Donfoam 812 HCFC-141B puag muab polyols rau thaiv npuas
Donfoam 812 HCFC-141B puag muab polyols rau thaiv npuas
Taw qhia
Donfoam 812 muab polyether polyols siv los tsim PUR block ua npuas ncauj.Cov npuas dej muaj cov xovtooj ntawm tes, tsis tshua muaj thermal conductivity, thermal rwb thaiv tsev kev ua tau zoo, nplaim taws ua haujlwm zoo, tsis tshua muaj kub tsis muaj shrinking thiab lwm yam.
Dav siv nyob rau hauv cov txheej txheem ntawm txhua yam ntawm rwb thaiv tsev ua hauj lwm xws li: lub tsev sab nrauv phab ntsa, txias cia, tso tsheb hlau luam, cov kav dej loj thiab lwm yam.
PHYSICAL PROPERTY
| Qhov tshwm sim Dynamic viscosity (25 ℃) mPa.S Qhov ceev (20 ℃) g / ml Cia kub ℃ Cia ruaj khov hli | Lub teeb daj rau xim av pob tshab kua 250 ± 50 1.17 ± 0.1 10-25 6 |
RECOMMENDED RATIO
| Cov khoom | PBW |
| Sib tov Polyether Polyol Isocyanate | 100 130 |
TECHNOLOGY THIAB REACTIVITY(tus nqi tseeb txawv nyob ntawm kev ua haujlwm)
| Kev Taw Qhia Mixing | |
| Raw Khoom Kub ℃ Pwm Kub ℃ CT os GT os TFT s Dawb ntom kg / m3 | 20-25 Ambient Kub (15-45 ℃) 35-60 : kuv 140-180 : kuv 240-260 : kuv 26-28 |
FOAM kev ua yeeb yam
| Yam khoom | Test Standard | Specification |
| Zuag qhia tag nrho Moulding ntom Moulding Core ntom ntom | wb 6343 | 40-45kg / m3 38-42 kg / m |
| Kaw-cell Rate | wb 10799 | ≥90% |
| Thawj Thermal conductivity (15 ℃) | wb 3399 | ≤ 24mW / (mK) |
| Compressive zog | GB / T8813 | ≥150kPa |
| Dimensional Stability 24h -20 ℃ RH90 70 ℃ | GB / T8811 | ≤ 1% ≤ 1.5% |
| Cov dej nqus dej | wb 8810 | ≤ 3% |
| Flammability | ASTM E 84 | Chav Kawm A |
