This material is backed with 0.15mm thick Webril? Polypropylene non-woven fabric.

The apparent porosity of this material should be compared with the un-backed material of the same pore size.

The thickness shown includes the backing.

订货号	包装规格
Sizes
984-149-16	200mm x 310mm

半岛bd体育手机客户端 参数

Description[描述]	Porous Membrane
Pore Size[孔径]	5μm
Porosity[孔隙度]	35%
Thickness[厚度]	0.175mm
Mechanical Properties(机械性能)
Coefficient of friction	0.05 - 0.20
Elongation at break ( % )	400.0
Hardness - Rockwell	D50-55-Shore
Izod impact strength ( J m?? )	160.0
Poisson's ratio	0.460
Tensile modulus ( GPa )	0.30 - 0.80
Tensile strength ( MPa )	10.00 - 40.00
Chemical Resistance(耐化学性)
Acids - concentrated	Good
Acids - dilute	Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good
Halogens	Good
Ketones	Good
Physical Properties(物理性质)
Density ( g cm?? )	2.200
Flammability	V-0
Limiting oxygen index ( % )	95
Radiation resistance	Poor
Refractive index	1.380
Resistance to Ultra-violet	Excellent
Water absorption - over 24 hours ( % )	0.010
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? )	100.000 - 160.000
Heat-deflection temperature - 0.45MPa ( C )	120
Heat-deflection temperature - 1.8MPa ( C )	54.0
Lower working temperature ( C )	-260
Specific heat ( J K?? kg?? )	1000.0
Thermal conductivity ( W m?? K?? )	0.25 @23℃
Upper working temperature ( C )	180 - 260
Electrical Properties(电气特性)
Dielectric constant @1MHz	2 - 2
Dielectric strength ( kV mm?? )	50.0 - 170.0
Dissipation factor @ 1MHz	0.0003 - 0.0007
Surface resistivity ( Ohm/sq )	10??
Volume resistivity ( Ohmcm )	10??-10??

其他参数

公差

直径	<100mm	±1mm
	≥100mm	+2% / -1%
厚度		±20%
长度 1	<100mm	±1mm
	≥100mm	+2% / -1%
长度 2	<100mm	±1mm
	≥100mm	+2% / -1%