I-HPMC ku-plaster - isithasiselo esiphelele

IHydroxypropyl methylcellulose (HPMC) iyi-polymer esebenzayo esetshenziswa kabanzi ezimbonini ezahlukahlukene kubandakanya nezokwakha. Ezinhlelweni ze-gypsum, i-HPMC isebenza njengesengezo esibalulekile esinohlu lwezinzuzo ezisiza ukuthuthukisa ukusebenza kanye nekhwalithi yokwakheka kwe-gypsum.

Isingeniso se-hydroxypropyl methylcellulose:

IHydroxypropyl methylcellulose i-semi-synthetic polymer etholakala ku-cellulose, i-polymer yemvelo etholakala ezitshalweni. I-HPMC ihlanganiswa ngokwelapha i-cellulose nge-propylene oxide ne-methyl chloride, okuholela ekuhlanganiseni okunezakhiwo ezithuthukisiwe uma kuqhathaniswa neselulosi engumzali. Izinga lokushintsha (DS) le-hydroxypropyl namaqembu e-methoxy kumgogodla we-cellulose inquma izici ezithile ze-HPMC.

Izici ze-HPMC:

Ukugcinwa kwamanzi:
I-HPMC inezici ezinhle kakhulu zokugcina amanzi futhi ingakha ifilimu elincanyana endaweni yegypsum ukuze ibambezele ukuhwamuka kwamanzi. Lokhu kubalulekile ukuze kuzuzwe izimo ezifanelekile zokuphulukisa nokuvimbela ukomiswa ngaphambi kwesikhathi kwe-stucco.

Ukusebenza okuthuthukisiwe:

Ukwengezwa kwe-HPMC kuthuthukisa ukusebenza kwe-plaster, okwenza kube lula ukuxutshwa, ukufaka nokusabalalisa. Ukuvumelana okuthuthukisiwe kusiza ukunikeza ukunamathela okungcono nokumboza ezindaweni ezihlukahlukene.

Isikhathi sokusetha esilawulwayo:

I-HPMC ivumela ukulawula okukhulu phezu kwesikhathi sokubeka ukhonkolo. Ngokulungisa okuqukethwe kwe-HPMC, abakhiqizi bangakwazi ukuhlela izikhathi ezibekiwe ukuze bahlangabezane nezidingo ezithile zephrojekthi, baqinisekise ukuthi ukusetshenziswa okuphelele nokuqedwa.

Khulisa amahora okuvula:

Isikhathi sokuvula isikhathi lapho ukhonkolo uhlala usebenza ngaphambi kokuthi lumiswe. I-HPMC yelule amahora ayo okuvula ukuze inikeze izingcweti nabasebenzi isikhathi esikhululeke kakhudlwana sokufaka isicelo kanye nokuqedwa kwemisebenzi.

Thuthukisa ukunamathela:

Izici zokwenza ifilimu ze-HPMC zisiza ukuthuthukisa isibopho phakathi kokhonkolo ne-substrate. Lokhu kubaluleke kakhulu ukuze kuqinisekiswe ukuphila isikhathi eside nokuqina kwezindawo ezikhonjiwe.

Ukumelana nokuqhekeka:

I-HPMC isiza ukunciphisa amathuba okuqhekeka kokhonkolo ngokwandisa ukuguquguquka kwayo namandla. Lokhu kubalulekile ukuze kugcinwe ubuqotho besakhiwo sendawo ekhonkolowe esikhathini eside.

I-rheology ethuthukisiwe:

I-Rheology isho ukugeleza nokuziphatha kokuguquguquka kwezinto. I-HPMC ingashintsha izakhiwo ze-rheological zegypsum, inikeze ukuvumelana okufunayo ukuze kube lula ukusetshenziswa kanye nokubeka izinga.

Ukusetshenziswa kwe-HPMC ku-gypsum:

I-Gypsum plaster:

Ekwenziweni kwe-gypsum, i-HPMC ivame ukusetshenziselwa ukuthuthukisa ukugcinwa kwamanzi, ukusebenza nokunamathela. Iphinde isize ukulawula isikhathi sokusetha futhi ithuthukise ukusebenza okuphelele kwe-stucco esekwe ku-gypsum.

Ukuplasta okusekelwe kusimende:

I-HPMC isetshenziswa kabanzi kumapulasi asekelwe kusimende lapho iyisengezo esibalulekile ukuze kuzuzwe i-rheology edingekayo, isikhathi esivulekile kanye nokunamathela. Izikhathi zokumisa ezilawulwayo zizuzisa ngokukhethekile emisebenzini emikhulu yokwakha.

Okunamathiselwe kwe-lime:

Ukwakheka kukakhonkolo kuhlomula ekufakweni kwe-HPMC ukuze kuthuthukiswe ukugcinwa kwamanzi nokusebenza. Ukuhambisana kwe-polymer nezinto ezenziwe nge-lime kuyenza ibe ukukhetha okufanele kumaphrojekthi amagugu nokubuyisela.

I-Exterior Insulation and Finishing Systems (EIFS):

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

Ekuphetheni:

IHydroxypropyl methylcellulose iyisengezo esiphelele ekwakhiweni kwe-gypsum ngenxa yomnikelo wayo onezici eziningi ekugcineni amanzi, ukusebenza, ukusetha ukulawula isikhathi, ukunamathela kanye nokumelana nokuqhekeka. Kungakhathaliseki ukuthi isetshenziselwa ukhonkolo, usimende, umcako noma amasistimu okufakwa odongeni angaphandle, i-HPMC idlala indima ebalulekile ekuthuthukiseni ukusebenza okuphelele kanye nekhwalithi yokhonkolo. Njengoba izindlela zokwakha ziqhubeka nokuvela, ukuguquguquka nokuthembeka kwe-HPMC kuyenze yaba ingxenye ebalulekile yokwakheka kukakhonkolo wesimanje, okuqinisekisa ukuphila isikhathi eside nempumelelo kumaphrojekthi wokwakha ahlukahlukene.