目的：制备一种新型绿色环保的耐海洋微生物附着涂层。方法通过聚硅氧烷(有机硅)改性丙烯酸树脂,合成以硅氧烷为侧链,丙烯酸树脂为主链的有机硅改性丙烯酸树脂。利用聚多巴胺的粘附性和还原性,制备二氧化硅/聚多巴胺/纳米银( SiO2/PD/Ag)纳米复合材料。以制备的有机硅改性丙烯酸树脂为成膜物,以载银纳米颗粒为杀菌剂,制备耐微生物附着环保涂层。通过傅里叶红外光谱仪( FT-IR)和接触角检测仪( CA)分别对有机硅改性丙烯酸树脂的Si—O基团和接触角作表征,通过透射电子显微镜( TEM)表征SiO2/PD/Ag的制备过程,通过水解率和细菌附着等实验评价涂层的防污性能。结果Si—O—Si和Si—O—C的接入使得丙烯酸树脂改性后的接触角从72°提高到96°。 SiO2/PD/Ag是一种特殊“核-壳-卫星”结构的载银纳米颗粒,纳米银均匀分散在SiO2的表面。涂层的水解性能良好,水解率为1.03μm/d,杀菌剂分散均匀。结论该涂层通过自抛光和低表面能双重物理抑菌作用和纳米银的杀菌作用,能有效抑制海洋微生物在试样表面的附着。
trix material and mixing with silica/polydopamine/silver ( SiO2/PD/Ag) nanocomposites as bactericide. The Si—O group and contact angle of the silicone-modified acrylic resin were characterized by Fourier transform infrared spectrometer ( FT-IR) and contact angle detector ( CA) ,respectively, the preparation process of SiO2/PD/Ag was characterized by transmission electron microscope ( TEM) , and the antifouling property of the coating was investigated by hydrolysis rate and bacterial adhesion. Results The introduction of Si—O—Si and Si—O—C increased the contact angle of the modified acrylic resin from 72° to 96°. SiO2/PD/Ag is a special silver nano-particle with"core-shell-satellite" structure, and the silver nanoparticles were evenly distributed on the surface of SiO2 . The coating had a good hydrolysis performance, with a hydrolysis rate of 1. 03μm/d, and the bactericide was distributed evenly. Conclusion The coating had double physical antibacterial property through self-polishing and low surface energy, and the silver nanoparticles also had sterilizing property, and could therefore effectively inhibit the adhesion of marine microorganisms on the sample surface.
参考文献
| [1] | Zheng, B.;Zhao, Y.;Xue, W.;Liu, H..Microbial influenced corrosion behavior of micro-arc oxidation coating on AA2024[J].Surface & Coatings Technology,2013:100-105. |
| [2] | WHITFIELD M J;BONO D;WEI L et al.High-throughput Corrosion Quantification in Varied Microenvironments[J].Corrosion Science,2014,88:481-486. |
| [3] | WAKAI S;ITO K;IINO T et al.Corrosion of Iron by Io-dide-Oxidizing Bacteria Isolated from Brine in an Iodine Production Facility[J].Microbial Ecology,2014,68(3):519-527. |
| [4] | 仇伟,刘见祥,曾舒,张波,冯利军.超疏水涂料的制备及其防覆冰性能[J].表面技术,2012(06):108-110. |
| [5] | 史航,陈晓蕾,石建高,刘永利,王鲁民.新型海洋防附着涂层的制备及释放研究[J].涂料工业,2009(03):10-13. |
| [6] | 周海晖,许岩,罗胜联,曾凌三.我国防腐蚀涂料的现状及其发展[J].表面技术,2002(01):5-8. |
| [7] | Pramanik, A.;Laha, D.;Bhattacharya, D.;Pramanik, P.;Karmakar, P..A novel study of antibacterial activity of copper iodide nanoparticle mediated by DNA and membrane damage[J].Colloids and Surfaces, B. Biointerfaces,2012:50-55. |
| [8] | GIANNOUSI K;SARAFIDIS G;MOURDIKOUDIS S et al.Selective Synthesis of Cu2 O and Cu/Cu2 O NPs:Antifungal Activity to Yeast Saccharomyces Cerevisiae and DNA Inter-action[J].Inorganic Chemistry,2014,53(18):9657-9666. |
| [9] | Shrivastava S;Bera T;Roy A;Singh G;Ramachandrarao P;Dash D .Characterization of enhanced antibacterial effects of novel silver nanoparticles[J].Nanotechnology,2007(22):25103-1-25103-9-0. |
| [10] | 袁军平,李卫.含银和铌抗菌316L不锈钢的研究[J].稀有金属材料与工程,2013(10):2004-2008. |
| [11] | LIONG M;FRANCE B;BRADLEY K A .Antimicrobial Ac-tivity of Silver Nanocrystals Encapsulated in Mesoporous Sil-ica Nanoparicles[J].Advanced Materials,2009,21:1684-1687. |
| [12] | Yocihi Yonehara;Hiroshi Yamashita;Chikara Kawamura .A new antifouling paint based on a zinc acrylate copolymer[J].Progress in Organic Coatings: An International Review Journal,2001(3/4):150-158. |
| [13] | Tao Liu;Bing Yin;Tian He .Complementary Effects of Nanosilver and Superhydrophobic Coatings on the Prevention of Marine Bacterial Adhesion[J].ACS applied materials & interfaces,2012(9):4683-4690. |
| [14] | Jun Ren;Pingping Han;Houliang Wei .Fouling-Resistant Behavior of Silver Nanoparticle-Modified Surfaces against the Bioadhesion of Microalgae[J].ACS applied materials & interfaces,2014(6):3829-3838. |
| [15] | Yaohua Dong;Tao Liu;Shibin Sun .Preparation and characterization of SiO_2/polydopamine/Ag nanocomposites with long-term antibacterial activity[J].CERAMICS INTERNATIONAL,2014(4):5605-5609. |
| [16] | Zhang, L.;Wu, J.;Wang, Y.;Long, Y.;Zhao, N.;Xu, J. .Combination of bioinspiration: A general route to superhydrophobic particles[J].Journal of the American Chemical Society,2012(24):9879-9881. |
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