Bakeng sa ho fokotsa litšenyehelo tsa sehlahisoa le ho fumana ts'ebetso e eketsehileng,polyurethane thermoplasticLi-elastomers li ka sebelisoa e le lisebelisoa tse thata tse sebelisoang hangata ho tiisa lisebelisoa tse fapaneng tsa thermoplastic le rabara e fetotsoeng.
Ka lebaka lapolyurethanee le polar e phahameng haholo, e ka lumellana le li-resin tsa polar kapa li-rubber, tse kang ha li sebelisoa hammoho le chlorinated polyethylene (CPE) ho hlahisa lihlahisoa tsa bongaka;Ho kopanya le ABS ho ka nka sebaka sa tšebeliso ea polasetiki ea thermoplastic ea boenjiniere;Ha e sebelisoa hammoho le polycarbonate (PC), e na le thepa e kang ho hanyetsa oli, ho hanyetsa mafura, le ho hanyetsa tšusumetso, 'me e ka sebelisoa ho etsa litopo tsa koloi;Ho kopanya le polyester ho ka ntlafatsa ts'ebetso ea eona e thata;Ho phaella moo, e ka lumellana hantle le polyvinyl chloride, polyoxymethylene (POM), kapa polyvinylidene chloride;Polyester polyurethane e ka lumellana hantle le rabara ea nitrile ea 15% kapa 40% ea rabara ea nitrile / polyvinyl chloride motsoako oa rabara;Polyether polyurethane e ka boela ea lumellana hantle le 40% ea nitrile rabara / polyvinyl chloride motsoako oa sekhomaretsi;E ka boela ea lumellana le li-copolymers tsa acrylonitrile styrene (SAN);E ka theha sebopeho sa marang-rang se kenellang (IPN) se nang le li-polysiloxane tse sebetsang.Bongata bo boholo ba likhomaretsi tse kopantsoeng tse boletsoeng ka holimo li se li hlahisitsoe ka molao.
Lilemong tsa morao tjena, ho bile le palo e ntseng e eketseha ea lipatlisiso mabapi le ho toughening ea POM kaTPUnaheng ea China.Ho kopanngoa ha TPU le POM ha ho ntlafatse feela ho hanyetsa mocheso o phahameng le thepa ea mochine ea TPU, empa hape e thatafatsa POM haholo.Bafuputsi ba bang ba bontšitse hore litekong tse thata tsa ho robeha, ha li bapisoa le matrix a POM, li-alloys tsa POM tse kenyelletsoeng TPU li fetoha ho tloha ho robeha ha brittle ho ea ho fracture ea ductile.Keketso ea TPU e boetse e fana ka POM ka ts'ebetso ea memori ea sebopeho.Sebaka sa crystalline sa POM se sebetsa e le karolo e tsitsitseng ea alloy memory alloy, ha sebaka sa amorphous sa TPU le POM se sebetsa e le mohato o khutlisetsoang morao.Ha mocheso oa karabo ea ho hlaphoheloa o le 165 ℃ 'me nako ea ho hlaphoheloa ke 120 s, sekhahla sa ho hlaphoheloa ha motsoako se fihla ho feta 95%,' me phello ea ho hlaphoheloa ke eona e molemo ka ho fetisisa.
TPU e thata ho lumellana le lisebelisoa tse se nang polar tse kang polyethylene, polypropylene, rabara ea ethylene propylene, rabara ea butadiene, rabara ea isoprene, kapa phofo ea rabara e senyang, 'me ha e khone ho hlahisa lisebelisoa tse nang le likarolo tse sebetsang hantle.Ka hona, mekhoa ea kalafo e holim'a metsi e kang plasma, corona discharge, chemistry e metsi, primer, malakabe, kapa likhase tse sebetsang hangata li sebelisoa bakeng sa ho qetela.Ka mohlala, lihlahisoa tsa moea tsa Amerika le lik'hamphani tsa lik'hemik'hale li ka ntlafatsa haholo modulus ea ho kobeha, matla a thata, le ho roala khanyetso ea phofo e ntle ea polyethylene ea boima ba molek'hule e nang le boima ba limolek'hule tse limilione tse 3-5 ka mor'a phekolo ea F2 / O2 e sebetsang ka holim'a metsi, le ho e eketsa ho polyurethane elastomers ka karolelano ea 10%.Ho feta moo, phekolo ea khase e sebetsang ea F2 / O2 e ka sebelisoa ho likhoele tse khuts'oane tse lebisitsoeng ka bolelele ba 6-35mm tse boletsoeng ka holimo, tse ka ntlafatsang ho satalla le ho tabola ho thata ha thepa e kopaneng.
Nako ea poso: Jan-19-2024