1. 毕业设计（论文）的内容和要求

主要内容包括：反射降温材料是通过对太阳光中的可见光和近红外光的反射，从而使得材料表内部升温速率下降的功能型复合材料。

前期的探索发现，在聚合物基体中加入3wt%的金红石型tio2可以极大提高材料的太阳光反射率，从而提高材料的降温效果。

虽然可见和近红外的反射率可以提高到60-70%，但仍有一部分太阳光无法反射，进而转化成了热量积蓄在材料内部，最终导致降温区域的温度并不能达到人体的舒适温度。

2. 参考文献

CAI Y, SONG L, HE Q, et al. Preparation, thermal and flammability properties of a novel form-stable phase change materials based on high density polyethylene/poly(ethylene-co-vinyl acetate)/organophilic montmorillonite nanocomposites/paraffin compounds [J]. Energy Conversion and Management, 2008, 49(8): 2055-62. [2] DSILVA WINFRED RUFUSS D, INIYAN S, SUGANTHI L, et al. Low mass fraction impregnation with graphene oxide (GO) enhances thermo-physical properties of paraffin for heat storage applications [J]. Thermochimica Acta, 2017, 655(226-33. [3] FAN L-W, FANG X, WANG X, et al. Effects of various carbon nanofillers on the thermal conductivity and energy storage properties of paraffin-based nanocomposite phase change materials [J]. Applied Energy, 2013, 110(163-72. [4] FARID M M, KHUDHAIR A M, RAZACK S A K, et al. A review on phase change energy storage: materials and applications [J]. Energy Conversion and Management, 2004, 45(9-10): 1597-615. [5] HONG H, PAN Y, SUN H, et al. Superwetting polypropylene aerogel supported form-stable phase change materials with extremely high organics loading and enhanced thermal conductivity [J]. Solar Energy Materials and Solar Cells, 2018, 174(307-13. [6] KO#346;NY J, BISWAS K, MILLER W, et al. Field thermal performance of naturally ventilated solar roof with PCM heat sink [J]. Solar Energy, 2012, 86(9): 2504-14. [7] LEVINSON R, BERDAHL P, AKBARI H, et al. Methods of creating solar-reflective nonwhite surfaces and their application to residential roofing materials [J]. Solar Energy Materials and Solar Cells, 2007, 91(4): 304-14. [8] SAR#305; A. Form-stable paraffin/high density polyethylene composites as solid#8211;liquid phase change material for thermal energy storage: preparation and thermal properties [J]. Energy Conversion and Management, 2004, 45(13-14): 2033-42. [9] TANG Y, LIN Y, JIA Y, et al. Improved thermal properties of stearyl alcohol/high density polyethylene/expanded graphite composite phase change materials for building thermal energy storage [J]. Energy and Buildings, 2017, 153(41-9. [10] XING L, HONGYAN L, SHUJUN W, et al. RETRACTED: Preparation and thermal properties of form-stable paraffin phase change material encapsulation [J]. Solar Energy, 2006, 80(12): 1561-7. [11] WANG S, ZHANG J. Effect of titanium dioxide (TiO 2 ) on largely improving solar reflectance and cooling property of high density polyethylene (HDPE) by influencing its crystallization behavior [J]. Journal of Alloys and Compounds, 2014, 617(163-9. [12] 肖鑫. 多孔基相变蓄能材料的热质传递现象和机理研究[D]. 上海交通大学, 2015. [13] 陈彭. 石蜡/高聚物/泡沫铜定形储热材料的制备及性能研究[D]. 华南理工大学, 2016. [14] 王世超. 聚烯烃太阳光反射降温材料的结构与性能[D]. 南京工业大学, 2015. [15] 余丽蓉, 陆春华, 高树军,等. 隔热功能涂料的研究与发展趋势[J]. 材料导报, 2006, 20(10):52-55.20(10):52-67. [16] 王科林, 陈克宁, 牛家嵘,等. 二氧化钛的隔热机理及其在功能织物上的应用[J]. 现代纺织技术, 2009, 17(1):59-62. [17] 王世超, 曹宇, 张军.TiO2表面接枝偶联剂对高密度聚乙烯降温性能的影响[J]. 南京工业大学学报(自然科学版), 2016, 38(1):7-12.

3. 毕业设计（论文）进程安排

起讫日期 设计（论文）各阶段工作内容 备 注 2.26-3.11 文献查询及文献翻译 3.12-3.18 完成开题报告并开题 3.19-4.22 进行实验工作 4.23－4.29 毕业设计中期检查 4.30－6.10 继续实施实验并撰写论文 6.11-6.22 论文答辩