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Hydrogen Fuel Cell Sealing Ring and flat gasket unsed in new energay industry
Description:
Compared with traditional fuel vehicles, new energy vehicles powered by hydrogen fuel cells have obvious advantages in terms of energy sources and exhaust emissions.
However, problems such as safety and hydrogen fuel storage technology still plague the development of hydrogen fuel cells.
The importance of sealing gaskets for hydrogen fuel cells to the storage and safety of hydrogen fuel is obvious.
Due to the special use environment of sealing gaskets, rubber materials are required to meet high temperature resistance (≥200°C), gas resistance (hydrogen, etc.), medium resistance (methanol, triethylene glycol and phosphoric acid) and excellent compression set performance.
In addition, the requirements for its service life and reliability are also high.
It is believed that the higher the fluorine content of fluororubber material, the better its oil resistance and other properties.
In different environments, the performance requirements of fluororubber are also different.In hydrogen fuel cells, such as phosphoric acid fuel cells, phosphoric acid is used as electrolyte.
The reaction temperature is high and the environment is complex and harsh.
When contacting with the reaction medium, more attention is paid to the comprehensive performance of fluororubber materials.
Finally, the rubber sealing material can achieve excellent effects of high temperature resistance (≥200℃), gas resistance (hydrogen, etc.), medium resistance (methanol, triethylene glycol and phosphoric acid) and excellent compression permanent deformation performance, meeting the requirements of hydrogen fuel cell sealing ring.
Our company provides hydrogen fuel cells, methanol-to-hydrogen high-temperature fuel cells and other fuel cells to provide supporting materials and sealing component solutions.
The material can be used for a long time at a temperature below 250°C. It has excellent resistance to methanol, water and phosphoric acid,
and its resistance to hydrogen and carbon dioxide is much better than that of silicone rubber.
Data sheet
PROPERTY TEST REPORT | Report No: | S209 | ||||||
Customer: | / | Test Date | 7.2 | |||||
Product: | QFFB-H2701 | Material: | FKM | |||||
Expiration date : | 180 days | Formulation No: | ||||||
Our Ref: | 20070203Y | Colour: | Black | |||||
Press Cure | 170℃*10min | Post Cure: | 230℃*24h | |||||
Room Temperature/ | 23℃ | Humidity: | 55% | |||||
Test Item | Test Result | Test Method | ||||||
Curing items : Test temperature :177℃ Test time:600 Sec | ||||||||
(TS2)Scorch time,Ts2,sec | 1:02 | ASTM D1646 | ||||||
(TC10)Scorch to10% cure,t'10,sec | 0:54 | ASTM D1646 | ||||||
(TC90)Time to 90%cure,t'90,sec | 4:32 | ASTM D1646 | ||||||
(ML)Minimum torque,ML,lbf-in | 2.39 | ASTM D1646 | ||||||
(MH)Minimum torque,MH,dN-m | 16.30 | ASTM D1646 | ||||||
Typical Properties Test: | ||||||||
Hardness Shore A | 73 | ASTM D2240 | ||||||
Tensile strength(MPa) | 13.8 | ASTM D412,Die C | ||||||
Elongation(%) | 241 | ASTM D412,Die C | ||||||
Remarks: | This is to certify that the above designated material has been tested and did comply with our Q.C.specifications. |
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