Mat Yazik Muhamad Hasfanizam, Sultan Mohamed Thariq Hameed, Jawaid Mohammad, Abu Talib Abd Rahim, Mazlan Norkhairunnisa, Md Shah Ain Umaira, Safri Syafiqah Nur Azrie
Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor Darul Ehsan, Malaysia.
Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, Serdang 43400 UPM, Selangor Darul Ehsan, Malaysia.
Polymers (Basel). 2021 Feb 25;13(5):700. doi: 10.3390/polym13050700.
The aim of the present study has been to evaluate the effect of hybridization of montmorillonite (MMT) and multi-walled carbon nanotubes (MWCNT) on the thermal and viscoelastic properties of shape memory epoxy polymer (SMEP) nanocomposites. In this study, ultra-sonication was utilized to disperse 1%, 3%, and 5% MMT in combination with 0.5%, 1%, and 1.5% MWCNT into the epoxy system. The fabricated SMEP hybrid nanocomposites were characterized via differential scanning calorimetry, dynamic mechanical analysis, and thermogravimetric analysis. The storage modulus (E'), loss modulus (E"), tan δ, decomposition temperature, and decomposition rate, varied upon the addition of the fillers. Tan δ indicated a reduction of glass transition temperature () for all the hybrid SMEP nanocomposites. 3% MMT/1% MWCNT displayed best overall performance compared to other hybrid filler concentrations and indicated a better mechanical property compared to neat SMEP. These findings open a way to develop novel high-performance composites for various potential applications, such as morphing structures and actuators, as well as biomedical devices.
本研究的目的是评估蒙脱石（MMT）与多壁碳纳米管（MWCNT）杂化对形状记忆环氧聚合物（SMEP）纳米复合材料热性能和粘弹性的影响。在本研究中，利用超声处理将1%、3%和5%的MMT与0.5%、1%和1.5%的MWCNT组合分散到环氧体系中。通过差示扫描量热法、动态力学分析和热重分析对制备的SMEP杂化纳米复合材料进行表征。储能模量（E'）、损耗模量（E"）、损耗角正切（tan δ）、分解温度和分解速率随填料的添加而变化。tan δ表明所有杂化SMEP纳米复合材料的玻璃化转变温度（）降低。与其他杂化填料浓度相比，3%MMT/1%MWCNT表现出最佳的整体性能，并且与纯SMEP相比具有更好的机械性能。这些发现为开发用于各种潜在应用的新型高性能复合材料开辟了道路，如变形结构和致动器以及生物医学设备。
