Umthelela we-Cellulose Ether ku-Adhesive Force of Mortar

Ama-cellulose ethers ayizithasiselo ezisebenzayo ezintweni zokwakha, okuhlanganisa nodaka, futhi amashumi eminyaka asetshenziswa embonini yesimanje yokwakha. Itholakala ngezindlela eziningi namabanga, futhi ukukhethwa kwe-cellulose ether kuncike ekusetshenzisweni okuhlosiwe kanye nezakhiwo zomkhiqizo wokugcina.

Ngokuvamile, i-cellulose ether ithuthukisa ukusebenza kodaka ngokuthuthukisa ukusebenza kwayo, ukugcinwa kwamanzi nokunamathela ku-substrate. Kulesi sihloko, sizogxila emphumeleni we-cellulose ethers ekunamatheleni kodaka, impahla eyinhloko yodaka.

Ukunamathela yikhono lento eyodwa ukunamathela kwenye njenge-substrate okufakwa kuyo udaka. Ukunamathela kodaka kubalulekile ekuqineni nasekusebenzeni kwesikhathi eside kwezakhiwo zokwakha. Izinto ezithinta ukunamathela kodaka zihlanganisa izakhiwo ze-substrate, izakhiwo zodaka, nezimo zemvelo.

I-Cellulose ether ithuthukisa ukunamathela kodaka ngokuthuthukisa izakhiwo ze-rheological kanye nemishini yodaka. Okokuqala, ama-cellulose ethers athuthukisa i-rheology yama-mortars ngokukhulisa ukusebenza kwawo kanye nokunciphisa ukuhlukaniswa. Ukusebenza kubhekisela ekuxutshweni okulula kodaka, ukufakwa nokuqedwa, kuyilapho ukuhlukaniswa kubhekisela ekuhlukaniseni izingxenye zodaka phakathi nokuxuba noma ukuphatha. I-rheology yodaka ithuthukisiwe, ivumela ukuthi igeleze futhi igcwalise izikhala phakathi kwe-substrate nodaka ukuze kuhlanganiswe kangcono.

Okwesibili, ama-cellulose ethers athuthukisa izici zemishini yodaka, njengamandla alo aqinile namandla acindezelayo, abalulekile ekunamatheleni kodaka ku-substrate. I-Cellulose ether ithuthukisa izici zemishini yodaka ngokuthuthukisa ukugeleza kwayo, inqubo lapho usimende odakeni uphendulana namanzi ukuze kwakheke isakhiwo esiqinile.

Ukuba khona kwe-cellulose ether odakeni kunciphisa izinga lokuhwamuka kwamanzi odakeni, okuholela enqubweni ye-hydration ende. Inqubo ende ye-hydration idala isibopho esibanzi, esiqinile phakathi kodaka kanye ne-substrate ukuze kunamathele kangcono.

Ama-cellulose ethers asetshenziswa odaka eza ngamabanga nezinhlobo ezahlukahlukene, okuhlanganisa i-methylcellulose, i-hydroxyethylcellulose, ne-hydroxypropylcellulose. I-Methylcellulose iwuhlobo oluvame kakhulu futhi ilungele ukusetshenziswa okuhlukahlukene ngenxa yomthamo wayo ophezulu wokugcina amanzi, ukucutshungulwa, nokunamathela okuthuthukisiwe. I-Hydroxyethyl cellulose, ngakolunye uhlangothi, iyi-hydrophilic futhi ingakwazi ukumunca futhi igcine amanzi, ngaleyo ndlela ithuthukise ukusebenza kodaka kanye nokunamathela kwayo ku-substrate. I-Hydroxypropyl cellulose ifaneleka ukuqina nokuthuthukisa izakhiwo ze-rheological zodaka, ngaleyo ndlela ithuthukise ukunamathela.

Ukufingqa, i-cellulose ether iyisengezo esibalulekile embonini yezokwakha futhi idlala indima ebalulekile ekuthuthukiseni ukunamathela kodaka. Ukuba khona kwe-cellulose ether odakeni kuthuthukisa izici zayo ze-rheological kanye nemishini, okuholela ekusebenzeni kangcono, ukufakwa kwamanzi nokunamathela ku-substrate. Ukukhethwa kwe-cellulose ether kuncike ekusetshenzisweni okuhlosiwe kanye nezakhiwo ezifunwayo zomkhiqizo wokugcina. Uma usebenzisa i-cellulose ether odakeni, imiyalelo yomkhiqizi kufanele ilandelwe ukuze kuzuzwe imiphumela engcono kakhulu futhi kuqinisekiswe ukuqina nokusebenza kwesikhathi eside kwesakhiwo sokwakha.