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P84 needled felt
P84 needled felt

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P84 (PI-polyimide) is a filter material with the properties of flame resistance, high temperature resistance

        P84 (PI-polyimide) is a filter material with the properties of flame resistance, high temperature resistance. Polyimide will keep a good performance when the temperatures up to 240 degree centigrade, instant can up to 260 degree to 300 degree. Polyimide is leaf-shaped structure with a larger filter surface, and always embedded in the surface of other needle felt with different material to improve the filter efficiency. For the properties of high Temperature resistant filter material, good chemical resistance, good air permeability, high filtration efficiency, mostly applied in Cement kiln, Asphalt, Waster Incinerator, coal boilers, etc.

 

The technical data of P84 needled felt  

Article Name

P84 needled felt

Ingredients

Fiber

100%P84

Scrim

100%P84

Weight

g/m2

500

Thickness

mm

2.2

Density

g/m³

0.23

Permeability

L/dm2.min

200

Tensile breaking

 strength(N/5cm)

Warp

≥600

Weft

≥600

Elongation @200N/5cm

Warp

<5

Weft

<5

Maximum shrink

of 90 mins

Temperature(°C)

260

%

≤1

Service Temperature(°C)

Continuous

240

Instant

260

Finishing

Heat setting, Singeing, calendaring

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