Impembelelo ye-Cellulose Ether kwi-Adhesive Force of Mortar

I-cellulose ethers izongezo ezisebenzayo kwizinto zokwakha, kubandakanywa udaka, kwaye zisetyenziswe kumashishini okwakha anamhlanje amashumi eminyaka. Ifumaneka kwiifom ezininzi kunye namabakala, kwaye ukhetho lwe-cellulose ether luxhomekeke kwisicelo esijoliswe kuyo kunye neempawu zemveliso yokugqibela.

Ngokuqhelekileyo, i-cellulose ether iphucula ukusebenza kodaka ngokunyusa ukusebenza kwayo, ukugcinwa kwamanzi kunye nokunamathela kwi-substrate. Kule nqaku, siya kugxininisa kwimpembelelo ye-cellulose ethers kwi-adhesion mortar, ipropathi ephambili yodaka.

Ukubambelela kukukwazi kwesixhobo esinye ukubambelela kwenye njenge-substrate apho kufakwa udaka. Ukunamathela kodaka kubaluleke kakhulu ekomeleleni nasekusebenzeni kwexesha elide lezakhiwo zokwakha. Izinto ezichaphazela ukunamathela kodaka ziquka iipropati ze-substrate, izakhiwo zodaka, kunye neemeko zokusingqongileyo.

I-ether ye-cellulose iphucula ukunamathela kodaka ngokuphucula i-rheological kunye ne-mechanical properties of mortar. Okokuqala, i-cellulose ethers iphucula i-rheology yodaka ngokwandisa ukusebenza kwabo kunye nokunciphisa ulwahlulo. Ukusebenziseka kubhekisela ekukhululekeni kokudibanisa udaka, ukufakwa kunye nokugqitywa, ngelixa ulwahlulo lubhekisela ekuhlukaneni kwamacandelo omdaka ngexesha lokuxuba okanye ukuphatha. I-rheology yodaka iphuculwe, ivumela ukuba ihambe kwaye igcwalise izikhewu phakathi kwe-substrate kunye nodaka lokunamathela okungcono.

Okwesibini, i-cellulose ethers iphucula iipropathi zoomatshini bodaka, njengamandla awo okuqina kunye nokucinezela, okubalulekileyo ekunamatheleni kodaka kwi-substrate. I-ether ye-cellulose iphucula iimpawu zomatshini zodaka ngokuphucula i-hydration yayo, inkqubo apho i-samente emdaka isabela ngayo ngamanzi ukuze yenze isakhiwo esinzima.

Ubukho be-cellulose ether eludongeni kunciphisa isantya sokuphuma kwamanzi kumdaka kudaka, okukhokelela kwinkqubo yokugalela ixesha elide. Inkqubo ye-hydration ende idala ikhonkco ebanzi, eyomeleleyo phakathi kodaka kunye ne-substrate yokunamathela okungcono.

I-cellulose ethers esetyenziswa kwii-mortars iza kwiindidi ezahlukeneyo kunye neentlobo, kubandakanywa i-methylcellulose, i-hydroxyethylcellulose, kunye ne-hydroxypropylcellulose. I-Methylcellulose yolona hlobo luqhelekileyo kwaye lufanelekile kwiintlobo ezahlukeneyo zezicelo ngenxa yokugcinwa kwamanzi aphezulu, ukuqhubekeka, kunye nokuphucula ukubambelela. I-Hydroxyethyl cellulose, kwelinye icala, i-hydrophilic kwaye inokufunxa kwaye igcine amanzi, ngaloo ndlela iphucula ukusebenza kodaka kunye nokunamathela kwayo kwi-substrate. I-Hydroxypropyl cellulose ifanelekile ukuqina kunye nokuphucula iimpawu ze-rheological zodaka, ngaloo ndlela kuphuculwe ukunamathela.

Ukushwankathela, i-cellulose ether iyongezwa exabisekileyo kwishishini lokwakha kwaye idlala indima ebalulekileyo ekuphuculeni ukunamathela kodaka. Ubukho be-cellulose ether kwi-mortar buphucula iimpawu zayo ze-rheological kunye ne-mechanical, okukhokelela ekusebenzeni okungcono, ukufakwa kwamanzi kunye nokunamathela kwi-substrate. Ukukhethwa kwe-cellulose ether kuxhomekeke kwisicelo esijoliswe kuyo kunye neempawu ezifunwayo zemveliso yokugqibela. Xa usebenzisa i-cellulose ether kwi-mortar, imiyalelo yomenzi kufuneka ilandelwe ukufezekisa iziphumo ezilungileyo kwaye iqinisekise ukuqina kunye nokusebenza kwexesha elide lesakhiwo sokwakha.