Copper-binding adhesives

Hirayaina et al. [22] have shown that polyhydrogenmethylsiloxane can bind to aluminum, copper and steel surfaces via activation with a suitable platinum complex. The attached polymer promotes the adhesion of silicone materials whose cure involves SiH/SiVinyl hydrosilylation. Presumably, it would also be effective with other unsaturated organic polymer phases. 

Studies have shown that adhesion of metals to PTFE improved when it was irradiated by x-ray or electron beam prior to deposition. ] Evaporated nickel adhered better to the x-ray irradiated PTFE surface than the unaffected surface. The increased adhesion was attributed to the possible formation ofNi-C bonds to bind the nickel to the polymer chain. Another studyb24] reported enhanced adhesion of copper films on polytetrafluoroethylene that had been irradiated with a pulsed ultraviolet excimer laser prior to deposition. 

The manufacture of abrasives (sand paper), mainly in combination with formaldehyde, book binding and gummed tapes are the main markets today. Another still strong outlet for g. is as a binder in match heads. Laminating - adhesives and stabilizers in latex formulations are other uses as well as in copper plating and extraction, flotation aids in... 

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