以水性有机硅树脂为基料,采用SiC为填料制备了水性散热降温涂料.实验考察了SiC填料的添加量、粒径以及涂层厚度等因素对涂层散热性能的影响；同时对涂层的耐热性能和电绝缘性能作了研究.结果表明,当SiC填料的粒径为60nm,用量为基体质量的30％,涂层厚度为42μm时,散热涂层的降温温差最大,为11.5℃；另外,涂层的SEM照片显示,在SiC填料用量为基体质量的30％时,相对于微米SiC填料,纳米SiC填料分散均匀且填料彼此间粘结更为紧密；利用TGA测试显示,在SiC用量为基体质量的30％时,涂层在200℃下的热失重在0.4％以内,都能在200℃高温下长期使用；介电常数测试表明,在SiC用量为基体质量的30％时,涂层的介电常数都不超过6.0,表现出良好的介电性能.
参考文献
| [1] | 杨坤民,陈福林,岑兰,周彦豪.导热橡胶的研究进展[J].橡胶工业,2005(02):118-123. |
| [2] | 萧俊庆;张江忠 .喷涂凝结散热膜的组成物[P].中国:101993621A,2010 03-30. |
| [3] | Leivo E M;Kellberg T H;Vuoristo P M J.Structure and thermal conductivity of flame sprayed polyamide 11 coatings filled with Al2O3 、A1N and BN ceramics[A].London,2001:327-330. |
| [4] | R. Srikar;T. Gambaryan-Roisman;C. Steffes;P. Stephan;C. Tropea;A. L. Yarin .Nanofiber coating of surfaces for intensification of drop or spray impact cooling[J].International Journal of Heat and Mass Transfer,2009(25/26):5814-5826. |
| [5] | Tazawa M;Xu G;Tanemura S .Spectral selective radiating materials for direct radiative heating[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2004(1/4):459-466. |
| [6] | 高建中 .红外线辐射复合散热涂料及涂料的制备和喷涂方法[P].中国:101659829A,2010-03-03. |
| [7] | 汪国华;王日精;王小红 等.一种纳米炭黑散热涂料及其制备方法[P].中国:102250546A,2011-11-23. |
| [8] | 沈建基 .散热涂层及其制备方法和制作该散热涂层组合物[P].中国:101070448A,2007-11-4. |
| [9] | Chetan N. Suryawanshi;Taesam Kim;Chhiu-Tsu Lin .An instrument for evaluation of performance of heat dissipative coatings[J].Review of Scientific Instruments,2010(3):035105-1-035105-6. |
| [10] | J. Martan;N. Semmar;C. Leborgne;E. Le Menn;J. Mathias .Thermal properties characterization of conductive thin films and surfaces by pulsed lasers[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(1/4):57-63. |
| [11] | 顾军渭,张秋禹,李洪春,张军平,孔杰,唐玉生,张广成.钛酸酯改性纳米β-SiCw/赛璐珞复合材料的结构与性能研究[J].现代化工,2007(07):38-41. |
| [12] | 何登良,董发勤,刘家琴,王海滨.远红外功能材料的发展与应用[J].功能材料,2008(05):709-712,716. |
| [13] | G.Pezzotti;I.Kamada .Thermal conductivity of AlN/polystyrene interpenetrating networks[J].Journal of the European Ceramic Society,2000(8):1197-1203. |
| [14] | Isbimaru A.Wave propagation and scattering in random media[M].New York:Academic Press,Inc,1978:215-221. |
| [15] | 欧阳德刚,周明石,张奇光.提高红外辐射涂料辐射特性途径的分析[J].钢铁研究,2000(03):34. |
| [16] | 朱方辉,张广成,胡志毅,陈宏书,田少辉.聚乙烯薄膜发射率的影响因素研究[J].中国塑料,2007(08):62-65. |
| [17] | Seifert S;Litovsky E;Kleiman JI;Heimann RB .Thermal resistance and apparent thermal conductivity of thin plasma-sprayed mullite coatings[J].Surface & Coatings Technology,2006(11):3404-3410. |
| [18] | Nelson JK;Hu Y .Nanocomposite dielectrics - properties and implications[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2005(2):213-222. |
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