Donpanel 412 HCFC-141b puag muab polyols rau PUR
Donpanel 412 HCFC-141b puag muab polyols rau PUR
INTRODUCTION
DonPanel 412 blend polyols yog ib qho kev sib xyaw uas muaj cov polyether polyols, surfactants, catalysts thiab nplaim retardant nyob rau hauv ib tug tshwj xeeb piv.Cov npuas dej muaj cov khoom zoo thermal rwb thaiv tsev, lub teeb hauv qhov hnyav, siab compression lub zog thiab nplaim hluav taws thiab lwm yam zoo.Nws yog dav siv los tsim cov ntawv sandwich, corrugated daim hlau thiab lwm yam, uas siv los ua cov khw muag khoom txias, txee, chaw nyob thiab lwm yam.
PHYSICAL PROPERTY
| Qhov tshwm sim | Lub teeb daj pob tshab viscous kua |
| Hydroxyl tus nqi mgKOH/g | 300-360 |
| Dynamic viscosity (25 ℃) mPa.S | 3000-4000 |
| Qhov ceev (20 ℃) g / ml | 1.05-1.16 Nws |
| Cia kub ℃ | 10-25 |
| Cia ruaj khov hli | 6 |
RECOMMENDED RATIO
| Cov khoom siv raw | pbw ua |
| sib tov polyols | 100 |
| Isocyanate | 100-120 |
TECHNOLOGY THIAB REACTIVITY(tus nqi tseeb txawv nyob ntawm kev ua haujlwm)
| cov khoom | Kev sib xyaw ua ke | Tshuab Siab Siab |
| Raw khoom kub ℃ | 20-25 | 20-25 |
| Moulding kub ℃ | 35-45 : kuv | 35-45 : kuv |
| Cream sij hawm s | 30-50 | 30-50 |
| Gel time s | 120-200 Nws | 70-150 : kuv |
| Dawb ntom ntom kg / m3 | 24-26 | 23-26 |
MACHINERY FOAM PERMANCES
| Moulding ceev | wb 6343 | ≥38kg / m3 |
| Kaw-cell tus nqi | wb 10799 | ≥90% |
| Thermal conductivity (15 ℃) | wb 3399 | ≤ 22mW / (mK) |
| Compression zog | GB/T 8813 | ≥140kPa |
| Dimensional stability 24h -20 ℃ |
GB/T 8811 | ≤ 1% |
| 24h 100 ℃ | ≤ 1.5% | |
| Flammability (Oxygen Index) | GB / T8624 | > 23.0 |
