Kev Cai Cast Polyurethane Roj Hmab Daim Ntawv PU Rod
Kev Taw Qhia
Polyurethane, feem ntau yog cov khoom siv sib xyaw tshiab ntawm yas thiab roj hmab, yog tsim los ntawm kev sib xyaw tshuaj ntawm polymer polyalcohol thiab isocyanate los ntawm kev txuas ntxiv thiab kev sib txuas hla. Nws muab faib ua polyether thiab polyester raws li nws cov saw hlau.
Cov Lus Qhia Tshwj Xeeb
PU Qws
| Khoom | polyurethane PU pas nrig |
| Xim | Ntuj / Xim av, Liab / Daj |
| Txoj kab uas hla | 10-350 hli |
| Ntev | 300 hli, 500 hli, 1000 hli |
Daim Ntawv Qhia Txog Lub Cev
| Lub Npe Khoom | PU Ntawv/Qws |
| Khoom siv | PU (Polyurethane) |
| Xim | Dawb/Tshuaj yej/Liab |
| Qhov Ceev | 1.18g/cm3 |
| Hradnes | 90A |
| 300% Tensile Moudulus | 80-100kfg/cm2 |
| Lub zog tensile | 200kfg/cm2 |
| Kev nthuav dav | 4 |
| Kev muaj zog | 0.28 |
| Daim Ntawv Thov | Cov Khoom Siv Hauv Tsev / Cov Khoom Siv Hauv Tsev / Tsheb |
