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Adhesion Promoters Give van der Waals a Boost

SpecialChem / Aug 1, 2013

It's vital that an adhesive completely wets out its substrates, creating a continuous film between the materials to be joined to get the best possible bond. But even with a perfect adhesive film hugging every microscopic ridge, sometimes the attractive force from dancing electrons in separate molecules alone still isn't enough. It's then that many adhesives have to supplement these van der Waals forces with permanent dipole-dipole intermolecular interactions and strong chemical covalent bonds. Adhesive suppliers must often then turn to adhesion promoters and coupling agents - and as June's Click'n'Vote poll showed, SpecialChem4Adhesives readers most commonly turn in one specific direction.

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