College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, People's Republic of China.
Nanotechnology. 2019 Jun 21;30(25):255706. doi: 10.1088/1361-6528/ab0868. Epub 2019 Apr 8.
In this work, we have synthesized a novel graphene oxide/trans-1,4-polyisoprene (GO/TPI) shape memory polymer (SMP) nanocomposite by adding GO (0.0-1.5 phr) to bulk TPI polymer to enhance its mechanical properties. We have studied and examined its mechanical, thermal and thermomechanical properties through systematic tests from microscale to macroscale. The shape memory properties and the effect of the GO content on the thermal and mechanical properties of the manufactured SMP nanocomposites were studied by differential scanning calorimetry, dynamic mechanical analysis, thermogravimetric analysis, thermal conductivity, and static tensile and mechanical as well as thermomechanical cyclic loading tests. The experimental results indicate that the SMP nanocomposite with 0.9 phr GO has superior thermal and mechanical properties compared to all other cases, and good shape memory was obtained in the GO/TPI nanocomposites.
在这项工作中，我们通过在块状 TPI 聚合物中添加 GO（0.0-1.5phr）来合成一种新型氧化石墨烯/顺-1,4-聚异戊二烯（GO/TPI）形状记忆聚合物（SMP）纳米复合材料，以增强其机械性能。我们通过从微观到宏观的系统测试研究和检查了其机械、热和热机械性能。通过差示扫描量热法、动态力学分析、热重分析、热导率以及静态拉伸和机械和热机械循环加载测试，研究了制造的 SMP 纳米复合材料的形状记忆性能以及 GO 含量对其热和机械性能的影响。实验结果表明，与所有其他情况相比，GO 含量为 0.9phr 的 SMP 纳米复合材料具有优异的热学和力学性能，并且在 GO/TPI 纳米复合材料中获得了良好的形状记忆性能。
