MDI Prepolymer
paakiki: kahakai A 75A - kahakai A 95A
Loaʻa i ka huahana nā hiʻohiʻona o ka pale lole maikaʻi, ke kūpaʻa a me nā mea mechanical maikaʻi loa.
Hoʻohana ʻia no ka hana ʻana i nā huahana polyurethane elastomer like ʻole e like me nā huila wili, nā papa kānana a me nā apo hoʻopaʻa.
|
Hoʻohālike
| D2560 | D2575 | D2590 | D3565 | D3575 | D3590 |
| NCO/% | 6.0±0.2 | 7.5±0.2 | 9.0±0.2 | 6.5±0.2 | 7.5±0.2 | 9.0±0.2 |
| Kūlana ma 20 ℃ | Pūnaehana PTMG, paʻa keʻokeʻo | Pūnaehana polyester, paʻa keʻokeʻo | ||||
| BDO100g Prepolymer / g | 6.1 | 7.8 | 9.3 | 6.8 | 7.8 | 9.3 |
| Viscosity (85 ℃)/mPa·s | 1400 | 1000 | 750 | 1400 | 1200 | 1000 |
| Ka wela hui ʻana / ℃（ Prepolymer /1,4BD） | 80/40 | 80/40 | 80/40 | 80/40 | 80/40 | 80/40 |
| Ka manawa gel / min | 10 | 8 | 7 | 10 | 8 | 7 |
| ʻO ka manawa ma hope o ka vulcanization (110 ℃)/h | 48 | 48 | 48 | 48 | 48 | 48 |
| ʻOʻoleʻa（Kai A） | 87±2 | 90±2 | 95±2 | 85±2 | 90±2 | 95±2 |
| 100% Modulus/MPa | 6 | 9.2 | 12.6 | 5 | 8.6 | 12.3 |
| 300% Modulus /MPa | 17 | 16.6 | 18.9 | 10 | 19.7 | 29.1 |
| Ka ikaika uʻi /MPa | 44 | 43 | 45 | 50 | 46 | 55 |
| Elongation / % | 472 | 683 | 500 | 540 | 580 | 530 |
| Kaha waimaka /（KN/m） | 75 | 110 | 130 | 82 | 117 | 132 |
| Hoʻihoʻi hou / % | 61 | 64 | 55 | 43 | 35 | 39 |
| Māmā (24 ℃)/（g/ knm3） | 1.11 | 1.11 | 1.12 | 1.23 | 1.26 | 1.24 |
| ʻAʻahu ʻaina /mm³ | 36 | 44 | 44 | 32 | 35 | 38 |
E kākau i kāu leka ma aneʻi a hoʻouna mai iā mākou
