HPMC, eo hape e tsejoang e le hydroxypropyl methylcellulose, ke tlatsetso e sebelisoang hangata liindastering tse fapaneng.Indastering ea kaho, HPMC e sebelisoa haholo ho thepa e thehiloeng ho samente joalo ka putty powder, gypsum, le seretse sa samente.HPMC e bapala karolo ea bohlokoa ho ntlafatsa ts'ebetso ea li-putty powders ka ho fana ka ts'ebetso e ntle ea ho sebetsa, matla a kopanetsoeng le thepa ea ho boloka metsi.Leha ho le joalo, ha HPMC e sebelisoa ho putty powder, ketsahalo e bitsoang "foaming" e etsahala.Sehloohong sena, re hlahloba lisosa tsa blister le ho buisana ka litsela tsa ho li thibela.
Ho phatloha ke eng, hona ke hobane'ng ha ho etsahala?
Blistering ke ts'ebetso ea li-bubble tsa moea kapa li-blister holim'a phofo ea putty ka mor'a ho hahoa.Sena se ka etsahala hang ka mor'a kopo kapa ka mor'a nako e itseng, ho itšetlehile ka sesosa sa motheo.Blistering e ka bakoa ke lintlha tse 'maloa tse kenyelletsang ho lokisoa hampe ha substrate, kopo tlas'a maemo a mabe a tikoloho kapa tšebeliso ea thepa e sa lumellaneng.Mabaka a ho phophoma ha HPMC le putty powder ke a latelang:
1. Ho se lumellane pakeng tsa HPMC le lisebelisoa tse ling: HPMC e atisa ho sebelisoa hammoho le lisebelisoa tse ling tse kang li-superplasticizers, retarders, le li-air-entraining agents.Leha ho le joalo, haeba li-additives tsena li sa lumellane, ho ka fella ka ho phophoma.Sena se etsahala hobane li-additives li kena-kenana le bokhoni ba e mong oa ho etsa mosebetsi oa tsona, e leng se bakang motsoako o sa tsitsang le ho khomarela ho fokolang ho substrate.
2. Ho kopanya ho sa lekaneng: Ha HPMC e kopane le putty powder, ho kopanya ho loketseng ke habohlokoa haholo.Ho kopanya ho sa lekaneng ho ka etsa hore HPMC e kopane 'me e thehe lihlekehleke ka har'a motsoako.Lihlekehleke tsena li etsa matheba a fokolang holim'a phofo ea putty, e ka bakang marako.
3. Ho boloka metsi: HPMC e tumme ka ho boloka metsi, e leng molemo bakeng sa putty powder.Empa haeba phofo ea putty e fumana mongobo o mongata haholo, e tla baka blistering.Hangata sena se etsahala ha putty powder e sebelisoa maemong a mongobo o phahameng kapa holim'a libaka tse sa foleng hantle.
4. Mokhoa o fosahetseng oa ts'ebeliso: Mokhoa o fosahetseng oa ts'ebeliso le ona o ka baka makhopho.Ka mohlala, haeba putty e sebelisoa e teteaneng haholo, e ka tšoara lipokotho tsa moea ka tlas'a metsi.Lipululoana tsena tsa moea joale li ka atoloha 'me tsa baka ho phophoma.Ka mokhoa o ts'oanang, haeba putty e sebelisoa ka potlako haholo kapa ka matla a mangata, e tla theha maqhama a fokolang le substrate, e ka bakang ho phatloha.
Mokhoa oa ho Thibela ho Rata
Ho thibela ho phophoma ha HPMC le putty powders ho hloka tlhokomelo e hlokolosi ho lisebelisoa, mekhoa le maemo a tikoloho a amehang.Litlhahiso tse ling tsa ho thibela li-blister ke tsena:
1. Khetha li-additives tse lumellanang: Ha u sebelisa HPMC, ho bohlokoa ho khetha li-additives tse lumellanang le tse ling.Sena se thusa ho etsa bonnete ba hore motsoako o tsitsitse le hore motsoako o mong le o mong o etsa mosebetsi oa oona o reretsoeng ntle le ho kena-kenana le tse ling.
2. Hlohlelletsa ka mokhoa o ts'oanang: HPMC e lokela ho kopanngoa ka ho feletseng le putty powder ho etsa bonnete ba hore e ajoa.Sena se thusa ho thibela maqhubu le matheba a fokolang holim'a phofo ea putty.
3. Taolo ea mongobo: Ho laola mongobo ke habohlokoa ha u sebelisa HPMC le putty powder.Etsa bonnete ba hore phofo ea putty ha e kopane le mongobo o feteletseng nakong ea kaho, 'me u qobe ho haha tlas'a mongobo o phahameng kapa maemo a mongobo.Haeba ho hlokahala, sebelisa dehumidifier ho fokotsa boemo ba mongobo moeeng.
4. Sebelisa Mokhoa o Nepahetseng oa Kopo: Mokhoa o nepahetseng oa ho sebelisa le ona o tla thusa ho thibela ho phatloha.Tšela phofo ea putty ka sekhahla se tšesaane, se lekanang 'me u se sebelise ho substrate ka trowel kapa sesebelisoa se seng se loketseng.Qoba ho sebelisa putty phofo e teteaneng haholo, kapele kapa ka matla a mangata.
5. Nahana ka substrate: The substrate eo putty powder e sebelisoa le eona e ama kotsi ea ho phatloha.Etsa bonnete ba hore substrate e phekotsoe hantle, e hloekisitsoe le ho lokisoa pele u sebelisa putty powder.Haeba ho hlokahala, primer e ka sebelisoa ho ntlafatsa maqhama pakeng tsa substrate le putty powder.
Qetellong, blistering e ka ba bothata bo nyahamisang le bo sa bonahaleng ha u sebetsa le HPMC le putty powder.Leha ho le joalo, boemo bona bo ka thibeloa ka ho ela hloko lisebelisoa, mekhoa le maemo a tikoloho a amehang.Ka ho khetha li-additives tse lumellanang, ho kopanya hantle, ho laola mongobo, ho sebelisa mekhoa e nepahetseng ea kopo, le ho nahana ka substrate, u ka etsa bonnete ba hore nako e 'ngoe le e 'ngoe ho na le boreleli, ntle le bubble.Joaloka moetsi ea ka sehloohong oa HPMC, re ikemiselitse ho fana ka lihlahisoa tsa boleng bo holimo tse khotsofatsang litlhoko tsa bareki ba rona.Re tšepa hore sehlooho sena se thusitse ho utloisisa hore na ke hobane'ng ha HPMC le putty powder foam le mokhoa oa ho e thibela.
Nako ea poso: Jul-20-2023