Donfoam 812 HCFC-141B base mix polyols maka ngọngọ ụfụfụ
Donfoam 812 HCFC-141B base mix polyols maka ngọngọ ụfụfụ
Okwu mmalite
Donfoam 812 ngwakọta polyether polyols eji emepụta PUR ngọngọ ụfụfụ. The ụfụfụ nwere edo cell , ala thermal conductivity , thermal mkpuchi arụmọrụ dị mma, ire retardant arụmọrụ dị mma, ala okpomọkụ ọ dịghị shrinking mgbape wdg.
A na-eji ya eme ihe na usoro ọrụ mkpuchi dị iche iche dị ka: mgbidi dị n'èzí, nchekwa oyi, tankị, nnukwu ọkpọkọ wdg.
ALA nke anụ ahụ
| Ọdịdị Viscosity dị ike (25 ℃) mPa.S Njupụta (20 ℃) g/ml Ọnọdụ nchekwa ℃ Nchekwa nkwụsi ike ọnwa | Mmiri mmiri na-egbuke egbuke na-acha odo odo na agba aja aja 250±50 1.17± 0.1 10-25 6 |
RATIO akwadoro
| Ihe | PBW |
| Gwakọta Polyether Polyol Isocyanate | 100 130 |
Nkà na ụzụ na imeghachi omume(ọnụahịa ziri ezi dịgasị iche dabere na ọnọdụ nhazi)
| Ngwakọta akwụkwọ ntuziaka | |
| Okpomọkụ ihe akụrụngwa ℃ Igwe ọkụ ℃ CT s GT s TFT s Njupụta efu kg/m3 | 20-25 Okpomọkụ gburugburu (15-45 ℃) 35-60 140-180 240-260 26-28 |
ỌRỤ Ụfụ
| Ihe | Nlele ọkọlọtọ | Nkọwapụta |
| Njupụta ịkpụzi mkpokọta Njupụta Isi Nhazi | GB 6343 | 40-45kg/m3 38-42kg/m |
| Ọnụego cell mechiri emechi | GB 10799 | ≥90% |
| Nrụpụta ọkụ izizi (15 ℃) | GB 3399 | ≤24mW/(mK) |
| Ike mkpakọ | GB/T8813 | ≥150kPa |
| Nkwụsi ike akụkụ 24h -20 ℃ RH90 70 ℃ | GB/T8811 | ≤1% ≤1.5% |
| Ọnụego mmịpụta mmiri | GB 8810 | ≤3% |
| Ọkụ ọkụ | ASTM E84 | Klas A |
