纳米改性连续纤维增强热塑性树脂复合材料及其力学性能研究进展

《复合材料学报》优先在线发表论文。

摘  要：连续纤维增强热塑性树脂复合材料（CFRTP）具有易加工、可回收、力学性能优异等特点，在航空航天、汽车等领域的应用前景良好。随着纳米技术的发展，研究者发现利用纳米材料改性CFRTP可显著提升其性能。本文对纳米材料改性CFRTP领域的最新研究进展进行了综述，首先对CFRTP改性中常用的纳米材料（如碳纳米管、石墨烯以及无机纳米颗粒）和主要的改性方法（包括树脂基体中直接添加纳米填料和利用纳米材料对增强纤维表面进行修饰）进行了介绍，在此基础上总结并讨论了纳米改性对CFRTP力学性能（包括界面结合性能、拉伸性能、动态力学性能以及冲击性能）的影响，最后对纳米材料改性CFRTP的发展方向进行了展望。

关键字：纳米材料；纤维；热塑性树脂；复合材料；力学性能

Abstract: Fiber reinforced thermoplastic composites (CFRTPs) are highly attractive in the fields of aerospace, automobile, and etc. due to their ease of fabrication, good recyclability and excellent mechanical properties. With the development of nanotechnology, it was found that nanomaterials, such as carbon nanotube, graphene and inorganic nanoparticles are effective to enhance the mechanical properties of CFRTPs. The recent development in the fabrication of nano-modified CFRTPs and their mechanical properties are reviewed in this paper. The two techniques for nano-modification of CFRTPs, including directly dispersing nanoparticles into thermoplastic matrix and modification of fibers with nanoparticles, were introduced. The effects of nanoparticle introduction on the mechanical properties including interfacial bonding properties, tensile/flexure properties, dynamic mechanical properties and impact properties of CFRTPs were analyzed. Finally, the challenges and outlook for nano-modification of CFRTPs were outlined.

Keywords: nanoparticles; continuous fiber; thermoplastic materials; composites; mechanical properties

作者：孙正等，重庆大学 航空航天学院，重庆

通讯作者：李元庆等，重庆大学 航空航天学院，重庆

全文详见中国知网学术期刊优先数字出版。