Carbon paper permeability testerIt is a professional equipment used to evaluate the air permeability of carbon paper materials. Its core principle is to measure the flow rate of gas through carbon paper under specific pressure differentials or calculate the air flow resistance, providing key performance data for fields such as fuel cells and materials science.

1、 Testing principle

The carbon paper permeability tester is mainly based on two testing methods:

1. Constant pressure difference methodBy adjusting to create a constant pressure difference on both sides of the sample, measure the airflow rate passing vertically through a given area of the sample for a certain period of time, and then calculate parameters such as air permeability.

2. Fixed flow methodStabilize the airflow passing vertically through the sample at a constant flow rate, measure the pressure difference formed on both sides of the sample under this condition, and calculate parameters such as air flow resistance based on this.

2、 Technical parameters

crowdsourced testingTQD-06 Carbon Paper Characteristics Vertical and Plane Breathability TesterApplicable to GB/T 20042.7-2024 "Proton Exchange Membrane Fuel Cells Part 7: Test Methods for Charcoal Paper Characteristics" for vertical and planar permeability testing. By measuring the permeability of the sample, the product can meet the needs of practical applications.

Vertical pressure difference measurement range:0-1000 Pa (other ranges can be customized)

Vertical flow measurement range:0-20L/min (other ranges can be customized)

Measurement range of plane pressure difference:0-50Kpa (other ranges can be customized)

Plane flow measurement range:0-2L/min (other ranges can be customized)

Sample size:Vertical area:>2cm ²

Plane direction:Inner circle radius 4mm, outer circle radius 22.5mm

3、 Application Fields

Proton exchange membrane fuel cellAs the core material of gas diffusion layer (GDL), the permeability of carbon paper directly affects the power density, energy conversion efficiency, and lifespan of fuel cells.

4、 Product Features

The carbon paper permeability tester usually has the following characteristics:

1. High precision and resolutionEquipped with high-precision electronic airflow and air pressure sensors to ensure the accuracy of test data.

2. automated operationFully automated testing process, automatically measuring and calculating results to improve testing efficiency.

3. User friendly interfaceThe host is equipped with a color touch screen, which is easy and intuitive to operate.

4. Data output and storageBuilt in micro printer, capable of real-time printing of test reports; Some devices support data recording and processing functions, which facilitate subsequent analysis.

5. customized serviceParameters such as testing range and testing area can be customized according to different sample requirements.

6. meet the standardImplement GB/T 20042.7-2024 "Proton Exchange Membrane Fuel Cells Part 7: Test Methods for Charcoal Paper Characteristics".