Donfoam 812 HCFC-141B msingi mchanganyiko polyols kwa kuzuia povu
Donfoam 812 HCFC-141B msingi mchanganyiko polyols kwa kuzuia povu
UTANGULIZI
Donfoam 812 mchanganyiko polyether polyols kutumika kwa ajili ya kuzalisha PUR kuzuia povu. povu ina sare ya mkononi, chini mafuta conductivity, mafuta insulation utendaji ni nzuri, moto retardant utendaji ni nzuri, chini ya joto hakuna kushuka ufa nk
Sana kutumika katika mchakato wa kila aina ya insulation kazi kama vile: ujenzi wa ukuta wa nje, uhifadhi baridi, mizinga, mabomba kubwa nk
PROPERTY TABIA
Mwonekano
Dynamic mnato (25 ℃) mPa.S Density (20 ℃) g / ml Uhifadhi joto ℃ Uhifadhi utulivu mwezi |
Mwanga njano na maji kahawia uwazi 250 ± 50 1.17 ± 0.1 10-25 6 |
Ilipendekeza RATIO
vitu |
PBW |
Kuchanganya Polyether Polyol
ISOCYANATE |
100 130 |
TECHNOLOGY na reactivity (thamani halisi inatofautiana kulingana na hali ya usindikaji)
mwongozo kuchanganya |
|
Raw Material Joto ℃
Mold Joto ℃ CT s GT s TFT s Free Density kg / m 3 |
20-25 Ambient Joto (15-45 ℃) 35-60 140-180 240-260 26-28 |
FOAM maonyesho
item |
Mtihani darasa la |
vipimo |
Kwa ujumla Molding Density
Molding Core Density |
GB 6343 |
40-45kg / m 3 38-42kg / m |
Kiwango cha imefungwa kiini |
GB 10799 |
≥90% |
Awali Thermal conductivity (15 ℃) |
GB 3399 |
≤24mW / (MK) |
compressive nguvu |
GB / T8813 |
≥150kPa |
dimensional ya uthabiti
24h -20 ℃ RH90 70 ℃ |
GB / T8811 |
≤1% ≤1.5% |
Maji Ufyonzaji Kiwango |
GB 8810 |
≤3% |
kuwaka |
ASTM E84 |
Class A |