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Surface Coatings International

, Volume 81, Issue 12, pp 604–609 | Cite as

The use of fluoropolymers for non-stick cooking utensils

  • P Thomas
Focus

Conclusions

The formulation of non-stick coatings for cooking utensils is probably more complicated than had been thought. It has been shown that the addition of copolymers to PTFE greatly improves the properties of the coating.

The problem of having a ‘non-stick’ coating ‘sticking’ to a metal substrate is partly solved by the fluoropolymer stratifying to the coating surface. FEP is the copolymer of choice for adhesion of primers to very smooth surfaces where there is lack of mechanical adhesion.

The abrasion resistance and barrier properties of the coating are enhanced by the addition of PFA due to the better mechanical properties and lower crystallinity of this copolymer.

In the end, non-stick coatings are a complex blend of several fluoropolymers (homopolymer and copolymers), bonding resins and pigments. Fluoropolymers have not been developed essentially for non-stick cooking utensils technology, but today the consumer benefits from the most advanced non-stick technology due to the requirement of industry to search for increasingly improved performance with existing materials.

Keywords

PTFE Abrasion Resistance Hexafluoropropylene Polyphenylenesulfide Cooking Utensil 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of Abbreviations

PTFE

Polytetrafluoroethylene, homopolymer of tetrafluoroethylene

FEP

Fluoroethylenepropylene, a copolymer of tetrafluoroethylene and hexafluoropropylene

PFA

Perfluoroalkoxy, a copolymer of tetrafluoroethylene and perfluoropropylvinylether

HFP

Hexafluoropropylene CF2=CFCF3

PPVE

Perfluoropropylvinylether CF2=CFOC3 F7

FDA

Food and Drug Administration (USA)

BGA

Bundesgesundheitamtes (Germany)

HFPO

Hexafluoropropyleneoxide CF2CFOCF3

Primer

First coatings layer applied on the substrate to promote adhesion and create the link with top layers

Finishing Coat

Coatings layer applied on top of the primer

PAI

Polyamideimide

PPS

Polyphenylenesulfide

Ra

Mean roughness average

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Copyright information

© OCCA 1998

Authors and Affiliations

  • P Thomas
    • 1
  1. 1.DuPont, R & D LaboratoryMechelenBelgium

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