Kwisimende Sikhulu HPMC HYDROXYPROPYL Methylcellulose

I-Hydroxypropyl Methylcellulose (HPMC) iyingxenye eguquguqukayo esetshenziswa kabanzi njenge-centmitharder emkhakhelweni ohlukahlukene. Ngezakhiwo zayo ezihlukile kanye nokusebenza, i-HPMC idlala indima ebalulekile ekuthuthukiseni ukusebenza kanye nekhwalithi yemikhiqizo esekwe komusi.

1.Charoctissistic of HPMC:

Isakhiwo samakhemikhali: I-HPMC iyi-ether engekho i-ether etholwa kusuka ku-cellulose, i-polymer yemvelo. Ihlanganiswe ngokwelapha iselula nge-propelene oxide ne-methyl chloride.
I-Hydrophilic Imvelo: I-HPMC i-hydrophilic kakhulu, okusho ukuthi imunca kalula futhi igcina amanzi. Le mpahla ibalulekile endimeni yayo njengesikhundla sikakhonkolo, ngoba isiza ekugcinweni kwamanzi ngaphakathi kwe-matrix ene-cecmentix.
Ikhono lokuqina: I-HPMC ibonisa izakhiwo ezinhle kakhulu lapho zihlakazeka emanzini. Kwakha isixazululo esibonakalayo esikhula ngempumelelo ama-slurries kasimende, udaka, nezinye izinto zokwakha.
Ukwakheka kwamafilimu: Ekomeni, i-HPMC yakha ifilimu esobala, evumelana nezimo, futhi ehlangana. Le filimu isebenza njengesithiyo, ukuthuthukisa ukunamathela, ukumelana kwamanzi, nokuqina kwemikhiqizo esekwe kuthusi.
Ukuqina kwe-PH: I-HPMC iyazinza ngaphezu kwebanga le-PH, okwenza lihambisane nokwakheka kwamasenti ahlukahlukene kanye nemibandela yokwakha.

2.Izicelo ze-HPMC emikhiqizweni esekwe ku-Cement:

Izikhangiso ze-Tile: I-HPMC ivame ukusetshenziswa njenge-nyouner in tile adhesives ukwenza ngcono ukuwenza, ukunamathela kanye nokumelana kwe-sag. Kuthuthukisa amandla ebhondi phakathi kwamathayili kanye nezindawo zokunyumba, ukuqinisekisa ukufakwa okuhlala isikhathi eside.
UDinga: Ku-Cement Farars, i-HPMC isebenza njengesiguquli se-Rheology, ukulawula i-viscosity kanye nokuvimbela ukwahlukaniswa. Ikhuthaza ukusatshalaliswa okufanayo kwezinhlanganisela, kuthuthukisa ukuncipha, futhi kunciphise ukuqhekeka kwe-shrinkage.
Amakhompiyutha okuzenzela: I-HPMC ifaka izakhiwo ezizikhandlayo kwizindawo zokuzihlukanisa ne-cementlevelis, lula okubushelelezi ngisho nokubukeka. Ithuthukisa ukugeleza, incishise iziphambeko ezingaphezulu, futhi ithuthukise ukuphela okuphelele.
Ama-Grouts: I-HPMC isetshenziswa ekwakhiweni kwe-grout ukulungisa i-viscosity futhi ivikele ukugeza kwezinhlayiya zosethu. Kuqinisekisa ukugcwaliswa kwezikhala okufanele, kukhulisa ubumbano, futhi kunciphise ukushwabana ngesikhathi sokuphulukisa.
Ukufakwa kwangaphandle kanye nezinhlelo zokuqeda (ama-EIFs): Izigqoko ezisuselwa ku-HPMC zisetshenziswa kuma-EIFS ukuthuthukisa ukumelana nesimo sezulu, amandla okubopha aqhekeka, kanye nesikhalazo sobuhle. Lezi zimbozo zinikeza ungqimba oluvikelayo phezu kwamabhodi wokufakelwa, ngcono ukusebenza kahle kwamandla nokuqina.

3..Benehits we-HPMC njenge-cement smilener:

Ukusebenza okuthuthukisiwe: I-HPMC ifaka ukugeleza okuhle nokusakazeka ekuxubeni okuqinisekisiwe, ukuthuthukisa ukusebenzelana kanye nokusebenza kalula.
Ukunamathela okuthuthukisiwe: Izakhiwo ezenziwe ngefilimu ze-HPMC zithuthukisa amandla ebhondi phakathi kwezinto zokwakha i-cemective kanye nama-substrates, okuholela ekwakhiweni okuhlala isikhathi eside nasekude.
Ukugcinwa kwamanzi: I-HPMC ithuthukisa kakhulu ukugcinwa kwamanzi ngaphakathi kokwakheka komoya kasimende, ukunciphisa ukulahleka kwamanzi ngokuhwamuka kanye nokuqinisekisa i-hydrate efanele yezinhlayiya.
Ukuncipha kwe-shrinkage: Ngokulawula ukuhwamuka kwamanzi kanye nokwenza ngcono ubumbano, i-HPMC isiza ukunciphisa ukuqhekeka kwe-shrinkage ngezinto zokwakha cementled, uthuthukise ubuqotho babo.
I-Verratility: I-HPMC ingafakwa kalula kumikhiqizo ehlukahlukene esekwe ko usimende, inikezela ukuguquguquka ekubumbeni nasekuzuzeni izici zokusebenza ezifunwayo.

I-4.Consideritions ngokusebenzisa i-HPMC:

Umthamo: Umthamo ofanele we-HPMC uncike ngezinto ezifana nohlobo lwesimende, uhlobo olufunayo, nezidingo zohlelo lokusebenza. Kubalulekile ukwenza izilingo ukunquma umthamo ofanele wokwenza okuthile.
Inqubo yokuxuba: Ukuhlakazwa okufanele kwe-HPMC kubalulekile ukufeza imiphumela efiselekayo yokuqina. Kufanele ingezwe kancane kancane kumanzi okuxuba ngenkathi ivuselela ngokuqhubekayo ukuvikela ukwakheka kwe-lump.
Ukuvumelana: I-HPMC ingasebenzisana nezinye izengezo ezikhona ekwakhiweni kosimende. Ukuhlolwa kokuhambisana kufanele kwenziwe ukuze kuqinisekiswe ukuqina nokusebenza komkhiqizo wokugcina.
Izimo zemvelo Ukucatshangelwa okukhethekile kungadingeka ngesikhathi sezulu esishisayo noma esomile ukuvikela ukoma ngaphambi kwesikhathi nokuqhekeka.
Isitoreji: I-HPMC kufanele igcinwe endaweni epholile, eyomile kude nokukhanya kwelanga okuqondile nomswakama. Izimo zokugcina ezifanele zisiza ukugcina ikhwalithi yayo futhi yenzeke impilo yeshelufu.

I-HPMC isengezo esibalulekile semikhiqizo esuselwa kumasimula kasimende, enikeza izinzuzo eziningi ezinjengokusebenza okuthuthukile, ukunamathela, ukugcinwa kwamanzi, nokuqina. Ngokuqonda izici zayo, izinhlelo zokusebenza, izinzuzo, kanye nokucatshangelwa, abakhiqizi kanye nochwepheshe bokwakha kungabopha amandla aphelele e-HPMC ukwenza kahle ukusebenza kanye nekhwalithi yokwakheka kwamasenti abo.