I-Polymer yendalo ye-Hydroxypropyl Methylcellulose ye-Cement Based Plaster

I-Hydroxypropyl methylcellulose (HPMC) yipolymer yendalo esetyenziswe ngokubanzi kwishishini lokwakha njenge-samente-based based plaster additive. Ingasetyenziswa njenge-arhente yokugcina amanzi, i-thickener, kunye ne-binder ukuphucula ukusebenza kwe-samente-based plasters.

I-HPMC yi-semi-synthetic, ipholima enyibilikayo emanzini eyenziwe ngeselulosi. Ithathwe kwi-cellulose yendalo ngokusebenzisa inkqubo yokuguqulwa kweekhemikhali ebandakanya ukongezwa kwe-hydroxypropyl kunye namaqela e-methyl. Olu hlengahlengiso luphumela kwipolymer enokuphuculwa kokunyibilika kwamanzi, ukuzinza kwe-thermal, kunye nokumelana neekhemikhali.

Ukusetyenziswa kwe-HPMC kulwakhiwo lwesamente esekwe kwisamente kubonelela ngeenzuzo ezininzi ezinje:

1. Ukuphuculwa kokuSebenza: I-HPMC isebenza njenge-rheology modifier ephucula ukusebenza kunye neempawu zesicelo sodaka. Ukwandisa ukunamathela, ukudibanisa, kunye nokusabalalisa i-plaster, evumela ukuba isetyenziswe ngokulula kwi-substrate.
2. Ugcino lwamanzi olomeleziweyo: I-HPMC inokufunxa kwaye igcine isixa esikhulu samanzi, nto leyo enceda ukuthintela udaka ukuba lome ngokukhawuleza. Le propati ikwaqinisekisa ukuba udaka lugcina ukuhambelana kunye nokusebenza ixesha elide, nakwiimeko ezishushu nezomileyo.
3. Ukwandiswa koBumbano kunye nokuBambisana: I-HPMC yenza ifilimu ejikeleze iinqununu zesamente, eziphucula ukubambisana kwazo kunye nokunamathela kwi-substrate. Le propati iqinisekisa ukuba i-plaster ihlala ilungile kwaye ayiqhekezi okanye ihluke kwi-substrate.
4. Ukunciphisa Ukuqhekeka: I-HPMC iphucula amandla okuqina kunye nokuguquguquka kwe-plaster, ukunciphisa amathuba okuqhekeka ngenxa yokunciphisa okanye ukwandiswa.
5. Ukuphuculwa koKuhlala ixesha elide: I-HPMC ibonelela ngodaka ngokuphucuka kokumelana namanzi kunye nokumelana neekhemikhali, kuyenza ibe yomelele kwaye ixhathise kwimozulu kunye nokuguga.

Ukongeza kwezi zibonelelo, i-HPMC ikwayinto ezinzileyo kunye neyokusingqongileyo enokuthi incede ukunciphisa impembelelo yokusingqongileyo yeeplasta ezisekelwe kwisamente. Ayinatyhefu, iyabola, kwaye ayikhuphi izinto ezinobungozi kwindalo esingqongileyo.

Ukusebenzisa i-HPMC kwiiplasta ezisekwe kwisamente, yongezwa kumxube owomileyo wesamente nesanti phambi kokuba kongezwe amanzi. Idosi ecetyiswayo ye-HPMC iyahluka ngokuxhomekeke kwisicelo esithile kunye neempawu ezifunwayo zodaka. Ngokubanzi, idosi ye-0.2% ukuya kwi-0.5% ye-HPMC ngokusekelwe kubunzima besamente kunye nesanti iyacetyiswa.

I-HPMC sisongezo esisebenza ngeendlela ezininzi nesisebenzayo esinokuphucula ngokubonakalayo ukusebenza kweeplates esekwe kwisamente. Imvelaphi yayo yendalo, uzinzo, kunye nokusebenzelana kwendalo kuyenza ibe lukhetho olunomtsalane kwiikontraka, abayili bezakhiwo, kunye nabanini bezakhiwo ababeka phambili iindlela zokwakha ezizinzileyo.