Putty phofo e entsoe haholo ka lintho tse etsang filimi (lisebelisoa tsa bonding), li-filler, li-agent tse bolokang metsi, li-thickeners, defoamers, joalo-joalo. Lisebelisoa tse tloaelehileng tsa lik'hemik'hale tse entsoeng ka phofo ea putty haholo-holo li kenyelletsa: cellulose, starch pregelatinized, starch ether, polyvinyl alcohol, dispersible latex powder, joalo-joalo Ts'ebetso le ts'ebeliso ea lisebelisoa tse fapaneng tsa lik'hemik'hale tse tala li hlahlojoa ka bonngoe ka tlase.
1: Tlhaloso le phapang ea fiber, cellulose le cellulose ether
Fiber (US: Fiber; English: Fiber) e bolela ntho e entsoeng ka likhoele tse sa khaotseng kapa tse sa khaotseng.Joalo ka fiber ea semela, moriri oa liphoofolo, fiber ea silika, fiber ea maiketsetso, jj.
Cellulose ke macromolecular polysaccharide e entsoeng ka tsoekere 'me ke karolo ea mantlha ea sebopeho sa marako a lisele tsa semela.Mochesong oa kamore, selulose ha e qhibilihe ka metsing kapa ka har'a lihlapolli tse tloaelehileng.Likahare tsa cellulose tsa k'hothone li haufi le 100%, e leng se etsang hore e be mohloli o hloekileng oa tlhaho oa cellulose.Ka kakaretso lehong, selulose e etsa 40-50%, 'me ho na le 10-30% ea hemicellulose le 20-30% ea lignin.Phapang pakeng tsa cellulose (ka ho le letona) le starch (ka ho le letšehali):
Ka kakaretso, starch le cellulose ke macromolecular polysaccharides, 'me foromo ea molek'hule e ka hlalosoa e le (C6H10O5) n.Boima ba limolek'hule ba selulose bo boholo ho feta ba starch, 'me cellulose e ka bola ho hlahisa starch.Cellulose ke D-glucose le β-1,4 glycoside Macromolecular polysaccharides e entsoeng ka litlamo, ha starch e thehoa ke α-1,4 glycosidic bonds.Cellulose ka kakaretso ha e na makala, empa starch e na le makala a 1,6 a glycosidic.Cellulose ha e qhibilihe hantle ka metsing, athe starch eona e qhibiliha metsing a chesang.Cellulose ha e utloe ho amylase 'me ha e fetohe putsoa ha e pepesehetse iodine.
Lebitso la Senyesemane la cellulose ether ke cellulose ether, e leng motsoako oa polymer o nang le sebopeho sa ether se entsoeng ka selulose.Ke sehlahisoa sa karabelo ea lik'hemik'hale ea cellulose (semela) e nang le etherification agent.Ho ea ka sebopeho sa lik'hemik'hale tsa motsoako ka mor'a etherification, e ka aroloa ka anionic, cationic le nonionic ethers.Ho itšetlehile ka etherification agent e sebelisitsoeng, ho na le methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose cellulose, cyanoethyl cellulose, benzyl cyanoethyl inmethyl cellulose, benzyl cyanoethyl inmethyl cellulose, joalo-joalo. indasteri ea kaho, cellulose ether e boetse e bitsoa cellulose, e leng lebitso le sa tloaelehang, 'me e bitsoa cellulose (kapa ether) ka nepo.Thickening mechanism of cellulose ether thickenerPolymer chain ea cellulose ether e bonolo ho theha bond ea hydrogen le metsi ka metsing, 'me bond ea haedrojene e etsa hore e be le hydration e phahameng le ho kenella ha limolek'hule.
Ha cellulose ether thickener e kenngoa penteng ea latex, e nka metsi a mangata, e etsa hore molumo oa eona o atolohe haholo, o fokotsa sebaka sa mahala sa li-pigments, li-fillers le likaroloana tsa latex;ka nako e ts'oanang, liketane tsa limolek'hule tsa cellulose ether li kopantsoe ho etsa sebopeho sa marang-rang a mararo, 'me li-Fillers tsa mebala le likaroloana tsa latex li koaletsoe bohareng ba letlooeng' me li ke ke tsa phalla ka bolokolohi.Tlas'a liphello tsena tse peli, viscosity ea tsamaiso ea ntlafatsoa!E fihletse phello e teteaneng eo re e hlokang!
Selulose e tloaelehileng (ether): Ka kakaretso, cellulose 'marakeng e bua ka hydroxypropyl, hydroxyethyl e sebelisoa haholo bakeng sa pente, pente ea latex,' me hydroxypropyl methylcellulose e sebelisoa bakeng sa seretse, putty le lihlahisoa tse ling.Carboxymethyl cellulose e sebelisoa bakeng sa phofo e tloaelehileng ea putty bakeng sa marako a ka hare.Carboxymethyl cellulose, eo hape e tsejoang e le sodium carboxymethyl cellulose, eo ho thoeng ke (CMC): Carboxymethyl cellulose (CMC) ke phofshoana e tšoeu e se nang chefo, e se nang monko e nang le ts'ebetso e tsitsitseng 'me e qhibiliha habonolo metsing.Mokelikeli o bonaletsang oa alkaline kapa oa alkaline, o qhibilihang ka har'a likhomaretsi tse ling tse qhibilihang metsing le lirekeni, tse sa qhibiliheng linthong tse hlapollang tse kang ethanol.CMC e ka sebelisoa e le binder, thickener, suspending agent, emulsifier, dispersant, stabilizer, sizing agent, joalo-joalo Carboxymethyl cellulose (CMC) ke sehlahisoa se nang le tlhahiso e kholo ka ho fetisisa, mefuta e mengata ka ho fetisisa ea tšebeliso, le tšebeliso e bonolo ka ho fetisisa har'a cellulose ethers. , eo ka tloaelo e tsejoang e le “industrial monosodium glutamate”.Carboxymethyl cellulose e na le mesebetsi ea ho tlama, ho tiisa, ho matlafatsa, ho etsa emulsifying, ho boloka metsi le ho emisa.1. Kopo ea sodium carboxymethyl cellulose indastering ea lijo: sodium carboxymethyl cellulose hase feela emulsification e ntle ea stabilizer le thickener ha ho sebelisoa lijo, empa e boetse e na le serame se babatsehang le botsitso ba ho qhibiliha, 'me e ka ntlafatsa Tatso ea sehlahisoa e lelefatsa nako ea polokelo.2. Tšebeliso ea sodium carboxymethyl cellulose indastering ea meriana: e ka sebelisoa e le emulsion stabilizer bakeng sa liente, binder le moemeli oa ho etsa filimi bakeng sa matlapa a indasteri ea meriana.3. CMC e ka sebelisoa e le moemeli ea khahlanong le ho rarolla, emulsifier, dispersant, agent, le sekhomaretsi bakeng sa liphahlo.E ka etsa hore litaba tse tiileng tsa ho roala li arotsoe ka mokhoa o ts'oanang ho solvent, e le hore seaparo se se ke sa senya nako e telele.E boetse e sebelisoa haholo ka pente.4. Sodium carboxymethyl cellulose e ka sebelisoa e le flocculant, chelating agent, emulsifier, thickener, waterretaining agent, sizing agent, filimi-forming material, joalo-joalo E boetse e sebelisoa haholo ho lisebelisoa tsa elektronike, chefo e bolaeang likokoanyana, letlalo, polasetiki, khatiso, ceramics, Indasteri ea lik'hemik'hale e sebelisoang letsatsi le letsatsi le mafapha a mang, 'me ka lebaka la ts'ebetso ea eona e ntle haholo le mefuta e mengata ea ts'ebeliso, e lula e nts'etsapele masimo a macha a ts'ebeliso, mme tebello ea mmaraka e pharaletse haholo.Mehlala ea kopo: bokantle ba lebota putty phofo foromo ka hare leboteng putty phofo foromo 1 Shuangfei phofo: 600-650kg 1 Shuangfei phofo: 1000kg 2 White samente: 400-350kg 2 Pregelatinized starch: 5-6kg 3 Pregelatinized starch: 5 -6kg 103 CMC: -15kg kapa HPMC2.5-3kg4 CMC: 10-15kg kapa HPMC2.5-3kg Putty powder e kentse carboxymethyl cellulose CMC, ts'ebetso ea starch ea pregelatinized: ① E na le bokhoni bo botle ba ho Tickening kapele;ts'ebetso ea bonding, le ho boloka metsi ho itseng;② Ntlafatsa bokhoni bo khahlanong le ho thella (sagging) ea thepa, ho ntlafatsa ts'ebetso ea lisebelisoa, le ho etsa hore ts'ebetso e be bonolo;lelefatsa nako ya ho buloa hoa taba.③ Ka mor'a ho omisa, bokaholimo bo boreleli, ha bo theohe phofo, bo na le thepa e ntle ea ho etsa filimi 'me ha ho na likhopo.④ Habohlokoa le ho feta, litekanyetso li nyane, 'me tekanyo e tlase haholo e ka ba le phello e phahameng;ka nako e ts'oanang, litšenyehelo tsa tlhahiso li fokotsehile ka hoo e ka bang 10-20%.Ka indasteri ea kaho, CMC e sebelisoa tlhahisong ea li-preforms tsa konkreite, tse ka fokotsang tahlehelo ea metsi le ho sebetsa joalo ka tšitiso.Esita le bakeng sa kaho e kholo, e ka boela ea ntlafatsa matla a konkreite le ho thusa li-preforms ho oela ho tloha lera.Sepheo se seng se seholo ke ho senya lerako le lesoeu le phofo ea putty, putty peista, e ka bolokang lisebelisoa tse ngata tsa mohaho le ho ntlafatsa lera le sireletsang le ho khanya ha lerako.Hydroxyethyl methylcellulose, e bitsoang (HEC): foromo ea lik'hemik'hale:
1. Kenyelletso ea hydroxyethyl cellulose: Hydroxyethyl cellulose (HEC) ke ether ea cellulose e seng ea ionic e entsoeng ka selulose ea tlhaho ea polymer ka letoto la mekhoa ea lik'hemik'hale.Ke phofo e tšoeu e sa nkheng, e sa latsoeheng, e se nang chefo kapa granule, e ka qhibilihang metsing a batang ho etsa tharollo e hlakileng ea viscous, 'me ho qhibiliha ha ho amehe ke boleng ba pH.E na le ho tenya, ho tlama, ho qhalakanya, emulsifying, ho etsa filimi, ho emisa, ho bapatsa, ho sebetsa ka holim'a metsi, ho boloka mongobo le ho thibela letsoai.
2. Litsupa tsa tekheniki Tekanyetso ea Ponahalo Ponahalo ea phofo e tšoeu kapa e mosehla Molar substitution (MS) 1.8-2.8 Metsi a sa tsitsang (%) ≤ 0.5 Tahlehelo ha o omisa (WT%) ≤ 5.0 Masala ka ho khantša (WT%) ≤ 5.0 PH bohlokoa 6.0- 8. Viscosity (mPa.s) 2%, 30000, 60000, 100000 aqueous solution at 20°C Three, melemo ea hydroxyethyl cellulose High thickening effect
● Hydroxyethyl cellulose e fana ka thepa e babatsehang ea ho roala liaparo tsa latex, haholo-holo liaparo tse phahameng tsa PVA.Ha ho flocculation e etsahalang ha pente e le mohaho o teteaneng.
● Hydroxyethyl cellulose e na le phello e phahameng ea ho tiea.E ka fokotsa litekanyetso, ea ntlafatsa moruo oa foromo, 'me ea ntlafatsa khanyetso ea scrub ea ho roala.
Lintho tse ntle tsa rheological
● Tharollo ea metsi ea hydroxyethyl cellulose ke tsamaiso e seng ea Newtonian, 'me thepa ea tharollo ea eona e bitsoa thixotropy.
● Boemong bo tsitsitseng, ka mor'a hore sehlahisoa se qhibilihe ka ho feletseng, mokhoa oa ho roala o boloka boemo bo botle ka ho fetisisa ba ho tiisa le ho bula.
● Boemong ba ho tšela, tsamaiso e boloka viscosity e itekanetseng, e le hore sehlahisoa se be le metsi a mangata haholo 'me se se ke sa phatloha.
● Ha e sebelisoa ka borashe le rolara, sehlahisoa se ata habonolo holim'a substrate.E loketse kaho.Ka nako e ts'oanang, e na le khanyetso e ntle ea splash.
● Qetellong, ka mor'a hore seaparo se phethoe, viscosity ea tsamaiso e hlaphoheloa hang-hang, 'me ho roala hang-hang ho fokotseha.
Dispersibility le Solubility
● Hydroxyethyl cellulose e phekoloa ka ho lieha ho qhibiliha, e leng se ka thibelang ka katleho ho kopanya ha phofo e omileng e kenngoa.Ka mor'a ho netefatsa hore phofo ea HEC e hasane hantle, qala ho nosetsa.
● Hydroxyethyl cellulose e nang le phekolo e nepahetseng ea holim'a metsi e ka khona ho fetola sekhahla sa ho qhibiliha le sekhahla sa ho eketseha ha viscosity ea sehlahisoa.
botsitso ba polokelo
● Hydroxyethyl cellulose e na le thepa e ntle ea ho thibela hlobo 'me e fana ka nako e lekaneng ea ho boloka pente.E thibela ka katleho li-pigments le li-filler ho rarolla.4. Mokhoa oa ho sebelisa: (1) Eketsa ka ho toba nakong ea tlhahiso Mokhoa ona o bonolo ka ho fetisisa ebile o nka nako e khutšoanyane.Mehato ke e latelang: 1. Kenya metsi a hloekileng ka har'a bakete e kholo e nang le sehloekisi se phahameng sa ho kuta.2. Qala ho sisinyeha ka ho tsoelang pele ka lebelo le tlaase 'me butle-butle u sefa hydroxyethyl cellulose ka tharollo e lekanang.3. Tsoela pele ho sisinya ho fihlela likaroloana tsohle li kolobile.4. Ebe u eketsa moemeli oa antifungal le li-additives tse sa tšoaneng.Tse kang li-pigments, lithuso tsa ho qhala, metsi a ammonia, joalo-joalo 5. Hlohlelletsa ho fihlela cellulose eohle ea hydroxyethyl e qhibiliha ka ho feletseng (viscosity ea tharollo e eketseha haholo) pele o eketsa likarolo tse ling ka mokhoa oa ho itšoara.(2) Lokisetsa joala ba 'm'e bakeng sa ho sebelisoa: Mokhoa ona ke ho lokisa joala ba 'm'e ka tekanyo e phahameng pele, ebe oe eketsa sehlahisoa.Molemo oa mokhoa ona ke hore o na le phetoho e kholoanyane 'me e ka kenyelletsoa ka ho toba sehlahisoa se phethiloeng, empa se tlameha ho bolokoa hantle.Mehato e tšoana le mehato (1-4) ka mokhoa (1): phapang ke hore ha ho na moferefere o phahameng oa ho kuta o hlokahalang, ke li-agitator tse ling feela tse nang le matla a lekaneng ho boloka hydroxyethyl cellulose ka mokhoa o ts'oanang e qhalakantsoeng ka tharollo, tsoela pele ho hlohlelletsa ho fihlela e qhibiliha ka ho feletseng. ho kena ka tharollo ea viscous.Ho lokela ho hlokomeloa hore moemeli oa antifungal o tlameha ho eketsoa ho 'mè oa joala kapele kamoo ho ka khonehang.V. Kopo ea 1. E sebelisoa ka pente ea latex e thehiloeng metsing: HEC, e le colloid e sireletsang, e ka sebelisoa ka vinyl acetate emulsion polymerization ho ntlafatsa botsitso ba tsamaiso ea polymerization ka mefuta e mengata ea pH ea boleng.Ha ho etsoa lihlahisoa tse feliloeng, li-additives tse kang li-pigment le li-fillers li sebelisetsoa ho hasanya ka mokhoa o ts'oanang, ho tsitsisa le ho fana ka liphello tse teteaneng.E ka boela ea sebelisoa e le dispersant bakeng sa ho fanyeha polymers tse kang styrene, acrylate, le propylene.E sebelisoa ka pente ea latex e ka ntlafatsa haholo ts'ebetso ea ho tiea le ho phahamisa.2. Mabapi le ho cheka oli: HEC e sebelisoa e le motenya ka har'a seretse se sa tšoaneng se hlokahalang bakeng sa ho cheka, ho lokisa seliba, ts'ebetso ea samente le ea fracturing, e le hore seretse se ka fumana metsi a mangata le botsitso.Ntlafatsa matla a ho jara seretse nakong ea ho cheka, le ho thibela metsi a mangata ho kena lera la oli ho tloha seretseng, ho tsitsisa bokhoni ba tlhahiso ea lera la oli.3. E sebelisoa mohahong oa mohaho le thepa ea mohaho: Ka lebaka la matla a eona a matla a ho boloka metsi, HEC ke setsi se matla le se tlamang bakeng sa slurry ea samente le seretse.E ka kopanngoa le seretse ho ntlafatsa ts'ebetso ea metsi le ts'ebetso ea kaho, le ho lelefatsa nako ea mouoane oa metsi , Ntlafatsa matla a pele a konkreite le ho qoba mapetsong.E ka ntlafatsa haholo ho boloka metsi le matla a tlamahano ha e sebelisoa bakeng sa ho lila samente, samente e kopanyang le plaster putty.4. E sebelisoa ka sesepa sa meno: ka lebaka la ho hanyetsa ka matla letsoai le asiti, HEC e ka netefatsa botsitso ba sesepa sa meno.Ho phaella moo, sesepa sa meno ha se bonolo ho omella ka lebaka la ho boloka metsi a matla le bokhoni ba emulsifying.5. Ha e sebelisoa ka enke e thehiloeng metsing, HEC e ka etsa hore enke e ome kapele le hore e se ke ea kenella.Ho feta moo, HEC e boetse e sebelisoa haholo ho hatisa masela le ho daea, ho etsa pampiri, lik'hemik'hale tsa letsatsi le letsatsi joalo-joalo.6. Litlhokomelo tsa ho sebelisa HEC: a.Hygroscopicity: Mefuta eohle ea hydroxyethyl cellulose HEC ke hygroscopic.Ka kakaretso metsi a ka tlase ho 5% ha a tloha fekthering, empa ka lebaka la libaka tse fapaneng tsa lipalangoang le polokelo, metsi a tla ba holimo ho feta ha a tloha fekthering.Ha u e sebelisa, leka feela hore na metsi ke afe 'me u tlose boima ba metsi ha u bala.Se ke oa E pepesetsa sepakapakeng.b.Phofo ea lerōle e phatloha: haeba phofo eohle ea organic le phofshoana ea lerōle ea hydroxyethyl cellulose e le moeeng ka tekanyo e itseng, e tla boela e phatlohe ha e kopana le ntlha ea mollo.Ts'ebetso e nepahetseng e lokela ho etsoa ho qoba phofo ea lerole sepakapakeng ka hohle kamoo ho ka khonehang.7. Litlhaloso tsa ho paka: Sehlahisoa se entsoe ka mokotla o entsoeng ka pampiri-polasetiki o kentsoeng ka mokotla o ka hare oa polyethylene, o nang le boima ba 25 kg.Boloka sebakeng se nang le moea oa moea le o omileng ka tlung ha u boloka, 'me u ele hloko mongobo.Ela hloko tšireletso ea pula le letsatsi nakong ea lipalangoang.Hydroxypropyl methyl cellulose, e bitsoang (HPMC): hydroxypropyl methyl cellulose (HPMC) ke phofo e tšoeu e sa nkheng, e sa latsoeheng, e se nang chefo, ho na le mefuta e 'meli ea hang-hang le e sa potlakang, hang-hang, Ha e kopana le metsi a batang, e potlakile. e qhalakana ebe e nyamella ka metsing.Ka nako ena, mokelikeli ha o na viscosity.Ka mor'a metsotso e ka bang 2, viscosity ea mokelikeli e eketseha, e etsa "viscous colloid" e hlakileng.Mofuta oo e seng oa hang-hang: E ka sebelisoa feela lihlahisoa tsa phofo tse omeletseng tse kang putty powder le seretse sa samente.E ke ke ea sebelisoa ka sekhomaretsi sa metsi le pente, 'me ho tla ba le clumping.
Nako ea poso: Dec-26-2022