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4.
Bio-Based Polyurethane Nanocomposite as Marine Antifouling Coatings
Fatthallah,N. A. 1; Sadek,E.M2.*;
Mansour, N. A.2; Ismail, E.A.2 and Motawie,
A.M.2
1 Petroleum Biotechnology Lab, Processes Development Department,
Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt.
2 Polymers Lab., Petrochemicals Department, Egyptian Petroleum
Research Institute, Nasr City, Cairo, Egypt.
* Corresponding author. E-mail:
elham_sadek@hotmail.com
Sorption of Chromate by Surfactant Modified Willhendersonite
Abstract:
Different types of prepared marine antifouling coating
samples based on polyurethane were studied. Antimony
trioxide nanoparticles and bacteria were used as coating
modifiers. Pure polyurethane, polyurethane/ antimony
trioxide nanocomposite, and polyurethane/ antimony trioxide/
bacteria nanocomposite films were prepared and tested
against fouling mussels. Copper coupons (as a type of the
tubular heat exchangers) were brushed with different
concentrations of the prepared coatings and inserted in jars
(as triplicates) containing natural sea water with living
fouling mussels for one week. Results assured that bio-based
polyurethane/ antimony trioxide nanocomposite (1.25ml
polyurethane; 0.001ml antimony trioxide nanoparticles; 0.5ml
bacterial broth medium) was potent against fouling mussels
after 24 hrs of exposure. The potent concentration of
bio-based polyurethane nanocomposite was also tested for its
safety against non-target sea organisms.
Key Words: Biofouling, antifouling coatings, antimony
trioxide nanoparticles, bio-based polyurethane,
nanocomposites.
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