I-HPMC, eyaziwa nangokuthi i-hydroxypropyl methylcellulose, iyisengezo esivame ukusetshenziswa ezimbonini ezahlukahlukene. Embonini yezokwakha, i-HPMC isetshenziswa kakhulu ezintweni ezisekelwe kusimende njenge-putty powder, i-gypsum, nodaka lukasimende. I-HPMC idlala indima ebalulekile ekuthuthukiseni ukusebenza kwe-putty powders ngokunikeza ukusebenza okuhle, amandla ahlangene kanye nezindawo zokugcina amanzi. Kodwa-ke, lapho i-HPMC isetshenziselwa i-putty powder, kwenzeka into ebizwa ngokuthi "i-foaming". Kulesi sihloko, sihlola izimbangela zamabhamuza futhi sixoxe ngezindlela zokuzivimbela.
Kuyini i-blistering futhi kungani kwenzeka?
Amabhamuza yisimo samabhamuza omoya noma amabhamuza ebusweni bempushana ephutheka ngemva kokwakhiwa. Lokhu kungenzeka ngokushesha ngemva kokufaka isicelo noma ngemva kwesikhathi esithile, kuye ngembangela ewumsuka. Ukuqhuma kwamabhamuza kungabangelwa izinto eziningi ezihlanganisa ukungalungiseki kahle kwe-substrate, ukusetshenziswa ngaphansi kwezimo zemvelo ezimbi noma ukusetshenziswa kwezinto ezingahambelani. Izizathu zokugwaza kwe-HPMC ne-putty powder zimi kanje:
1. Ukungahambisani phakathi kwe-HPMC nezinye izithasiselo: I-HPMC ivamise ukusetshenziswa kanye nezinye izithasiselo ezifana nama-superplasticizers, retarders, nama-ejenti angenisa umoya. Kodwa-ke, uma lezi zithako zingahambelani, kungase kuphume amagwebu. Lokhu kwenzeka ngoba izithasiselo ziphazamisa ikhono lomunye lokwenza umsebenzi wazo ohlosiwe, okuholela engxubeni engazinzile kanye nokunamathela okubi ku-substrate.
2. Ukuxuba okunganele: Uma i-HPMC ixubene ne-putty powder, ukuxuba okufanele kubaluleke kakhulu. Ukuxuba okunganele kungabangela i-HPMC ukuthi ihlangane futhi yakhe iziqhingi enhlanganisweni. Lezi ziqhingi zenza izindawo ezibuthakathaka ebusweni be-putty powder, okungabangela amabhamuza.
3. Ukugcinwa kwamanzi: I-HPMC idume ngokugcina amanzi, alungele i-putty powder. Kodwa uma i-putty powder ithola umswakama omningi, izobangela amabhamuza. Lokhu kuvame ukwenzeka lapho i-putty powder isetshenziswa ezimeni ezinomswakama ophezulu noma ezindaweni ezingazange zelapheke kahle.
4. Indlela yokusebenzisa kabi: Indlela yokusebenzisa kabi ingabangela amabhamuza. Isibonelo, uma i-putty isetshenziswa kakhulu, ingase ibambe amaphakethe omoya ngaphansi komhlaba. Lawa mabhamuza angabese anda futhi abangele ukukhihliza amagwebu. Ngokufanayo, uma i-putty isetshenziswa ngokushesha kakhulu noma ngamandla amakhulu, izokwakha isibopho esibuthakathaka ne-substrate, engase futhi ibangele amabhamuza.
Ungakunqanda Kanjani Amabhamuza
Ukuvimbela ukukhihliza amagwebu lapho usebenzisa i-HPMC kanye nama-putty powders kudinga ukunakwa ngokucophelela ezintweni, amasu kanye nezimo zemvelo ezihilelekile. Nawa amanye amathiphu okuvimbela amabhamuza:
1. Khetha izithasiselo ezihambisanayo: Uma usebenzisa i-HPMC, kubalulekile ukukhetha izithasiselo ezihambisanayo. Lokhu kusiza ukuqinisekisa ukuthi ingxube izinzile nokuthi isithako ngasinye senza umsebenzi waso ohlosiwe ngaphandle kokuphazamisa ezinye.
2. Hlanganisa ngokulinganayo: I-HPMC kufanele ihlanganiswe ngokugcwele ne-putty powder ukuze kuqinisekiswe ukusatshalaliswa okulinganayo. Lokhu kusiza ukuvimbela izigaxa nezindawo ezibuthakathaka ebusweni be-putty powder.
3. Ukulawula umswakama: Ukulawula umswakama kubalulekile uma usebenzisa i-HPMC ne-putty powder. Qinisekisa ukuthi i-putty powder ayihlangani nomswakama owedlulele ngesikhathi sokwakhiwa, futhi ugweme ukwakhiwa ngaphansi komswakama ophezulu noma izimo ezimanzi. Uma kunesidingo, sebenzisa i-dehumidifier ukunciphisa umswakamo osemoyeni.
4. Sebenzisa Indlela Efanele Yokufaka Isicelo: Indlela efanele yokufaka isicelo nayo izosiza ekuvimbeleni amabhamuza. Gcoba i-putty powder endaweni encane, elinganayo futhi uyifake ku-substrate ngetrowel noma esinye isisetshenziswa esifanele. Gwema ukusebenzisa i-putty powder ibe ugqinsi kakhulu, ngokushesha kakhulu noma ngamandla amakhulu.
5. Cabangela i-substrate: I-substrate lapho i-putty powder isetshenziswa futhi ithinta ingozi yokuqhuma. Qinisekisa ukuthi i-substrate yelashwe kahle, ihlanzwa futhi ilungisiwe ngaphambi kokufaka i-putty powder. Uma kunesidingo, i-primer ingasetshenziswa ukuthuthukisa isibopho phakathi kwe-substrate ne-putty powder.
Ekuphetheni, ukuqhuma kungase kube inkinga ekhungathekisayo futhi engabonakali lapho usebenza ne-HPMC kanye ne-putty powder. Kodwa-ke, lesi simo singavinjelwa ngokunaka okufanele ezintweni, amasu kanye nezimo zemvelo ezihilelekile. Ngokukhetha izithasiselo ezihambisanayo, ukuxuba kahle, ukulawula umswakama, ukusebenzisa amasu okusebenza afanele, nokucabangela i-substrate, ungaqinisekisa ukuqedwa okubushelelezi, okungenayo ibhamuza njalo. Njengomkhiqizi ohamba phambili we-HPMC, sizibophezele ekuhlinzekeni ngemikhiqizo yekhwalithi ephezulu ehlangabezana nezidingo zamakhasimende ethu. Sithemba ukuthi lesi sihloko sibe usizo ekuqondeni ukuthi kungani i-HPMC ne-putty powder foam nokuthi ungayivimbela kanjani.
Isikhathi sokuthumela: Jul-20-2023