Experimental investigation of process-structure effects on interfacial bonding strength of a short carbon fiber/polyamide composite fabricated by fused filament fabrication

2022 ◽  
Author(s):  
Moritz König ◽  
Jana Diekmann ◽  
Michael Lahres ◽  
Peter Middendorf
Keyword(s):  
Experimental Investigation ◽  
Carbon Fiber ◽  
Bonding Strength ◽  
Interfacial Bonding ◽  
Fused Filament Fabrication ◽  
Short Carbon Fiber ◽  
Interfacial Bonding Strength ◽  
Process Structure ◽  
Short Carbon

scholarly journals High-Performance Polyamide/Carbon Fiber Composites for Fused Filament Fabrication: Mechanical and Functional Performances

2021 ◽  
Author(s):  
Sithiprumnea Dul ◽  
Luca Fambri ◽  
Alessandro Pegoretti
Keyword(s):  
Carbon Fiber ◽  
Tensile Modulus ◽  
Gauge Factor ◽  
Carbon Fiber Composites ◽  
Fused Filament Fabrication ◽  
Resistance Change ◽  
Short Carbon Fiber ◽  
3D Printed ◽  
The Impact ◽  
Short Carbon

AbstractThis study is focused on the 3D printing by fused filament fabrication (FFF) process of short carbon-fiber-reinforced polyamide (PA) composites. In particular, the effect of short carbon fiber (CF) on the mechanical, electrical and piezoresistivity properties of 3D-printed polyamide (PA) composite parts has been analyzed. In comparison with neat PA, the results revealed that the carbon fibers effectively improved all assessed mechanical properties of PA/CF composites. In particular, in XY build orientation, PA/CF 3D-printed composites exhibited a tensile strength of 96 MPa and a tensile modulus of 7.9 GPa, with an increment of + 34 and + 147%, respectively, when compared to the neat PA. Interlayer strength of 3D-printed PA and PA/CF composites reaches similar values, in the range 26-28 MPa. The impact strength of 3D-printed XY parts was reduced by the presence of CF. However, the fracture toughness of PA/CF composite 3D-printed parts was slightly higher in comparison with that of neat PA. Electrical resistivity of PA/CF 3D-printed parts is gradually decreasing from 1.7 × 104 to 0.7 × 104 Ω cm in the temperature range from − 16 to 100 °C. The piezoresistivity tests revealed that an exponential resistance change occurs for both compression-molded and 3D-printed PA/CF samples once strained in tension. A gauge factor of 3D-printed parts of about 65 ± 5 was determined from cyclic strains in the elastic region.

A simple way to synthesize nano-scale stable epoxy emulsion for sizing CF/epoxy composites

2021 ◽  
Author(s):  
YiFan Chen ◽  
Lei Ding ◽  
Chao Cui ◽  
Zhengxiang Zhong ◽  
Li Liu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Epoxy Resin ◽  
Bonding Strength ◽  
Interfacial Bonding ◽  
Epoxy Composites ◽  
Simple Method ◽  
Nano Scale ◽  
Interfacial Bonding Strength ◽  
Nano Size ◽  
Epoxy Emulsion

A simple method to prepare emulsifier was proposed to form stable nano size emulsion as sizing agent to enhance the interfacial bonding strength between carbon fiber (CF) and epoxy resin....

Effect of Liquid Phase Impregnation Coatings on the Interfacial Bonding Strength of Carbon Fiber‐Reinforced Aluminum

2019 ◽  
Vol 21 (6) ◽  
pp. 1801350 ◽  
Author(s):  
Miguel Jiménez ◽  
Joshua Vetter ◽  
Rainer Gadow ◽  
Francisco J. Carrión ◽  
José Sanes ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Carbon Fiber ◽  
Bonding Strength ◽  
Interfacial Bonding ◽  
Fiber Reinforced ◽  
Interfacial Bonding Strength ◽  
Carbon Fiber Reinforced
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