Processing dependent morphology, interfacial interaction and shear behavior of short carbon fiber reinforced PEEK

Li, Tie Qi; Zhang, Ming Qiu; Zeng, Han

doi:10.1016/s1359-835x(01)00027-6

Cited by 8 publications

(1 citation statement)

References 29 publications

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“…Li et al . studied the influence of processing conditions on the morphology, interfacial interaction, and shear modulus of short‐carbon‐fiber reinforced PEEK composites.…”

Section: Introductionmentioning

confidence: 99%

Fracture toughness of carbon fiber/polyether ether ketone composites manufactured by autoclave and laser‐assisted automated tape placement

Ray

Comer

Lyons

et al. 2014

J of Applied Polymer Sci

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A comparative study is presented on the fracture toughness of carbon fiber/PEEK composites manufactured by autoclave and laser-assisted automated tape placement (LATP). Formation of a good inter-laminar bond is always a concern in ATP due to the short time available for intimate contact development and polymer healing, yet our double cantilever beam (DCB) tests reveal 60-80% higher Mode I fracture toughness for the LATP processed specimens than for the autoclave processed specimens. This magnitude of difference was unexpected, so specimens were further examined via differential scanning calorimetry, dynamic mechanical analysis, nano-indentation, and scanning electron microscopy. The results indicate that the LATP process has been very effective in heating and consolidating the surface of plies, creating an excellent bond. However, it has been less effective in processing the interior of plies, where a low crystallinity and poor fiber-matrix bonding are evident. The higher fracture toughness of the LATP processed specimens is also not solely due to a better bond, but is partially due to significant plastic deformation in the interior of plies during the DCB test. The findings indicate there is still considerable scope for optimizing the laser-assisted ATP process, before the optimum balance between strength and toughness is achieved at favorable lay-down speeds.

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“…Li et al . studied the influence of processing conditions on the morphology, interfacial interaction, and shear modulus of short‐carbon‐fiber reinforced PEEK composites.…”

Section: Introductionmentioning

confidence: 99%

Fracture toughness of carbon fiber/polyether ether ketone composites manufactured by autoclave and laser‐assisted automated tape placement

Ray

Comer

Lyons

et al. 2014

J of Applied Polymer Sci

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Influence of new thermoplastic sizing agents on the mechanical behavior of poly(ether ketone ketone)/carbon fiber composites

Giraud

Franceschi

Pérez

et al. 2015

J of Applied Polymer Sci

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In this study, unidirectional poly(ether ether ketone)/carbon fiber (CF) composite sheets were elaborated with unsized, epoxy-sized, and thermoplastic-sized CFs by hot-press molding. The thermoplastic sizings that we used were poly(ether imide) (PEI) and poly(ether ketone ketone) oligomer aqueous dispersions. Scanning electron microscopy observation of the composites freeze fractures showed that unlike unsized or epoxy-sized CFs, the thermoplastic sizings improved the interaction between the fibers and the matrix. A comparative study of the mechanical relaxations by dynamic mechanical analysis was carried out on the different composites before and after immersion in kerosene. At low temperature, the PEI sizing had a significant influence on the b relaxation, particularly after kerosene immersion. The thermoplastic sizings did not modify the glass-transition temperature but improved the kerosene resistance on the composites.

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Hygrothermal effects on the shear properties of carbon fiber/epoxy composites

2006

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Processing dependent morphology, interfacial interaction and shear behavior of short carbon fiber reinforced PEEK

Cited by 8 publications

References 29 publications

Fracture toughness of carbon fiber/polyether ether ketone composites manufactured by autoclave and laser‐assisted automated tape placement

Fracture toughness of carbon fiber/polyether ether ketone composites manufactured by autoclave and laser‐assisted automated tape placement

Influence of new thermoplastic sizing agents on the mechanical behavior of poly(ether ketone ketone)/carbon fiber composites

Hygrothermal effects on the shear properties of carbon fiber/epoxy composites

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