Tough amphiphilic antifouling coating based on acrylamide, fluoromethacrylate and non-isocyanate urethane dimethacrylate crosslinker. Issue 1 (29th December 2020)

• Record Type: Journal Article
• Authors: Vignesh, Vishal; Nguyen, Thi Hoang Ha; Vanderwal, Lyndsi; Stafslien, Shane; Brennan, Anthony
• Is Part Of: Biofouling. Volume 37:Issue 1(2021)
• Page Start: 36
• Page End: 48
• Publication Date: 2020-12-29
• Subjects: Antifouling -- amphiphilic -- non-isocyanate -- Taguchi -- toughness; Marine fouling organisms -- Periodicals; Materials -- Biodeterioration -- Periodicals; Fouling -- Periodicals; Biodegradation -- Periodicals; Environmental Microbiology -- Periodicals; Water Microbiology -- Periodicals; 576.165
• DOI: 10.1080/08927014.2020.1870110
• Languages: English
• ISSNs: 0892-7014

Abstract

Abstract: This study is focused on the development of tougher gels using combinations of acrylamide, fluoromethacrylate and a non-isocyanate urethane dimethacrylate (NIUDMA) crosslinker. The NIUDMA was tailored with 2, 3-epoxypropoxy propyl-polydimethylsiloxane segments E9 (MW = 0.36 kg mol −1 ), E11 (MW = 0.5-0.6 kg mol −1 ) and E12 (MW = 1-1.4 kg mol −1 ). A 3 level Taguchi design was used to evaluate the role of each component of the ternary copolymer gel on the elastic modulus and toughness. The toughness ranged from 2.5-7 MJ m −3 whereas the modulus ranged from 27-70 MPa. The formulations with the highest toughness and modulus were screened for their antifouling potential in biological assays against the microalga Navicula incerta and the bacterium Cellulophaga lytica . The E9 gels showed the best performance, achieving a 73% reduction in N. incerta cells and a 92% reduction in C. lytica biofilm remaining after water jetting treatments, when compared with the commercial Intersleek product IS700.