TPU Isingeniso

I-Thermoplastic polyurethane (TPU) iyi-elastomer ye-thermoplastic ekwazi ukuncibilika ehlala isikhathi eside futhi evumelana nezimo. Inezici zakho kokubili ipulasitiki nerabha futhi ngaleyo ndlela ibonise izakhiwo ezinjengokuqina, ukuguquguquka kanye namandla amahle kakhulu okudonsa.

I-TPU, isizukulwane esisha se-thermoplastic elastomer material. Isakhiwo sayo sihlanganisa ingxenye eqinile kanye nengxenye ethambile, eyenziwe ngama-polyols, i-isocyanate kanye ne-chain extender ngokusabela kwe-condensation.
Izici ze-TPU zifaka ubungane bemvelo, ukucutshungulwa okulula, ukusebenza okuhlukahlukene, ukugaywa kabusha njll.; I-TPU inendawo enhle kakhulu ebonakalayo, ukumelana nokuhushulwa, imibala elula, ukunwebeka okuphezulu, ukumelana nesimo sezulu, ukumelana nowoyela kanye nokuguquguquka okuphansi kwezinga lokushisa njll., esetshenziswa kabanzi ocingweni. ikesi, i-overmolding, izicathulo, ifilimu, i-adhesive, ibhande ne-conveyor, intambo nekhebula njll.

Ngokusho kohlobo lwe-polyols, i-TPU ingahlukaniswa ngebanga le-polyester, ibanga le-polyether, ibanga le-polycaprolactone kanye nebanga le-polycarbonate njll. Izinhlobo ezahlukene ze-TPU zinempahla ehlukene, zingasetshenziswa kuhlelo lokusebenza oluhlukile. Ububanzi bobulukhuni be-TPU bubanzi, buhlanganisa i-50A-85D.

• Ingxenye Ethambile (i-polyether noma i-polyester): Yakhiwe nge-polyol kanye ne-isocyanate ehlinzeka ngokuguquguquka nohlamvu lwe-elastomeric lwe-TPU.
• Ingxenye Eqinile (iphunga elimnandi noma i-aliphatic): Yakhiwe nge-chain extender kanye ne-isocyanate enikeza i-TPU ukuqina kwayo nokusebenza komzimba.
  1. Ama-TPU Anukayo - asekelwe kuma-isocyanate afana ne-MDI
  2. Ama-TPU e-Aliphatic - asekelwe kuma-isocyanate afana ne-HMDI, HDI ne-IPDI

I-Thermoplastic polyurethanes iyanwebeka futhi iyancibilika. Izithasiselo zingathuthukisa ukuzinza kwe-dimensional kanye nokumelana nokushisa, zinciphise ukungqubuzana, futhi zandise ukuncipha komlilo, ukumelana nesikhunta, kanye nesimo sezulu.

Ama-TPU anephunga elimnandi angama-resin aqinile, anenhloso ejwayelekile amelana nokuhlaselwa amagciwane, amelana kahle namakhemikhali. I-aesthetic drawback, nokho, ukuthambekela kwe-aromatics kwehlisa imizila yama-radical yamahhala ebangelwa ukuchayeka ekushiseni noma ekukhanyeni kwe-ultraviolet. Lokhu konakala kuholela ekushintsheni kombala komkhiqizo kanye nokulahlekelwa izakhiwo ezibonakalayo.

Izithasiselo ezifana nama-antioxidant, izithasiselo ze-UV, iziqinisi ze-amine ezivinjiwe zisetshenziselwa ukuvikela i-polyurethanes ku-oxidation eyenziwe ngokukhanya kwe-UV futhi ngenxa yalokho yenze ama-thermoplastic polyurethanes afanele ukusetshenziswa okubanzi okungase kudinge kokubili ukuqina okushisayo kanye/noma ukukhanya.

I-Aliphatic TPU, ngakolunye uhlangothi, azinzile ngokwemvelo futhi imelana nokuguquguquka kokuchayeka kwe-UV. Zibuye zicace ngokubonakalayo, okuzenza zibe ama-laminates afanelekile okufaka ingilazi kanye ne-glazing yokuphepha.