TPU, Thermoplastic Polyurethane, yog ib qho elastomer tsim los ntawm cov tshuaj tiv thaiv ntawm polyol, cov saw txuas ntxiv thiab diisocyanate. TPU yog ib puag ncig tus phooj ywg yas elastomer tsis muaj plasticizer, thiab nws tuaj yeem siv rau ntau yam lag luam.
* Cov khoom ntawm TPU
TPU muaj cov yam ntxwv ntawm cov yam ntxwv ntawm roj hmab thiab yas, thiab nws muaj zog tensile zoo heev. Cov hauv qab no yog cov khoom tseem ceeb ntawm TPU:
1. Zoo hnav tsis kam thiab cuam tshuam tsis kam
2. Kev ua haujlwm txias txias: TPU tseem muaj qhov yooj yim hauv qab -35 degree
3. Kev ua haujlwm kub zoo heev: TPU tuaj yeem dais qhov kub siab tshaj 120 degree
4. Kev ua haujlwm yooj yim
5. Kev tiv thaiv oxidation
6. Cov roj thiab dej tsis zoo
7. Muaj peev xwm thauj khoom loj
8. Siab elasticity hla tag nrho cov hardness ntau yam
* Kev siv ntawm TPU
TPU yog siv rau hauv cov nram qab no:
1. Apparel: waterproof thiab breathable coatings down tsho, raincoats thiab cua-coats, thiab lwm yam.
2. Khau: sab sauv thiab vamp linings ntawm nce toj khau boots, daus khau boots thiab skating khau, thiab lwm yam.
3. Tsheb: lub rooj zaum hauv tsheb, insulated panels thiab log tsheb, thiab lwm yam.
4. Kev siv tshuaj kho mob: cov ntaub qhwv lub qhov txhab, cov hlab ntsha, cov ris tsho phais, hnab looj tes thiab airbags ntawm lub txaj ua haujlwm.
5. Cov khoom siv tiv thaiv: dav hlau roj tso tsheb hlau luam, cov hnab dej tub rog, thiab lub tsho cawm neeg txoj sia, thiab lwm yam.
6. Cov khoom lag luam: cov khoom siv tsis muaj dej tsis zoo, cov khoom siv hluav taws xob, thiab cov asbestos, thiab lwm yam.
* Hom TPU thiab kev ua haujlwm ntawm TPU
TPU yog ib qho linear segmented thaiv copolymer muaj li ntawm cov muag muag thiab tawv. Mos ntu, polyether, muab kev yooj yim, muaj peev xwm zoo thiab ua siab ntev kub. Cov ntu nyuaj, muaj ntxhiab tsw, muab qhov ntsuas kub tsis kam, tiv thaiv hydrolysis, toughness thiab resilience.
TPU tuaj yeem ua tiav ntau txoj hauv kev, xws li txhaj tshuaj, extrusion, tshuab, pwm tshuab, spinning, thiab lwm yam. Txhaj thiab extrusion yog cov txheej txheem ntau tshaj plaws, uas tuav txog 70% lossis ntau dua. Kev txhaj tshuaj yog feem ntau siv hauv kev tsim cov khau khau, khau khiab, thiab lwm yam, thaum kub, siab thiab molding voj voog yog lub hauv paus ntawm kev txhaj tshuaj molding khoom. Extrusion feem ntau yog siv hauv cov kav dej yas thiab cov yeeb yaj kiab yas, vim tias cov khoom siv extrusion yuav tsum muaj peev xwm zoo, hnav tsis kam thiab pliability.
Xav paub ntau ntxiv thiab cov ntaub ntawv technoly thovtiv tauj peb.