Organometallic Adhesion Promoters

Although used primarily as adhesion promoters, certain organometallic esters (titanates, zirconates, aluminates, zircoalmninates) and in some cases even silanes are used at catal)rtic levels in filled or reinforced epoxy resins to modify viscosity and achieve novel compositions. 

Use of organometallic coupling agents (additives) as process aids, adhesion promoters, and physical property enhancers in a wide va-... 

Sugerman, Gerald, and Monte, Salvatore J., The Usage of Organometallic Reagents As Catalysts And Adhesion Promoters In Reinforced Composites, ... 

Remove the substance by cleaning or via a liquid that dissolves it Crosslink surface, diffusion barrier Investigate penetration of water in the liquid Introduce adhesion promoters for stronger adhesion forces (organosilanes, organometallics)... 

In some examples it is not necessary to prepare the organometallic-coupling agent R2MX2 beforehand. Thus coating glass fibres with a heptane or alcohol solution of titanium alkoxide promotes adhesion between the fibre and polymer, e.g., acrylic, polyolefins, polyester, polyamide and other thermoplastic resins. 

Atomic spectroscopy (including atomic absorption spectrometry, atomic emission spectrometry, and atomic fluorescence spectrometry) is of use across the span of reactive adhesive technologies. For example, the cure of anaerobic adhesives on non-reactive surfaces is usually assisted by the use of an active metal-based primer. Similarly, the cross-linking of silicone adhesives is promoted by the use of organometallic salts of cobalt, tin, iron, lead, and platinum. In the case of polyurethane adhesives, the key condensation reactions are catalyzed by tin salts (e.g., dibutyl tin dilaurate and stannous octoate). 

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