|
|
- 2017
聚乙二醇改性相变微胶囊-木粉/高密度聚乙烯复合材料的制备与热性能
|
Abstract:
通过原位聚合法制备了以正十二烷醇（DA）为芯材，密胺树脂（MF）或聚乙二醇改性密胺树脂（PMF）为壁材的相变微胶囊DA@MF和DA@PMF，并将相变微胶囊添加到木粉/高密度聚乙烯复合材料（WF/HDPE）中，制备了具有相变蓄热能力的DA@MF-WF/HDPE和 DA@PMF-WF/HDPE复合材料。采用DSC、TG和红外热成像等方法对DA@MF、DA@PMF 和相变微胶囊-WF/HDPE的热性能进行了分析与表征。测试结果表明，DA@PMF的结晶和熔融热焓值分别提高了35.0 J/g和21.5 J/g，快速失重温度提高了19.9℃；蓄热能力测试表明，DA@PMF成功添加至WF/HDPE中，且在制备过程中损失较小；DA@PMF-WF/HDPE的相变温度（27.2、11.3℃）、相变潜热（31.6、20.3 J/g）和热稳定性（256.9℃，DA开始失重）等性能表明其具备成为相变蓄热材料的潜力。 The phase change microcapsulates containing dodecanol(DA) were fabricated using melamine-formaldehyde (MF) or polyethylene glycol 200 modified melamine-formaldehyde (PMF) resin as the shell by in situ polymerization. Wood flour/high-density polyethylene (WF/HDPE) composites filled with MF shelled microcapsules (DA@MF) or PMF shelled microcapsules (DA@PMF) were prepared, respectively. The synthesized DA@PMF and DA@PMF filled WF/HDPE composites (DA@MF-WF/HDPE, DA@PMF -WF/HDPE) were characterized by infrared thermal imaging, DSC and TG analysis. The results show that the cooling and melting enthalpy of DA@PMF is increased by 35 J/g and 21.5 J/g, respectively, and the rapid mass loss temperature is delayed to 19.9℃; The thermal properties of DA@PMF-WF/HDPE indicate that DA@PMF are successfully incorporated into the WF/HDPE composites and there is little damage during the preparation process; DA@PMF -WF/HDPE are potential thermal energy storage materials based on their appropriate phase change temperature (27.2, 11.3℃), outstanding thermal enthalpy (31.6, 20.3 J/g) and perfect thermal stability (rapid mass loss at 256.9℃). 中央高校基本科研业务费专项资金（2015ZCQ-CL-01）
| [1] | 张建国, 谷立静. 我国绿色建筑发展现状: 挑战及政策建议[J]. 中国能源, 2013, 34(12): 19-24. ZHANG Jianguo, GU Lijing. The current situation of the development of green building in China: Challenges and policy recommendations[J]. China Energy, 2013, 34(12): 19-24 (in Chinese). |
| [2] | CHEN Fang, MICHAEL Wolcott. Polyethylene/paraffin binary composites for phase change material energy storage in building: A morphology, thermal properties, and paraffin leakage study[J]. Solar Energy Materials and Solar Cells, 2015, 137: 79-85. |
| [3] | CEMIL Alkan, AHMET Sari, ALIKARAPEKLI Orhan Uzun. Preparation, characterization, and thermal properties of microencapsulated phase change material for thermal energy storage[J]. Solar Energy Materials and Solar Cells, 2009, 93(1): 143-147. |
| [4] | BAYéS-GARCíA L, VENTOLA L, CORDOBILLA R, et al. Phase change materials (PCM) microcapsules with different shell compositions: Preparation, characterization and thermal stability[J]. Solar Energy Materials and Solar Cells, 2010, 94(7): 1235-1240. |
| [5] | TRIGUI A, KARKRI M, BOUDAYA C, et al. Development and characterization of composite phase change material: Thermal conductivity and latent heat thermal energy storage[J]. Composites Part B: Engineering, 2013, 49(25): 22-35. |
| [6] | WANG Zhangyuan, QIU Feng, YANG Wansheng, et al. Applications of solar water heating system with phase change material[J]. Renewable and Sustainable Energy Reviews, 2015(52): 645-652. |
| [7] | SUN Xiaoqin, ZHANG Quan, MEDINA Mario, et al. Performance of a free-air cooling system for telecommunications base stations using phase change materials (PCMs): In-situ tests[J]. Applied Energy, 2015(147): 325-334. |
| [8] | RAMAKRISHNAN S, SANJAYAN J, WANG X, et al. A novel paraffin/expanded perlite composite phase change material for prevention of PCM leakage in cementitious composites[J]. Applied Energy, 2015, 157: 85-94. |
| [9] | EFIMOVA A, PINNAU S, MISCHKE M, et al. Development of salt hydrate eutectics as latent heat storage for air conditioning and cooling[J]. Thermochimica Acta, 2014, 575: 276-278. |
| [10] | 郭玺, 曹金珍, 陈玉.聚乙二醇改性相变微胶囊制备Micro PCMs-WF/HDPE 复合材料物理力学性能[J]. 复合材料学报, 2016, 33(12): 2725-2731. GUO Xi, CAO Jinzhen, CHEN Yu. Physical and mechanical properties of WF/HDPE composites filled with micro PCMs modified by polyethylene glycol[J]. Acta Materiae Compositae Sinica, 2016, 33(12): 2725-2731 (in Chinese). |
| [11] | CUI Hongzhi, LIAO Wenyu, MI Xuming, et al. Study on functional and mechanical properties of cement mortar with graphite-modified microencapsulated phase-change materials[J]. Energy and Buildings, 2015, 105: 273-284. |
| [12] | 张兴祥, 王馨, 吴文健.相变材料胶囊制备与应用[M]. 北京: 化学工业出版社, 2009: 47. ZHANG Xingxiang, WANG Xin, WU Wenjian. Preparation and application of microencapsulated phasechange materials[M]. Beijng: Chemical Industry Press, 2009: 47 (in Chinese). |
| [13] | SU Junfeng, WANG Shengbao, ZHANG Yunyi, et al. Physicochemical properties and mechanical characters of methanol-modified melamine-formaldehyde (MMF) shell micro PCMs containing paraffin[J]. Colloid and Polymer Science, 2011, 289(2): 111-119. |
| [14] | 唐立生, 刘文波. 聚乙二醇改性三聚氰胺甲醛树脂对汽车空气滤纸性能的影响[J]. 中国造纸, 2011, 30(3): 17-21. TANG Lisheng, LIU Wenbo. Influence of melamine formaldehyde resin modified with polyethylene glycol on performance of automobile air filter paper[J]. Transactions of China Pulp and Paper, 2011, 30(3): 17-21 (in Chinese). |
| [15] | 马天信. 聚乙二醇对三聚氰胺甲醛树脂的改性研究[J]. 粘接, 1999, 20(2): 23-25. MA Tianxin. Research of polyethylene glycol modifying melamine-formaldehyde resin[J]. Adhesion in China, 1999, 20(2): 23-25 (in Chinese). |
| [16] | GUO X, CAO J, PENG Y, et al. Incorporation of micro-encapsulated dodecanol into wood flour/high-density polyethylene composite as a phase change material for thermal energy storage[J]. Materials & Design, 2016, 89: 1325-1334. |
| [17] | 叶晓江, 陈焕新, 周朝霞. 热舒适温度与建筑节能[J]. 建筑节能, 2008 (9): 63-65. YE Xiaojiang, CHEN Huanxin, ZHOU Zhaoxia. Thermal comfort temperature and building energy conservation[J]. Building Energy Efficiency, 2008(9): 63-65 (in Chinese). |
| [18] | 李亚敏. 改性三聚氰胺-甲醛树脂微胶囊的制备与表征[D]. 西安: 西北大学, 2010. LI Yamin. Preparation and characterization of modifying melamine-formaldehyde resin microcapsules[D]. Xi'an: Northwest University, 2010 (in Chinese). |
