I-Hydroxypropyl methylcellulose (HPMC) i-gypsum ehlanganisiwe

ethula:

I-Hydroxypropyl methylcellulose (HPMC) i-gypsum eboshiwe iyimpahla yokwakha esezingeni eliphezulu ehlanganisa izakhiwo ze-hydroxypropyl methylcellulose negypsum. Le nhlanganisela emisha iphumela ekusebenzeni okuphezulu okunezicelo eziningi embonini yezokwakha.

I-Hydroxypropyl methylcellulose (HPMC):

1.1. Incazelo kanye nezakhiwo:

IHydroxypropyl methylcellulose, evame ukwaziwa nge-HPMC, i-cellulose ether etholakala ku-cellulose ye-polymer yemvelo. Ukugcinwa kwayo kahle kwamanzi, ukujiya kanye nezakhiwo zefilimu kuyenza ibe isithako esidumile ezimbonini ezihlukahlukene, kuhlanganise nezokwakha. I-HPMC ibonakala ngokuncibilika emanzini ashisayo nabandayo, ihlinzeka ngokuguquguquka kwezinhlelo zokusebenza ezahlukene.

1.2. Iqhaza ku-architecture:

Embonini yezokwakha, i-HPMC isetshenziswa kakhulu njengesengezo ezintweni ezisekelwe kusimende, osimende namapulasi e-gypsum. Amandla abo okubamba amanzi athuthukisa ukusebenza futhi andisa isikhathi sokumisa lezi zinto. I-HPMC futhi isiza ukuthuthukisa ukunamathela nokuqina, iyenze ibe yingxenye ebalulekile yokwakhiwa kwesakhiwo sesimanje.

I-Gypsum plaster:

2.1. Izithako nezici:

Ihlanganiswe ngokuyinhloko nge-calcium sulfate dihydrate, i-gypsum iyimpahla yokwakha esetshenziswa kabanzi eyaziwa ngokumelana nomlilo, ukwahlukanisa umsindo kanye nendawo ebushelelezi. Ivame ukusetshenziswa njengento yokuhlobisa izindonga nophahla, inikeza indawo enhle futhi ehlala njalo.

2.2. Isicelo siyakhiwa:

I-Gypsum plaster inezinhlobonhlobo zezicelo embonini yezokwakha, kuhlanganise nokuqedwa kwezindonga zangaphakathi, izakhi zokuhlobisa kanye nokubunjwa. Ukuguquguquka kwayo, ukusebenziseka kalula kanye nokumelana nomlilo okuhle kakhulu kwenza kube yisinqumo sokuqala samaphrojekthi wokwakha wezindawo zokuhlala nezohwebo.

I-HPMC eboshelwe i-gypsum plaster:

3.1. Inqubo yokukhiqiza:

Ukukhiqizwa kwegypsum eboshiwe ye-HPMC kubandakanya ukufakwa kwe-hydroxypropyl methylcellulose ku-matrix ye-gypsum. Lokhu kufezwa ngenqubo yokuxuba elawulwa ngokucophelela, ukuqinisekisa ukuthi izinhlayiya ze-HPMC zisatshalaliswa ngokulinganayo ngaphakathi kwe-gypsum matrix. Umphumela uba impahla eyinhlanganisela ezuza izinzuzo ze-HPMC kanye ne-gypsum.

3.2. Izici zegypsum eboshiwe ye-HPMC:

Inhlanganisela ye-HPMC ne-gypsum inikeza izakhiwo eziyingqayizivele eziyinhlanganisela. Lokhu kufaka phakathi ukusebenza okuthuthukisiwe, ukunamathela okuthuthukisiwe, isikhathi sokusetha esandisiwe kanye nokuqina okwandisiwe. Izithako ze-HPMC zisiza ukugcina umswakama, zivimbela ukomiswa ngaphambi kwesikhathi futhi ziqinisekise ukuphela okungaguquki nokushelelayo.

Ukusetshenziswa kwegypsum eboshiwe ye-HPMC:

4.1. Udonga luyaphela:

I-HPMC eboshelwe i-gypsum plaster ivame ukusetshenziswa njengempahla yokumboza odongeni. Ukusebenza kwayo okuthuthukisiwe kwenza kube lula ukuyifaka nokuqeda, okuholela endaweni ebushelelezi futhi ebukeka kahle. Isikhathi esinwetshiwe sokusetha esinikezwe i-HPMC siqinisekisa ukuthi umkhandi unesikhathi esanele sokufinyelela isiphetho esifiswayo.

4.2. Isitayela sokuhlobisa:

I-composite iphinde isetshenziselwe ukwenza ukubunjwa kokuhlobisa kanye nezakhi zezakhiwo. Ukuguquguquka kwayo kuvumela imiklamo nemininingwane eyinkimbinkimbi, ihlinzeka abaklami bezakhiwo nabaklami ngezinhlobonhlobo zamathuba okudala.

4.3. Ukulungisa nokubuyisela:

Ukhonkolo oboshiwe we-HPMC ulungele ukukhanda nokubuyisela amaphrojekthi lapho ukuhambisana kwayo nezindawo ezikhona zikakhonkolo nokuqina okuthuthukisiwe kudlala indima ebalulekile. Ivumela ukulungiswa okungenamthungo futhi iqinisekisa isikhathi eside sendawo elungisiwe.

Izinzuzo zegypsum eboshiwe ye-HPMC:

5.1. Thuthukisa ukucutshungulwa:

Ukwengezwa kwe-HPMC kuthuthukisa ukusebenza kwe-gypsum plaster, ukwenza isicelo nokuqeda kube lula. Lokhu kuzuzisa ikakhulukazi kuma-plasterers njengoba kuvumela ukulawula okukhudlwana nokunemba ngesikhathi senqubo yokuplasta.

5.2. Nweba isikhathi sokuqinisa:

Isikhathi esinwetshiwe sokusetha esinikezwe yi-HPMC siqinisekisa ukuthi umkhandi unesikhathi esanele sokuqedela isicelo futhi afinyelele umphumela oyifunayo. Lokhu kunenzuzo kumaphrojekthi amakhulu noma lapho kudingeka khona isikhathi sokumisa ukubambezeleka.

5.3. Thuthukisa ukunamathela:

I-HPMC isiza ukuthuthukisa ukunamathela, okuholela ebudlelwaneni obuqinile phakathi kwe-plaster kanye ne-substrate. Lesi sakhiwo sibalulekile ekomelezeni nasekuphileni isikhathi eside kwendawo eqediwe.

5.4. Ukugcinwa kwamanzi:

Ikhono le-HPMC lokubamba amanzi livimbela ukomiswa ngaphambi kwesikhathi kokhonkolo, okuholela ekucineni okungaguquki, okubushelelezi. Lokhu kubaluleke kakhulu ezindaweni ezomile noma lapho usebenza ezindaweni ezinkulu, lapho ukugcinwa kwamazinga omswakamo angashintshi kungaba yinselele.

5.5. Ukuhlukahluka komklamo:

Imvelo eyinhlanganisela yalesi simende esiboshiwe se-HPMC siyinikeza ukuguquguquka ekuklanyweni nasekusetshenzisweni kwayo. Ingabunjwa ibe yizinhlobonhlobo zezimo namafomu, okwenza ifaneleke kokubili izitayela zendabuko nezanamuhla zokwakha.

Ekuphetheni:

I-Hydroxypropylmethylcellulose (HPMC)-i-plaster eboshiwe imele intuthuko enkulu ezintweni zokwakha. Ngokuhlanganisa izakhiwo ezizuzisayo ze-HPMC ne-gypsum, le nhlanganisela ihlinzeka ngokusebenza okuthuthukisiwe, isikhathi sokusetha esandisiwe, ukunamathela okuthuthukisiwe nokugcinwa kwamanzi. Lezi zici zikwenza kube ukukhetha okuguquguqukayo futhi okubalulekile ezinhlobonhlobo zezinhlelo zokusebenza zezakhiwo, okuhlanganisa ukumbozwa kodonga, ukubumba kanye namaphrojekthi okulungisa. Njengoba imboni yezokwakha iqhubeka nokuvela, i-HPMC eboshelwe i-gypsum plaster igqama njengesixazululo esimeme nesisebenza kahle kakhulu sezinqubo zokwakha zesimanje.