Simultaneous binding and ex situ toughening concept for textile reinforced pCBT composites: Influence of preforming binders on interlaminar fracture properties

Wu, Wangqing; Klunker, Florian; Xie, Liping; Jiang, Bingyan; Ziegmann, Gerhard

doi:10.1016/j.compositesa.2013.06.013

Cited by 23 publications

(14 citation statements)

References 20 publications

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“…Additionally, binders influence impregnation of preforms due to manipulated flow channels as well as the resulting viscosity of the matrix system. Their effects are also well documented and noticeable with respect to mechanical behavior [4][5][6][7][8][9][10][11][12]. For example, Wu et al [4] documented the improvements of flexural strain and flexural strength for polymerized cyclic butylene terephthalate composites.…”

Section: Introductionmentioning

confidence: 99%

“…Their effects are also well documented and noticeable with respect to mechanical behavior [4][5][6][7][8][9][10][11][12]. For example, Wu et al [4] documented the improvements of flexural strain and flexural strength for polymerized cyclic butylene terephthalate composites. Wang et al [5] demonstrated the increasing tensile strength of the modified laminates through thermoplastic films placed in the interlaminar regions.…”

Section: Introductionmentioning

confidence: 99%

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Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

Tonejc

Ebner

Fauster

et al. 2019

Advanced Manufacturing: Polymer & Composites Science

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Binder applications have found their place in liquid composite molding processes, as they simplify preprocessing steps such as preforming and subsequent handling. Moreover, binders can modify mechanical behavior of finished fiber reinforced plastic parts. Besides the obvious potentials, topics such as the impregnation behavior become more complicated due to binders. The present paper addresses the issue of estimating permeability values of epoxy powder bindered non-crimp fabrics, after considering different test fluids and their behavior under standard laboratory conditions as well as manufacturing-oriented conditions. Test fluid properties, especially surface energy as well as viscosity development with respect to temperature were provided, thereby highlighting a more complete picture of the flow situation during resin transfer molding processes. In contrary to former scientific studies, the influence of test fluids seems to have more influence when investigating Bindered Preforms.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

Tonejc

Ebner

Fauster

et al. 2019

Advanced Manufacturing: Polymer & Composites Science

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show abstract

“…However, these methods are little effective or lead to a decrease of other relevant mechanical properties, such as stiffness and strength. Wu et al proposed a toughening concept for textile reinforced pCBT composites by applying an epoxy preforming binder among textile fabric layers. The pCBT matrix in the interply region was toughened.…”

Section: Introductionmentioning

confidence: 99%

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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“…In a follow-up work, 207 Kim et al 204 suggested a novel fast manufacturing process using high-speed processing at 250 °C for 2 min. Structure and properties of the composites were altered by thermal annealing and the mechanical properties as well as thermal stability were improved as the remaining CBT oligomers were polymerized further.…”

Section: Composites With Carbon Fibresmentioning

confidence: 99%

“…An increasing amount of work is focussed on improving the mechanical properties of Wu et al [205][206][207][208][209] proposed a new concept for binding and ex situ toughening of textile reinforced pCBT composites. First, an epoxy preforming binder in powder form was spread onto the surface of tri-axial GF fabrics and then thermally activated in a hot plate press.…”

Section: Composites With Carbon Fibresmentioning

confidence: 99%

A Review of the Recent Advances in Cyclic Butylene Terephthalate Technology and its Composites

Abt

Sánchez‐Soto

2016

Critical Reviews in Solid State and Materials Sciences

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Simultaneous binding and ex situ toughening concept for textile reinforced pCBT composites: Influence of preforming binders on interlaminar fracture properties

Cited by 23 publications

References 20 publications

Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

Toughened carbon fiber fabric‐reinforced pCBT composites

A Review of the Recent Advances in Cyclic Butylene Terephthalate Technology and its Composites

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