文章摘要
一种基于Diels-Alder可逆共价键自修复聚合物的合成及性能
Preparation and Properties of Thermally Reversible Self-Healing Polymer Based on Diels-Alder Reversible Covalent Bond
  
DOI:10.16865/j.cnki.1000-7555.2017.12.002
中文关键词: 自修复  Diels-Alder反应  聚醚胺  交联聚合物
英文关键词: self-healing  Diels-Alder reaction  polyether amine  cross-linked polymer
基金项目:国家自然科学基金资助项目(51103078)
作者单位
赵凯锋, 张士玉, 王晓飞, 马小越, 魏燕彦 青岛科技大学高分子科学与工程学院 橡塑材料与工程教育部重点实验室山东 青岛 266042 
摘要点击次数: 184
全文下载次数: 
中文摘要:
      以环氧氯丙烷和糠醇为原料,合成中间体糠基缩水甘油醚(FGE)。再以聚醚胺D2000与FGE反应,生成端呋喃基树脂FGE-D2000。最后加入交联剂4, 4’-二苯甲烷双马来酰亚胺(BDM),利用酰亚胺环和呋喃环发生Diels-Alder (DA)反应,得到交联聚合物FGE-D2000-BDM。采用红外光谱、核磁共振、差示扫描量热分析、热重分析、光学显微镜、电子万能材料试验机等测试手段对实验结果进行表征。结果表明,FGE-D2000-BDM在50~150 ℃内为热稳定的可逆自修复系统,凝胶含量为87.49%,Tg为-54.50 ℃,r-DA反应的起始温度为69.59 ℃,最佳DA反应温度为70 ℃,80 ℃修复12 h后自修复效率达到71.04%。
英文摘要:
      Epichlorohydrin and furfuryl alcohol were used as raw materials to synthesize the intermediates furfuryl glycidyl ether (FGE). Then, polyether amine D2000 reacted with FGE generating end furanyl resin FGE-D2000. Finally, 4, 4′-diphenylmethane bismaleimide (BDM) was added as crosslinking agent, along with the Diels-Alder (DA) reaction between imide ring and furan ring, in order to obtain a crosslinked polymer FGE-D2000-BDM. And the experimental results were characterized by FT-IR, 1H-NMR, DSC, TG, optical microscope, electronic universal material testing machine and other testing means. The results show that FGE-D2000-BDM owns a thermally stable reversible self-healing system at 50~150 ℃. The gel content of FGE-D2000-BDM is 87.49%. The glass-transition temperature is -54.50 ℃, and the initial temperature of the r-DA reaction is 69.59 ℃, and the best curing temperature is 70 ℃. And the self-healing efficiency of FGE-D2000-BDM is achieved 71.04% after 12 h at 80 ℃.
查看全文   查看/发表评论  下载PDF阅读器
关闭