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TPU Nhanganyaya

Thermoplastic polyurethane (TPU) inonyungudika-inogadziriswa thermoplastic elastomer ine kusimba kwepamusoro uye kuchinjika.Iyo ine hunhu hweese epurasitiki nerabha uye nekudaro inoratidza zvivakwa zvakaita sekugara, kuchinjika pamwe nekusimba kwesimba.

TPU, chizvarwa chitsva che thermoplastic elastomer zvinhu.Chimiro chayo chinosanganisira chikamu chakaoma uye chakapfava chikamu, chakagadzirwa ne polyols, isocyanate uye cheni extender ne condensation reaction.
Zvimiro zveTPU zvinosanganisira zvakatipoteredza-hushamwari, kugadzirisa nyore, kuita kwakasiyana-siyana, kudzokorodza nezvimwe. kesi, overmolding, shangu, firimu, adhesive, bhandi & conveyor, waya & tambo etc.

Maererano nemhando ye polyols, TPU inogona kukamurwa kuita polyester giredhi, polyether giredhi, polycaprolactone giredhi uye polycarbonate giredhi etc.Mhando dzakasiyana dzeTPU dzine midziyo yakasiyana, inogona kushandiswa mukushandisa kwakasiyana.Hukukutu hwemhando yeTPU hwakafara, hunofukidza 50A-85D.

  • Yakapfava Segment (polyether kana polyester): Yakavakwa kunze kwepolol uye isocyanate inopa kushanduka uye elastomeric hunhu hweTPU.
  • Yakaoma Segment (inonhuhwirira kana aliphatic): Inovakwa kubva kune cheni extender uye isocyanate ichipa TPU kuoma kwayo uye kuita kwemuviri zvivakwa.
    1. Inonhuhwirira TPUs - inobva pane isocyanates yakadai seMDI
    2. Aliphatic TPUs - inobva pane isocyanates seHMDI, HDI uye IPDI

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Thermoplastic polyurethanes iri elastic uye inonyungudika-inogadziriswa.Zvinowedzerwa zvinogona kuvandudza kugadzikana kwedimensional uye kupisa kupisa, kuderedza kukweshera, uye kuwedzera murazvo wemoto, fungus kuramba, uye mamiriro ekunze.

Anonhuhwirira TPUs akasimba, akajairika-chinangwa resin anoramba kurwiswa nehutachiona, anosimuka zvakanaka kumakemikari.An aesthetic drawback, zvisinei, maitiro ekunhuhwirira anokanganisa nemahara radical nzira dzinokonzerwa nekusangana nekupisa kana ultraviolet chiedza.Kushatisa uku kunotungamira mukushanduka kwechigadzirwa uye kurasikirwa kwehunhu hwemuviri.

Zvekuwedzera zvakaita semaoxidants, maUV absorbers, anodzivirira amine stabilizer anoshandiswa kuchengetedza polyurethanes kubva kuUV chiedza-induced oxidation uye nekudaro inoita thermoplastic polyurethanes akakodzera kwakasiyana maapplication ayo angangoda kudziya uye / kana kugadzikana kwechiedza.

Aliphatic TPU, kune rumwe rutivi, yakagadzikana yakagadzikana uye inoramba kushanduka kubva kuUV kuratidzwa.Iwo zvakare akajeka optically, izvo zvinovaita akakodzera laminates yekuputira girazi uye kuchengetedza glazing.
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Nguva yekutumira: Jul-14-2022