Seretse sa phofo e omileng se bolela thepa e nang le granular kapa phofo e entsoeng ka ho kopanya lintho tse kopaneng, thepa e sa pheleng ea samente, le lintho tse ling tse omisitsoeng le ho hlahlojoa ka tekanyo e itseng. Lintho tse ling tse sebelisoang hangata bakeng sa seretse sa phofo e omileng ke life? Seretse sa phofo e omileng hangata se sebelisa samente ea Portland e le thepa e kopanyang samente, 'me bongata ba thepa e kopanyang samente hangata bo etsa 20% ho isa ho 40% ea seretse sa phofo e omileng; Li-aggregate tse ngata tse ntle ke lehlabathe la quartz 'me li hloka tekanyo e kholo ea kalafo pele ho nako joalo ka ho omisa le ho hlahloba ho netefatsa hore boholo ba likaroloana tsa tsona le boleng li fihlela litlhoko tsa foromo; Ka linako tse ling molora o fofang, phofo ea slag, jj. le tsona li eketsoa e le metsoako; Metswako hangata e sebelisoa ka bongata bo bonyenyane, ho tloha ho 1% ho isa ho 3%, empa e na le phello e kholo. Hangata li khethoa ho latela litlhoko tsa foromo ea sehlahisoa ho ntlafatsa bokhoni ba ho sebetsa, ho beoa, matla, ho fokotseha le ho hanyetsa serame ha seretse.
Mefuta e atisang ho sebelisoa ea li-additives tsa seretse sa phofo e omileng ke efe?
Phofo ea latex e ka qhaloang hape
Phofo ea latex e qhalakanngoang hape e ka ntlafatsa litšobotsi tse latelang ka har'a seretse sa phofo e omileng:
① Ho boloka metsi le ho sebetsa ha seretse se sa tsoa tsoakoa;
② Tshebetso ya ho kopanya ya dikarolo tse fapaneng tsa motheo;
③ Ho tenyetseha le tshebetso ya ho fetoha ha seretse;
④ Matla le momahano e kobehileng;
⑤ Ho hanyetsa ho roala;
⑥ Ho mamella;
⑦ Bophara (ho se hlolehe ho etsahala).
Tšebeliso eaphofo ea latex e qhalakanngoang hapeka seretse sa ho plaster ka lera le lesesaane, setlama sa lithaele tsa letsopa, sistimi ea ho thibela lebota ka ntle, le thepa ea ho itlhomamisa fatše e bontšitse litholoana tse ntle.
Moemeli oa ho boloka metsi le ho a tiisa
Lintho tse thibelang metsi haholo-holo li kenyelletsali-ether tsa selulose, di-starch ether, jj. Ether ya cellulose e sebediswang ka hara seretse sa phofo e ommeng haholo-holo ke methyl hydroxyethyl cellulose ether (MHEC) le ether ea hydroxypropyl methyl cellulose (HPMC).
Moemeli oa ho fokotsa metsi
Mosebetsi oa mantlha oa metsoako e fokotsang metsi ke ho fokotsa tlhoko ea metsi ea seretse, ka hona ho ntlafatsa matla a sona a ho hatella. Metsoako e meholo ea metsoako e fokotsang metsi e sebelisoang seretseng se omileng e kenyelletsa casein, moemeli oa metsoako e fokotsang metsi o thehiloeng ho naphthalene, melamine formaldehyde condensate, le polycarboxylic acid. Casein ke superplasticizer e ntle haholo, haholo-holo bakeng sa seretse se nang le lera le lesesaane, empa ka lebaka la tlhaho ea sona, boleng ba eona le theko ea eona hangata lia fetoha. Metsoako ea metsoako e fokotsang metsi ea letoto la Naphthalene e sebelisoang hangata ke β- Naphthalenesulfonic acid formaldehyde condensate.
Sekoahelo
Ho na le mefuta e 'meli ea li-coagulant: accelerator le retarder. Li-agent tse potlakisang li sebelisoa ho potlakisa ho beha le ho tiisa ha seretse, 'me calcium formate le lithium carbonate li sebelisoa haholo. Aluminate le sodium silicate le tsona li ka sebelisoa e le li-agent tse potlakisang. Retarder e sebelisoa ho liehisa ho beha le ho tiisa ha seretse, 'me tartaric acid, citric acid le letsoai la eona, hammoho le gluconate li sebelisitsoe ka katleho.
Moemeli ea sa keneleng metsi
Lintho tse thibelang metsi li kenyelletsa haholo-holo metsoako ea polymer e kang chloride ea tšepe, metsoako ea silane ea organic, letsoai la fatty acid, likhoele tsa polypropylene, le rabara ea styrene butadiene. Sehlahisoa sa ho thibela metsi sa chloride ea tšepe se na le phello e ntle ea ho thibela metsi, empa se kotsing ea ho bola ha mekoallo ea tšepe le likarolo tse kenelletseng tsa tšepe. Matsoai a calcium a sa qhibiliheng a hlahisoang ke karabelo ea letsoai la fatty acid le li-ion tsa calcium karolong ea samente e behang maboteng a methapo ea mali, a bapala karolo ea ho thibela masoba le ho etsa hore mabota ana a capillary tube a fetohe libaka tse sa rateng metsi, ka hona a bapala karolo ea ho se kene metsi. Litšenyehelo tsa yuniti ea lihlahisoa tsena li tlase haholo, empa ho nka nako e telele ho kopanya seretse ka ho lekana le metsi.
faeba
Likhoele tse sebelisoang bakeng sa seretse se omileng li kenyelletsa fiber ea khalase e hanyetsanang le alkali, fiber ea polyethylene (fiber ea polypropylene), fiber ea polyvinyl alcohol e matla le e nang le modulus e phahameng (fiber ea polyvinyl alcohol),faeba ea lehong, jj. Tse sebelisoang haholo ke likhoele tsa polyvinyl alcohol tse matla le tse phahameng tsa modulus le likhoele tsa polypropylene. Likhoele tsa polyvinyl alcohol tse matla le tse phahameng tsa modulus li na le ts'ebetso e betere le theko e tlase ho feta likhoele tsa polypropylene tse tsoang kantle ho naha. Likhoele li ajoa ka mokhoa o sa tloaelehang le ka ho lekana ka har'a matrix ea samente, 'me li hokahana haufi-ufi le samente ho thibela ho thehoa le nts'etsopele ea mapetso a manyenyane, e leng se etsang hore matrix ea seretse e be teteaneng, kahoo e na le ts'ebetso e sa keneleng metsi le khanyetso e ntle ea tšusumetso le ho petsoha. Bolelele ke 3-19 mm.
Sefoamer
Hona jwale, di-defoamer tsa phofo tse sebediswang ka hara seretse sa phofo e ommeng haholoholo ke di-polyol le di-polysiloxanes. Tshebediso ya di-defoamer e ke ke ya fetola feela dikahare tsa di-bubble, empa hape e ka fokotsa ho fokotseha. Ditshebedisong tse sebetsang, e le ho ntlafatsa tshebetso e felletseng, di-additives tse ngata di hloka ho sebediswa ka nako e le nngwe. Ntlheng ena, ho hlokahala ho ela hloko tshusumetso e tshwanang pakeng tsa di-additives tse fapaneng. Ho feta moo, ho boetse ho hlokahala ho ela hloko bongata ba di-additives tse ekeditsweng. Di fokola haholo ho bontsha phello ya di-additives; Ha di le ngata haholo, ho ka ba le ditlamorao.
Nako ea poso: Phato-29-2023