Nepem Proton Exchange Membrane for Hydrogen Fuel Cell

• Customized: Yes
• Transport Package: Single
• Specification: 1 square meters
• Trademark: Thinkru
• Origin: China
• Model NO.: T-N-301 series

Product Description

EPTFE (expanded polytetrafluoroethylene) microporous reinforcing material was added to the traditional proton exchange membrane,
which has the characteristics of high strength, high conductivity, and low ion permeability.
 

Properties of NEPEM®PFSAmembranes.

1. Thickness and Basis Weight Properties

MembraneType	Thickness(microns)	Weight(g/m2)
T-N-3010	10	19.6
T-N-3015	15	29.5
T-N-211	25	50
T-N-212	51	102.0

2. Physical and Other Properties

PhysicalandOther Properties	IndexParameters					TestMethod
	T-N-3010		T-N-3015		T-N-211/212
TensileTest (23°C,50%RH)	MD	TD	MD	TD	tensile strength
TensileStrength(Max., MPa)	45	38	40	35	30	ASTMD882
TensileModulu(MPa)	480	400	400	350	400	ASTMD882
Elongationatbreak(%)	175	150	190	170	150/180	ASTMD882
SpecificGravity	1.97		1.97		1.98	-

Other Properties

Conductivity3(S/cm	0.095	0.134	0.100	GB/T 20042.3-200 9
HydrogenCrossover 3 (ml/min·cm2)	<0.010	<0.010	< 0.015/0.010	GB/T 20042.3-200 9
HydrogenCrossover Current 4,(mA/cm2)	<2.0	<2.0	/	KeRun

3. Hydrolytic Properties

HydrolyticProperties	IndexParameters					TestMethod
WaterContent 5(%)	10.0±3.0		10.0±3.0		5.0±3.0	ASTMD570
WaterUptake 6(%)	50.0±5.0		50.0±5.0		50.0±5.0	ASTMD570
ThicknessChange,%increase
from 50%RH,23°Ctowater soaked,23°C	10		15		10	ASTMD756
from50%RH,23°Ctowater soaked,100°C	30		40		30	ASTMD756
Linearexpansion,%increase
	MD	TD	MD	TD	/

from50%RH,23°Ctowater soaked,23°C	3	4	3	5	4	ASTMD75
from50%RH,23°Ctowater soaked,100°C	5	2	10	5	20	ASTMD756

1, Measurements taken with membrane conditioned to 23°C,50%RH.

2, Conductivity measurements at 23°C,100%RH.

3, Hydrogen crossover measured at 23°C,100%RH.

4, Hydrogen crossover Current measured in MEA on H2,80°C, fully humidified gases.

5, the Water content of the membrane conditioned to 23°C and 50%RH(dry weight basis).

6, Water uptake from dry membrane to conditioned in water at 100°C for 1 hour (dry weight basis)