Umphumela we-methyl hydroxyethyl cellulose (MHEC) ku-mortar

I-Methyl hydroxyethyl cellulose (MHEC)iyi-non-ionic cellulose ether esetshenziswa kabanzi ekwakheni izinhlelo ze-mortar. Ngenxa yokuqina kwayo okuhle kakhulu, ukugcinwa kwamanzi, ukusebenza kahle kanye nokuhambisana kwayo, i-MHEC isibe ngesinye sezithasiselo ezibalulekile ku-mortar exutshwe okomile, ikakhulukazi ku-adhesive yethayela, i-plaster mortar, i-floor mortar, i-self-leveling mortar kanye neminye imikhiqizo.

1. Indlela yokusebenza ye-MHEC odakeni

I-MHEC, njengezinto ze-polymer ezincibilika emanzini, ingakha isixazululo samanzi esiqinile noma i-colloid efanayo ku-mortar. Uma ingezwa ku-mortar exutshwe okomile futhi ihlangana namanzi, i-MHEC iyamanzisa futhi incibilike ngokushesha, ngaleyo ndlela ithinte izakhiwo ze-rheological ze-mortar, inqubo ye-hydration ye-samente, ukugcinwa kwamanzi kanye nezakhiwo ze-interface. Indlela yayo eyinhloko yokusebenza ifaka amaphuzu alandelayo:

Umphumela wokujiya: I-MHEC yakha isixazululo esinobuthi obukhulu ngemva kokuncibilika emanzini, okungakhulisa kakhulu ubuthi besistimu yodaka, ngaleyo ndlela kuthuthukiswe umuzwa wokwakha kanye nezakhiwo zokulwa nokuwa;

Umphumela wokugcina amanzi: I-MHEC inamandla okugcina amanzi amahle kakhulu, anganciphisa ukulahleka kwamanzi axubile, aqinisekise ukumuncwa okuphelele kwesimende, i-gypsum nezinye izinto eziqinisa ukhonkolo, futhi athuthukise ukuthuthukiswa kwamandla;

Ukuthuthukiswa kokugcotshwa kanye nokusebenza kokwakhiwa: Ama-molecule e-cellulose ether ahlinzeka ngokugcotshwa okuthile ohlelweni lwe-mortar, okusiza ekusetshenzisweni nasekusabalaleni kwe-mortar futhi kuthuthukise ukusebenza kahle kokwakhiwa;

Umphumela wokuzinza kwamabhamuza: I-MHEC ingazinzisa amabhamuza athile ngesikhathi senqubo yokuxuba, futhi inani elifanele lamabhamuza amancane lingathuthukisa ukusebenza kahle kanye nokugcinwa kwamanzi kwe-mortar;

Ukujiya okubambezelekile: I-MHEC inomphumela othile wokulibaziseka ekufakweni kwe-samente, okusiza ukwandisa isikhathi sokusebenza.

2. Ukuthuthukiswa okuqondile kokusebenza kwe-mortar yi-MHEC

2.1. Ukusebenza okuthuthukisiwe kokwakha

Ukusebenza kokwakhiwa kwe-mortar kuyinkomba ebalulekile yokukala ukusebenziseka kwayo kalula. I-MHEC ithuthukisa ukunamathela kanye nokuthamba kwe-mortar emanzi, okwenza kube lula ukuyakha. Ikakhulukazi ku-tile adhesive kanye ne-plaster mortar, inganciphisa kakhulu ukugoba futhi ithuthukise ukufana kokusetshenziswa.

2.2. Ukusebenza okuthuthukisiwe kokugcinwa kwamanzi

Ukugcinwa kwamanzi kungenye yezimpawu eziyinhloko ze-MHEC. Ezindaweni ezinezimbobo (njengezitini nokhonkolo) noma ezindaweni ezomile ezinokushisa okuphezulu, amanzi amuncwa kalula noma aphele ngokushesha, okuthinta ukusabela kokumanziswa kwesimende. I-MHEC ivala umswakama ngempumelelo ngokwenza ifilimu yamanzi, inciphise ukuvuza kwamanzi nokuncibilika, futhi ithuthukise amandla odaka kanye nokunamathela.

2.3. Amandla okubopha athuthukisiwe

I-MHEC ithuthukisa ukufana kanye nezimo zokumanzisa kwe-mortar, yakha isakhiwo esizinzile phakathi kwe-mortar kanye ne-substrate kanye nezinto zomphezulu (ezifana nama-tile), okusiza ekuthuthukiseni amandla okubopha. Ikakhulukazi kuma-adhesive e-tile asebenza kahle kakhulu, i-MHEC ingasebenza ngokubambisana nama-polymer emulsions (njenge-latex powder ephinde ihlakazeke).

2.4. Thuthukisa ukusebenza kokulwa nokuwa

Ngesikhathi sokwakhiwa kwe-facade, i-mortar ivame ukugoba ngenxa yamandla adonsela phansi, okuthinta ukulawula ukujiya kanye nobuhle. I-MHEC inikeza ukusebenza okuhle kakhulu kokulwa nokugoba, okuvumela i-mortar ukuthi igcine isimo sayo odongeni, okubaluleke kakhulu kumathayili amakhulu kanye nezendlalelo ezijiyile.

2.5. Thuthukisa ukuzinza kwesitoreji kanye nokugeleza kwempuphu eyomile

I-MHEC esezingeni eliphezulu inokusabalala okuhle kwempuphu eyomile kanye nokufana kokuxuba, akulula ukuyihlanganisa, futhi ihambisana nokwakheka okuzinzile kanye nokugcinwa kwesikhathi eside kwemikhiqizo yodaka.

3. Izici zokusetshenziswa kwe-MHEC ezinhlelweni ezahlukene ze-mortar

I-Adhesive yethayela

I-MHEC ithuthukisa ukusebenza kokwakha, ukusebenza okungasheleli kanye nesikhathi sokuvula, futhi ithuthukisa ukunamathela kumathayili.

Udaka lwe-Plaster

Thuthukisa ukushelela kokuklwebheka, thuthukisa ukugcinwa kwamanzi, futhi uvimbele ukuqhekeka nokuqhekeka.

Udaka Lwephansi

Thuthukisa ukugeleza nokusebenza kokuzilinganisa ukuze kuqinisekiswe ukujiya okufanayo kokubeka.

I-mortar elinganiselayo

Lawula ukugeleza kwamanzi, vimbela ukuhlukaniswa, futhi uqinisekise ukuthi ubuso buyisicaba.

Udaka Lokuvikela Ukushisa

Ezinhlelweni zokuvikela ukushisa ezilula, i-MHEC iqinisekisa ukusatshalaliswa okufanayo kwe-slurry, ithuthukisa ukubopha kanye nokugcinwa kwamanzi.

4. Izinyathelo zokuqapha zokusetshenziswa

Ukulawulwa kwenani elengeziwe: Inani lokwengeza le-MHEC ngokuvamile liyi-0.2% ~ 0.5%, okudingeka lilungiswe ngokwefomula kanye nezidingo zokwakha;

Izidingo zokuhlakazeka: Ukuze isebenze ngokugcwele, i-MHEC kudingeka ukuthi ihlakazwe ngokulinganayo ngesikhathi senqubo yokuxuba;

Ukuhambisana nezinye izithasiselo: Kufanele kunakwe ukuhlanganiswa kwe-MHEC ne-latex powder, i-retarder, i-defoamer nezinye izithasiselo ukuze kugwenywe ithonya elihambisanayo.

I-Methyl hydroxyethyl cellulose, njenge-cellulose ether esebenza kahle kakhulu, ikhombisa inani elihle kakhulu lokusebenza ohlelweni lwe-mortar. Ayithuthukisi nje kuphela ukusebenza kokwakhiwa, ukuzinza ngokomzimba kanye namandla okugcina e-mortar, kodwa futhi idlala indima ebalulekile ekukhuthazeni ukwenziwa kwezimboni kanye nokwenza imikhiqizo ye-mortar exutshwe nodaka ibe luhlaza. Njengoba izinto zokwakha zithuthuka zibe nokusebenza okuphezulu kanye nokuvikelwa kwemvelo,ukusetshenziswa kwe-MHEC kuzoba kubanzi futhi kujule kakhulu.