Advertisements

Structurally modified, hydrophilic silica improves the anti-fouling properties of coatings based on cuprous oxide

Structurally modified, hydrophilic AEROSIL® improves the anti-fouling properties and product life of anti-fouling coatings. Customers use the product in formulations with cuprous oxide (Cu2O) to take advantage of the resulting synergies.

VP 4200 is a development product that, as an active extender with cuprous oxide, exhibits effective anti-fouling properties while lowering the amount of Cu2O needed in the coating formulation. In terms of product function, the structural modification process significantly increases bulk density, effectively reducing the thickening effect of AEROSIL® and making higher loading capacities possible. Not only does the high solids content help anchor the cuprous oxide — significant reinforcement and durability of the film also helps make the cuprous oxide available for longer periods of time. The product works in spray applications just as before.

When VP 4200 is added at concentrations exceeding 10 percent (relative to the total formulation), effective anti-fouling effects have been demonstrated at much lower concentrations of Cu2O (roughly 6 percent, also relative to the total formulation). In addition, a novel particle design based on hydrophobic, structurally modified VP 4200 is more effective in formulations than hydrophobically modified versions.

Structurally modified AEROSIL® grades were introduced over 10 years ago as a way of improving scratch resistance and mechanical durability of products in the coatings, adhesives, and sealants industries. The new developments are opening the door to novel applications that represent environmentally sustainable improvements to anti-fouling effects in maritime environments

Advertisements

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

SUBSCRIBE TO OUR NEWSLETTER

You have successfully subscribed to the newsletter

There was an error while trying to send your request. Please try again.

Paints and Coatings Expert will use the information you provide on this form to be in touch with you and to provide updates and marketing.
%d bloggers like this: