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Silane Coupling Agents

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Coupling Agent

Definition: Silanes (compounds of silicon and hydrogen of the formula SinH2n+2) and other monomeric silicon compounds have the ability to bond inorganic materials such as glass, mineral fillers, metals and metallic oxides to organic resins. The adhesion mechanism is due to two groups in the silane structure. The Si(OR3) portion reacts with the inorganic reinforcement, while the organofunctional (vinyl-, amino-, epoxy-, etc.) group reacts with the resin. The coupling agent may be applied to the inorganic materials (e.g., glass fibers) as a pre-treatment and/or added to the resin. See also COUPLING AGENT.

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