Device and method for measuring nonlinear swelling of proton membrane
A measurement method and a technology of a measurement device are applied in the direction of a measurement device, a mechanical device, and a stable tension/pressure test material strength, etc., which can solve problems not involving the measurement of proton membrane swelling, achieve good environmental adaptability, reduce The effect of measurement error
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Embodiment 1
[0043] Such as Figure 1~3 As shown, a measurement device for nonlinear swelling of the proton membrane provided in this embodiment includes a coating ring 1, a fastening ring 2, a distance measuring probe 3 and a bracket 4, and the bracket 4 is arranged on the distance measuring probe 3, The coating ring 1 is arranged on the bracket 4, and the proton membrane 5 to be measured is sandwiched between the coating ring 1 and the fastening ring 2. The coating ring 1 is used to support the proton membrane 5 to be tested, and the fastening ring 2 is used to fix the For the proton membrane 5 to be tested, the ranging probe 3 is used to measure the membrane swelling displacement and force of the proton membrane 5 to be tested, and the bracket 4 is used for fixedly connecting the coating ring 1 and the ranging probe 3 . The bracket 4 includes a first bracket 401 and a second bracket 402, the first bracket 401 and the second bracket 402 are respectively connected and arranged on both sid...
Embodiment 2
[0055]Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.
[0056] A kind of measurement method for evaluating the nonlinear swelling of the proton membrane provided by this embodiment can measure the nonlinear swelling rate of the proton membrane, and can evaluate the nonlinear swelling of the proton membrane, and the nonlinear swelling is closer to the proton membrane in the fuel cell application The actual swelling mode and the measured data can provide support for the design of bipolar plates and gas diffusion layers. The method can be carried out in water or air.
[0057] This method uses a tool that can measure the nonlinear swelling of the proton membrane. The distance measuring probe 3 for displacement and stress and the support 4 for fixedly connecting the coating ring 1 and the distance measuring probe 3, the needle of the distance measuring probe 3 is arc-shaped to prevent damage to the proton membrane.
[0058] ...
Embodiment 3
[0069] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.
[0070] A method for measuring the nonlinear swelling of the proton membrane, comprising the steps of:
[0071] S1, test the tensile strength of No. 1 proton membrane (national standard), obtain the tensile displacement and force relationship curve, the force value used in the selected measurement is 0.92N, and the corresponding deformation value is 0.2mm at this time;
[0072] S2, drying the proton membrane to be tested in vacuum at 80 degrees Celsius for 12 hours;
[0073] S3, adjust the distance measuring probe so that the needle head is flush with the surface of the coating ring, and the displacement indication of the distance measuring probe is reset to zero. Then the dried proton membrane is covered on the surface of the coating ring. The proton should be fully stretched naturally to eliminate wrinkles. After coating, install a fastening ring on the outer ri...
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