I-Hydroxypropyl Methylcellulose (HPMC) iyinto esetshenziswayo yezimboni esetshenziswa kabanzi edongeni le-Putty Powder Diach, ikakhulukazi izinhlelo zangaphakathi nezingaphandle.
Isingeniso se-HPMC Powder:
Ukuchazwa nokwakheka:
I-Hydroxypropyl Methylcellulose, okubhekiselwa kuyo njenge-HPMC, i-ether eguquliwe etholwa kususelwa ku-cellulose yemvelo. Ihlanganiswe ngokushintsha kwamakhemikhali i-cellulose, i-carbohydrate eyinkimbinkimbi etholakala ezindongeni zeseli zezitshalo. Ukuguqulwa kuhlanganisa ukwethulwa kwe-Hydroxypropyl kanye namaqembu we-methyl kusakhiwo se-cellulose, okuholele ekutheni i-polymer engenamanzi futhi eguquguqukayo.
Izakhiwo ezingokomzimba nezamakhemikhali:
I-Solubinity: I-HPMC iyanyibilika emanzini, yakha ikhambi elicacile nelingenamibala. I-Solubity ingashintshwa ngokushintsha izinga lokufaka esikhundleni (DS) ngesikhathi senqubo yokukhiqiza.
I-Viscosity: I-HPMC ifaka ukubonakala okulawulwayo nokungaguquki kwikhambi. Le mpahla ibalulekile edongeni ama-putty njengoba kuthinta ukusebenziseka kanye nezimpawu zohlelo lokusebenza.
I-Thermal Gelation: I-HPMC ikhombisa i-gelation eshisayo, okusho ukuthi ingakha ijeli lapho kufudunyezwa. Le mpahla ibalulekile kuzinhlelo zokusebenza ezithile lapho kudingeka khona u-Gelling.
Ukusetshenziswa kwe-HPMC edongeni uPutty:
Intellial Wall Putty:
1. Ukubopha kanye nokunamathelisa:
I-HPMC ithuthukisa izakhiwo ezibophayo ze-Interior Wall Puties, iqinisekisa ukunamathela okungcono kuma-substrates afana nokhonkolo, i-stucco noma eyomile.
Ukwakheka kwesakhiwo esiguquliwe se-HPMC kwakha ifilimu elincanyana ngaphezulu, ukuhlinzeka ngesibopho esiqinile nesihlala isikhathi eside.
2. Ukucinga kanye nokusebenziseka kalula kwesicelo:
Ukuvunyelwa okulawulwayo kwe-HPMC kunikeza ukusebenziseka okuhle kakhulu, okuvumela ukuthi kusetshenziswe kahle futhi kalula ezindaweni ezingaphakathi.
Kuvimbela ukugcwala nokuconsa ngesikhathi sohlelo futhi kuqinisekisa ukuhlanganiswa okufanayo.
3. Ukugcinwa kwamanzi:
I-HPMC isebenza njenge-ejenti yokugcina amanzi, ivimbela ukuhwamuka kwamanzi ngesikhathi sokulashwa. Lokhu kusiza ukuthuthukisa i-hydration ye-putty, okuholela ekuthuthukisweni kwamandla okungcono.
Udonga lwangaphandle uPutty:
1. Ukumelana Nesimo Sezulu:
I-HPMC ithuthukisa ukumelana nesimo sezulu kwama-pollies angaphandle odongeni futhi ivikela ngokumelene nemiphumela emibi yokukhanya kwelanga, imvula kanye nezinguquko zokushisa.
Ifilimu ye-polymer eyakhiwa yi-HPMC isebenza njengesithiyo, ivimbela ukungena komswakama nokugcina ubuqotho bokuhlanganiswa.
2. Ukumelana nokuqhekeka:
Ukuguquguquka kwe-HPMC kunomthelela ekumelaneni kokuqhekeka kodonga lwangaphandle lwamapulangwe. Ihlalisa ukunyakaza okuphansi ngaphandle kokuthinta ubuqotho be-coating.
Le mpahla ibaluleke kakhulu kwizicelo zangaphandle ezivezwa izingcindezi zemvelo.
3. Ukuqina:
I-HPMC ithuthukisa ukuqina kokuqina kwengaphandle kwe-putty ngokuthuthukisa ukumelana kwayo ku-abrasion, umthelela kanye nokuvezwa kwamakhemikhali.
Ifilimu evikelayo eyasungulwa yi-HPMC isiza ukwelula impilo ye-coating futhi yehlise isidingo sokulungiswa njalo.
Izinzuzo zokusebenzisa i-HPMC edongeni uPutty:
1. Ikhwalithi Eqinile:
I-HPMC iqinisekisa ukuthi odongeni ama-putty angezansi ekhwalithi engaguquki futhi ahlangane namazinga okusebenza adingekayo.
2. Thuthukisa ukukhiqizwa:
Ukubonakaliswa okulawulwayo kwe-HPMC kunikeza ukucubungulwa okungcono, okwenza inqubo yokufaka isicelo isebenze kahle futhi isebenziseke kalula.
3. Thuthukisa Adhesion:
Izakhiwo ezinamathelayo ze-HPMC zinikela ngokunamathela okuhle kakhulu, ziqinisekisa ama-putty anamathela kahle ezinhlotsheni ezahlukahlukene.
4. Okuhlukahlukene:
I-HPMC iyasebenziseka kalula futhi ingasetshenziswa ezinhlobonhlobo zezinto futhi ingenziwa ngokwezifiso ukuze uhlangabezane nezidingo ezithile zephrojekthi.
Ekuphetheni:
I-Hydroxypropylm methylcellulose (hpmc) powder isithako esiyisihluthulelo ku-Interior and Engaphandle Wall Flutty Amafomula. Izakhiwo zayo ezihlukile, kufaka phakathi i-soubity, ukulawulwa kwe-viscosity kanye namakhono okwakha amafilimu, kwenze ilungele ukuthuthukisa ukusebenza nokuqina kwezimbozo zodonga. Noma ngabe kusetshenziswe ngaphakathi ngaphakathi noma ngaphandle, ama-pollies odongeni aqukethe i-HPMC ahlinzeka ngekhwalithi eguqukayo, ukusebenza okuthuthukile kwesicelo nokuvikelwa okuhlala isikhathi eside ezicini zezemvelo. Njengoba imboni yezokwakha iyaqhubeka nokuvela, indima ye-HPMC edongeni ama-tutty ahlala elokuthola ukufeza ukuqeda okuphezulu nokuqina.
Isikhathi Seposi: Jan-25-2024