Ka nako e ts'oanang, e ka ntlafatsa ka mokhoa o utloahalang matla a khatello le matla a ho kuta aHPMC hydroxypropyl methyl cellulose, ntlafatsa phello ea 'nete ea kaho ea boenjiniere, ntlafatsa katleho. HPMC hydroxypropyl methyl cellulose e ka ntlafatsa matla a sekhomaretsi a phofo ea putty, ea fokotsa boemo ba ho emisoa, ho netefatsa katleho ea kaho ea boenjiniere. Hydroxypropyl methyl cellulose e ka eketsa nako ea ho sebetsa le ho sebetsana le bothata ba matla a ho hatella a se nang letho le a sa lekaneng ts'ebetsong ea kaho ea boenjiniere.
Tshebetso e phahameng ya ho thibela metsi ya seretse sa kaho ya boenjiniere le seretse sa putty e ka etsa hore konkreite e tswakane ka ho lekaneng, mme ho hlakile hore e ka ntlafatsa matla a ho hatella a seretse. Ka nako e ts'oanang, matla a ho hatella le matla a ho qekisa a hydroxypropyl methyl cellulose di ka ntlafatswa ka ho lekaneng ho ntlafatsa phello ya nnete ya kaho ya boenjiniere le ho ntlafatsa bokgoni.
Mora oa ho hanyetsa mongobo,HPMChydroxypropyl methyl cellulose, phello ea hydroxypropyl methyl cellulose ka har'a phofo ea putty, ho thibela ho oma le ho oma ho bakoang ke phallo e potlakileng haholo ea metsi. Hydroxypropyl methyl cellulose e ka ntlafatsa matla a khomaretso a phofo ea putty, ea fokotsa boemo ba ho emisoa, ea netefatsa katleho ea kaho ea boenjiniere.
Senotlolo sa HPMC hydroxypropyl methyl cellulose se nang le metsi a notlellang, ho teteana, ho kolobisa le liphello tse ling, ho teteana, ho kolobisa le liphello tse ling li na le phello e itseng ea pele ea ho beha. Hydroxypropyl methyl cellulose e ka eketsa nako ea ho sebetsa le ho sebetsana le bothata ba matla a ho hatella a se nang letho le a sa lekaneng ts'ebetsong ea kaho ea boenjiniere.
HPMC hydroxypropyl methyl cellulose ka har'a seretse se sireletsang leboteng e bapala karolo ea bohlokoa phellong ea ho kopanya, 'me e eketsa matla a ho hatella a thepa e tala. Seretse se bonolo haholo ho se koahela, se ntlafatsa katleho, ka mosebetsi oa motheo oa ho emisa ho thibela phallo le phello e sebetsang. Ts'ebetso ea ho koala metsi ea hydroxypropyl methyl cellulose e ka eketsa nako ea ho sebetsa ha seretse, ea ntlafatsa khanyetso ea ho kopanngoa le ho tiisoa, ea ntlafatsa boleng ba bokaholimo, le ho ntlafatsa matla a ho hatella a ho kopanya.
Sehokelo sa dithaele se qhibilihang ka metsing se tlosa tlhoko ea lithaele le metheo ea fatše e kolobisitsoeng kapa e metsi, e ntlafatsa matla a ho hatella a ho kopanya. Nako ea kaho ea boenjiniere ba lerōle e telele, e hlokolosi, e lekanang, e bonolo ea kaho ea boenjiniere, e nang le khanyetso e ntle ea mongobo.
Lefapheng la ho penta ka tlhaho ka latex, hydroxypropyl methyl cellulose e ka sebelisoa e le moemeli oa ho etsa filimi, tackifier, demulsifier le thickener, e le hore filimi ea polasetiki e be le khanyetso e betere ea ho tsofala, ho phalla le ho khomarela. PH e sebelisoang ho ntlafatsa tsitsipano ea interfacial e hlalositsoe hantle, 'me motsoako o nang le tharollo ea organic o motle ebile o boreleli.
Nts'etsopele ea moruo Liaparo tsa meralo li na le matla a matle, metsi a kenellang hantle 'meleng le ho hanyetsa botsofali hantle. Moralo oa moralo oa foromo ea 'nete ea ho roala majoe ke oa bohlokoa haholo. Lacquer ea boleng bo holimo e entsoe ka emulsion e hloekileng ea styrene-acrylic ea hoo e ka bang 300KG, tharollo ea metsi ea tlhaho ea majoe ea 650KG le likarolo tse ling. Li-lacquer tsa 'nete tsa boleng bo holimo li khetholloa ka litlolo tse ngata tse nosetsang. Ha motsoako oa metsi oa emulsion e le 50%, bophahamo ba emulsion e nosetsang ea 300KG kamora ho omisa ke lilithara tse ka bang 150, 'me bophahamo ba lehlabathe le boima la 650KG ke lilithara tse ka bang 228. Ke hore, tabeng ena, pente ea 'nete ea majoe (boleng ba mahloriso a 'mala) ke 60%. Ka lebaka la boholo bo boholo ba likaroloana le ponahalo e sa tloaelehang ea lehlabathe le lesesaane, tlas'a motheo oa tlhahlobo e itseng ea boholo ba likaroloana, ho ka etsahala hore ebe ho na le mahloriso a CPVC).
Bakeng sa viscosifier, haeba ho khethoa viscosity e loketseng ea cellulose, sekoahelo sa lebota la kantle se ka hlahisa lera la pente le qaqileng haholoanyane, le tebileng haholoanyane, e le ho fihlela lipehelo tse tharo tsa sekoahelo sa lebota la kantle. Melao e meraro ea ho roala kaho. Ha e le hantle, ts'ebeliso ea majoe a mangata a moruo le a sebetsang a qi, thane ea solvent ea risepe ea sephiri ea 100-160kg, lehlabathe la poleiti ea mebala ea 750kg, 20kg (ho kenyeletsoa le li-additives tsa ho roala, chefo e bolaeang likokoanyana, li-fungicides, likhomaretsi, jj.), lihlahisoa tse ling tsa metsi le tlhokomelo ea letlalo. Mofuta ona oa pente ea majoe ea 'nete ea PVC ka kakaretso e bohareng ba 75%? Pakeng tsa 85%, ts'ebetsong ea ts'ebetso e omisitsoe, ho roala pente ea majoe ea 'nete ea 'nete ho thata ho theha lera la pente le qaqileng le le tiileng. Ka hona, mokhoa oa ho sebelisa ka botlalo phello ea risepe ea sephiri ea emulsion e fokolang haholo, e le hore sekoahelo se be se lekanang ka hohle kamoo ho ka khonehang.
Liaparo tsa 'nete tsa kaho ea majoe li na le litšobotsi tsa viscosity e tlase (boima bo phahameng ba limolek'hule). Ka lebaka la keketseho ea theko ea thepa ea cellulose, viscosity ea cellulose e sebelisitsoeng e fetoloa ho tloha ho 30000 ho ea ho 50000,80000,100000, leha e ka eketsoa ka 200000, sepheo ke ho fokotsa kakaretso ea cellulose ho tloha methyl cellulose (HEC) ho ea ho hydroxyl acrylic cellulose (HPMC); Tšebeliso ea methyl methyl cellulose HPMC e tla fokotsa haholo ho thibela metsi ha pente ea 'nete ea kaho ea majoe, ebe e ntlafatsa viscosity ea cellulose (boima ba limolek'hule bo amanang) e tla ba qeto ea 'nete ea pente ea kaho ea majoe? Karabo ke hore ts'ebetso ea lera la pente ea majoe e tla mpefala le ho feta!
HPMC e ka aroloa ka mefuta e qhibilihang hang-hang le e futhumatsang. Ha metsi a batang a hasana ka potlako mme a kokobela ka metsing, HPMC e ka aroloa ka mefuta e qhibilihang hang-hang le e futhumatsang. Nakong ena, mokelikeli ha o na viscosity, hobane HPMC e hasana feela ka metsing, 'me ha ho na kutloisiso ea 'nete ea ho qhibiliha. Kamora metsotso e ka bang 2, viscosity ea mokelikeli e atoloha butle, e hlahisa tharollo e bonaletsang ea colloid e viscous. Ha lihlahisoa tse chesang tsa organic solvent li bokellana ka metsing a batang, li ka hasana ka potlako ka metsing a chesang 'me tsa nyamela ka metsing a chesang. Ha mocheso o potolohileng o fokotseha ho isa tekanyong e itseng ea mocheso, viscosity e tla etsahala butle-butle ho fihlela tharollo e bonaletsang ea colloidal e viscous e hlakileng e hlahisoa. Mofuta oa solvent ea organic ea mocheso o sebelisoa feela ka har'a phofo ea putty ea leboteng le seretse sa ka hare. Ka har'a superglue ea metsi le liphahlo, ho na le palo e ke keng ea sebelisoa. Mofuta oa ho qhibiliha ka potlako o na le sehlopha sa ts'ebeliso e akaretsang. E ka sebelisoa e le phofo ea putty ea leboteng le seretse sa ka hare, 'me superglue ea eona ea metsi le seretse sa eona. Ha ho na lithibelo.
Ho qhibiliha ha metsi a chesang: hobane HPMC ka metsing a chesang ha e qhibilihe, kahoo HPMC e hokahaneng ea pele e ka hasana ka ho lekana ka metsing a chesang, ebe e qhibiliha ka potlako ha e pholile. Mekhoa e 'meli ea khale e hlalosoa ka tsela e latelang:
1) Kenya metsi a chesang ao u a hlokang ka sejaneng 'me u a futhumatse ho fihlela ho 70℃. Kopanya butle-butle, eketsa hydroxypropyl methyl cellulose butle-butle, butle-butle HPMC e phaphametse holim'a noka, ebe butle-butle u hlahisa seretse se pholileng ka har'a motsoako.
2) Kenya karolo ea boraro kapa karolo ea boraro ea metsi ka sejaneng, u a futhumatse ho fihlela ho 70℃, u a futhumatse ho fihlela ho 70℃ ho hasanya HPMC, 'me u lokise seretse sa metsi a chesang; Metsi a batang a setseng a eketsoa seretseng se chesang ebe a kopanngoa le motsoako oa kamora ho phola.
Mokhoa oa ho kopanya phofo: Phofo ea HPMC e nang le blender le metsoako e meng e mengata ea lik'hemik'hale tsa phofo e na le motsoako o lekaneng, ebe o eketsa metsi ho qhibiliha. Nakong ena, HPMC e ka qhibiliha haeba ho se na agglomeration, hobane sekhutlo se seng le se seng se senyenyane ke phofo e nyane ea HPMC, ha metsi a tla qhibiliha hang-hang - mofuta ona oa tsela ke feela ts'ebeliso ea bahlahisi ba phofo ea lebota le ka hare le putty. [HPMC] e le moemeli oa ho tiisa le moemeli oa mongobo ka har'a seretse sa putty sa lebota le ka hare.
Ena ke taboho e tloaelehileng ea maiketsetso ea hydroxypropyl methyl cellulose (HMPC), e haufi le ntho ea viscoelastic (haholo-holo mucin) meokhong. E khomarela bokaholimo ba leihlo ka ho monya polymer, 'me e etsisa karolo ea mucin ea conjunctival, e le ho ntlafatsa boemo bo fokotsehileng ba mucin ka leihlong le ho eketsa phello ea ho kolobisa ea cornea.
Ho phofo ea putty, ho teteana, ho boloka metsi le kaho ea mesebetsi e meraro. Ho teteana, cellulose e ka teteana ho fihlela e emisoa, e le hore tharollo e lule e lekana ho ea holimo le tlase e le karolo ea ho leketla ho thibela phallo. Ho boloka metsi: etsa hore phofo ea putty e ome butle, calcium e bohlooho e thusang ketsong ea karabelo ea metsi. Kaho: setlolo sa cellulose, se ka etsa hore phofo ea putty e be le kaho e ntle. HPMC ha e nke karolo liketsong life kapa life tsa lik'hemik'hale, empa e bapala karolo e tšehetsang feela.
Pente ea sebopeho e tenyetseha haholoanyane khethong ea 'mala, 'me e ka fihlella phello e ntle ea moralo oa bonono, 'me pente ea 'nete ea majoe ha ho phehelloa mofuta oa tlhaho o phelang, e molemo ho feta pente ea sebopeho, e 'ngoe le e 'ngoe e na le matla a eona. Pente ea sebopeho le lacquer ts'ebetsong ea tlhahiso, e le ho boloka 'mala oa pele ka ho sa feleng, ka kakaretso ts'ebetsong ea ho qetela, re tlameha ho sebelisa varnish (oli e bobebe) ho fafatsa ho sireletsa phello ea bona ea bonono kapa phello ea majoe.
Pente ea 'mala oa lacquer ke mofuta oa pente, e sebelisoang haholo-holo bakeng sa mokhabiso oa lebota. Webosaete ea semmuso ea seretse sa diatom ea tlhaho e akaretsa liphapang tse ling lipakeng tsa pente ea 'mala oa lacquer le lacquer, pente ea 'mala oa lacquer le mokhoa oa ho khetholla lacquer, tse latelang li ikhetha ho bona phapang lipakeng tsa pente ea lacquer le 'mala oa lacquer.
Litheko tse phahameng tsa latex ea boleng bo holimo, bahlahisi e le ho boloka litšenyehelo, eketsa karolo e nyane ea emulsion, kamora ho etsa hore pente ea majoe e omelle, ha e na bongata bo lekaneng, filimi ea pente e na le sekhahla se seholo, matla a khatello aa fokotseha, hang ha u kopana le boemo ba leholimo ba pula ka nako e telele, pula e tla kenella filiming ea pente, pente ea majoe e be tšoeu.
Bahlahisi ba bang ba etsang lacquer, hangata ba eketsa cellulose e ngata ea carboxymethyl, hydroxyethyl cellulose e le thickener, lintho tsena li qhibiliha ka metsing kapa lia hydrophilic, filimi ea ho roala e setseng ka har'a lera, e fokotsa haholo ho hanyetsa metsi ha ho roala.
Nako ea poso: Phuptjane-09-2022