PTFE Needle Felt
You May Also Be Interested In:
ptfe needle felt
Polytetrafluoroethylen, PTFE in short, is commonly known as King of Plastic in China. It has macromolecular linear structure and almost no branch chain. The molecular chain is hard to destroy for the carbon atoms on the main chain are protected by the stable chemical C-F both sides of macromolecule. So the PTFE material has good heat resistance and anti-corrosion.
With the dipole moment of PTFE macromolecule closing to zero and basically no polar, it has good insulation property. PTFE macromolecule has low surface free energy, high non-adhesion and lowest friction coefficient. The melting point of the crystalline state for high molecular material is 327 centidegree, so the material can be used within the temperature range of -195 centidegree~+260 centidegree for a long time. Non-breaking or non-burning, PTFE has a LOI of 95.
Weight (g/ m2) :700
Air Permeabilty (L/dm2/min@200Pa) : 80~150
Minimum Breaking Strength:Warp>500, Weft>500
Normal Use Temperature:250 centidegree
Instant Use Temperature:300 centidegree
Shrinkage in dry heat(250 centidegree /2hrs) :Warp<=3, Weft<=3