Reducing the environmental impact
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A new branched structure has made it possible to develop fluorosurfactants with significantly improved environmental properties, on the basis of building blocks with very short perfluoralkyl chains (C2, C3). In film formation they allow completely wetted, defect-free surfaces but without foam creation or influencing other surface properties. As an additive in adhesives, they can bring about a major improvement in the wetting of hydrophobic and textured surfaces, among other things.
A new concept of branched short chain fluorosurfactants had been tested and presented already for typical water and solvent based coatings applications.  Branched short chain fluorosurfactants exhibit a remarkable combination of low static and high dynamic surface tension. The ecotoxicological properties of the new developed fluorosurfactants could be improved significantly in contrast to criticized long chain (C8) fluorosurfactants.
Below the structural-property relationship of various surfactants are...