo we-cellulose ether nawo udlala indima ebalulekile ekulawuleni ukusebenza kwawo emikhiqizweni kasimende. Isilinganiso esifanele se-cellulose ether sincike ezicini ezihlukahlukene, okuhlanganisa uhlobo nesikali sikasimende, ukusebenza okufiselekayo nokugcinwa kwamanzi, kanye nezimo zemvelo. Ngokuvamile, isilinganiso se-cellulose ether sisuka ku-0.1% siye ku-2% ngesisindo sikasimende, kuye ngohlelo oluthile kanye nezidingo zokusebenza.

2. Ukuhambisana Nesimende

Ukuhambisana kwe-cellulose ether nosimende kubalulekile ekulawuleni ukusebenza kwayo emikhiqizweni kasimende. Ukwengezwa kwe-cellulose ether kusimende kungathinta isikhathi sokusetha, amandla, nokusebenza kukasimende, kuye ngohlobo nesikali se-cellulose ether kanye nohlobo lukasimende. Ngakho-ke, kubalulekile ukuqinisekisa ukuhambisana kwe-cellulose ether nosimende ukuze kuqinisekiswe ikhwalithi engaguquki nokusebenza.

Ukuhambisana kwe-cellulose ether nosimende kungahlolwa ngokwenza izivivinyo zokuhambisana, ezifana nokuhlolwa kwe-Vicat, ukuhlolwa kwesikhathi sokuqala nesokugcina sokusetha, kanye nokuhlolwa kwamandla acindezelayo. Imiphumela yalokhu kuhlola inganikeza ulwazi olubalulekile ekusebenzeni kwe-cellulose ether emikhiqizweni kasimende futhi ingasetshenziswa ukuthuthukisa uhlobo nesikali se-cellulose ether.

3. Izimo Zokwelapha

Izimo zokuphulukisa zemikhiqizo kasimende zingathinta kakhulu ukusebenza kwe-cellulose ethers. Izimo zokuphulukisa, okuhlanganisa izinga lokushisa, umswakama, nesikhathi sokwelapha, kungathinta ukugeleza kukasimende nokusebenza kwama-cellulose ethers. Izimo ezilungile zokuphulukisa zincike ekusetshenzisweni okukhethekile kanye nezidingo zokusebenza.

Isibonelo, ezintweni ezinamathelayo zamathayela, izimo ezilungile zokuphulukisa zivame ukuba kuzinga lokushisa legumbi elinomswakama omaphakathi kanye nesikhathi sokuphulukisa samahora angama-24 kuye kwangama-48. Kuma-renders nama-mortars, izimo zokuphulukisa ezifanele zingahluka kuye ngohlelo oluthile, kodwa ngokuvamile zihlanganisa amazinga okushisa aphezulu kanye nezikhathi zokuphulukisa ezinde.

4. Izimo Zemvelo

Izimo zemvelo, ezifana nezinga lokushisa, umswakama, kanye nokuchayeka kumakhemikhali noma izinto ezingcolisa umoya, kungase futhi kuthinte ukusebenza kwama-cellulose ethers emikhiqizweni kasimende. Isibonelo, ukuchayeka emazingeni okushisa aphezulu noma umswakama ophansi kungase kuthinte izici zokugcina amanzi zama-cellulose ether, okuholela ekunciphiseni kokusebenza nokunamathela. Ukuchayeka kumakhemikhali noma ukungcola kungase futhi kuthinte ukusebenza kwama-cellulose ether, okuholela ekunciphiseni kwamandla noma ukuqina.

Ngakho-ke, kubalulekile ukucabangela izimo zemvelo ngesikhathi sokusetshenziswa kanye nokusetshenziswa kwama-cellulose ethers emikhiqizweni kasimende. Ukugcinwa nokuphathwa ngendlela efanele kwama-cellulose ethers nakho kungasiza ekugcineni ukusebenza kwawo nokuqinisekisa ikhwalithi engaguquki.

Sengiphetha, ukulawula okusebenzayo kokusebenza kwama-cellulose ether emikhiqizweni kasimende kudinga ukucatshangelwa ngokucophelela kwezici ezihlukahlukene, okuhlanganisa uhlobo nomthamo we-cellulose ether, ukuhambisana nosimende, izimo zokuphulukisa, nezimo zemvelo. Ngokulungiselela lezi zici, kungenzeka ukuzuza ikhwalithi engaguquki nokusebenza kwama-cellulose ethers emikhiqizweni kasimende, okuholela ekusebenzeni okuthuthukisiwe, ukugcinwa kwamanzi, nezakhiwo zokunamathela.