Delivery Time:10-15 days after receiving deposit.
Certification:ISO MA
Nanjing Ourgreen 700Kpa, Styrofoam Board, Extruded Polystyrene Foam Board for High-speed Railway
Blowing Agents of Ourgreen 700Kpa Extruded Polystyrene Foam Board
The Blowing Agent of CO2 is added in the formulation in order to reach a Compression Strength of 700Kpa.
The CO2 tends to make smaller pore size and make density as high as 50Kg/m3, which enables XPS to
bear higher Compression Strength.
The existence of CO2 presents higher System Pressure requirement to the extruder. Due to boiling point
of CO2 is as low as - 78.4 degree, the Extruding System Pressure must be kept around 25Mpa to maintain
its liquid state, which means Mould can not be opened largely. This also determines that thickness greater
than 50mm at 700Kpa is difficult to produce.
Technical Parameters of Ourgreen 700Kpa Extruded Polystyrene Foam Board
Item |
Unit |
Index |
Standard |
|
Apparent Density |
Kg/M3 |
43 - 53 |
GB/T6343 - 1995 |
|
Thermal Conductivity |
10℃ 25℃ |
W/(m∙k) |
≦ 0.035 ≦ 0.038 |
GB/T 10294 - 2008 |
Shear Strength |
Kpa |
≧ 300 |
GB/T10007 - 2008 |
|
Compression Strength |
Kpa |
≧ 700 |
GB/T 8813 - 2008 |
|
Elasticity Modulus |
Mpa |
38 - 42 |
GB/T 8813 - 2008 |
|
Closed-cell Rate |
% |
≧ 95 |
GB/T10799 - 2008 |
|
Dimensional Stability |
% |
≦5 |
GB/T8811 - 2008 |
|
Fire Behaviour |
C |
GB 8624 - 2008 |
Ourgreen 700Kpa, Extruded Polystyrene Foam Board Physical Parameters:
Items |
Value |
Conditions |
Compression Strength |
700 Kpa |
Tested at 10% deflection |
Elasticity Modulus |
40 Mpa |
|
Thermal Conductivity |
0.035 W/(m.k) |
At 25 ℃ |
Water Absorption |
≦ 1.0% |
V/V |
Water Vapor Permeability |
≦ 3.0 ng/(m.s.Pa) |
23℃ ±1℃ RH 50%±5% |
Working Temperature |
-50℃ to + 75 ℃ |
|
Dimensional Stability |
≦ 1.5% |
70 ± 2 ℃ 48h, 90%RH |
Creep |
≦ 5% |
80 ± 2℃ 48h, 20Kpa |
Fire Resistance |
C |
Nanjing Ourgreen 700Kpa Extruded Polystyrene Foam Board Packing Details:
Thickness (mm) |
Width (mm) |
Length (mm) |
Pcs/Pack |
M2/Pack |
50 |
615 |
1450 |
8 |
6.96 |