Ka nako e ts'oanang, e ka ntlafatsa ka mokhoa o utloahalang matla a hatellang le matla a ho kuta aHPMC hydroxypropyl methyl cellulose, ho tsoela pele ho ntlafatsa phello ea sebele ea kaho ea boenjiniere, ho ntlafatsa katleho. HPMC hydroxypropyl methyl cellulose e ka ntlafatsa matla a sekhomaretsi a putty powder, ho fokotsa boemo ba ho emisa, ho etsa bonnete ba 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 molemong oa kaho ea boenjiniere.
Ts'ebetso e phahameng ea ho notlela metsi ea seretse sa moaho oa boenjiniere le seretse sa putty se ka etsa hore konkreite e kopane ka ho lekaneng, 'me ho hlakile hore e ka ntlafatsa matla a tlamang a seretse. Ka nako e ts'oanang, matla a khatello le matla a ho kuta a hydroxypropyl methyl cellulose a ka ntlafatsoa ka mokhoa o utloahalang ho ntlafatsa phello ea sebele ea kaho ea boenjiniere le ho ntlafatsa katleho.
Mora oa ho hanyetsa mongobo,HPMChydroxypropyl methyl cellulose, phello ea hydroxypropyl methyl cellulose ka putty powder, ho thibela ho omisa le ho omisa ho bakoang ke ho phalla ha metsi ka potlako haholo. Hydroxypropyl methyl cellulose e ka ntlafatsa matla a ho khomarela a putty powder, ho fokotsa boemo ba ho emisa, ho netefatsa katleho ea kaho ea boenjiniere.
HPMC hydroxypropyl methyl cellulose key e nang le ho notlela metsi, ho teteana, ho kolobisa le litlamorao tse ling, ho teteana, ho kolobisa le litlamorao tse ling ho na le phello e itseng ea ho qala. 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 molemong oa kaho ea boenjiniere.
HPMC hydroxypropyl methyl cellulose ka har'a seretse sa ho kenya letsoho leboteng e bapala karolo ea bohlokoa molemong oa tlamahano, 'me e matlafatsa matla a hatellang a thepa e tala. Seretse se bonolo haholo ho koahela, ho 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 ea seretse, ea ntlafatsa ho hanyetsa ho kopanya le ho tiisa, ho ntlafatsa boleng ba bokaholimo, le ho ntlafatsa matla a khatello ea tlamahano.
Lithaele tse qhibilihang haholo ka metsi li tlosa tlhokahalo ea lithaele le metheo ea fatše e kolobisitsoeng pele kapa e kolobileng, e leng ho ntlafatsa ho matlafatsa matla a khatello ea tlamahano. Nako ea kaho ea boenjiniere ba slurry ke nako e telele, e hlokolosi, e leka-lekaneng, kaho e bonolo ea boenjiniere, e nang le khanyetso e ntle ea mongobo.
Sebakeng sa liphahlo tsa tlhaho tsa 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 ho hanyetsa ho apara hantle, ho phalla ha metsi le ho khomarela. PH e sebelisoang ho ntlafatsa tsitsipano ea sefahleho e hlalosoa hantle, 'me motsoako o nang le motsoako oa organic o motle ebile o na le boreleli bo botle.
Tsoelo-pele ea Moruo Liaparo tsa meralo li na le matla a matle, ho kenella ka matla ha metsi le ho hanyetsa botsofali hantle. Morero oa moralo oa moralo oa ho roala ka majoe ke oa bohlokoa haholo. Lithane tsa lacquer ea boleng bo holimo e entsoe ka emulsion e ka bang 300KG e hloekileng ea styrene-acrylic, 650KG e hloekileng ea tlhaho ea tlhaho ea metsi a metsi le likarolo tse ling. Li-lacquers tsa boleng bo phahameng li khetholloa ke litlolo tse ngata tse mongobo. Ha motsoako oa mokelikeli oa emulsion ke 50%, molumo oa emulsion ea 300KG e mongobo ka mor'a ho omisa e ka bang lilithara tse 150, 'me bophahamo ba lehlabathe le boima ba 650KG ke hoo e ka bang lilithara tse 228. Ke ho re, tabeng ena, pente ea 'nete ea majoe (boleng ba mahloriso a mebala ea mebala) ke 60%. Ka lebaka la boholo bo boholo ba likaroloana le ponahalo e sa tloaelehang ea lehlabathe le letle, tlas'a motheo oa tlhahlobo e itseng ea boholo ba likaroloana, lerako le ommeng la bokantle le ka 'na la ba ho pota-potile boleng ba mahloriso ba CPVC).
Bakeng sa viscosifier, haeba selulose viscosity e loketseng e khethiloe, ho roala lebota la bokantle ho ka hlahisa pente e nang le lintlha tse ngata, e tsitsitseng haholoanyane, e le ho finyella lipehelo tse tharo tsa ho roala lebota ka ntle. Melao e meraro ea ho haha liaparo. Ha e le hantle, ho sebelisoa ha majoe a mangata a moruo le a sebetsang a qi, lithane tse ngata tsa setlolo sa sekhukhu sa 100-160kg, 750kg lehlabathe le mebala-bala, 20kg (ho akarelletsa le li-additives, chefo e bolaeang likokoanyana, li-fungicides, li-adhesives, joalo-joalo), tse ling kaofela tsa metsi le lihlahisoa tsa tlhokomelo ea letlalo. Mofuta ona oa pente ea 'nete ea lejoe la PVC ka kakaretso bohareng ba 75%? Pakeng tsa 85%, ts'ebetsong ea ts'ebetso e omisitsoe, 'nete ea sebele ea pente ea majoe e thata ho theha lesela le qaqileng le le thata la pente. Ka hona, mokhoa oa ho sebelisa ka botlalo ho feta e fokolang moisturizing emulsion sephiri risepe phello, e le hore barbotage ka hohle kamoo ho ka khonehang symmetrical.
Liaparo tsa sebele tsa mohaho oa majoe li na le litšobotsi tsa viscosity e tlaase (boima bo phahameng ba molek'hule). Ka lebaka la keketseho ea theko ea thepa ea cellulose, viscosity ea cellulose e sebelisitsoeng e fetotsoe ho tloha ho 30000 ho ea ho 50000,80000,100000, leha e ka eketseha ka 200000, sepheo ke ho fokotsa kakaretso ea selulose ho tloha methyl cellulose (HEC) ho ea hydroxylMC (HP) Tšebeliso ea methyl methyl cellulose HPMC e tla fokotsa haholo ho lelekoa ha metsi ha pente ea 'nete ea moaho oa majoe, ebe e ntlafatsa viscosity ea selulose (boima ba molek'hule) e tla ba sephetho sa ts'ebetso ea ts'ebetso ea pente ea thepa ea majoe ea sebele? Karabo ke hore ts'ebetso ea lera la pente ea majoe e tla mpefala le ho feta!
HPMC ka aroloa ka hang-hang le mocheso qhibilihang ka har'a mefuta e. Ha metsi a batang a qhalana ka potlako 'me a kokobela ka metsing, HPMC e ka aroloa ka mefuta ea hang-hang le ea mocheso. Ka nako ena, mokelikeli ha o na viscosity, hobane HPMC e qhalakanngoa feela metsing, 'me ha ho na moelelo oa sebele oa ho qhibiliha. Kamora metsotso e ka bang 2, viscosity ea mokelikeli e hola butle, e hlahisa tharollo e hlakileng ea viscous colloid. Ha lihlahisoa tse chesang tse qhibilihisang ka metsing li bokellana metsing a batang, li ka qhalana ka potlako metsing a chesang ’me tsa qhalana metsing a chesang. Ha mocheso oa tikoloho o fokotsehile ho isa tekanyong e itseng ea mocheso, viscosity e tla etsahala butle-butle ho fihlela ho hlahisoa tharollo e hlakileng ea viscous colloidal. Mofuta oa motsoako oa motsoako o chesang o sebelisoa feela ka har'a lebota la putty powder le seretse. Ka superglue ea metsi le li-coatings, ho na le baahi ba ke keng ba sebelisoa. Mofuta o potlakileng - oa ho qhibiliha o na le sehlopha sa kopo e akaretsang. E ka sebelisoa e le phofo e ka hare ea lebota le seretse, le sekhomaretsi sa eona sa mokelikeli le ho roala. Ha ho na taboo.
Ho qhibiliha ha metsi a chesang: hobane HPMC ka metsing a chesang ha e qhibilihe, kahoo HPMC e ka har'a sehokelo sa pele e ka qhalakanngoa ka ho lekana metsing a chesang, ebe e qhibiliha ka potlako ha e pholile. Litsela tse peli tsa khale li hlalosoa ka tsela e latelang:
1) Kenya metsi a chesang ao u a hlokang ka sejaneng 'me u a chese ho isa ho 70 ℃. Butle-butle kopanya, butle-butle eketsa hydroxypropyl methyl cellulose, butle-butle HPMC e phaphametseng nokeng, ebe butle-butle e hlahisa seretse sa sehatsetsing sa sehatsetsi ka har'a motsoako.
2) Eketsa 1/3 kapa 2/3 ea metsi ka har'a sekepe, e chese ho 70 ℃, e chese ho 70 ℃ ho qhala HPMC, 'me u lokise seretse sa metsi a chesang; Joale metsi a batang a setseng a kenngoa ho seretse se chesang 'me a kopantsoe le motsoako oa kamora ho pholile.
Mokhoa oa ho kopanya phofo: Phofo ea HPMC e nang le blender le metsoako e meng e mengata ea phofo ea lik'hemik'hale e lekaneng, ebe u eketsa metsi ho qhibiliha. Ka nako ena, HPMC ka qhibiliha tabeng ea ha ho agglomeration, hobane mong le e mong hukung e nyenyane feela e nyenyane HPMC phofo, ha metsi a tla hang-hang qhala - mofuta ona oa tsela ke feela tshebediso ya ka hare leboteng putty phofo le baetsi ba seretse. [HPMC] joalo ka sesebelisoa sa tackifying le moisturizing seretse sa putty sa lebota le kahare.
Ena ke meokho ea maiketsetso ea hydroxypropyl methyl cellulose (HMPC), e haufi le ntho ea viscoelastic (haholo-holo mucin) ka likhapha. E khomarela ka holim'a leihlo ka ho kenngoa ha polymer, 'me e etsisa karolo ea conjunctival mucin, e le ho ntlafatsa boemo bo fokotsehileng ba mucin mahlong le ho eketsa phello ea ho koloba ea cornea.
Ka putty phofo, thickening, ho boloka metsi le kaho ea mesebetsi e meraro. Thickening, selulose ka thickened ho fanyeha, e le hore tharollo lula junifomo hodimo le tlase karolo ea anti-phallo leketlileng. Ho boloka metsi: etsa hore phofo ea putty e ome butle, e thusa grey calcium ts'ebetsong ea karabelo ea metsi. Kaho: lubrication ea cellulose, e ka etsa hore putty phofo e be le kaho e ntle. HPMC ha e kenye letsoho tšebetsong efe kapa efe ea lik'hemik'hale, empa e bapala karolo ea tšehetso feela.
Pente ea motsoako e fetoha habonolo ha ho khethoa 'mala,' me e ka finyella phello e ntle ea moralo oa bonono, 'me pente ea sebele ea majoe ha e lelekisa bophelo ba tlhaho, e molemo ho feta pente ea mebala, 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 khanyang) ho fafatsa ho sireletsa phello ea bona ea bonono kapa phello ea majoe.
Lacquer, pente ea masela ke mofuta oa pente, e sebelisoang haholo bakeng sa mokhabiso oa marako. Webosaete ea semmuso ea seretse sa diatom e akaretsa liphapang tse ling lipakeng tsa pente ea moetso le lacquer, pente ea moetso le mokhoa oa ho khetholla lacquer, tse latelang tse ikhethileng ho bona phapang lipakeng tsa lacquer le pente ea masela.
Boleng bo phahameng latex theko e phahameng, bahlahisi e le hore ho boloka litšenyehelo, feela eketsa palo e nyenyane ea karolo ea emulsion, ka mor'a ho etsa lejoe pente e ommeng filimi e hlephileng, ha hoa lekana, filimi ea pente e na le tekanyo e kholoanyane, matla a compressive a fokotsehile, hang ha a kopana le meteo ea lipula ka nako e telele, pula e tla phunyeletsa ka filimi ea pente, e hlile e le pente e tšoeu ea majoe.
Baetsi ba bang ha ho etsoa lacquer, hangata ba eketsa carboxymethyl cellulose e ngata, hydroxyethyl selulose e le thickener, lintho tsena ke metsi-qhibilihang kapa hydrophilic, barbotage filimi setseng lera, haholo fokotsa ho hanyetsa metsi a barbotage.
Nako ea poso: Phup-09-2022