NBR / PVC rubber plastic foam material (closed hole type)
2019-12-23 05:10:00
projectperformance indexunitplateTubeApparent densityg cm370-250combustion performance-B1Thermal conductivity(average tempera
| project | performance index | |||
| unit | plate | Tube | ||
| Apparent density | g/cm3 | 70-250 | ||
| combustion performance | - | B1 | ||
|
Thermal conductivity
(average temperature)
|
-200C | W/m.k | ≤0.036 | |
| 00C | ≤0.038 | |||
| 400C | ≤0.043 | |||
| Moisture permeability | Moisture permeability coefficient | g/(m.s.Pa) | ≤4.4x10-10 | |
| Wet resistance factor | - | ≥4.5x102 | ||
| Vacuum water absorption | % | ≤10 | ||
| dimensional stability105℃±3℃,7d | % | ≤10.0 | ||
| tear strength | N/cm | - | ≥2.5 | |
| Compression resilience50%/75h | % | ≥70 | ||
| Oxygen resistance202mPa/2ooh | - | No crazing | ||
| Aging resistance150h | -- | Slight wrinkling, no crack, pinhole, no deformation | ||
| Remarks | Refer to gbt17794-199 | |||
Features and uses:
1. Heat preservation, insulation, antifreeze, cold resistance and buffer.
2. It is mainly used in construction, metallurgy, petroleum, chemical industry, shipbuilding, automobile, electrical appliances, national defense, aviation and other fields.
