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Optimization of antifouling coatings incorporating butenolide, a potent antifouling agent via field and laboratory tests
作者: Chen, Lianguo1; Xia, Chuanhai2; Qian, Pei-Yuan1
ISSN号: 0300-9440
出版日期: 2017-08-01
卷号: 109, 页码:22-29
关键词: Antifouling coating ; Butenolide ; Rosin ; Raft trial ; Laboratory assay
DOI: 10.1016/j.porgcoat2017.04.014
英文摘要: Rosin-based antifouling paint with the incorporation of butenolide, a promising antifoulant, possesses the potential to deter the settlement of marine organisms on submerged surfaces. With the purpose to extend the antifouling duration, this research investigated the respective contribution of paint ingredients, including butenolide concentrations (5%, 10% and 15%), pigment choices (TiO2, Fe2O3, Cu2O and ZnO) and binder compositions (acrylic copolymer to rosin at 1: 2.5, 1.5: 2 and 2.5: 1), to the field antifouling performance of butenolide. A raft trial was carried out at Yung Shue 0, Hong Kong after the application of antifouling paints on PVC panels. Biofouling dynamics on panel surfaces, such as coverage percentage and biomass accumulation, were monitored until submersion for 6 months to allow for the assessment of antifouling efficiency. Field results showed that butenolide incorporation generally inhibited the settlement of fouling species on the coated panels as demonstrated by the decreased surface coverage and biomass weight. Coatings with 1: 2.5 paints containing 10% butenolide exhibited the best antifouling performance with only 34% of the surface covered by fouling organisms, which mainly consisted of algae and slime. The smallest biomass increase of the fouling community was also observed for 1: 2.5 coatings. An increased proportion of rosin in binder compositions yielded better antifouling performance following the order of 1: 2.5 > 1.5: 2 > 2.5: 1. Laboratory experiments were also conducted to examine the behavior of paint coatings in stirring artificial seawater. Butenolide addition decreased the film hardness and inhibited water uptake, but resulted in weight loss of paint coatings. Along with the gradual release of butenolide, the hardness of paint films increased gradually. Overall, a service life of 6 months, while eliminating the use of heavy metals, highlights the effectiveness of butenolide-incorporated paint formulation, especially 1: 2.5 paint, as an environmentally benign and fouling-resistant candidate for future antifouling application.
研究领域[WOS]: Chemistry ; Materials Science
项目资助者: National Natural Science Foundation of China(41576140) ; China Ocean Mineral Resource Research and Development Association(COMRRDA125C01)
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000403735200003
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内容类型: 期刊论文
Appears in Collections:中科院烟台海岸带研究所知识产出_期刊论文

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作者单位: 1.Hong Kong Univ Sci & Technol, Marine Environm Sci Program, Clear Water Bay, Hong Kong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China

Recommended Citation:
Chen, Lianguo,Xia, Chuanhai,Qian, Pei-Yuan. Optimization of antifouling coatings incorporating butenolide, a potent antifouling agent via field and laboratory tests[J]. PROGRESS IN ORGANIC COATINGS,2017,109:22-29.
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