Isiphumo se-methyl hydroxyethyl cellulose (MHEC) kwi-mortar

I-Methyl hydroxyethyl cellulose (MHEC)yi-non-ionic cellulose ether esetyenziswa kakhulu ekwakheni iinkqubo ze-mortar. Ngenxa yokuqina kwayo okugqwesileyo, ukugcinwa kwamanzi, ukusebenza kakuhle kunye nokuhambelana kwayo, i-MHEC ibe yenye yezona zinto zibalulekileyo kwi-mortar exutywe nodaka, ngakumbi kwi-tile adhesive, i-plaster mortar, i-floor mortar, i-self-leveling mortar kunye nezinye iimveliso.

1. Indlela yokusebenza ye-MHEC ngodaka

I-MHEC, njengesixhobo sepolymer esinyibilikayo emanzini, inokwenza isisombululo samanzi esifana ne-viscous okanye i-colloid kwi-mortar. Xa ifakwa kwi-mortar exutywe nomileyo kwaye idibana namanzi, i-MHEC iyamanzisa kwaye inyibilike ngokukhawuleza, ngaloo ndlela ichaphazela iipropati ze-rheological ze-mortar, inkqubo ye-samente hydration, ukugcinwa kwamanzi kunye neepropati ze-interface. Indlela yayo yokusebenza ephambili ibandakanya la manqaku alandelayo:

Isiphumo sokuqina: I-MHEC yenza isisombululo esinoburhabaxa obuphezulu emva kokunyibilika emanzini, nto leyo enokunyusa kakhulu uburhabaxa benkqubo yodaka, ngaloo ndlela iphucula indlela yokwakha kunye neempawu zokungatyibiliki;

Isiphumo sokugcina amanzi: I-MHEC inomthamo obalaseleyo wokugcina amanzi, onokunciphisa ukulahleka kwamanzi axutyiweyo, uqinisekise ukufuma okupheleleyo kwesamente, i-gypsum kunye nezinye izinto eziqinisa isamente, kwaye iphucule uphuhliso lwamandla;

Ukuphucula ukusebenza kokuthambisa nokwakha: Iimolekyuli ze-cellulose ether zibonelela ngokuthambisa okuthile kwinkqubo ye-mortar, nto leyo enceda ekusetyenzisweni nasekusasazweni kwe-mortar kwaye iphucula ukusebenza kakuhle kokwakha;

Isiphumo sokuzinzisa amaqamza: I-MHEC ingazinzisa amaqamza athile ngexesha lenkqubo yokuxuba, kwaye inani elifanelekileyo lamaqamza amancinci linokuphucula ukusebenza kakuhle kunye nokugcinwa kwamanzi kwesamente;

Ukucola okulibazisekileyo: I-MHEC inefuthe elithile lokulibazisa ekufakweni kwesamente, nto leyo enceda ukwandisa ixesha lokusebenza.

2. Ukuphuculwa okuthe ngqo kokusebenza kwesamente yi-MHEC

2.1. Ukuphuculwa kokusebenza kolwakhiwo

Ukusebenza kolwakhiwo lwe-mortar luphawu oluphambili lokulinganisa ukulula kokusetyenziswa kwayo. I-MHEC iphucula ukunamathela kunye nokuthamba kwe-mortar emanzi, okwenza kube lula ukuyakha. Ingakumbi kwi-tile adhesive kunye ne-plaster mortar, inokunciphisa kakhulu ukugoba kwaye iphucule ukufana kokusetyenziswa kwayo.

2.2. Ukusebenza kakuhle kokugcinwa kwamanzi

Ukugcinwa kwamanzi yenye yezona mpawu ziphambili ze-MHEC. Kwiindawo ezinemingxuma (ezifana nezitena kunye nekhonkrithi) okanye kwiindawo ezomileyo ezinobushushu obuphezulu, amanzi afunxwa lula okanye aphele ngokukhawuleza, nto leyo echaphazela indlela yokufunxwa kwesamente. I-MHEC ivala umswakama ngempumelelo ngokwenza ifilimu yamanzi, inciphise ukuvuza kwamanzi kunye nokushwabana, kwaye iphucula amandla kunye nokunamathela kwesamente.

2.3. Ukuphucula amandla okubopha

I-MHEC iphucula ukufana kunye neemeko zokufuma kwesamente, yakha ulwakhiwo oluzinzileyo phakathi kwesamente kunye nesamente kunye nezinto eziphezulu (ezifana neethayile), nto leyo enceda ekuphuculeni amandla okubopha. Ingakumbi kwi-adhesives zethayile ezisebenza kakuhle, i-MHEC ingasebenza ngokubambisana ne-polymer emulsions (ezifana ne-latex powder ephinda inyibilike).

2.4. Ukuphucula ukusebenza kokungatyibiliki

Ngexesha lokwakhiwa kwefacade, i-mortar idla ngokuwa ngenxa yomxhuzulane, nto leyo echaphazela ulawulo lobukhulu kunye nobuhle. I-MHEC inika ukusebenza okuhle kakhulu kokulwa nokuwa, ivumela i-mortar ukuba igcine imo yayo eludongeni, nto leyo ebaluleke kakhulu kwiithayile ezinkulu kunye neengqimba ezixineneyo.

2.5. Phucula uzinzo kwindawo yokugcina kunye nokunyibilika komgubo owomileyo

I-MHEC esemgangathweni ophezulu inokusasazeka kakuhle komgubo owomileyo kunye nokufana kokuxuba, akulula ukuyihlanganisa, kwaye ilungele ukwenziwa okuzinzileyo kunye nokugcinwa kwexesha elide kweemveliso zedaka.

3. Iimpawu zokusetyenziswa kwe-MHEC kwiinkqubo ezahlukeneyo zedaka

Isincamathelisi sethayile

I-MHEC iphucula ukusebenza kolwakhiwo, ukusebenza okungatyibilikiyo kunye nexesha elivulekileyo, kwaye iphucula ukunamathela kwiithayile.

I-Plaster Mortar

Phucula ukuguda kokukrwela, phucula ukugcinwa kwamanzi, kwaye uthintele umgubo nokuqhekeka.

I-mortar yomgangatho

Phucula ukutyibilika kunye nokusebenza kokulinganisa ngokwakho ukuqinisekisa ukuba ubukhulu bokubeka buyafana.

I-mortar elungelelanisayo

Lawula ukutyibilika, thintela ukwahlulwahlulwa, kwaye uqinisekise ukuba umphezulu uthambile.

I-mortar yokukhusela ubushushu

Kwiinkqubo zokukhusela ubushushu ezikhaphukhaphu, i-MHEC iqinisekisa ukusasazwa okufanayo koludaka, iphucula ukubopha kunye nokugcinwa kwamanzi.

4. Amanyathelo okusebenzisa

Ulawulo olongezelelweyo lwemali: Isixa esongeziweyo se-MHEC sidla ngokuba yi-0.2% ~ 0.5%, ekufuneka sihlengahlengiswe ngokwefomyula kunye neemfuno zokwakha;

Iimfuneko zokusasazeka: Ukuze isebenze ngokupheleleyo, i-MHEC kufuneka isasazwe ngokulinganayo ngexesha lenkqubo yokuxuba;

Ukuhambelana nezinye izongezo: Kufuneka kuqwalaselwe ukulungelelaniswa kwe-MHEC kunye ne-latex powder, i-retarder, i-defoamer kunye nezinye izongezo ukuze kuthintelwe impembelelo efanayo.

I-Methyl hydroxyethyl cellulose, njenge-cellulose ether esebenza kakuhle, ibonisa ixabiso elibalaseleyo lokusebenza kwinkqubo ye-mortar. Ayiphuculi kuphela ukusebenza kolwakhiwo, uzinzo lomzimba kunye namandla okugqibela e-mortar, kodwa ikwadlala indima ebalulekileyo ekukhuthazeni ukwenziwa kwemizi-mveliso kunye nokufaka uhlaza kwiimveliso ze-mortar ezixutywe nodaka. Njengoko izixhobo zokwakha ziphuhlisa ukusebenza okuphezulu kunye nokukhuselwa kwendalo,ukusetyenziswa kwe-MHEC kuya kuba kubanzi nangakumbi.