为了获得适用于建筑领域的相变材料和相变温度,选用月桂酸(LA)和棕榈酸(PA)共混制备的二元低共熔脂肪酸(LA-PA)作为储能材料,废弃稻草和稻草灰提取的生物基SiO2(b-SiO2)粉末作为载体,采用熔融浸渗法制备了LA-PA/b-SiO2定形相变储能材料.采用FTIR、XRD、比表面测试、SEM、DSC、TGA对LA-PA/b-SiO2复合相变材料的结构与性能进行分析.结果表明:LA-PA和b-SiO2并不是简单的物理相互作用;LA-PA被束缚在b-SiO2多孔网络中,从而在固相变为液相时,相变材料不会泄露.通过XRD分析可得,随着b-SiO2含量的增加,LA-PA/b-SiO2复合相变材料的结晶度降低.由DSC和TGA分析可知,LA-PA/b-SiO2复合相变材料具有良好的相变性质和热稳定性,相变焓在67.36～146.0 J/g之间.
参考文献
| [1] | 杨化;毛健;冯杰.石蜡/SiO2复合相变材料的制备及性能测试[J].材料导报,2010(z1):278-280. |
| [2] | 王崇云;王维;冯利利;李国玲;田文怀;李星国.正二十烷与膨胀石墨共改性三水合醋酸钠相变材料储热性能[J].复合材料学报,2014(3):824-829. |
| [3] | Saffa Riffat;Blaise Mempouo;Wenbo Fang.Phase change material developments: a review[J].International journal of ambient energy,20153(3):102-115. |
| [4] | Mondal S.Phase change materials for smart textiles - An overview[J].Applied thermal engineering: Design, processes, equipment, economics,200811/12(11/12):1536-1550. |
| [5] | 邱美鸽;唐炳涛;张淑芬;贾超.异丙醇铝溶胶-凝胶掺杂的SiO2-Al2O3/PEG导热增强型定形相变储能材料[J].复合材料学报,2013(3):93-99. |
| [6] | 张东;周剑敏;吴科如;李宗津.颗粒型相变储能复合材料[J].复合材料学报,2004(5):103-109. |
| [7] | 席国喜;路宽.硬脂酸/埃洛石插层复合相变材料的制备及其性能研究[J].硅酸盐通报,2011(5):1155-1159,1167. |
| [8] | 席国喜;杨文洁.硬脂酸/改性硅藻土复合相变储能材料的制备及性能研究[J].材料导报,2009(16):45-47,50. |
| [9] | de Gracia, Alvaro;Cabeza, Luisa F..Phase change materials and thermal energy storage for buildings[J].Energy and buildings,2015Sep.(Sep.):414-419. |
| [10] | 蔡伟;孙志高;马鸿凯;焦丽君;张爱军.有机复合相变材料性能研究[J].化工新型材料,2015(8):87-89. |
| [11] | 郭静;张雨燕.新型复合相变材料研究新进展[J].材料导报,2013(13):67-70. |
| [12] | Qian, Tingting;Li, Jinhong;Ma, Hongwen;Yang, Jing.The preparation of a green shape-stabilized composite phase change material of polyethylene glycol/SiO2 with enhanced thermal performance based on oil shale ash via temperature-assisted sol-gel method[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2015:29-39. |
| [13] | Li, Min;Guo, Qiangang.The preparation of the hydrotalcite-based composite phase change material[J].Applied energy,2015Oct.15(Oct.15):207-212. |
| [14] | 施韬;孙伟;王倩楠.凹凸棒土吸附相变储能复合材料制备及其热物理性能表征[J].复合材料学报,2009(5):143-147. |
| [15] | 周建伟;张引沁;史磊;姜雪锋;刘畇.硬脂酸/MCM-41复合相变材料研究[J].现代化工,2011(12):45-47,49. |
| [16] | Shiyu Yu;Xiaodong Wang;Dezhen Wu.Microencapsulation of n-octadecane phase change material with calcium carbonate shell for enhancement of thermal conductivity and serving durability: Synthesis, microstructure, and performance evaluation[J].Applied energy,2014Feb.(Feb.):632-643. |
| [17] | 陈嘉杰;徐涛;方晓明;高学农;张正国.膨胀石墨基十二烷复合相变蓄冷材料的性能研究[J].工程热物理学报,2015(6):1307-1310. |
| [18] | Zhi Chen;Lei Cao;Feng Shan;Guiyin Fang.Preparation and characteristics of microencapsulated stearic acid as composite thermal energy storage material in buildings[J].Energy and buildings,2013Jul.(Jul.):469-474. |
| [19] | 潘明珠;周晓燕;陈成.纳米二氧化硅在稻秸上的形态分布及制备工艺[J].农业工程学报,2012(2):250-255. |
| [20] | 唐晓红;李保军;李成未.稻草和稻草灰合成中孔分子筛MCM-41及性能分析[J].林产化学与工业,2012(4):72-76. |
| [21] | 郭静;相恒学;徐德增;王倩倩.硬脂酸-月桂酸二元复合相变材料[J].大连工业大学学报,2012(1):60-63. |
| [22] | Yibing Cai;Huizhen Ke;Ju Dong;Qufu Wei;Jiulong Lin;Yong Zhao;Lei Song;Yuan Hu;Fenglin Huang;Weidong Gao;Hao Fong.Effects of nano-SiO_2 on morphology, thermal energy storage, thermal stability,and combustion properties of electrospun lauric acid/PET ultrafine composite fibers as form-stable phase change materials[J].Applied energy,20116(6):2106-2112. |
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