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Title

INVESTIGATING THE ROLE OF PROCESS PARAMETERS IN HYDROLYSIS OF AN AMINOSILANE ADHESION PROMOTER ADDITIVE IN AN EPOXY-SILICONE CLEAR COAT

Pages

 Start Page 207 | End Page 216

Abstract

 In this study, the effect of an ADHESION promoter was investigated on the ADHESION of an EPOXY SILICONE coating. N-2 amino ethyl- 3 amino propyl-3 methoxy silane was used as an ADHESION promoter and was incorporated into the epoxy clear coat. The effect of the additive, using a sol-gel process on the final properties of the coating was investigated by ADHESION, hardness (Vickers) and tensile measurements and DMTA analysis. The results indicated an increase in the coating ADHESION in the presence of amino silane as compared to that of EPOXY SILICONE resin. This is due to the formation of chemical bridges as a result of covalent bonding between silanols and hydroxyls at the surface. On the other hand, the formation of a three-dimensional siloxane network in the condensation process of silanols resulted in a higher crosslink density of the system and a denser network. The results showed that the use of amino silane compounds in EPOXY SILICONE coatings can be an effective way to increase the ADHESION.

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