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author:

Sun, Bin (Sun, Bin.) [1] | Mubarak, Suhail (Mubarak, Suhail.) [2] | Zhang, Guocun (Zhang, Guocun.) [3] | Peng, Kangming (Peng, Kangming.) [4] | Hu, Xueling (Hu, Xueling.) [5] | Zhang, Qia (Zhang, Qia.) [6] | Wu, Lixin (Wu, Lixin.) [7] | Wang, Jianlei (Wang, Jianlei.) [8]

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EI

Abstract:

Additive manufacturing of carbon-fiber-reinforced polymer (CFRP) has been widely used in many fields. However, issues such as inconsistent fiber orientation distribution and void formation during the layer stacking process have hindered the further optimization of the composite material’s performance. This study aimed to address these challenges by conducting a comprehensive investigation into the influence of carbon fiber content and printing parameters on the micro-morphology, thermal properties, and mechanical properties of PA6-CF composites. Additionally, a heat treatment process was proposed to enhance the interlayer bonding and tensile properties of the printed composites in the printing direction. The experimental results demonstrate that the PA6-CF25 composite achieved the highest tensile strength of 163 MPa under optimal heat treatment conditions: 120 °C for 7.5 h. This corresponds to a significant tensile strength enhancement of 406% compared to the unreinforced composites, which represents the highest reported improvement in the current field of CFRP-fused deposition 3D printing. Additionally, we have innovatively developed a single-layer monofilament CF-OD model to quantitatively analyze the influence of fiber orientation distribution on the properties of the composite material. Under specific heat treatment conditions, the sample exhibits an average orientation angle μ of 0.43 and an orientation angle variance of 8.02. The peak frequency of fiber orientation closely aligns with 0°, which corresponds to the printing direction. Finally, the study explored the lightweight applications of the composite material, showcasing the impressive specific energy absorption (SEA) value of 17,800 J/kg when implementing 3D-printed PA6-CF composites as fillers in automobile crash boxes. © 2023 by the authors.

Keyword:

3D modeling 3D printing Accidents Carbon fiber reinforced plastics Deposition Fibers Heat treatment Honeycomb structures Specific heat Tensile strength

Community:

  • [ 1 ] [Sun, Bin]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 2 ] [Sun, Bin]University of Chinese Academy of Sciences, Beijing; 100049, China
  • [ 3 ] [Sun, Bin]CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo; 315830, China
  • [ 4 ] [Mubarak, Suhail]State Key Laboratory of Fluid Power & Mechatronic System, Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Center for X-Mechanics, Department of Engineering Mechanics, Zhejiang University, Hangzhou; 310027, China
  • [ 5 ] [Zhang, Guocun]School of Automotive Engineering, Dalian University of Technology, Dalian; 116024, China
  • [ 6 ] [Peng, Kangming]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 7 ] [Peng, Kangming]College of Chemistry and Materials Science, Fujian Normal University, Fuzhou; 350007, China
  • [ 8 ] [Hu, Xueling]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 9 ] [Hu, Xueling]College of Chemistry, Fuzhou University, Fuzhou; 350116, China
  • [ 10 ] [Zhang, Qia]Chunhui Technology Group Co., Ltd, Fuzhou; 350019, China
  • [ 11 ] [Wu, Lixin]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 12 ] [Wu, Lixin]University of Chinese Academy of Sciences, Beijing; 100049, China
  • [ 13 ] [Wang, Jianlei]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 14 ] [Wang, Jianlei]University of Chinese Academy of Sciences, Beijing; 100049, China
  • [ 15 ] [Wang, Jianlei]CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo; 315830, China

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Source :

Polymers

Year: 2023

Issue: 18

Volume: 15

4 . 7

JCR@2023

4 . 7 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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