Sreath PTMG/TDI
cruas: cladach A 75A – cladach D 60D
Tha feartan comas-obrachaidh math aig an toradh, raon cruas farsaing, deagh sheasmhachd, caitheamh caitheamh agus feartan meacanaigeach sàr-mhath.
Air a chleachdadh airson toraidhean measgaichte elastomer polyurethane leithid cuibhle rubair àrd elastagach, plàta sgrion, rolair rubair, fàinne ròin.
Tha 号 | D2135 | D2142 | D2150 | D2162 | D2170 | D2196 |
NCO含量/% | 3.5±0.1 | 4.2±0.2 | 5.0±0.2 | 6.2±0.2 | 7.0±0.2 | 9.65±0.2 |
20 ℃ mu thimcheall | Luchdaich sìos | Luchdaich sìos | Luchdaich sìos | Luchdaich sìos | Luchdaich sìos | Luchdaich sìos |
MOCA100g 预聚体用量/g | 10 | 12.1 | 14.3 | 18 | 20.5 | 27 |
粘 度 (85 ℃) / mPa · s | 1200 | 750 | 1200 | 480 | 320 | 350 |
混合温度/ ℃(预聚 体/MOCA) | 85/120 | 85/120 | 80/120 | 80/120 | 75/120 | 70/110 |
凝胶时间/mion | 11 | 10 | 8 | 6 | 4 | 2 |
后硫化时间 (100 ℃) / h | 10 | 10 | 10 | 10 | 10 | 10 |
硬 度(邵尔 A) | 85±2 | 90±1 | 93±1 | 95±1 | 97±1 | 75±2 尔 D |
100% gu h-ìosal/MPa | 5.4 | 7.5 | 9.1 | 12.8 | 18.5 | 32.6 |
300% gu h-ìosal/MPa | 9.6 | 14.1 | 17.2 | 36.3 | 42.6 | - |
拉伸强度/MPa | 27 | 33 | 39 | 48 | 49 | 54 |
扯断伸长率/ % | 550 | 500 | 440 | 350 | 320 | 220 |
撕裂 强 度(直角)/(KN/m) | 65 | 78 | 88 | 95 | 111 | 160 |
撕裂 强 度(裤 型)/(KN/m) | 21 | 28 | 33 | 33 | 43 | 44 |
回 弹/ % | 61 | 54 | 49 | 47 | 45 | 51 |
密 度 (25 C)/(g/cm3) | 1.07 | 1.09 | 1.12 | 1.13 | 1.15 | 1.18 |
DÌON/mm³ | 39 | 39 | 45 | 38 | 52 | 70 |