Hydroxyethyl cellulose (HEC) ke sesebelisoa se tenyetsehang le se sebelisoang haholo ho pente le lipenteng. E sebeletsa mesebetsi e mengata, e ntlafatsa ts'ebetso, botsitso le thepa ea ts'ebeliso ea lihlahisoa tsena. Ka tlase ke tataiso e felletseng ea mokhoa oa ho sebelisa hydroxyethyl cellulose ka katleho lipenteng le lipenteng, e akaretsang melemo ea eona, mekhoa ea ts'ebeliso le lintlha tsa ho etsa.
Melemo ea Hydroxyethyl Cellulose ho Pente le Liaparo
Phetoho ea Rheology: HEC e fana ka phallo e lakatsehang le litšobotsi tsa ho leka-lekana ho pente le lipente, e li thusa ho ata ka ho lekana le ho fokotsa ho thella.
Ntlafatso ea Botsitso: E tsitsisa emulsion le ho thibela karohano ea mekhahlelo, e netefatsa kabo e ts'oanang ea li-pigment le li-filler.
Matlotlo a Ntlafalitsoeng a Tšebeliso: Ka ho fetola viscosity, HEC e etsa hore pente e be bonolo ho e sebelisa, ebang ke ka borashe, rolara, kapa spray.
Ho Boloka Metsi: HEC e na le litšobotsi tse ntle tsa ho boloka metsi, tse bohlokoa bakeng sa ho boloka lipente le lipente li sebetsa hantle, haholo-holo maemong a omileng.
Ho lumellana: HEC e lumellana le mefuta e mengata ea li-solvents, li-pigment le lintho tse ling tse tlatsetsang, e leng se etsang hore e lokele mekhoa e fapaneng.
Mekhoa ea Kopo
1. Ho Kopanya ka Omileng
Mokhoa o mong o tloaelehileng oa ho kenyelletsa HEC mefuteng ea pente ke ka ho kopanya ka omileng:
Mohato oa 1: Lekanya bongata bo hlokahalang ba phofo ea HEC.
Mohato oa 2: Kenya phofo ea HEC butle-butle likarolong tse ling tse omileng tsa motsoako.
Mohato oa 3: Etsa bonnete ba hore o kopanya hantle ho qoba ho kopana.
Mohato oa 4: Kenya metsi kapa motsoako butle-butle ha u ntse u kopanya ka ho tsoelang pele ho fihlela HEC e nolofalitsoe ka botlalo 'me motsoako o ts'oanang o fihlelleha.
Ho kopanya ka omileng ho loketse bakeng sa dihlahiswa moo ho hlokahalang taolo e nepahetseng hodima ho teteana ho tloha qalong.
2. Tokisetso ea Tharollo
Ho lokisa tharollo ea HEC pele o e kenyelletsa mofuteng oa pente ke mokhoa o mong o sebetsang:
Mohato oa 1: Halaletsa phofo ea HEC ka metsing kapa motsoakong o lakatsehang, u netefatse ho sisinyeha ho tsoelang pele ho thibela ho thehoa ha maqhutsu.
Mohato oa 2: Lumella nako e lekaneng hore HEC e nosetse le ho qhibiliha ka botlalo, hangata lihora tse 'maloa kapa bosiu bohle.
Mohato oa 3: Kenya tharollo ena ea setoko ho pente ha u ntse u hlohlelletsa ho fihlela botsitso le thepa e lakatsehang li fihlelleha.
Mokhoa ona o dumella ho sebetsana le ho kenyeletsoa ha HEC habonolo, haholo-holo tlhahisong e kgolo.
Mehopolo ea ho theha
1. Ho tsepamisa maikutlo
Khokahano ea HEC e hlokahalang mofuteng oa pente e fapana ho latela viscosity e lakatsehang le mokhoa oa ho e sebelisa:
Ditshebediso tse Fokotsang ho Koahela: Bakeng sa tshebediso ya borashe kapa rolara, mahloriso a tlase a HEC (0.2-1.0% ka boima) a ka lekana ho fihlella viscosity e hlokahalang.
Ditshebediso tse Koahelwang ka Bongata: Bakeng sa ditshebediso tsa ho fafatsa, ho ka hlokahala hore ho be le kgatello e phahameng (1.0-2.0% ka boima) ho thibela ho thella le ho netefatsa hore atomization e ntle.
2. Phetoho ea pH
PH ea pente e ka ama ho qhibiliha le ts'ebetso ea HEC:
Tekanyo e ntle ea pH: HEC e sebetsa hantle haholo ho pH e sa nke lehlakore ho isa ho e nang le alkaline e nyane (pH 7-9).
Phetoho: Haeba motsoako o na le asiti e ngata kapa alkaline e ngata, fetola pH o sebedisa di-additi tse loketseng tse kang ammonia kapa di-acid tsa organic ho ntlafatsa tshebetso ya HEC.
3. Mocheso
Mocheso o bapala karolo ea bohlokoa ho qhibiliheng le ho qhaleng ha HEC:
Metsi a batang a qhibilihang: Mekhahlelo e meng ea HEC e etselitsoe ho qhibiliha ka metsing a batang, e leng se ka nolofatsang ts'ebetso ea ho kopanya.
Ho Potlakisa Metsi a Futhumatsang: Maemong a mang, ho sebedisa metsi a futhumetseng ho ka potlakisa tshebetso ya ho ntsha metsi, empa mocheso o ka hodimo ho 60°C o lokela ho qojwa ho thibela ho senyeha ha polymer.
4. Ho lumellana le Lisebelisoa tse Ling
HEC e hloka ho lumellana le metsoako e meng e ka har'a motsoako ho qoba mathata a kang ho thehoa ha gel kapa karohano ea mekhahlelo:
Li-solvent: HEC e tsamaisana le litsamaiso tse thehiloeng metsing le tse thehiloeng ho li-solvent, empa tlhokomelo e lokela ho nkoa ho netefatsa hore li qhibiliha ka botlalo.
Mebala le Li-Filler: HEC e thusa ho tsitsisa mebala le li-filler, e netefatsa kabo e ts'oanang le ho thibela ho lula.
Lintho Tse Ling Tse Ekelitsoeng: Boteng ba li-surfactants, li-dispersants, le lintho tse ling tse ekelitsoeng bo ka ama ho teteana le botsitso ba motsoako o teteaneng oa HEC.
Malebela a Sebetsang bakeng sa Tšebeliso e Molemohali
Pele ho Qhibiliha: Ho qhibilihisa HEC ka metsing pele ho e eketsa motswakong wa pente ho ka thusa ho netefatsa kabo e tshwanang le ho thibela ho kopana ha mahlaka.
Ho Eketsa butle: Ha o eketsa HEC motswakong, etsa jwalo butle le ka ho sisinyeha ho sa kgaotseng ho qoba ho ruruha.
Ho Kopanya ka ho Chesa Haholo: Sebelisa metsoako e chesa haholo haeba ho khoneha, kaha e ka thusa ho fihlela motsoako o ts'oanang haholoanyane le taolo e betere ea viscosity.
Phetoho e Eketsehileng: Fetola mahloriso a HEC hanyane ka hanyane, o leke viscosity le thepa ea ts'ebeliso kamora ho eketsa ka 'ngoe ho fihlela botsitso bo lakatsehang.
Mathata a Tloaelehileng le Tharollo ea Mathata
Ho qhibilihisa: Haeba HEC e eketsoa kapele haholo kapa ntle le ho kopanya ho lekaneng, e ka etsa maqhutsu. Ho thibela sena, hasanya HEC ka metsing butle-butle ha o ntse o hlohlelletsa ka matla.
Ho se Tsitse ha ho Sebetsa: Liphetoho mochesong, pH, le lebelo la ho kopanya li ka lebisa ho se tsitse ha ho Sebetsa. Kamehla beha leihlo 'me u fetole liparamente tsena ho boloka ho tšoana.
Ho Foufala: HEC e ka kenya moya ka hara motsoako, e leng se etsang hore ho foufala. Sebelisa di-defoamer kapa di-anti-foaming agents ho fokotsa bothata bona.
Hydroxyethyl cellulose ke karolo ea bohlokoa haholo mefuteng ea pente le ho koahela ka lebaka la bokhoni ba eona ba ho ntlafatsa viscosity, botsitso le thepa ea ts'ebeliso. Ka ho utloisisa mekhoa e metle ea ho kenyelletsa HEC, ho fetola liparamente tsa ho etsa, le ho rarolla mathata a tloaelehileng, bahlahisi ba ka etsa lihlahisoa tsa pente tsa boleng bo holimo, tse tsitsitseng, le tse bonolo ho li sebelisa. Ebang ke ka ho kopanya ka omileng kapa ho lokisa tharollo, senotlolo se ho kopanya ka hloko, ho fetola pH, le taolo ea mocheso ho sebelisa melemo ea HEC ka botlalo.
Nako ea poso: Mots'eanong-28-2024