Cov khoom
Cov Polyether Tshwj Xeeb-Qhov Nyhav Molecular Tsawg PET Polyether
Cov Khoom thiab Kev Siv
Nws yog kua ntawm chav tsev kub, uas yooj yim rau siv thiab ua. Iav hloov pauv kub ntawm -80 ℃, nrog kev ua tau zoo heev ntawm qhov kub qis, cov khoom siv kho tshuab ntawm nws cov khoom elastomer thiab PTMG ze rau PTMG, tuaj yeem hloov PTMG hauv qhov chaw kub qis.
Nrog kev ywj pheej zoo ntawm cov molecular, nws tuaj yeem hloov PTMG hauv cov tawv nqaij yooj ywm thiab cov kua luam ntawv; nws tuaj yeem siv rau hauv cov nplaum uas tsis tshua muaj qhov kub thiab txias, cov tshuaj pleev xim, polyurethane elastomers thiab lwm yam.
Cov lus qhia txog kev siv tshuab
| Khoom | PET500 | PET1000 | PET2000 |
| Tus lej nruab nrab ntawm qhov hnyav molecular | 400-600 | 800-1200 | 1700-2300 |
| Tus nqi hydroxyl, mgKOH / g | 177.7～266.5 | 88.8 ~ 133.2 | 46.3~62.7 |
| Viscosity (40 ℃), Pa.s | ≤0.5 | ≤1.0 | ≤5.0 |
| Tus nqi kua qaub, mgKOH / g | ≤0.05 | ≤0.05 | ≤0.05 |
| Feem pua ntawm cov dej,% | ≤0.05 | ≤0.05 | ≤0.05 |
