Materials for the challenges of automotive applications
Automotive applications require relatively high chemical resistance, reliable service at low and high temperatures, and good wear resistance, which can be well satisfied by fluoropolymers.
The current megatrends of electric mobility, new ecology, and digitalization have brought new challenges and opportunities to fluoropolymers. The biggest feature of the automotive industry in recent years is that it is facing increasingly stringent exhaust emission standards, the size of the engine continues to shrink, while the performance continues to improve, the car is getting lighter and the production cost is getting lower and lower. Fluoropolymers can withstand high and low temperatures in the machine room, corrosive liquids and fuels, moisture resistance, vibration resistance and high pressure. Therefore, they are also commonly used to produce fuels, sliding elements, cable sheaths and sensors.
Fluoropolymers for Automotive Solutions
| Materials/Type | Related Characteristics | Solutions |
|---|
| ETFE | - Heat-resistance
- Insulation
| - Used for insulation and jackets for automotive wiring
- Can withstand operating temperatures up to 200°C in a short period of time
- Can withstand repeated mechanical stress at 150°C
|
| ETFE extruded tubing | - Chemical resistance
- Mechanical strength
- Resistance to permeation of hydrocarbons
| - Used as automotive tubing
|
| PCTFE film | - Chemical resistance
- Hydrophobicity
| - Used to encapsulate phosphor coatings in electroluminescent (EL) lamps for automotive
- Acts as a water vapor barrier, protecting phosphor chemicals that are sensitive to moisture
|
| ECTFE | - Heat-resistance
- Chemical resistance
| - Used for jackets of cables inside fuel tanks for level sensors, for hookup wires, and in heating cables for car seats
- Chemically foamed ECTFE is used in cable constructions
|
| THV fluorothermoplastics | - Highly flexible
- Chemical resistance
- Barrier properties
| - Used as a permeation barrier in various types of flexible hose in automotive applications
- Used as liners and tubing that made from electrostatic dissipative grade of THV
|
| FKM | - Superior resistance to permeation
- Chemical resistance
| - Used in automotive hoses for gasoline/alcohol mixtures and "sour" gasoline (containing peroxides)
|
| PVDF | - Chemical resistance
- Thermal stability
| - Applied to rechargeable batteries in electric vehicles as a cathode and anode binder or as a separator coating to extend the service life of rechargeable batteries
|
| Fluorosilicone elastomers | - Wide hardness range
- Wide operating service temperature range
| - Used for service that contact with aircraft fuels, lubricants, hydraulic fluids, and solvents
- Used as fuel injector O-rings, fuel line pulsator seals, and fuel line quick-connect seals; gas cap washers; vapor recovery system seals; electrical connector inserts; exhaust gas recirculating diaphragms; fuel tank access gaskets; and engine cover and oil pan gaskets
|
| Perfluorosulfonic acid resin | - Good chemical stability
- Good thermal stability
- Voltage drop
- High conductivity
- High mechanical strength
| - Can be used under harsh conditions such as strong acid, strong alkali, strong oxidant medium and high temperature
- Solid electrolytes in proton exchange membrane (PEM) fuel cells
|
| Fluoropolymer coating | - Anticorrosion
- Anti-smudge
- Smoothness
- Durability
| - Fluoropolymer coating with excellent durability can be used in electronic systems of automotive industry to increase of service life
|
The typical markets and industries for fluoropolymer applications are very wide, including medical, aerospace, energy, automotive, fluid management, electrical, chemical industry, food & drink, building & construction, etc. Click here or email us for more details.
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