I-HPMC kwi-Plastering Plaster

IHydroxypropyl Methylcellulose (HPMC) iqhele ukusetyenziswa kwizicelo zokutyabeka ukuphucula ukusebenza, ukuncamathela, kunye nokusebenza kwemixube yodaka.Nantsi indlela esetyenziswa ngayo i-HPMC kudaka lokutyabeka:

1. Ugcino lwamanzi: I-HPMC ineepropati ezigqwesileyo zokugcina amanzi, eyivumela ukuba ibambe amanzi ngaphakathi komxube wodaka.Oku kunceda ukuthintela ukulahleka kwamanzi okukhawulezayo ngexesha lokufaka isicelo kunye nokunyanga, ukuqinisekiswa kwe-hydration eyaneleyo yezinto ze-cementitious kunye nokukhuthaza ukubeka okufanelekileyo kunye nokunyangwa kwe-plaster.
2. Ukwandiswa kokuSebenza: I-HPMC isebenza njenge-rheology modifier, iphucula ukusebenza kunye nokuhambelana kwemixube ye-plaster.Iyanciphisa i-viscosity yomxube, yenza kube lula ukuyisebenzisa, ukusasazeka, kunye nokusebenza kunye.Oku kubaluleke ngakumbi ekufezekiseni umphezulu ogudileyo nofanayo ngexesha lokutyatyekwa.
3. Ukuphucula ukubambelela: I-HPMC iphucula iimpawu zokubambelela kwi-plaster, ukukhuthaza ukudibanisa okungcono phakathi kwe-plaster kunye ne-substrate.Oku kukhokelela ekuphuculeni ukomelela kokuncamathelisa, ukunciphisa ukuqhekeka, kunye nokomelezwa kokuqina kwenkqubo yodaka.
4. I-Crack Resistance: Ngokuphucula ukubambelela kunye nokunciphisa i-shrinkage, i-HPMC inceda ukunciphisa ukwenzeka kweentanda kwiindawo ze-plaster.Oku kunenzuzo ngakumbi kwizicelo zokutyabeka zangaphandle, apho ukuvezwa kwimiba yokusingqongileyo efana nokuhluka kobushushu kunye nokufuma kunokufaka isandla ekuqhekekeni.
5. Ukumelana ne-Sag: I-HPMC inceda ukucutha ukuwohloka kunye nokudilika kodaka ngexesha lokufaka, ngakumbi kumphezulu othe nkqo.Oku kuqinisekisa ukuba i-plaster igcina ubukhulu bayo obufunwayo kunye nokufana, ukukhusela ukungalingani kunye nokuqinisekisa ukugqitywa komgangatho ophezulu.
6. Ixesha lokumisela eliLawulwayo: I-HPMC ingasetyenziselwa ukulawula ixesha lokumisela imixube yodaka, ukuvumela ixesha elongeziweyo lokusebenza okanye ukusetwa okukhawulezileyo njengoko kufuneka.Oku kunika ukuguquguquka kwinkqubo yesicelo kwaye ivumela ulawulo olungcono malunga nokunyanga kunye nokomisa kwe-plaster.
7. Umthamo kunye nesicelo: Umthamo we-HPMC kudaka lokutyabeka ngokuqhelekileyo usuka kwi-0.1% ukuya kwi-0.5% ngobunzima bomxube owomileyo, ngokuxhomekeke kwiimfuno ezithile zokusetyenziswa kunye neempawu zokusebenza ezifunwayo zodaka.I-HPMC idla ngokudityaniswa kumxube owomileyo phambi kokuba ixutywe namanzi, iqinisekisa ukusasazwa okufanayo kumxube wodaka.

I-HPMC idlala indima ebalulekileyo ekuphuculeni ukusebenza, ukusebenza, kunye nokuqina kodaka lokutyabeka, iyenze ibe yinto eyongezelelweyo eyimfuneko ekutyatyekeni kwezicelo zemigangatho yomibini yangaphakathi nengaphandle.