I-Methyl Hydroxyethyl Cellulose (MHEC) enyibilikiswe kwisamente emanzi

I-Methyl Hydroxyethyl Cellulose (MHEC)yi-non-ionic cellulose ether esetyenziswa kakhulu kwizixhobo zokwakha, ingakumbi kwi-mortar emanzi, kwaye idlala indima ebalulekileyo. Ukunyibilika kwayo emanzini kunye nolwakhiwo oluphezulu lweemolekyuli kwenza ukuba yenze isisombululo esiqinileyo emanzini, nto leyo enika i-mortar iipropati ezilungileyo zokucubungula, ukugcinwa kwamanzi kunye nokulungelelaniswa kokwakhiwa.

1. Iimpawu ezisisiseko ze-MHEC

I-MHEC yi-cellulose ether derivative eyenziwe ngokungenisa amaqela e-methyl kunye ne-hydroxyethyl kwi-cellulose yendalo ngokusebenzisa i-etherification reaction. Inokunyibilika kwamanzi kakuhle, iipropati zokwenza ifilimu, ukugcinwa kwamanzi kunye nokunamathela. Izinzile phantsi kweemeko ezingathathi hlangothi kunye ne-alkaline kwaye ihambelana kakuhle ne-biocompatibility kunye nokhuseleko lokusingqongileyo.

I-MHEC iyanyibilika emanzini abandayo kubushushu begumbi ukuze yenze isisombululo se-colloidal esibonakalayo ukuya kwi-translucent, kwaye ayinyibiliki emanzini ashushu okanye uninzi lwezinyibilikisi ze-organic. Inkqubo yayo yokunyibilika yinkqubo yokwandiswa-ukusasazwa-ukunyibilika, kwaye ayibandakanyi iimpembelelo zeekhemikhali.

2. Inkqubo yokunyibilikisa i-MHEC kwi-mortar emanzi

Kwisigqubuthelo esimanzi, i-MHEC idla ngokufakwa kumxube owomileyo ngendlela yomgubo, ize inyibilike kancinci kancinci ngexesha lokongeza amanzi nokuxuba:

Inqanaba lokuqala – ukufunxwa kwamanzi nokudumba: Amasuntswana e-MHEC afunxa amanzi aze adumbe phezu komphezulu emva kokudibana namanzi, nto leyo eyenza ijeli.

Isigaba esiphakathi – ukusasazwa kunye nokudumba: Ngokusebenza kokushukumisa, inxalenye yesakhiwo se-colloidal iyatshatyalaliswa, kwaye i-MHEC iqala ukusasazeka kuyo yonke inkqubo.

Inqanaba lokugqibela – ukunyibilika ngokupheleleyo: Emva kokuxutywa okuqhubekayo kunye nexesha elithile, i-MHEC iyanyibilika ngokupheleleyo ukuze yenze isisombululo se-polymer esizinzileyo, esisasazwa ngokulinganayo kwi-mortar.

Kwizicelo ezisebenzayo, izinga lokunyibilika kwe-MHEC liya kuchaphazeleka bubunzulu bokuxukuxa, ubushushu bamanzi, ubungakanani bamasuntswana, kunye nezinye izinto ezikwifomyula (ezifana nesamente, igypsum, isanti, njl.njl.). Ulawulo olufanelekileyo lwezi parameters lunokuthintela ingxaki yokuhlangana okanye ukunyibilika okungaphelelanga.

3. Imisebenzi ephambili ye-MHEC kudaka olumanzi

3.1. Ukuphucula ukugcinwa kwamanzi

Eyona mpembelelo ibalulekileyo ye-MHEC kukuphucula kakhulu amandla okugcina amanzi kwi-mortar, ukunciphisa ukufuma ngokukhawuleza kwamanzi asimahla, ukwandisa ngokufanelekileyo ixesha lokuphendula nge-samente, ngaloo ndlela kuphuculwe amandla okubopha kunye namandla, kwaye kuthintelwe ukuqhekeka kwangethuba.

3.2. Phucula ukusebenza kolwakhiwo

Ngenxa yokuthambisa kunye nefuthe lokutyeba le-MHEC, i-mortar inokusebenza kakuhle, iguquguqukayo kwaye iyasasazeka, inciphisa ubunzima bokwakha kwaye iphucula ukusebenza kakuhle. Ingakumbi kwinkqubo yokuplasta kunye nokufaka iithayile, inokuthintela ngempumelelo i-mortar ekuweni nasekutyibilikeni.

3.3. Phucula ukusebenza kokubopha

Ulwakhiwo lwenethiwekhi ye-colloidal eyenziwe yi-MHEC kwi-mortar yonyusa amandla okubopha phakathi kwe-mortar kunye nomaleko wesiseko, ingakumbi xa kusakhiwa kumphezulu othe nkqo okanye kumphezulu ophezulu, okugcina i-mortar ingawi kwaye iphucula ukuthembeka kolwakhiwo.

3.4. Lungisa ukuhambelana kunye nokuguquguquka

Ngokulungisa ubungakanani be-MHEC, ukuhambelana kunye nokuziphatha kwe-rheological kwe-mortar emanzi kunokulawulwa, ukuze ibe nokugeleza okufanelekileyo, okulungele ukwakhiwa, kwaye akuyi kuchaphazela isiphumo sokubumba ngenxa yokuhamba kakhulu kwamanzi.

3.5. Ukuphucula ukusebenza kokungatyibiliki

Kwizicelo ezifana nezincamathelisi zethayile kunye nee-bonding mortars, i-MHEC inokuthintela ngempumelelo ukutyibilika kwe-mortar, iphucule uzinzo lolwakhiwo, kwaye ihlangabezane neemfuno zokwakha zokuncamathelisa ngokuthe nkqo kunye neethayile ezinkulu.

4. Impembelelo yedosi ye-MHEC ekusebenzeni kwe-mortar

Ubungakanani bokongeza be-MHEC buhlala bulawulwa phakathi kwe-0.1% kunye ne-0.5% (ngokusekelwe kubungakanani bezinto ezomileyo). Imiphumo yemilinganiselo eyahlukeneyo ekusebenzeni kwe-mortar yile ilandelayo:

Umthamo ophantsi (<0.1%): ukugcinwa kwamanzi kuphuculwe kancinci, kodwa ukuphucuka kokusebenza kolwakhiwo akubonakali.

Umlinganiselo ophakathi (0.2% ~ 0.4%): Ukusebenza okugqibeleleyo, uphuhliso olulinganiselayo lokugcinwa kwamanzi, ukusebenza kolwakhiwo, kunye namandla okubopha.

Ukusetyenziswa kakhulu (>0.5%): Kunokubangela ukuqina kakhulu kwesamente, kunciphise ukunyibilika, kwaye kwandise ixesha lokuseta.

Ke ngoko, kuyilo oluthile lwefomula, kuyimfuneko ukumisela ubungakanani obufanelekileyo bokongeza i-MHEC ngokusebenzisa iimvavanyo ukuze kufezekiswe isiphumo esifanelekileyo sokusetyenziswa.

5. Ukusebenzisana nezinye izongezo

I-MHEC ingasetyenziswa kunye nezinye izinto ezahlukeneyo ezisebenzayo, ezifana nezi:

Ngomgubo we-latex ophinda unyibilike (VAE): kuphucula ukuguquguquka kunye namandla okubopha kwesamente;

Ngezixhobo ezithintela ubushushu: ukulibazisa ukufuma kwesamente, sebenzisana ne-MHEC ukuphucula ifestile yokwakha;

Ngezihluzi/iiminerali ezidityanisiweyo: lungelelanisa ukuguquguquka kunye nophuhliso lwamandla, uzinzise ulwakhiwo lwedaka.

Njengesongezelelo esibalulekileyo esisebenzayo kwi-mortar emanzi,i-hydroxyethyl methylcellulose (MHEC) idlala indima ezininzi ekwandiseni, ukugcinwa kwamanzi, ukuphuculwa kunye nokuphuculwa kolwakhiwo kwinkqubo yesamente ngokusebenzisa iimpawu zayo ezilungileyo zokunyibilika emanzini. Sisithako esisebenza kakuhle kakhulu kwizixhobo zokwakha zanamhlanje. Ngokukhetha ngokwesayensi iimodeli kunye needosi, i-MHEC inokuphucula ngokufanelekileyo ukusebenza okubanzi kwesamente, ihlangabezane neemfuno zeemeko ezahlukeneyo zokwakha, kwaye incede ulwakhiwo oluluhlaza nolusebenzayo.