%0 Journal Article
%T 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<br>Preparation and thermal properties of WF/HDPE composites filled with microcapsules modified by polyethylene glycol
%A 郭玺
%A 曹金珍
%A 王佳敏
%J 复合材料学报
%D 2017
%R 10.13801/j.cnki.fhclxb.20160919.005
%X 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）
%K 相变微胶囊
%K 蓄热材料
%K 聚乙二醇改性
%K 复合材料
%K 热性能&lt
%K br&gt
%K phase change microcapsulates
%K heat storage material
%K polyethylene glycol modification
%K composites
%K thermal properties
%U http://fhclxb.buaa.edu.cn/CN/abstract/abstract13696.shtml