TPU Intshayelelo

I-Thermoplastic polyurethane (TPU) yi-elastomer ye-thermoplastic ekwazi ukunyibilika enokuqina okuphezulu kunye nokuguquguquka. Ineempawu zazo zombini iplastiki kunye nerabha kwaye ke ibonisa iipropathi ezinjengokuqina, ukuguquguquka kunye namandla abalaseleyo okuqina.

I-TPU, isizukulwana esitsha semathiriyeli ye-thermoplastic elastomer. Ulwakhiwo lwalo lubandakanya icandelo elinzima kunye necandelo elithambileyo, elenziwe ngama-polyols, i-isocyanate kunye ne-chain extender nge-condensation reaction.
Iimpawu ze-TPU zibandakanya ukulungelelaniswa kokusingqongileyo, ukusetyenzwa ngokulula, ukusebenza ngeendlela ezahlukeneyo, ukusetyenzwa ngokutsha, njl njl.; I-TPU inepropathi egqwesileyo yomzimba, ukuxhathisa i-abrasion, umbala olula, ukuqina okuphezulu, ukumelana nemozulu, ukuxhathisa kwe-oyile kunye nokuguquguquka kweqondo eliphantsi njl., esetyenziswa ngokubanzi kwifowuni ityala, ukugqithisa, izihlangu, ifilimu, i-adhesive, ibhanti kunye ne-conveyor, i-wire & cable njl.

Ngokohlobo lwe-polyols, i-TPU inokohlulwa ibe yibakala le-polyester, ibakala le-polyether, ibakala le-polycaprolactone kunye nebakala le-polycarbonate njl. Iindidi ezahlukeneyo zeTPU zinepropathi eyahlukileyo, zingasetyenziswa kwizicelo ezahlukeneyo. Uluhlu lobunzima be-TPU lubanzi, lugubungela i-50A-85D.

• I-Soft Segment (i-polyether okanye i-polyester): Yakhiwe ngaphandle kwe-polyol kunye ne-isocyanate enikezela ukuguquguquka kunye ne-elastomeric character ye-TPU.
• Inxalenye enzima (ivumba elimnandi okanye i-aliphatic): Yakhiwe ukusuka kwikhonkco le-extender kunye ne-isocyanate enika i-TPU ukuqina kwayo kunye neempawu zokusebenza komzimba.
  1. Ii-TPU ezivumbayo - ezisekelwe kwi-isocyanates ezifana ne-MDI
  2. I-Aliphatic TPUs - esekelwe kwi-isocyanates njenge-HMDI, i-HDI kunye ne-IPDI

I-Thermoplastic polyurethanes i-elastic kwaye iyanyibilika. Izongezo zinokuphucula ukuzinza kwe-dimensional kunye nokuxhathisa ubushushu, ukunciphisa ukukhuhlana, kunye nokwandisa ukungabikho kwedangatye, ukuxhathisa i-fungus, kunye nemozulu.

Ii-TPU ezinevumba elimnandi zinamandla, ii-resin ezinenjongo ngokubanzi ezixhathisa ukuhlaselwa yi-microbes, zime kakuhle kwiikhemikhali. I-aesthetic drawback, nangona kunjalo, kukuthambekela kokuthotywa kwe-aromatics ngeendlela ze-radical zamahhala ezibangelwa kukuvezwa kubushushu okanye ukukhanya kwe-ultraviolet. Oku kuthotywa kukhokelela kumbala wemveliso kunye nokulahleka kweempawu ezibonakalayo.

Izongezo ezifana ne-antioxidants, i-UV absorbers, i-amine stabilizers ethintelweyo isetyenziselwa ukukhusela i-polyurethanes kwi-oxidation ye-UV eyenziwe ngokukhanya kwaye ke yenza i-thermoplastic polyurethanes ilungele uluhlu olubanzi lwezicelo ezinokufuna zombini i-thermal kunye / okanye ukuzinza kokukhanya.

I-Aliphatic TPU, kwelinye icala, zizinzile ngokwendalo kwaye ziyaxhathisa ukuvela kwe-UV. Zikwacacile optically, nto leyo ezenza ukuba zilungele laminates for encapsulating glass kunye neglazing yokhuseleko.