Optimisation of the properties of siloxane coatings as anti-biofouling coatings: Comparison of PACVD and hybrid PACVD–PVD coatings

✍ Scribed by Parnia Navabpour; Dennis Teer; Xueju Su; Chen Liu; Su Wang; Qi Zhao; Crtomir Donik; Aleksandra Kocijan; Monika Jenko

• Book ID: 104094766
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 709 KB
• Volume: 204
• Category: Article
• ISSN: 0257-8972
• DOI: 10.1016/j.surfcoat.2010.03.011

✦ Synopsis

Plasma-assisted chemical vapour deposition (PACVD) siloxane coatings from a mixture of hexamethyldisiloxane (HMDSO) and O 2 , and hybrid coatings deposited by simultaneous sputtering of silicon and plasma polymerisation of HMDSO + O 2 were prepared on glass and steel substrates. The effect of the addition of sputtered silicon was investigated for coatings with different HMDSO/O 2 ratios. The microstructure and composition of coatings were affected by the coating parameters used. Silicon content was roughly the same for all coatings; carbon content decreased while oxygen content and surface energy increased with decreasing HMDSO/O 2 ratio in hybrid coatings. Hardness and modulus were higher for hybrid coatings and increased with decreasing HMDSO/O 2 ratio. Hybrid coatings showed much better scratch and wear resistance than PACVD coatings. All coatings showed good fouling-release performance with the freshwater bacterium Pseudomonas fluorescens.