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Biostability of water-borne adhesives

SpecialChem / Andy Extance – May 5, 2010

Increasing screen sizes are creates a larger electrostatic discharge problem when release liners are removed from adhesive films used in LCD manufacturing. Antistatic adhesives already exist, but their optical properties are not ideal for LCD screens. However a new class of additive is helping solve a number of display problems. Are your products under attack from micro-organisms? Among the many demands placed on adhesives, resistance to biological threats can be delivered by solvent-based or petrochemically-derived products. However as today's market moves towards greater sustainability, the natural, water-dispersed materials used make biostability harder to achieve. The majority of synthetic polymeric materials are relatively resistant to biological attack, although fungi, algae or bacteria can grow on them under the right conditions. Fungi tend to be the most common, feeding on non-polymeric components, like residual monomers, or by-products of environmental degradation and surface contaminants.

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