以三水乙酸钠-尿素共熔物、纳米蒙脱土为原料,采用熔融插层法制备低温水合盐复合相变储能材料,用XRD、SEM、FTIR和DSC测试了材料结构、结晶机理、成核性、过冷度、热性能及稳定性.研究结果表明,三水乙酸钠-尿素复合盐使纳米蒙脱土片层呈剥离形态,其片层相互搭建构成腔体包容复合盐;纳米蒙脱土作为成核剂使复合盐结晶温度提高18℃,晶粒尺寸减小;当纳米蒙脱土质量分数为33.3％时,所制备材料的过冷度比未加纳米蒙脱土时降低19 ℃,相变温度为32℃,熔融焓为132.0 kJ/kg,纳米蒙脱土降低了复合盐的过冷度,避免了相变分层,赋予了复合盐成型性.
参考文献
| [1] | 张仁远.相变材料与相变储能技术[M].北京:科学出版社,2009:1. |
| [2] | Oró E;De Gracia A;Castell A et al.Review on phase change materials (PCMs) for cold thermal energy storage applications[J].Applied Energy,2012,99:513. |
| [3] | Belen Zalba;Jose M Marin;Luisa F. Cabeza;Harald Mehling .Review on thermal energy storage with phase change: materials, heat transfer analysis and applications[J].Applied thermal engineering: Design, processes, equipment, economics,2003(3):251-283. |
| [4] | Prabhu P A;Shinde N N;Patil P S .Review of phase change materials for thermal energy storage applications[J].Int J Eng Appl,2012,2(3):871. |
| [5] | 芦大杰,胡芃,赵斌斌,刘阳,陈则韶.三水合醋酸钠纳米成核剂的性能研究[J].工程热物理学报,2012(08):1279-1282. |
| [6] | 郝敏,李忠辉,吴秋芳,高玮,马新胜.相变材料封装技术的研究进展[J].材料导报,2014(09):98-103. |
| [7] | 周艳,张金辉,王艳,路海滨,李庆领.纳米金属粒子强化正十八烷相变传热性能的实验研究[J].材料导报,2013(12):8-11. |
| [8] | Khodadadi J M;Fan L;Babaei H .Thermal conductivity enhancement of nanostructure-based colloidal suspensions utilized as phase change materials for thermal energy storage:A review[J].RENEWABLE & SUSTAINABLE ENERGY REVIEWS,2013,24:418. |
| [9] | Varadwaj G B B;Parida K M .Montmorillonite supported metal nanoparticles:An update on syntheses and applica tions[J].RSC Adv,2013,33(3):13583. |
| [10] | 李树岗,王坤燕,叶芳胜,韩晓辉,张龙.环氧树脂/蒙脱土纳米复合材料的制备与剥离机理研究进展[J].中国塑料,2007(11):11-16. |
| [11] | 王小鹏,张毅,沈振球,李东旭.熔融插层法制备蒙脱石基石蜡复合相变储能材料[J].硅酸盐学报,2011(04):624-629. |
| [12] | 李忠,于少明,杭国培,伍广.插层复合法制备纳米复合相变贮能材料[J].化学世界,2005(11):641-643. |
| [13] | Xiaoming Fang;Zhengguo Zhang;Zhonghua Chen .Study on preparation of montmorillonite-based composite phase change materials and their applications in thermal storage building materials[J].Energy conversion & management,2008(4):718-723. |
| [14] | Sarier, N.;Onder, E.;Ozay, S.;Ozkilic, Y. .Preparation of phase change material-montmorillonite composites suitable for thermal energy storage[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2011(1/2):39-46. |
| [15] | 周盾白,周子鹄,贾德民.石蜡/蒙脱土纳米复合相变材料的制备及分析[J].化工新型材料,2009(07):108-110. |
| [16] | Kim, B;Lee, SH;Lee, D;Ha, B;Park, J;Char, K .Crystallization kinetics of maleated polypropylene/clay hybrids[J].Industrial & Engineering Chemistry Research,2004(19):6082-6089. |
| [17] | Svoboda P.;Zeng CC.;Wang H.;Lee LJ.;Tomasko DL. .Morphology and mechanical properties of polypropylene/organoclay nanocomposites[J].Journal of Applied Polymer Science,2002(7):1562-1570. |
| [18] | T.G. Gopakumar;J.A. Lee;M. Kontopoulou;J.S. Parent .Influence of clay exfoliation on the physical properties of montmorillonite/polyethylene composites[J].Polymer: The International Journal for the Science and Technology of Polymers,2002(20):5483-5491. |
| [19] | Nie X;Adalati A;Du J et al.Preparation of amphoteric nanocomposite hydrogels based on exfoliation of montmorillonite via in-situ intercalative polymerization of hydrophilic cationic and anionic monomers[J].Applied Clay Seience,2014,97:132. |
| [20] | 刘奕燎 .聚合物/蒙脱土纳米复合材料拉伸后的结晶研究[D].浙江大学,2010. |
| [21] | 马继盛,漆宗能,李革,胡友良.聚丙烯/蒙脱土纳米复合材料的等温结晶研究[J].高分子学报,2001(05):589-593. |
| [22] | 余凤湄,赵秀丽,王建华,刘天利,王宪忠.聚乳酸/有机蒙脱土纳米复合材料的结晶性能研究[J].化工新型材料,2010(04):94-96,113. |
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%