I-HPMC ngodaka - isengezo esifanele

I-Hydroxypropyl methylcellulose (HPMC) iyi-polymer esetshenziswayo esetshenziswa kabanzi kwizimboni ezahlukahlukene kufaka phakathi ukwakhiwa. Kuzinhlelo zokusebenza ze-gypsum, i-HPMC isebenza njengesengezo esibalulekile enohlobo lwezinzuzo ezisiza ukuthuthukisa ukusebenza okuphelele kanye nekhwalithi yokwakhiwa kwe-gypsum.

Isingeniso se-hydroxypropyllym methylcellulose:

I-Hydroxypropyl Methylcellulose iyi-polymer yokwenziwa ese-cellulose, i-polymer yemvelo etholakala ezitshalweni. I-HPMC ihlelwe ngokwelapha iselula nge-oxylene oxide kanye ne-methyl chloride, okuholela kwizinhlanganisela ngezinto ezithuthukisiwe uma kuqhathaniswa ne-cellulose yomzali. Izinga lokufakwa esikhundleni (DS) le-hydroxypropyl kanye namaqembu we-methoxy e-cellulose backbone enquma izakhiwo ezithile ze-HPMC.

Izici ze-HPMC:

Ukugcinwa kwamanzi:
I-HPMC inezakhiwo ezinhle kakhulu zokugcina amanzi futhi ingakha ifilimu elincanyana ebusweni be-gypsum ukunciphisa ukuhwamuka kwamanzi. Lokhu kubalulekile ukufeza izimo zokwelapha kahle futhi uvikele ukoma ngaphambi kwesikhathi kweStucco.

Ukuqina Okuthuthukisiwe:

Ukungezwa kwe-HPMC kuthuthukisa ukusebenziseka kodaka, okwenza kube lula ukuxuba, ukufaka isicelo nokusakazeka. Ukuguquguquka okuthuthukisiwe kusiza ukuhlinzeka ngezinamathelisi ezingcono nokumboza ezinhlobonhlobo zezindawo eziphezulu.

Isikhathi esilawulwayo sokulawula:

I-HPMC ivumela ukulawulwa okukhulu ngaphezulu kwesikhathi sokulungisa. Ngokushintsha okuqukethwe kwe-HPMC, abakhiqizi bangakwazi ukuvumelanisa izikhathi ezisethiwe ukuze bahlangabezane nezidingo ezithile zephrojekthi, baqinisekise uhlelo lokusebenza kahle futhi liqede.

Khuphula amahora wokuvula:

Isikhathi esivulekile yisikhathi sokuthi udaka oluhlala lusebenza ngaphambi kokusetha. I-HPMC yelule amahora ayo okuvula ukuhlinzeka ngobungcweti kanye nabasebenzi nge-Frafy yesikhathi evuselelekile yokufaka isicelo nokuqedwa kwemisebenzi.

Ngcono Adhesion:

Izakhiwo ezenziwe ngefilimu zosizo lwe-HPMC zithuthukisa ubudlelwano phakathi kodaka kanye ne-substrate. Lokhu kubaluleke kakhulu ekuqinisekiseni isikhathi eside nokuqina kwezindawo ezibunjiwe.

Ukumelana nokuqhekeka:

I-HPMC isiza ukunciphisa amathuba okuqhekeka ku-plaster ngokwandisa ukuguquguquka kwawo namandla. Lokhu kubalulekile ukuze ulondoloze ubuqotho besakhiwo sendawo ekhethiwe ngaphezulu kwesikhathi eside.

I-Rheelogy ethuthukisiwe:

I-Rheology ibhekisela ekuziphatheni nasekuziphatheni kwezimo zokwakha. I-HPMC ingaguqula izakhiwo zesimbozo ze-gypsum, ikunikeze ukuvumelana okudingayo ukuze uhlelo lokusebenza olulula nokulinganisa.

Ukusetshenziswa kwe-HPMC kuGypsum:

Usonga lwe-Gypsum:

Ezakhiweni ze-gypsum, i-HPMC ivame ukusetshenziselwa ukuthuthukisa ukugcinwa kwamanzi, ukusebenziseka kanye nokunamathelisa. Kuyasiza nokulawula ukusetha isikhathi futhi kuthuthukise ukusebenza okuphelele kwe-gypsum-based Stucco.

Ukulungiswa okususelwa kuthusi:

I-HPMC isetshenziswa kabanzi kuma-polsters asuselwa kasimende lapho kuyisengezo esikhulu ukufeza i-Rheology edingekayo, isikhathi esivulekile kanye nokunamathelisa. Izikhathi zokulawula ezilawulwayo zizuzisa ikakhulukazi amaphrojekthi amakhulu wokwakha.

U-Lime Paste:

Ukuqanjwa kopulaka kwe-Lime kuyazuza ngokungezwa kwe-HPMC ukuthuthukisa ukugcinwa kwamanzi nokusebenza. Ukuhambisana kwe-polymer ngezinto zokwakha ezifuywayo zikwenza kube yisinqumo esifanele samaphrojekthi namaphrojekthi wokubuyiselwa.

Ukufakwa kwangaphandle kanye nezinhlelo zokuqeda (ama-EIF):

I-HPMC iyingxenye ebalulekile yezinhlelo zokusebenza ze-EIFS, isiza ukuthuthukisa ukunamathela, ukuguquguquka nokumelana nokuqhekeka. Izakhiwo zayo zokugcina amanzi zibaluleke ikakhulukazi ezinhlelweni ze-stucco zangaphandle.

Ekuphetheni:

I-Hydroxypropylm methylcellulose iyisengezo esifanelekile ekwakheni ama-gypsum ngenxa yegalelo layo elihlanganisiwe ekugcinweni kwamanzi, ukusebenziseka, ukusetha isikhathi sokulawula isikhathi, ukunqwabelanisa nesikhathi sokuqhekeka. Noma ngabe kusetshenziswe ku-plaster, usimende, ukhula noma amasimu angaphandle wokufakelwa kodonga, i-HPMC idlala indima ebalulekile ekuthuthukiseni ukusebenza okuphelele kanye nekhwalithi yodaka. Njengoba ukwakhiwa kwezokwakha kuyaqhubeka nokuvela, ukuguquguquka okuhlukahlukene kwe-HPMC kanye nokwethenjwa kuye kwakwenza kwaba yingxenye ehlanganisiwe yokwakheka kwamapulangwe kwanamuhla, ukuqinisekisa isikhathi eside kanye nempumelelo kumaphrojekthi wokwakha ahlukahlukene.