TPU (Thermoplastic polyurethanes) yog ib yam khoom ntawm roj hmab thiab yas.Cov khoom siv yog roj thiab dej resistant thiab muaj zoo heev load-nqa thiab cuam tshuam kuj.TPU yog ib puag ncig tus phooj ywg tsis muaj tshuaj lom cov khoom siv polymer.Cov khoom siv Tpu muaj qhov zoo ntawm cov elasticity siab ntawm cov roj hmab thiab kev ua haujlwm ntawm cov yas.Nws tsis tas yuav vulcanization thiab tuaj yeem ua tiav los ntawm cov tshuab thermoplastic molding tshuab.Cias muab, thermoplastic elastomer tpu yog thermoformed thiab tuaj yeem tsim tau siv cov tshuab txhaj tshuaj molding, extruders, tshuab moulding tshuab.Cov khib nyiab thiab cov khoom seem yog 100% rov ua dua tshiab, cov khoom siv raw ntawm kev xaiv los hloov PVC, roj hmab thiab silicone thiab ua tus thawj coj hauv kev lag luam roj hmab thiab yas.

Roj Hmab: Roj Hmab yog cov organic polymer uas muaj qhov hnyav ntawm ntau pua txhiab.Kev kho Vulcanization yuav tsum tau ua kom muaj qhov elasticity siab hauv qhov kub ntawm -50 txog 150°C. Tsawg elastic modulus, 3 qhov kev txiav txim siab qis dua cov ntaub ntawv zoo tib yam, loj deformation, elongation tuaj yeem ncav cuag 1000% (cov ntaub ntawv dav dav tsawg dua 1%), cua sov tawm thaum lub sij hawm ncab, thiab elasticity nce nrog kub, uas yog kuj qis dua cov ntaub ntawv dav dav ntawm qhov tsis sib xws.

Qhov txawv ntawm TPU thiab roj hmab:

1. Roj hmab kuj yog mos, thiab qhov hardness ntau (0-100a) ntawm tpu khoom yog dav heev ntawm roj hmab thiab yas;

2. Lub tswv yim ntawm elastomer yog dav heev, tpu kuj hu ua thermoplastic roj hmab (tpr), thiab roj hmab feem ntau yog hais txog cov roj hmab thermosetting;

3. Cov txheej txheem ua haujlwm txawv.Roj hmab yog ua tiav los ntawm kev sib xyaw roj hmab, thaum TPU feem ntau ua tiav los ntawm extrusion;

4. Cov khoom sib txawv.Roj hmab feem ntau yuav tsum tau ntxiv ntau yam additives thiab yuav tsum tau vulcanized rau reinforcement, thaum lub tpu kev ua tau zoo ntawm thermoplastic elastomers zoo heev;

5. Lub thermoplastic elastomer tpu muaj cov qauv linear thiab yog lub cev sib txuas los ntawm hydrogen bonding.Hydrogen bonds tawg ntawm qhov kub thiab txias thiab yog yas.Roj hmab yog chemically cross-linked thiab tsis thermoplastic.

6. Cov khoom siv yas TPU muaj kev hnav zoo heev, uas yog ntau tshaj li tsib npaug ntawm cov roj hmab ntuj, thiab yog ib qho ntawm cov khoom nyiam rau cov khoom hnav-resistant.