About Fluoroplastic

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About Fluoroplastic

Fluoroplastics are the generic term for a plastic raw materials that contains fluorine atoms.
It comes in nine different products, including mainstay forms like polytetrafluoroethylene (PTFE) and perfluoroalkoxy alkane (PFA). It is a plastic as well as having superb properties of heat resistance, smoothness (slipperiness), non-stick, chemical resistance, low friction and excellent electrical insulation (non-conductance).

Fluorite, raw material of fluorocarbon polymersFluorite, raw material of fluorocarbon polymers

These properties are put to good use use across a wide range of industries, such as transport applications and product applications like food processing, chemicals, semiconductors, liquid crystals, scientific equipment, aircraft and aerospace and, as such, fluoroplastics are a key component to modern industries.

What is Teflon™?

Teflon™ is the Registered trademark name for fluoroplastics made by The Chemours Company.
Back in 1938, at DuPont USA, Dr. Roy Plunkett and his team discovered Teflon™.

Dr. Plunkett was researching a new refrigerant, and, as such, had stored some tetrafluoroethylene (TFE) gas in an experimental pressurized container. And, one day, when he opened the lid of the container, no gas came out; so, he cut the container in half to examine things more closely, and found that the interior walls were covered in a white powder - he had discovered PTFE.
The experiment notebook used by Dr. Plunkett then is preserved to this very day at DuPont.

During the Second World War, PTFE was used for military equipment, but in 1945 DuPont registered PTFE with the trade name Teflon™ and in 1946 production and marketing of Teflon™ goods for consumer usage began.
With this the usage of Teflon™ in many industries became a possibility.
In 2015, The Chemours Company (Chemours) spun-off from DuPont and itslaunch as an independent, publicly traded corporation.
Note that in 2015 control of the Teflon™ trademark was transferred from DuPont to Chemours™.
Chukoh Chemical Industries Ltd. has concluded a license agreement of Teflon™ trademark with them Chemours for a fluoroplastic adhesive tapes since July, 2017.

trademark

Teflon™ is a trademark of The Chemours Company FC, LLC used under license by Chukoh Chemical industries,LTD.

The History of Fluororesins

Year Manufacturing Company Events
1937 L.G.Farben Discovers PCTFE
1938 DuPont Discovers PTFE
1940 DuPont Industrializes PTFE
1948 DuPont Discovers PVDF
1950 DuPont Starts serious production of PVDF
1954 Daikin Industries, Ltd. Industrializes PCTFE
1955 Daikin Industries, Ltd. Industrializes PTFE
1957 3M Company Acquires PCTFE manufacturing right
1959 DuPont-Nittou Chemical Industries,Ltd. Starts manufacturing PTFE
1962 Daikin Industries, Ltd. Industrializes FEP
1965 Penwalt Starts manufacturing PVDF
1970 KUREHA CORPORATION Industrializes PVDF
1972 DuPont Industrializes ETFE
DuPont Industrializes PFA
Asahi Glass Co.,Ltd. Industrializes ETFE
1976 Du Pont-Mitsui Fluorochemicals Company, Ltd. Starts production of PFA
1982 Daikin Industries, Ltd. Industrializes PFA
1983 Asahi Glass Co.,Ltd. Starts production of PTFE
1986 Du Pont-Mitsui Fluorochemicals Company, Ltd. Starts production of FEP
1987 Asahi Glass Co.,Ltd. Industrializes PFA
1988 - Starts serious production of soft polyfluorocarbon
1989 Asahi Glass Co.,Ltd. Expands production of weather-resistant polyfluorocarbon paints
1994 Du Pont-Mitsui Fluorochemicals Company, Ltd.
Daikin Industries, Ltd.
Expands production of modified PTFE
1996 Du Pont-Mitsui Fluorochemicals Company, Ltd. Starts serious production of new PFA for semiconductor market
2004 Asahi Glass Co.,Ltd. Succeeds in developing recycle technology for polyfluorocarbons
2006 KUREHA CORPORATION Expands production of PVDF resin

PTFE Properties

The molecular structure of PTFE provides this resin with various properties.

  Compositional formula Steric structure
PE PE Planar zigzag structure
PTFE PE Helical structure

Property 1Has heat resistance, flame resistance (resistance to oxidation) and weather resistance (resistance to ultraviolet)

● Reason: Bonding energy of C-F bond is high

  Bond energy [kJ/mo l]
C-H Bond (For CH₄) 412 (CH₄)
C-F Bond (For CF₄) 484 (CF₄)

Property 2 Has non-adhesive (nonstick), water repelling and oil repelling characteristics

● Reason: Intermolecular attractive force is small and surface free energy (surface tension) is low

Type of substance Angle of contact with water [Angle] Adhesive energy [dyn/cm]
PTFE 114 43.1
Silicone 90 ~ 110 47.8 ~ 72.7
PE 88 75.2

Property 3 Has chemical resistance

● Reason: C-C chain is surrounded by compactly arranged fluorine atoms (F)

Property 4 Low refractive index and low dielectric constant

● Reason: Polarizability of C-F bond is limited

[Remarks]
▪ C-F: Carbon-Fluorine bond
▪ CC: Carbon-Carbon bond
▪ Polarizability: The ease of movement of electrons when in an electric field
[Reference]
▪ JFIA [Fluorine resin Handbook]

Inquiries related to products should be made to the following

Since establishment in 1963, Chukoh Chemical Industries, LTD. has worked extensively in the field of R&D, focusing on fluoroplastics with characteristics unlike any others.
The company’s diverse range of products ranges from roof coatings, fabrics, adhesive tapes, substrates and molded articles. Please feel free to inquire about products and processing techniques.

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