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 tiea ha 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