PTFE Sheet

1-10mm Thick PTFE Sheet-Paidu Group

Item No.: SH-03
PTFE, also known as Polytetrafluoroethylene, is a synthetic fluoropolymer that is widely recognized for its exceptional properties. It is a non-reactive and thermally stable material, making it highly resistant to chemicals, heat, and electricity.
$11.20
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Description Review
Description

Chemical Properties of Polytetrafluoroethylene (PTFE):

Insulation: PTFE is not affected by environmental conditions or frequency. It has a volume resistivity of up to 10^18 ohm·cm, low dielectric loss, and high breakdown voltage.

High and Low Temperature Resistance: PTFE exhibits minimal changes in its properties with temperature variations. It can be used within a wide temperature range of -190 to 260°C.

Self-lubrication: PTFE has the lowest friction coefficient among plastics, making it an ideal material for oil-free lubrication.

Non-stick Surface: Known as the material with the lowest surface energy, PTFE prevents solid materials from adhering to its surface.

Resistance to Atmospheric Aging and Radiation: PTFE maintains its surface and performance even after long-term exposure to atmospheric conditions. It also has low permeability and resistance to radiation.

Non-combustibility: PTFE has an oxygen index below 90, making it non-combustible.

Properties:

Non-stickiness: PTFE has an extremely low coefficient of friction, only 1/5 of that of polyethylene. This is a significant characteristic of fluorocarbon surfaces. Additionally, the low intermolecular forces between fluorine-carbon chains contribute to its non-stick properties.

Mechanical Performance: Tensile strength (σb): 20.7-27.5 MPa Elongation at break (δ5): 250-350% Impact toughness (αk): With notch: ≥16.1 J/cm2; Without notch: >98.1 J/cm2 Tensile modulus (MPa): ≥3.92 Hardness: 50-65D

Combustibility: PTFE maintains excellent mechanical properties within a wide temperature range of -196 to 260°C. One of the characteristics of fully fluorinated carbon polymers is that they remain non-brittle at low temperatures.

Electrical Performance: PTFE has low dielectric constant and dielectric loss over a wide frequency range. It also exhibits high breakdown voltage, volume resistivity, and arc resistance.

Radiation Resistance: PTFE has poor radiation resistance (up to 10^4 rad), leading to degradation and a significant decrease in both electrical and mechanical properties.

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