Impact behaviour of carbon fibre reinforced epoxy and non-isothermal cyclic butylene terephthalate composites manufactured by vacuum infusion

Agirregomezkorta, A.; Martínez, Alejandro Rosillo; Sánchez‐Soto, Miguel; Aretxaga, G.; Sarrionandia, M.; Aurrekoetxea, J.

doi:10.1016/j.compositesb.2012.01.091

Cited by 27 publications

(19 citation statements)

References 22 publications

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“…Taking a closer look, one can see a uniform interfiber distribution and a good microimpregnation in all composites. Good fiber impregnation is observed because the low viscosity of the molten CBT facilitates the penetration of the resin through the fabric and the impregnation of intra‐bundle fibers . Nevertheless, some intrabundle voids were detected which are in line with the calculated void contents of 0.5–1.5%.…”

Section: Resultssupporting

confidence: 62%

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Toughened carbon fiber fabric‐reinforced pCBT composites

Abt

Karger‐Kocsis²,

Sánchez‐Soto

2014

Polymer Composites

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Toughened carbon fiber-fabric reinforced polymerized cyclic butylene terephthalate (pCBT) composites were obtained by chemical modification of cyclic butylene terephthalate (CBT) with small amounts of epoxy resin and isocyanates as chain extenders. Homogeneous CBT/epoxy and CBT/isocyanate blends were prepared by melt blending the components in a lab-scale batch mixer at low temperatures and high shear rate. Melt blending was stopped before the ring-opening polymerization of CBT could start. The modified CBT was the starting material for carbon fiber fabric-reinforced pCBT composites (fiber content at about 65 wt%) which were prepared by ring-opening polymerization during compression molding using a simple powder prepreg method. Interlaminar shear strength, flexural strength, and failure strain of the chemically modified composites increased up to 60% with respect to unmodified pCBT composites. Nevertheless, the flexural moduli slightly decreased due to the toughening effect of the chain extender on the pCBT matrix. Drop weight impact tests revealed that the energy absorption of the modified composites was relatively higher as compared to unmodified pCBT composites. POLYM.

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Section: Resultssupporting

confidence: 62%

“…Mohd Ishak et al reported void contents of <1 and 4.7% for pressure‐controlled and for displacement‐controlled conditions, respectively. Using vacuum infusion, Agirregomezkorta et al obtained a void content of 3.3%.…”

Section: Resultsmentioning

confidence: 99%

Toughened carbon fiber fabric‐reinforced pCBT composites

Abt

Karger‐Kocsis²,

Sánchez‐Soto

2014

Polymer Composites

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show abstract

“…Additionally, environmental resistance and reformability, higher fracture toughness and impact strength make textile reinforced thermoplastics more attractive for future light weight solutions than their thermoset counterparts [1][2][3][4][5][6][7][8][9]. Applications of textile reinforced thermoplastics, however, have been restricted constantly due to the high production cost.…”

Section: Introductionmentioning

confidence: 97%

Simultaneous binding and toughening concept for textile reinforced pCBT composites: Manufacturing and flexural properties

Xie

Jiang

et al. 2013

Composite Structures

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“…The higher energy absorption capability of pCBT/CF was justified by its lower interlaminar shear strength (ILSS), as compared to the epoxy/CF composite. The epoxy-based composite matrix was characterized by a relatively brittle fracture, whereas the thermoplastic nature of the pCBT matrix induced delamination, which in turn improved the energy absorption capability and impact resistance 199 . Moreover, the authors used quasi-static and low energy impact tests and found that the ILSS is strain rate dependent for both composites.…”

Section: Composites With Carbon Fibresmentioning

confidence: 99%

“…194 As already mentioned earlier, Yu and co-workers 76 Agirregomezkorta and associates [198][199][200][201][202] used vacuum infusion to produce woven CF fabric-reinforced pCBT composites and compared them to equally produced epoxy-based composites. The pCBT-based composite presented a higher shrinkage and void content than the epoxy-based one due to the volumetric shrinkage associated with pCBT crystallisation.…”

Section: Composites With Carbon Fibresmentioning

confidence: 99%