Enhancement in mechanical properties of polyamide 66-carbon fiber composites containing graphene oxide-carbon nanotube hybrid nanofillers synthesized through in situ interfacial polymerization

被引：72
作者：
Cho, Beom-Gon [1 ]
Lee, Jung-Eun [2 ]
Hwang, Sang-Ha [2 ]
Han, Jong Hun [3 ]
Chae, Han Gi [2 ]
Park, Young-Bin [1 ]
机构：
[1] Ulsan Natl Inst Sci & Technol UNIST, Dept Mech Engn, UNIST Gil 50, Ulsan 44919, South Korea
[2] Ulsan Natl Inst Sci & Technol UNIST, Sch Mat Sci & Engn, UNIST Gil 50, Ulsan 44919, South Korea
[3] Chonnam Natl Univ, Sch Chem Engn, Yongbong Ro 33, Gwangju 61186, South Korea
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2020年 / 135卷 / 135期
基金：
新加坡国家研究基金会;
关键词：
Carbon fibres; Polymer-matrix composites (PMCs); Interface/interphase; Mechanical properties; PULL-OUT; CRYSTALLIZATION BEHAVIOR; SURFACE-PROPERTIES; SHEAR-STRENGTH; EPOXY; GROWTH; NANOCOMPOSITES; DEPOSITION; ADHESION; NYLON-6;
D O I：
10.1016/j.compositesa.2020.105938
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polyamide 66 (PA66)/carbon fiber (CF) composites with acyl chloride-functionalized GO (AGO) and carbon nanotubes (CNTs) as hybrid fillers were prepared through in situ interfacial polymerization. The optimal ratio of AGO to CNTs in terms of hydrogen bonding in the composites was determined to be 2:1 via thermochemical analyses of the as-prepared PA66/AGO-CNT composites. The optimized hybrid filler-reinforced PA66/CF composites showed improvements in the interfacial shear strength, tensile strengh and storage modulus by 160, 136 and 300%, respectively, compared to the control sample, as well as high damping properties due to an enhanced transcrystalline interphase. The superior interfacial bonding between CF and PA66 is attributed to hydrogen bonding, enhanced dispersion, and the mechanical interlocking effect induced by AGO-CNT hybrids, which lead to effective energy absorption and load transfer.
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页数：14
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