Phapang lipakeng tsa polyester ea TPU le polyether, le kamano lipakeng tsaTPU ea polycaprolactone
Taba ea pele, phapang lipakeng tsa polyester ea TPU le polyether
Thermoplastic polyurethane (TPU) ke mofuta oa lisebelisoa tse phahameng tsa elastomer, tse sebelisoang haholo mafapheng a fapaneng. Ho latela sebopeho se fapaneng sa karolo ea eona e bonolo, TPU e ka aroloa ka mofuta oa polyester le mofuta oa polyether. Ho na le phapang e kholo ts'ebetsong le ts'ebetsong lipakeng tsa mefuta e 'meli.
Polyester TPU e na le matla a phahameng le ho hanyetsa ho roala, thepa e tsitsitseng, thepa ea ho kobeha le ho hanyetsa solvent li ntle haholo. Ho phaella moo, e na le khanyetso e ntle ea mocheso o phahameng 'me e loketse ho sebelisoa libakeng tse phahameng tsa mocheso. Leha ho le joalo, khanyetso ea hydrolysis ea polyester TPU e batla e fokola, 'me ho bonolo ho hlaseloa ke limolek'hule tsa metsi le ho robeha.
Ka papiso,polyether TPUe tsebahala ka matla a eona a phahameng, ho hanyetsa hydrolysis le ho tiea ho hoholo. Ts'ebetso ea eona ea mocheso o tlase e boetse e ntle haholo, e loketse ho sebelisoa libakeng tse batang. Leha ho le joalo, matla a lekhapetla le matla a ho robeha a polyether TPU a batla a fokola, 'me ho tsieleha, ho khathala le ho taboha ha polyether TPU le hona ho ka tlase ho ea polyester TPU.
Ea bobeli, polycaprolactone TPU
Polycaprolactone (PCL) ke thepa e khethehileng ea polymer, ha TPU e khutšoanyane bakeng sa thermoplastic polyurethane. Leha ka bobeli e le lisebelisoa tsa polymer, polycaprolactone ka boeona ha se TPU. Leha ho le joalo, ts'ebetsong ea tlhahiso ea TPU, polycaprolactone e ka sebelisoa e le karolo ea bohlokoa ea karolo e bonolo ho itšoara ka isocyanate ho hlahisa li-elastomer tsa TPU tse nang le thepa e babatsehang.
Ea boraro, kamano pakeng tsa polycaprolactone leTPU masterbatch
Masterbatch e bapala karolo ea bohlokoa tlhahisong ea TPU. Masterbatch ke prepolymer e phahameng ea concentration, hangata e entsoe ka likarolo tse sa tšoaneng tse kang polymer, plasticizer, stabilizer, joalo-joalo Ts'ebetsong ea tlhahiso ea TPU, masterbatch e ka itšoara ka ketane extender, crosslinking agent, joalo-joalo, ho hlahisa lihlahisoa tsa TPU tse nang le thepa e itseng.
Joalo ka lisebelisoa tse phahameng tsa polymer, polycaprolactone hangata e sebelisoa e le karolo ea bohlokoa ea TPU masterbatch. Ka prepolymerization ea polycaprolactone le likarolo tse ling, lihlahisoa tsa TPU tse nang le thepa e ntle ea mochini, ho hanyetsa hydrolysis le ho hanyetsa mocheso o tlase ho ka lokisoa. Lihlahisoa tsena li na le menyetla e mengata ea ts'ebeliso libakeng tsa liaparo tse sa bonahaleng, lisebelisoa tsa bongaka, lieta tsa lipapali joalo-joalo.
Ea bone, litšobotsi le tšebeliso ea polycaprolactone TPU
Polycaprolactone TPU e ela hloko melemo ea polyester le polyether TPU, 'me e na le thepa e felletseng e phethahetseng. Ha e na matla a phahameng a mechine le ho hanyetsa ho apara, empa hape e bontša ho hanyetsa ha hydrolysis e ntle le ho hanyetsa mocheso o tlaase. Sena se etsa hore TPU ea polycaprolactone e be le bophelo bo bolelele ba ts'ebeletso le botsitso libakeng tse rarahaneng le tse fetohang.
Lefapheng la liaparo tse sa bonahaleng, polycaprolactone TPU e fetohile thepa e ratoang ka lebaka la thepa ea eona e babatsehang e pharaletseng. E ka hanela khoholeho ea lintho tse ka ntle tse kang pula ea acid, lerōle, marotholi a linonyana, le ho netefatsa ts'ebetso le bophelo ba liaparo tsa koloi. Ho phaella moo, litabeng tsa lisebelisoa tsa bongaka, lisebelisoa tsa lipapali, joalo-joalo, polycaprolactone TPU e boetse e fumane tlhokomelo e atileng bakeng sa polokeho le botšepehi ba eona.
Ka bokhutšoanyane, ho na le liphapang tse kholo lipakeng tsa TPU polyester le polyether ts'ebetsong le ts'ebetsong, athe polycaprolactone, e le e 'ngoe ea likarolo tsa bohlokoa tsa TPU, e fa lihlahisoa tsa TPU thepa e babatsehang e pharaletseng. Ka kutloisiso e tebileng ea likamano le litšobotsi lipakeng tsa lisebelisoa tsena, re ka khetha le ho sebelisa lihlahisoa tse loketseng tsa TPU ho fihlela litlhoko tsa masimo a fapaneng.
Nako ea poso: Mar-31-2025