PTFE
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Price
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Strength
Low friction coefficient, excellent electrical insulation properties, and resistance to weathering and UV radiation.
Weakness
Limited load-bearing capabilities and can be prone to creep under sustained loads.
Common Application
Non-stick coatings for cookware, electrical insulation, gaskets, seals, bearings, and medical implants.
| Property | Metric | English |
|---|---|---|
| Density | 2.1 - 2.3 g/cm³ | 131 - 144 lb/ft³ |
| Shore Hardness D | 55-65 | 55-65 |
| Min Temp. Air | -200°C | -328°F |
| Max Temp. Air | 260~300°C | 500~572°F |
| Flammabilitiy, UL94 | V-O | V-O |
| Elongation at Break | 150-350% | 150-350% |
*Please Note: Material properties are for reference only and may vary by brand.
How Additives Improve PTFE Properties?
In PTFE moulding, Fillers are added to PTFE to modify its properties according to specific application requirements.
- Adding glass fibers to PTFE can improve its mechanical strength and wear resistance.
- Adding carbon fibers can enhance conductivity and provide anti-static properties.
- Bronze or graphite can improve thermal conductivity, enabling PTFE to withstand higher temperatures
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Is PTFE material recyclable?
Yes, PTFE material is recyclable, but the process is challenging due to its inert nature and high melting point. Full recycling of PTFE without compromising its properties remains a significant technical challenge in the industry.
Can PTFE be used in high-temperature applications?
Yes, PTFE can be used in high-temperature applications due to its exceptional thermal stability. It can withstand temperatures ranging from -200°C to 260°C (-328°F to 500°F) continuously and even higher temperatures for short durations without significant degradation.
Is PTFE material safe for food contact?
Yes, PTFE is considered safe for food contact. It is inert and non-toxic, meaning it does not react with food or release harmful chemicals when in contact with food. However, it's important to note that PTFE should not be heated above its recommended temperature range during food processing to avoid potential health risks associated with overheating.
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