I-MHEC (i-Methyl Hydroxyethyl Cellulose) enye i-polymer esekelwe ku-cellulose evame ukusetshenziswa njengesengezo ezinhlelweni zokunikezela ezisekelwe kusimende.Inezinzuzo ezifanayo ku-HPMC, kodwa inomehluko wezakhiwo.Lokhu okulandelayo yizicelo ze-MHEC kumapulasi osimende:
Ukugcinwa kwamanzi: I-MHEC inyusa ukugcinwa kwamanzi engxubeni yokuplasta, ngaleyo ndlela yandise ukusebenza.Kuyasiza ukuvimbela ingxube ukuthi yome ngaphambi kwesikhathi, ivumela isikhathi esanele sokufaka isicelo nokuqeda.
Ukusebenza kahle: I-MHEC ithuthukisa ukusebenza nokusabalala kwezinto zokuplasta.Ithuthukisa ukubumbana nokugeleza kwezakhiwo, ikwenze kube lula ukuyisebenzisa futhi ifinyelele isiphetho esibushelelezi ezindaweni ezingaphezulu.
Ukunamathela: I-MHEC ikhuthaza ukunamathela okungcono kwe-plaster ku-substrate.Kuyasiza ukuqinisekisa isibopho esiqinile phakathi kwe-plaster kanye nendawo engaphansi, kunciphisa ingozi ye-delamination noma ukuhlukaniswa.
I-Sag Resistance: I-MHEC idlulisela i-thixotropy kungxube ye-plaster, ithuthukisa ukumelana kwayo nokucwila noma ukuwohloka lapho isetshenziswa ngokuqondile noma ngaphezulu.Kuyasiza ukugcina ukujiya okufunayo kanye nokuma kwe-plaster ngesikhathi sokufakwa.
Ukumelana nokuqhekeka: Ngokungeza i-MHEC, izinto zokunamathisela zithola ukuguquguquka okuphezulu futhi ngaleyo ndlela kuthuthukiswe ukumelana nokuqhekeka.Isiza ukunciphisa ukwenzeka kokuqhekeka okubangelwa ukushwabana okomisa noma ukunwetshwa/ukufinyela kwe-thermal.
Ukuqina: I-MHEC inomthelela ekuqineni kohlelo lokuplasta.Yakha ifilimu yokuzivikela lapho isomile, ikhulisa ukumelana nokungena kwamanzi, isimo sezulu kanye nezinye izakhi zemvelo.
I-Rheology Control: I-MHEC isebenza njenge-rheology modifier, ethinta ukugeleza nokusebenza kwengxube yokuhlinzeka.Isiza ukulawula i-viscosity, ithuthukise izici zokumpompa noma zokufafaza, futhi ivimbele ukuhlaliswa noma ukuhlukaniswa kwezinhlayiya eziqinile.
Kumele kuqashelwe ukuthi inani elithile kanye nokukhethwa kwe-MHEC kungase kuhluke kuye ngezidingo ezithile zesistimu yokunamathisela, njengokuqina okudingekayo, izimo zokuphulukisa nezinye izici.Abakhiqizi bavame ukuhlinzeka ngemihlahlandlela kanye namashidi edatha yezobuchwepheshe anamazinga anconyiwe okusetshenziswa nemiyalo yokuhlanganisa i-MHEC ekwakhekeni kwe-samende ye-gypsum.
Isikhathi sokuthumela: Jun-08-2023