Donfoam 824PIR HFC-245fa base blend polyols for continuous PIR block foam
davamlı PIR blok köpük üçün Donfoam 824PIR HFC-245fa baza qarışığı polyols
GİRİŞ
DonFoam 824/PIR is a kind of blend polyols using hfc-245fa foaming agent, with polyol as the main raw material, mixed with special auxiliary agent, suitable for the insulation of construction, transportation, shell and other products. This material is specially developed for continuous line .The polyurethane product prepared by reacting it with isocyanate has the following advantages:
-- Eco-friendly, without destroying the ozone layer
-- High compressive strength and good homogeneity of isotropic strength
-- Excellent thermal insulation performance and dimensional stability
FİZİKİ PROPERTY
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DonFoam 824/PIR |
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| görünüş
OH value mgKOH/g Dynamic viscosity（25℃） mPa.S Density （20℃） g/ml Storage temperatur ℃ Storage stability ※ months |
qəhvəyi şəffaf maye Light sarı 250-400 300-500 1.15-1.25 10-25 3 |
TÖVSİYƏLƏR ORANI
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Pbw |
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| DonFoam824/PIR
Isocyanate |
100 150-200 |
TECHNOLOGY AND Reaktivlik (dəqiq dəyər emal şəraitindən asılı olaraq dəyişir)
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Manual Mix |
Yüksək təzyiq |
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| Raw Material Temperature °C
Krem vaxt S Gel vaxt S Pulsuz sıxlığı Kg / m 3 |
20-25 20-50 160-300 40-50 |
20-25 15-45 140-260 40-50 |
FOAM çıxışları
| Ümumi Molding sıxlığı
Closed-cell Rate İlkin Termal Keçiricilik (15 ℃) Təzyiq gücü Ölçü Sabitlik 24 -20 ℃ 24 saat 100 ℃ alışma qabiliyyəti |
GB / 6343 T GB / T 10799 GB / 3399 T GB / 8813 T GB / 8811 T
GB / 8624 T |
≥40 Kg / m3
≥90% ≤22mW / mk ≥150 kPa ≤0.5% ≤1.0% B2, B1
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