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Review of the past and recent developments in functionalization of graphene derivatives for reinforcement of polypropylene nanocomposites
Polymer Composites ( IF 4.8 ) Pub Date : 2020-12-23 , DOI: 10.1002/pc.25922 Nur Hidayah Md Said 1 , Wei‐Wen Liu 1 , Cheng‐Seong Khe 2 , Chin‐Wei Lai 3 , Nik Noriman Zulkepli 4 , Azizan Aziz 5
Polymer Composites ( IF 4.8 ) Pub Date : 2020-12-23 , DOI: 10.1002/pc.25922 Nur Hidayah Md Said 1 , Wei‐Wen Liu 1 , Cheng‐Seong Khe 2 , Chin‐Wei Lai 3 , Nik Noriman Zulkepli 4 , Azizan Aziz 5
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Graphene has become the promising reinforcing candidate for improvement of polymer composites. However, graphene easily stacks into piles due to the presence of van der Waals forces between graphene layers and make it tremendously hard to be dispersed homogeneously in different polar polymer matrix. For years, some dispersion methods, such as chemical functionalization, melt mixing, solution mixing, in situ polymerization, to enhance the dispersion of nanofillers in polymer matrix have been demonstrated. Therefore, several functionalization methods of graphene, synthesis of composites approaches, characterizations techniques of graphene‐polypropylene composites are highlighted in this comprehensive review. This review also reveals that the addition of very low amount of nanofiller able to enhance the mechanical properties of composites considerably. With this review, a clear direction is beneficial for the researchers to solve the dispersion issues and to enhance interfacial adhesion to produce better mechanical properties of composites. The application of nanocomposite, an outlook of the challenges and different approaches that can practically useful to tackle important issues are also presented.
中文翻译：
石墨烯衍生物功能化用于增强聚丙烯纳米复合材料的过去和最近的发展综述
石墨烯已成为改善聚合物复合材料的有希望的增强候选物。然而，由于在石墨烯层之间存在范德华力，石墨烯容易堆叠成堆，并且使其很难均匀地分散在不同的极性聚合物基质中。多年来，已经证明了一些分散方法，例如化学官能化，熔融混合，溶液混合，原位聚合，以增强纳米填料在聚合物基质中的分散性。因此，本综述全面介绍了石墨烯的几种功能化方法，复合材料的合成方法，石墨烯-聚丙烯复合材料的表征技术。该评论还揭示了添加非常少量的纳米填料能够显着增强复合材料的机械性能。有了这篇综述，一个明确的方向对于研究人员解决分散问题和增强界面粘合性以产生更好的复合材料机械性能是有益的。还介绍了纳米复合材料的应用，面临的挑战以及可以实际用于解决重要问题的不同方法。
更新日期：2020-12-23
中文翻译：
石墨烯衍生物功能化用于增强聚丙烯纳米复合材料的过去和最近的发展综述
石墨烯已成为改善聚合物复合材料的有希望的增强候选物。然而，由于在石墨烯层之间存在范德华力，石墨烯容易堆叠成堆，并且使其很难均匀地分散在不同的极性聚合物基质中。多年来，已经证明了一些分散方法，例如化学官能化，熔融混合，溶液混合，原位聚合，以增强纳米填料在聚合物基质中的分散性。因此，本综述全面介绍了石墨烯的几种功能化方法，复合材料的合成方法，石墨烯-聚丙烯复合材料的表征技术。该评论还揭示了添加非常少量的纳米填料能够显着增强复合材料的机械性能。有了这篇综述，一个明确的方向对于研究人员解决分散问题和增强界面粘合性以产生更好的复合材料机械性能是有益的。还介绍了纳米复合材料的应用，面临的挑战以及可以实际用于解决重要问题的不同方法。
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