A preliminary study on the properties and fouling-release performance of siloxane–polyurethane coatings prepared from poly(dimethylsiloxane) (PDMS) macromers

doi:10.1080/08927014.2010.531272

Paper

A preliminary study on the properties and fouling-release performance of siloxane–polyurethane coatings prepared from poly(dimethylsiloxane) (PDMS) macromers

Published Nov 1, 2010 · Stacy A. Sommer, Abdullah Ekin, D. Webster

Biofouling

Q2 SJR score

176

Citations

2

Influential Citations

Full textSemantic Scholar

Abstract

Siloxane–polyurethane fouling-release (FR) coatings based on aminopropyl terminated poly(dimethylsiloxane) (PDMS) macromers were prepared and characterized for FR performance via laboratory biological assays. These systems rely on self-stratification, resulting in a coating with a siloxane-rich surface and polyurethane bulk. Previously, these coating systems have used PDMS with multiple functional groups which react into the polyurethane bulk. Here, aminopropyl terminated PDMS macromers were prepared, where a single amine group anchors the PDMS in the coating. Coatings were prepared with four molecular weights (1000, 5000, 10,000, and 15,000 g mol−1) and two levels of PDMS (5% and 10%). High water contact angles and low surface energies were observed for the coatings before and after water immersion, along with low pseudobarnacle removal forces. Laboratory bioassays showed reduced biofilm retention of marine bacteria, good removal of diatoms from coatings with low molecular weight PDMS, high removal of algal sporelings (young plants), and low removal forces of live barnacles.

Highly Cited

Study Snapshot

Siloxane-polyurethane coatings based on aminopropyl terminated PDMS macromers show promising fouling-release performance, reducing marine bacteria and diatom retention.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

A preliminary study on the properties and fouling-release performance of siloxane–polyurethane coatings prepared from poly(dimethylsiloxane) (PDMS) macromers

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References

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Citations

Investigation of Amphiphilic PDMS-Hyperbranched Polyglycerol Copolymers to Tune the Fouling-Release Properties in a Moisture Curable Coating System.

Optimal molecular weight of PDMS and polyglycerol branching ratio of 10:1 or 15:1 in amphiphilic PDMS-Hyperbranched Polyglycerol copolymers improve fouling-release properties in moisture-curable coating systems.

Composite coatings based on silicone-modified polyurethane and marine natural product chlorogentisyl alcohol for marine antifouling

Chlorogentisyl alcohol combined with silicone-modified polyurethane creates green marine antifouling coatings that effectively inhibit bacteria and algae for up to 90 days in seawater.

The Characteristics of Methylsiloxane Distribution in the Marine Surface Sediment, Masan Bay, Korea, in August 2018 and Suggesting Directions for Further Studies

Methylsiloxane levels in Masan Bay, Korea, increased between 2013 and 2021 due to the industry recession, with positive correlations between production and employment.

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The novel antibacterial coating system effectively reduces marine corrosion and fouling, extending service life and enhancing environmental sustainability in marine engineering.

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This study presents a novel computational design strategy that integrates machine learning, statistical thermodynamics, molecular dynamics simulation, and surface characterization techniques to improve the compatibility of silicone elastomer coatings with silicone oils.

Silicone‐containing polyurea elastomer possessing main‐chain boron–oxygen bonds with delayed stress relaxation and improved adhesive properties

The study developed a silicone-containing polyurea elastomer with dynamic boron-oxygen bonds, improving adhesion to metal substrates and reducing stress relaxation in anti-impact applications.

Amphiphilic Balance: Effect of the Hydrophilic-Hydrophobic Ratio on Fouling-Release Surfaces.

A balanced ratio of hydrophilicity-hydrophobicity in amphiphilic coatings, around 10-15 wt%, provides the best fouling-release performance, surpassing traditional hydrophobic marine coatings.