Fouling-Release Performance of Silicone Oil-Modified Siloxane-Polyurethane Coatings

Fouling-release coatings reinforced with micro-alumina and nano-alumina were prepared based on polydimethylsiloxane (PDMS) containing phenylmethylsilicone oil. The surface properties, mechanical properties, leaching behavior of silicone oil, anti-fouling and drag-reduction performance of the coating were studied. The results show that the addition of alumina can significantly improve the tensile strength, elastic modulus and Shore’s hardness of the coating. The adhesion experiments of marine bacteria and Navicula Tenera show that the addition of alumina can reduce the antifouling performance of the coating, which is related to the stripping mode of fouling organisms. The fouling organisms leave the coating surface by shearing, and the energy required for shearing is proportional to the elastic modulus of the coating. At 800–1400 rpm, the addition of alumina will reduce the drag reduction performance of the coating, which is related to the drag reduction mechanism of PDMS. PDMS counteracts part of the resistance by surface deformation. The larger the elastic modulus is, the more difficult the surface deformation is. The experiment of silicone oil leaching shows that the increase of alumina addition amount and the decrease of particle size will inhibit the leaching of silicone oil.

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Poly(ethylene) glycol-modified, amphiphilic, siloxane–polyurethane coatings and their performance as fouling-release surfaces

Journal of Coatings Technology and Research ◽

10.1007/s11998-016-9862-9 ◽

2016 ◽

Vol 14 (2) ◽

pp. 307-322 ◽

Cited By ~ 24

Author(s):

Teluka P. Galhenage ◽

Dean C. Webster ◽

Augusto M. S. Moreira ◽

Ryan J. Burgett ◽

Shane J. Stafslien ◽

...

Keyword(s):

Ethylene Glycol ◽

Poly Ethylene Glycol ◽

Polyurethane Coatings ◽

Fouling Release ◽

Poly Ethylene

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Surface modifying amphiphilic additives and their effect on the fouling-release performance of siloxane-polyurethane coatings

Biofouling ◽

10.1080/08927014.2021.1901891 ◽

2021 ◽

pp. 1-18

Author(s):

Jackson Benda ◽

Shane Stafslien ◽

Lyndsi Vanderwal ◽

John A. Finlay ◽

Anthony S. Clare ◽

...

Keyword(s):

Polyurethane Coatings ◽

Fouling Release

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

Biofouling ◽

10.1080/08927014.2010.531272 ◽

2010 ◽

Vol 26 (8) ◽

pp. 961-972 ◽

Cited By ~ 125

Author(s):

Stacy Sommer ◽

Abdullah Ekin ◽

Dean C. Webster ◽

Shane J. Stafslien ◽

Justin Daniels ◽

...

Keyword(s):

Polyurethane Coatings ◽

Fouling Release ◽

Preliminary Study

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The effect of formulation variables on fouling-release performance of stratified siloxane–polyurethane coatings

Journal of Coatings Technology and Research ◽

10.1007/s11998-011-9362-x ◽

2011 ◽

Vol 9 (3) ◽

pp. 235-249 ◽

Cited By ~ 28

Author(s):

Rajan B. Bodkhe ◽

Stephanie E. M. Thompson ◽

Carolyn Yehle ◽

Nicholas Cilz ◽

Justin Daniels ◽

...

Keyword(s):

Polyurethane Coatings ◽

Fouling Release ◽

Formulation Variables

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Effects of pigmentation on siloxane–polyurethane coatings and their performance as fouling-release marine coatings

Journal of Coatings Technology and Research ◽

10.1007/s11998-011-9340-3 ◽

2011 ◽

Vol 8 (6) ◽

pp. 661-670 ◽

Cited By ~ 20

Author(s):

Stacy A. Sommer ◽

Joseph R. Byrom ◽

Hanna D. Fischer ◽

Rajan B. Bodkhe ◽

Shane J. Stafslien ◽

...

Keyword(s):

Polyurethane Coatings ◽

Marine Coatings ◽

Fouling Release

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Investigation of Silicone Oil Leaching in PDMS Fouling Release Coating by Confocal Laser Scanning Microscope

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.842.737 ◽

2013 ◽

Vol 842 ◽

pp. 737-741 ◽

Cited By ~ 3

Author(s):

Zhan Ping Zhang ◽

Yu Hong Qi ◽

Miao Ba ◽

Fu Jie Liu

Keyword(s):

Laser Scanning ◽

Silicone Oil ◽

Marine Organism ◽

Confocal Laser Scanning Microscope ◽

Laser Scanning Microscopy ◽

Confocal Laser Scanning ◽

Confocal Laser ◽

Dibutyltin Dilaurate ◽

Fouling Release ◽

Dimethyl Silicone

The silicone oil leachate in fouling release coatings has very important effect on inhabitting marine organism on ships hull and releasing of biofouling from it. For observing and testifying the leaching phenomenon of silicone oil in PMDS fouling release coating, the coating was designed and prepared consisting of 107 silicone gum, dimethyl silicone oil, tetraethylorthosilicate as crosslinked curing agent, multi-walled carbon nanotube as filler, dibutyltin dilaurate as catalyst. The confocal laser scanning microscopy (CLSM) LEXT OLS4000 was used to observe the morphology of the coating and silicone oil leachate. The results indicate that the dimethyl silicone oil can stably exist and distribute uniformly in PDMS coating. Regardless of between the coating and air or and seawater, silicone oil can leach on the interface. Silicone oil not only can leache faster on the interface between seawater and the coating than that between air and it, but also can easily form the continuous oil film because of the gravity of seawater.

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Use of viscodissection and silicone oil in vitrectomy for severe diabetic retinopathy

Seminars in Ophthalmology ◽

10.1080/08820530390899150 ◽

2003 ◽

Vol 18 (3) ◽

pp. 121-126

Author(s):

Grigorian R.A. ◽

Castellarin A. ◽

Bhagat N. ◽

Del Priore ◽

Von Hagen ◽

...

Keyword(s):

Diabetic Retinopathy ◽

Silicone Oil

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Colchicine Uptake and Binding by Human Platelets

Thrombosis and Haemostasis ◽

10.1055/s-0038-1651471 ◽

1975 ◽

Vol 34 (03) ◽

pp. 780-794 ◽

Cited By ~ 4

Author(s):

Dianne M Kenney ◽

Francis C Chao ◽

James L Tullis ◽

Gail S Conneely

Keyword(s):

Time Dependence ◽

Incubation Period ◽

Binding Sites ◽

Silicone Oil ◽

Cold Treatment ◽

Human Platelets ◽

Temperature Dependent

SummaryThe uptake and binding of antimitotic alkaloid colchicine has been demonstrated in washed preparations of human platelets. A silicone oil technique was adapted so that both uptake and binding of 14C-colchicine were examined in the same platelet preparations. The time dependence and amount of colchicine taken up and bound by different platelet preparations during a 90 to 120 min incubation period were highly reproducible. Both colchicine uptake and binding by intact platelets, and colchicine binding by preparations of lysed platelets were specific and temperature dependent. Colchicine uptake was slowly reversible. Magnesium and GTP enhanced colchicine binding by lysed platelet preparations but calcium decreased binding.Exposure of platelets to either cold (4° C) or to thrombin, which disrupt platelet microtubules, produced significant increases in colchicine uptake and binding. The thrombin effect was maximal at 37° C and resulted in a greater increase in uptake and binding than that produced by either cold treatment alone or, by cold treatment followed by incubation with thrombin at 37° C. The amount of increase in uptake and binding produced by thrombin was independent of both thrombin (1–5 Units/109 platelets) and colchicine concentrations (1–50 × 10−6M).It is postulated that thrombin may initiate the formation, or make available, colchicine binding sites (microtubule subunits) within platelets.

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