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PTFE Dispersion Emulsion

PTFE Dispersion Emulsion

PTFE Dispersion Emulsion Teflon properties and uses: Emulsion polymerization of polytetrafluoroethylene (PTFE), also known as dispersion polymerization, is an aqueous dispersion of PTFE. It has a solid content of about 60% and can be used for impregnation of fabrics and porous metals, forming...

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PTFE Dispersion Emulsion


Teflon properties and uses:

Emulsion polymerization of polytetrafluoroethylene (PTFE), also known as dispersion polymerization, is an aqueous dispersion of PTFE. It has a solid content of about 60% and can be used for impregnation of fabrics and porous metals, forming films, metal coatings and other substrates. Coating, etc.


The universal dispersion is stabilized by a non-ionic sizing which consists of negatively charged colloidal particles suspended in water. The colloidal particles are spherical and have a flat particle size of 0.15 to 0.17 um. The viscosity at 20 ° C is about 5 X10-3 Pa•s, and the pH is about 10 or so. Its viscosity can be adjusted by adding an sizing agent or distilled water. To lower the pH, a little organic acid such as acetic acid can be added. However, be careful when adding acid. Once the high concentration of ions is reached, the dispersion will condense. The PTFE aqueous dispersion has a long shelf life at 20 °C, but it will precipitate on the bottom of the vessel and should be stirred slowly after one week of standing.


Technical Specifications:

Item

Unit

Nominal Value

Appearance

--

White or yellowish liquid

PTFE   content

%

58~62

Surfactant

%

4.0~7.0

pH

--

8~10

Viscosity

x 10.3Pa.S

20~40


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