11.5 Polyamine Curing Agents Meeting the Industry Need for Enhanced Productivity
(Room 237-239)
10 Apr 18
4:30 PM
-
5:00 PM
Tracks:
Session 11: Epoxy Coatings, Session 11: Waterbased Coatings
In the challenging world of industrial, protective and marine coatings, two component epoxy systems are established as the benchmark technologies due to the combined offerings of excellent corrosion protection while being compliant with regional VOC standards. Today, productivity has emerged as a major driver and innovation is focused on developing epoxy coatings which have greater application versatility while providing enhanced performance properties, such as dry speed, rapid recoat and through cure. For Marine and Protective, the need is for faster cure and blush resistant coatings when applied under adverse, low temperatures conditions. In the OEM sector, the wet-on wet application process means there is a requirement for epoxy systems to provide rapid overcoatability with polyureathane and/or polyaspartic top coats within minutes after initial application of the primer. In the OEM sector the drivers are to increase productivity with faster application of multiple layers coupled with lower bake temperatures which can provide energy savings.
This paper will focus on the performance attributes of a novel polycyclic- aliphatic amine and its use in the development of new epoxy curing agents designed for to provide added value in the above markets. The supporting data includes the functional properties; thermal analysis, Glass transition (Tg), IR cure profile, confirming the rapid through cure and cross-linking capabilities in epoxy systems. In addition a review of model coating formulations and their key performance attributes, including the rapid recoat times, improved intercoat adhesion, excellent corrosion protection properties will be discussed