纳米SiO_2/改性丙烯酸树脂低表面能防污涂料
Antifouling Coating with Low Surface Energy Based on Silicone Modified Acrylic Resin and Nano SiO_2
查看参考文献15篇
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文摘
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低表面能防污涂料是船舶涂料的一个重要分支。利用有机硅改性的丙烯酸树脂作为成膜物质,纳米SiO_2为填料,制备了低表面能纳米复合防污涂料。考察了有机硅单体对改性丙烯酸树脂性能的影响,发现随着有机硅含量的增加,改性后的树脂粘度减小,水接触角增加。研究了氟硅烷改性纳米SiO_2含量对涂层形貌和水接触角的影响。结果表明,添加少量的氟硅烷处理的纳米SiO_2(l%和3%)可显著增大涂层的水接触角,提高涂层的防污性能。添加纳米SiO_2浆的涂层的水接触角要高于添加接枝氟硅烷纳米SiO_2的涂层,而后者要高于添加未接枝氟硅烷纳米SiO_2的涂层。当纳米SiO_2的添加量在1%和3% 时,涂层的水接触角分别达到101. 8°和103°。采用纳米浓缩浆工艺分散后的纳米SiO_2可以使涂层的表面形成微米-纳米的特征形貌,从而实现防污的目的。 |
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其他语种文摘
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Antifouling coating with low surface energy is an important branch of marine coatings. In the present work,an organosilicone modified acrylic resin was used as coating matrix and nano SiO_2 was used as filler to prepare an antifouling coating with low surface energy. The effect of silicone monomer content on the properties of the modified acrylic resin was investigated. It was found that with the increase of silicone monomer content, the viscosity of the modified acrylic resin decreases,while the water contact angle of the modified acrylic resin increases. The effect of nano SiO_2 content on the coating morphology and water contact angle was studied. The results show that the addition of small amount of nano SiO_2 (1% and 3%) that was treated by fluorosilane can significantly increase water contact angle and improve the anti-fouling property of the coatings. The water contact angle of polyurethane coating with addition of nano SiO_2 paste is higher than that of polyurethane coating with addition of fluorosilane modified SiO_2,while the later is higher than that of polyurethane coating with addition of unmodified SiO_2. When the contents of nano SiO_2 are 1% and 3%,the water contact angles of the coatings reach 101. 8°and 103°,respectively. The dispersed nano SiO_2 in concentrated paste contributes to the micro-nano structure of coating surface,which benefits the anti-fouling property. |
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来源
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中国材料进展
,2014,33(2):95-100 【扩展库】
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DOI
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10.7502/j.issn.1674-3962.2014.02.04
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关键词
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纳米SiO_2
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防污涂料
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氟硅烷
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低表面能
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地址
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中国科学院金属研究所, 国家金属腐蚀控制工程技术研究中心, 辽宁, 沈阳, 110016
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大连裕祥科技集团有限公司, 辽宁, 大连, 116033
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1674-3962 |
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学科
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化学工业 |
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基金
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国家自然科学基金
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国家科技支撑计划项目
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文献收藏号
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CSCD:5084842
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