A low surface free energy approach in the control of marine biofouling
作者:
Elek Lindner,
期刊:
Biofouling
(Taylor Available online 1992)
卷期:
Volume 6,
issue 2
页码: 193-205
ISSN:0892-7014
年代: 1992
DOI:10.1080/08927019209386222
出版商: Taylor & Francis Group
关键词: low surface energy;non‐toxic antifoulants;perfluorinated surfactants;biofouling;antifouling
数据来源: Taylor
摘要:
A heavy growth of marine fouling organisms attached to shiphulls adversely affects operation of the ships, reduces their speed and increases their fuel consumption. At present toxic antifouling (AF) coatings are in use, but the recent concern about the environment makes it necessary to develop non‐toxic AF systems. The author's approach is based on the surface free energies that govern adhesion. Measurements on liquid barnacle adhesive indicated that solids (coatings) with surface free energies lower than 12 dynes·cm−1are needed to prevent attachment. Adsorbed monolayers of perfluorinated surfactants have the lowest known surface free energies. These monolayers were simulated by mixing such compounds into an epoxy coating matrix and by synthesizing acrylate, methacrylate and siloxane (silicone) polymers with long perfluorinated sidechains. These polymers showed much lower surface free energies than Teflon type perfluorinated polymers with no sidechains, and some showed excellent AF characteristics.
点击下载:
PDF (920KB)
返 回