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The effect of fluoropolymer architecture on the exterior weathering of coatings
Author(s) -
Wood Kurt
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200209)187:1<469::aid-masy469>3.0.co;2-m
Subject(s) - fluoropolymer , materials science , polyurethane , polymer science , weathering , polyester , fluoride , copolymer , composite material , chemical resistance , ether , polymer , polymer chemistry , organic chemistry , chemistry , inorganic chemistry , geomorphology , geology
Fluoropolymers of several different types (poly(vinylidene fluoride), alternating copolymers, perfluorinated ether polyols) are commercially available as coatings resins. While all these resins share certain chemical properties (e.g. hydrophobicity), the performance in the area of weathering depends crucially on details of the molecular structure. A number of recent studies have examined the mechanisms by which different fluorinated coatings weather, and have highlighted some ways in which the molecular structure affords photochemical protection that is not possible with conventional polyester or polyurethane coatings. The most weatherable fluoropolymer systems not only meet the most stringent worldwide industry specifications for high performance architectural and protective topcoats, but have demonstrated over thirty years chalk and fade resistance in south‐facing Florida exposures.