Donspray 504 HFC-245fa puag muab polyols
Donspray 504 HFC-245fa puag muab polyols
Taw qhia
DonSpray504 yog cov tshuaj tsuag sib xyaw polyols, tus neeg sawv cev tshuab yog 245fa es tsis txhob HCFC-141B, nws reacts nrog isocyanate los ua npuas dej uas muaj kev ua tau zoo, uas yog raws li hauv qab no,
1) zoo thiab uniformity cell
2) Tsawg thermal conductivity
3) nplaim taws tsis kam
4) zoo low-temperature stability.
Nws siv rau txhua yam ntawm thermal rwb thaiv tsev engineering uas siv cov cuab yeej tshuaj tsuag, xws li chav txias, lauj kaub, cov kav dej loj thiab kev tsim kho metope thiab lwm yam.
PHYSICAL PROPERTY
| Qhov tshwm sim | Xim daj mus rau xim av viscous kua |
| Hydroxyl Tus nqi mgKOH/g | 200-300 |
| Dynamic viscosity (25 ℃) mPa.S | 100-200 |
| Lub ntiajteb txawj nqus tshwj xeeb (20 ℃) g / ml | 1.12-1.20 Nws |
| Cia kub ℃ | 10-25 |
| Cia ruaj khov hli | 6 |
RECOMMENDED RATIO
| Cov khoom siv raw | pbw ua |
| DonSpray 504 muab polyols | 100 g |
| Isocyanate MDI | Yog '- 100-105 g |
Reactivity yam ntxwv(Qhov kub ntawm qhov system yog 20 ℃, thiab tus nqi pes tsawg sib txawv nyob ntawm kev ua haujlwm)
| Cream Sijhawm s | 3-5 |
| Gel Sijhawm s | 6-10 |
FOAM kev ua yeeb yam
| Cov khoom | Chav ntsuas ntsuas | Imperial Unit | ||
| Txau ntom | wb 6343 | ≥35kg / m3 | ASTM D 1622, ASTM D 1622, thiab lwm yam | ≥2.18 lb/ft3 |
| Kaw-cell Rate | wb 10799 | ≥90% | ASTM D 1940, 1940 1 | ≥90% |
| Thawj Thermal conductivity (15 ℃) | wb 3399 | ≤ 24mW / (mK) | ASTM C 518 (Tshooj 518 | ≥ 2.16 / nti |
| Compressive zog | GB / T8813 | ≥150kPa | ASTM D 1621 | ≥ 21.76 PSI |
| Adhesive zog | GB/T16777 | ≥120kPa | ASTM D 1623, ASTM D 1623, Ntawv pov thawj | ≥17.40PSI |
| Dimentional Stability 24h -20 ℃ | GB / T8811 | ≤ 1% | ASTM D 2126 1 | ≤ 1% |
| 24h70 ℃ | ≤ 1.5% | ≤ 1.5% | ||
| Kev nqus dej | wb 8810 | ≤ 3% | ASTM E 96 | ≤ 3% |
| Hluav taws kub tsis kam | wb 8624 | Chav B2 | ASTM D 2863-13 1 | Chav B2 |
Ntim
220kg / nruas lossis 1000kg / IBC, 20,000kg / flexi tank lossis ISO Tank.
