三维网状蒙脱石/硬脂酸复合相变储能材料的制备及性能研究开题报告

 2020-02-10 11:02

1. 研究目的与意义(文献综述)

对于全世界来说,能源是科技进步和经济发展的必需品[1]。

自1970年能源危机开始,可持续发展和可再生能源一直只一个人们关注的热点[2]。

化石燃料的整个能源的比重为80%,而化石燃料的燃烧有带来了许多环境问题 [3]。

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2. 研究的基本内容与方案

二、 研究(设计)的基本内容、目标、拟采用的技术方案及措施研究目标:
揭示三维网状蒙脱石/硬脂酸复合相变材料形成的本质规律,以此制备出全新概念的三维网状蒙脱石/硬脂酸复合相变材料,通过大幅提高对相变材料的负载容量来提高相变储热容量,实现热能的高效利用。

研究目标如下:
① 制备三维网状蒙脱石;
② 通过负载硬脂酸制备三维网状蒙脱石/硬脂酸复合相变材料基本的研究内容:
(1)二维蒙脱石的制备,对原料进行物相、化学成分、物理性质和化学性质分析,通过超声波和高强度机械剪切作用将蒙脱石剥离成单片层,利用原子力显微镜测定蒙脱石纳米片的厚度;
(2)三维网状蒙脱石材料的制备,基于研究内容(1)的结果,考察蒙脱石纳米片厚度分布、片径尺寸对三维蒙脱石材料的影响机制,研究不同工艺条件(反应温度、反应时间,反应转速,反应物质量比等)对三维蒙脱石材料结构性能的影响;
(3)制备复合硬脂酸的三维网状蒙脱石的复合相变材料,利用真空浸渍法将硬脂酸与三维网状蒙脱石材料复合。

(4)三维网状结构复合相变材料的性能表征,对三维网状蒙脱石复合相变材料的结构进行表征,热性质进行表征,光热转换性质进行表征。

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3. 研究计划与安排

第 01~02周 通过查阅文献大致了解国内外制备相变储能材料的现状;

第03~04周 查阅相关文献资料,明确研究内容,确定试验方案,完成开题报告;

第05~12周 确定试验方案,完成试验内容;

第13~14周 完成并修改毕业论文;

第15~16周 准备论文答辩。

4. 参考文献(12篇以上)

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[10] P. Lv, C. Liu, Z. Rao, Review on clay mineral-based form-stable phase change materials: Preparation, characterization and applications, Renew. Sustain. Energy Rev. 68 (2017) 707–726.
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[12] Chen, T., Zhao, Y., amp; Song, S. (2017). Correlation of electrophoretic mobility with exfoliation of montmorillonite platelets in aqueous solutions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 525(May), 1–6.
[13] Wang, Y., Zheng, H., Feng, H. X., amp; Zhang, D. Y. (2012). Effect of preparation methods on the structure and thermal properties of stearic acid/activated montmorillonite phase change materials. Energy and Buildings, 47, 467–473.
[14] Sarier, N., Onder, E., Ozay, S., amp; Ozkilic, Y. (2011). Preparation of phase change material-montmorillonite composites suitable for thermal energy storage. Thermochimica Acta, 524(1–2), 39–46.
[15]Yi, H., Zhan, W., Zhao, Y., Qu, S., Wang, W., Chen, P., amp; Song, S. (2019). A novel core-shell structural montmorillonite nanosheets/stearic acid composite PCM for great promotion of thermal energy storage properties. Solar Energy Materials and Solar Cells, 192(September 2018), 57–64.

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