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home > PRODUCT > Home appliance > NBR / PVC rubber plastic foam material (closed hole type)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 |