Fouling control coatings using low surface energy, foul release technology

Townsin, R L; Anderson, Colin

doi:10.1533/9781845696313.4.693

Cited by 25 publications

(30 citation statements)

References 9 publications

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“…When coated on pearl oysters, waxes and polyurethanes offer both deterrence and enhanced removal of fouling organisms (de Nys and Horne 2003). Similarly, low surface energy coatings are constantly improving with increased resilience and decreased flow required for the release of fouling organisms (Townsin and Anderson 2009). For example, release of fouling is said to occur at speeds as low as 10 knots.…”

Section: Shellfishmentioning

confidence: 99%

“…Biocide-free, low surface energy siloxane elastomers and fluoropolymers may provide a non-toxic alternative to control biofouling in aquaculture given the step-wise improvements in their efficacy in the marine transport industry (Lewis 2009;Townsin and Anderson 2009;Magin et al 2010;Webster and Chisholm 2010). These 'fouling-release' coatings aim at reducing or preventing the adhesion of fouling.…”

Section: Non-toxic Coatingsmentioning

confidence: 99%

“…These 'fouling-release' coatings aim at reducing or preventing the adhesion of fouling. Silicone-based paints are a non-toxic alternative to biocidal paints for ships' hulls, where the speed of the vessel produces the hydrodynamic shear required to remove weakly adhered fouling (Yebra et al 2004;Townsin and Anderson 2009;Webster and Chisholm 2010). Although the hydrodynamic forces are much reduced in a 'stationary' aquaculture environment, nets and panels coated with non-toxic silicone coatings reduce the initial stages of fouling development and make it easier to clean the net of fouling that does accumulate (Hodson et al 2000;Terlizzi et al 2000).…”

Section: Non-toxic Coatingsmentioning

confidence: 99%

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The impact and control of biofouling in marine aquaculture: a review

et al. 2012

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Biofouling in marine aquaculture is a specific problem where both the target culture species and/or infrastructure are exposed to a diverse array of fouling organisms, with significant production impacts. In shellfish aquaculture the key impact is the direct fouling of stock causing physical damage, mechanical interference, biological competition and environmental modification, while infrastructure is also impacted. In contrast, the key impact in finfish aquaculture is the fouling of infrastructure which restricts water exchange, increases disease risk and causes deformation of cages and structures. Consequently, the economic costs associated with biofouling control are substantial. Conservative estimates are consistently between 5-10% of production costs (equivalent to US$ 1.5 to 3 billion yr 71 ), illustrating the need for effective mitigation methods and technologies. The control of biofouling in aquaculture is achieved through the avoidance of natural recruitment, physical removal and the use of antifoulants. However, the continued rise and expansion of the aquaculture industry and the increasingly stringent legislation for biocides in food production necessitates the development of innovative antifouling strategies. These must meet environmental, societal, and economic benchmarks while effectively preventing the settlement and growth of resilient multi-species consortia of biofouling organisms.

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Section: Shellfishmentioning

confidence: 99%

Section: Non-toxic Coatingsmentioning

confidence: 99%

Section: Non-toxic Coatingsmentioning

confidence: 99%

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The impact and control of biofouling in marine aquaculture: a review

et al. 2012

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“…Hence, attached organisms detach under their own weight as they grow or they are removed by water movement, as when a ship moves through the water. Among the products assessed to date, silicone was the polymer having the lowest adhesion and the best foul release capacity (Townsin & Anderson, 2009;Lewis, 2009;Wells et al, 1997). Foul release coatings provide best results for vessels operating regularly at speeds greater than 15 knots, or they will necessitate regular cleaning (Townsin & Anderson, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Among the products assessed to date, silicone was the polymer having the lowest adhesion and the best foul release capacity (Townsin & Anderson, 2009;Lewis, 2009;Wells et al, 1997). Foul release coatings provide best results for vessels operating regularly at speeds greater than 15 knots, or they will necessitate regular cleaning (Townsin & Anderson, 2009). Although antifouling solutions based on surface properties have proven to inhibit biofouling, they are still not widely applied to vessels due to practical shortcomings (Webster & Chisholm, 2010;Lewis, 2009).…”

Section: Introductionmentioning

confidence: 99%

Antifouling Effectiveness and Potential Toxicological Risk of an Elastomer-Based Coating against Zebra Mussels

Lafontaine¹,

Veillette²

2016

ENRR

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The fouling of hard substrates by zebra mussels (Dreissena sp.) in freshwater ecosystems is a persistent problem which calls for antifouling treatments being fully efficient, long-lasting, and environmentally safe. The present study assessed the potential toxicological impact and the effectiveness of an elastomer-based coating containing salts that would make surfaces repulsive to zebra mussel attachment. Laboratory testing using standard analytical methods for water and wastewater, and a battery of six bioassays confirmed that the leachates from the coating exhibited no toxic response suggesting its safety to the receiving environment. In situ experiments using multi-plate collectors indicated that biofouling by zebra mussels and sponges on coated surfaces was effectively reduced by up to 97% over one growing season. Effectiveness of the coating was slightly less (82%) during the second growing season. Results suggested that the repulsive effect would be due to the presence of salts within the elastomer-based coating affecting both zebra mussels and other freshwater organisms. Saltwater experiments indicated that the coating was totally ineffective to prevent biofouling in marine environments. In addition of being environmentally safe to use, results suggested that the coating can be an effective antifouling product for submerged structures in freshwater environments.

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Hydrophobicity and Superhydrophobicity in Fouling Prevention in Sea Environment

Ferrari

Cirisano

2018

Advances in Contact Angle, Wettability and Adhesion

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Fouling control coatings using low surface energy, foul release technology

Cited by 25 publications

References 9 publications

The impact and control of biofouling in marine aquaculture: a review

The impact and control of biofouling in marine aquaculture: a review

Antifouling Effectiveness and Potential Toxicological Risk of an Elastomer-Based Coating against Zebra Mussels

Hydrophobicity and Superhydrophobicity in Fouling Prevention in Sea Environment

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