Styrene-butadiene (SB) latex ke mofuta o tloaelehileng oa emulsion polymer e sebelisoang mesebetsing e mengata ea indasteri le ea khoebo.Hobane e entsoe ka mefuta e 'meli e fapaneng ea li-monomers, styrene le butadiene, SB latex e khetholloa e le copolymer.Styrene e tsoa ho benzene le ethylene, 'me butadiene ke sehlahisoa sa tlhahiso ea ethylene.
Styrene-butadiene latex e fapane le li-monomers tsa eona ka bobeli le ho latex ea tlhaho, e entsoeng ka lero la lifate tsa Hevea brasiliensis (aka lifate tsa rabara).E boetse e fapane le motsoako o mong o entsoeng, rabara ea styrene-butadiene (SBR), e nang le lebitso le tšoanang empa e fana ka thepa e fapaneng ea thepa.
Ho etsoa ha Styrene-Butadiene Latex
Styrene-butadiene latex e etsoa ka mokhoa oa emulsion oa polymer.Sena se kenyelletsa ho kenyelletsa li-monomers metsing hammoho le li-surfactants, li-initiators, li-carboxylic acid le li-monomers tse khethehileng.Li-initiators li hlahisa polymerization ea chain-reaction e kopanyang styrene monomer ho butadiene monomer.Butadiene ka boeona ke kopano ea lihlopha tse peli tsa vinyl, kahoo e khona ho itšoara ka lihlopha tse ling tse 'nè tsa monomer.Ka lebaka leo, e ka eketsa kholo ea ketane ea polymer empa e khona ho hokahanya ketane e le 'ngoe ea polymer ho e' ngoe.Sena se bitsoa crosslinking, 'me ho bohlokoa haholo ho k'hemistri ea styrene-butadiene.Karolo e kopantsoeng ea polymer ha e qhibilihe ka har'a lihlapolli tse loketseng empa e ruruha ho etsa matrix a kang gel.Li-polymers tse ngata tsa khoebo tsa styrene-butadiene li kopantsoe haholo, kahoo li na le li-gel tse ngata, thepa ea bohlokoa e nang le tšusumetso e matla mosebetsing oa latex, e leng ho lumellang ho thatafala, matla le elasticity ho feta lisebelisoa tse ling.Ka mor'a moo, re tla hlahloba hore na thepa ena e ka sebelisoa hamolemo joang liindastering tse ngata le lits'ebetsong.
Lisebelisoa tsa Khoebo
Styrene-butadiene latex e fana ka melemo e mengata, ho kenyeletsoa kamohelo ea ho tlatsa le ho leka-lekana ha tensile/elongation.Ho tenyetseha ha copolymer ena ho lumella hore ho be le palo e batlang e sa lekanyetsoa ea metsoako e bakang ho hanyetsa metsi a mangata le ho khomarela li-substrates tse thata.Litšobotsi tsena tsa SB latex li etsa hore mokhoa ona oa maiketsetso e be oa bohlokoa ho sehlopha se ntseng se hola sa mebaraka.Lisebelisoa tsa latex tsa SB li atisa ho sebelisoa e le ho roala lihlahisoa tsa pampiri, tse kang limakasine, liflaya le li-catalogs, ho finyella khanya e phahameng, khatiso e ntle, le ho hanyetsa oli le metsi.SB latex e matlafatsa matla a tlamang a pigment, 'me hape, e etsa hore pampiri e be boreleli, e thatafale, e be khanyang le ho thibela metsi ho feta.Joalo ka bonase e ekelitsoeng, latex ea SB e theko e tlase haholo ho feta liphahlo tse ling.SB latex ke khetho e tsebahalang bakeng sa likhomaretsi liindastering tse ling joalo ka fatše.Mohlala, polymer e fumanoa e le seaparo se ka morao sa masela joalo ka limmete tse nang le tufted.Ho roala ka morao ho fana ka ho hanyetsa metsi 'me ho tšoara li-tufts sebakeng seo, e leng ho ntlafatsa botsitso le ho fokotsa ho senyeha ha moeli.Tsena ke tse ling tsa ts'ebeliso ea styrene-butadiene latex.Ha e le hantle, e fana ka menyetla e ke keng ea lekanngoa, joalokaha ho pakoa ke tšebeliso ea eona bakeng sa lipina tse mathang, liaparo tsa masela, likhomaretsi tse nang le khatello ea maikutlo le masela a sa lohoeng.Li-emulsion tsa polymer tsa styrene butadiene le tsona ke karolo ea bohlokoa ho li-membrane tse sebelisoang ka metsi, le liphahlo tse tlase tsa MVTR bakeng sa ho paka lijo.
Nako ea poso: Aug-10-2022