Page 161 - Handbook of Adhesion Promoters

154 Selection of Adhesion Promoters for Different

8.12 POLYESTER

Many commercial adhesion promoters can be used in polyesters, including Amplify,
Chartwell, Chartsil, Dow Corning, Geniosil, Dynasylan, Silquest, Uniplex, and Xibond.
There are too many products to be listed by their grade names here but a full account of
these additives can be found in Databook of Adhesion Promoters which also contains
additional information on the use of these additives.
The adhesion between ethylene methyl acrylic rubber and polyester fabric treated
1
with double dip system was evaluated. The treatment with a resorcinol-formaldehyde-
latex solution (compatibility with AEM rubber) and chloroprene rubber latex (crosslink-
ing reaction possible with amine crosslinking agent) had the highest adhesion for rubber-
1
1
polyester fabric composites. Increase of adhesion by 41.7% was achieved.
The acrylic based primer was applied to the galvanized steel substrate to increase
2
adhesion of multilayer polyester coating. It increased wet adhesion and corrosion resis-
2
tance.
The effect of various alumina surface treatments, including degreasing, etching,
3
plasma, grit-blasting, and silanization, was evaluated. All of them improved adhesion
3
because they have removed contaminations from the surface. The silane treatment had
the greatest effect on the adhesive strength because of adhesion promotion, better wetting
of the more planar silane-treated surface by the thermoplastic polyester and a larger sur-
3
face area of defect-free alumina/polyester interphase.
REFERENCES
1 Son, W-J; Bae, D-C; Park, D-J; Kim, W, Compos. Interfaces, 20, 1, 73-91, 2013.
2 Adhami, S; Abel, M-L; Lowe, C; Watts, JF, Surf. Interface Anal., 44, 1054-8, 2012.
3 Lausund, KB; Johnsen, BB; Rahbek, DB; Hansen, FK, Int. J. Adh. Adh., 63, 34-45, 2015.