以SiO2为载体,癸酸-棕榈酸为相变材料,采用溶胶-凝胶法制备了癸酸-棕榈酸/SiO2相变储湿复合材料,利用等温吸放湿法、步冷曲线法、FTIR、SEM、激光粒度分析仪(LPSA)、BET、TGA和DSC等对其进行性能测试和表征.结果表明:癸酸-棕榈酸/SiO2相变储湿复合材料的载体材料SiO2具有"笼"结构,其大量微孔形成三维空间网格结构既可以通过癸酸-棕榈酸与SiO2的物理嵌合方式包裹与束缚相变材料,又可以通过SiO2的亲水性能吸附水分子,具有良好的热湿性能.癸酸-棕榈酸/SiO2相变储湿复合材料表面光滑圆润无明显凹陷,颗粒粒径较小且均匀性较好(粒径为82.14 nm、孔体积为0.010 7 mL/g、孔比表面积为25.16 m2/g、孔平均直径为26.63 nm),属于纳米级有机相变芯材/无机基体复合材料;相变温度为19.88～23.13℃、相变潜热为38.55～42.56 J/g,癸酸-棕榈酸的质量分数约为31.59％,满足人体舒适度的温度范围,适合在建筑领域中广泛应用.
参考文献
| [1] | Min Li;Hongtao Kao;Zhishen Wu;Jinmiao Tan.Study on preparation and thermal property of binary fatty acid and the binaryfatty acids/diatomite composite phase change materials[J].Applied energy,20115(5):1606-1612. |
| [2] | Li, M.;Wu, Z.;Kao, H..Study on preparation and thermal properties of binary fatty acid/diatomite shape-stabilized phase change materials[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,20118(8):2412-2416. |
| [3] | Motahar, Sadegh;Nikkam, Nader;Alemrajabi, Ali A.;Khodabandeh, Rahmatollah;Toprak, Muhammet S.;Muhammed, Mamoun.A novel phase change material containing mesoporous silica nanoparticles for thermal storage: A study on thermal conductivity and viscosity[J].International Communications in Heat and Mass Transfer: A Rapid Communications Journal,2014:114-120. |
| [4] | L.-Y.WANG;P.-S.TSAI;Y.-M.YANG.Preparation of silica microspheres encapsulating phase-change material by sol-gel method in O/W emulsion[J].Journal of Microencapsulation: Microcapsules Liposomes Nanoparticles Microcells Microspheres,20061(1):3-14. |
| [5] | 张鸿;武晓华;王晓磊;王倩倩.月桂酸/十六醇/二氧化硅复合相变材料的结构与性能[J].材料科学与工程学报,2010(5):672-675. |
| [6] | 付路军;董发勤;杨玉山;何平.二元脂肪酸/SiO2复合相变储能材料的制备与表征[J].功能材料,2013(4):548-551. |
| [7] | 尚建丽;张浩;董莉;赵喜龙.双壳微纳米相变胶囊制备影响因素的研究[J].材料研究学报,2015(2):135-142. |
| [8] | 尚建丽;王思;董莉.PAR/POL/SOD复合微胶囊的制备及热湿性能研究[J].功能材料,2013(8):1141-1144. |
| [9] | SHANG Jian-li;LI Qiao-ming;WANG Zheng-jun;ZHAO Peng.Preparing and Studying of Phase Change Energy Storage Materials[J].上海交通大学学报（英文版）,2010(6):668-670. |
| [10] | 尚建丽;张浩;熊磊;麻向龙.基于均匀设计优化制备癸酸-棕榈酸/SiO2复合相变材料[J].材料工程,2015(9):94-102. |
| [11] | 张浩;何兆芳;黄新杰.Cu-Ce/TiO2的制备及其在室内甲醛气体中的光催化性能[J].稀土,2014(6):72-78. |
| [12] | 张浩;黄凯;黄新杰.Ce-TiO2光催化涂料降解甲醛溶液的性能研究及预测模型[J].稀土,2014(4):18-24. |
| [13] | 李魁山;张旭;韩星;朱东明.建筑材料等温吸放湿曲线性能实验研究[J].建筑材料学报,2009(1):81-84. |
| [14] | 黄子硕;于航;张美玲.建筑调湿材料吸放湿速度变化规律[J].同济大学学报（自然科学版）,2014(2):310-314. |
| [15] | 于永生;井强山;宋方方.十六醇/十六酸/十二酸三元复合相变体系研究[J].建筑材料学报,2013(1):97-101. |
| [16] | Yao Jun Zhang;Qian Chai.Alkali-activated blast furnace slag-based nanomaterial as a novel catalyst for synthesis of hydrogen fuel[J].Fuel,2014Jan.(Jan.):84-87. |
| [17] | Chen, S.;Wang, R..Surface area, pore size distribution and microstructure of vacuum getter[J].Vacuum: Technology Applications & Ion Physics: The International Journal & Abstracting Service for Vacuum Science & Technology,201110(10):909-914. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%