MDI prepolymer
Hardness: Ntug Dej A155a - Ntug Dej Ib 95A
Cov khoom muaj cov yam ntxwv ntawm kev hnav zoo tiv thaiv, resilience thiab zoo heev neeg kho tshuab cov khoom.
Siv rau kev ua kom tsis txhob ua kom tsis zoo polyurethane elastomer cov khoom xws li cov log roj hmab, sab cib plauv thiab cov nplhaib sib khi.
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Tus qauv
| 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 |
| Xeev ntawm 20 ℃ | PTMG system, dawb khoom | Polyester System, Khoom Dawb | ||||
| Tus ntses las100g npaj / g | 6.1 | 7.8 | 9.3 | 6.8 | 7.8 | 9.3 |
| Viscosity (85 ℃) / mpa a | 1400 | 1000 | 750 | 1400 | 1200 | 1000 |
| Sib tov kub / ℃ (Prepolymer / 1,4BD) | 80/40 | 80/40 | 80/40 | 80/40 | 80/40 | 80/40 |
| Gel lub sij hawm / min | 10 | 8 | 7 | 10 | 8 | 7 |
| Ncej Post Lub Sij Hawm (110 ℃) / h | 48 | 48 | 48 | 48 | 48 | 48 |
| Hardness (Ntug Dej 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 |
| Lub zog tensile / MPA | 44 | 43 | 45 | 50 | 46 | 55 |
| Elongation /% | 472 | 683 | 500 | 540 | 580 | 530 |
| Kua Muag Lub Zog / (Kn / M) | 75 | 110 | 130 | 82 | 117 | 132 |
| Rov qab /% | 61 | 64 | 55 | 43 | 35 | 39 |
| Ntom ntom (24 ℃) / (G / cm3) | 1.11 | 1.11 | 1.12 | 1.23 | 1.26 | 1.24 |
| Noj hnav / mm³ | 36 | 44 | 44 | 32 | 35 | 38 |
Sau koj cov lus ntawm no thiab xa mus rau peb
