MDI Prepolymer
adkaanta: xeebta A 75A - xeebta A 95A
Alaabtu waxay leedahay sifooyin caabbinta xirashada wanaagsan, adkeysi iyo sifooyin farsamo oo aad u fiican.
Loo isticmaalo samaynta alaabada elastomer-ka poliurethane ee kala duwan sida taayirrada caagga ah, saxannada shaandhada iyo giraangiraha xidhitaanka.
Qaabka
| 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 |
Ku sheeg 20 ℃ | Nidaamka PTMG, cad cad | Nidaamka polyester-ka, cad cad | ||||
BDO100g oo ah Prepolymer/g | 6.1 | 7.8 | 9.3 | 6.8 | 7.8 | 9.3 |
Viscosity (85 ℃)/mPa·s | 1400 | 1000 | 750 | 1400 | 1200 | 1000 |
Isku darka heerkulka / ℃ (Prepolymer / 1,4BD) | 80/40 | 80/40 | 80/40 | 80/40 | 80/40 | 80/40 |
Waqtiga jel /daqiiqo | 10 | 8 | 7 | 10 | 8 | 7 |
Waqtiga vulcanization ka dib (110 ℃)/saacaddii | 48 | 48 | 48 | 48 | 48 | 48 |
Hardness ( Xeebta 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% Modul / MPa | 17 | 16.6 | 18.9 | 10 | 19.7 | 29.1 |
Xoog xajin/MPa | 44 | 43 | 45 | 50 | 46 | 55 |
Kordhinta /% | 472 | 683 | 500 | 540 | 580 | 530 |
Xoogga ilmada / (KN/m) | 75 | 110 | 130 | 82 | 117 | 132 |
Soo noqoshada /% | 61 | 64 | 55 | 43 | 35 | 39 |
Cufnaanta (24 ℃)/ (g/cm3) | 1.11 | 1.11 | 1.12 | 1.23 | 1.26 | 1.24 |
Dharka dharka /mm³ | 36 | 44 | 44 | 32 | 35 | 38 |
Halkan ku qor fariintaada oo noo soo dir