Inhomogeneous toughening of carbon fiber/epoxy composite using electrospun polysulfone nanofibrous membranes by in situ phase separation

Li, Gang; Li, Peng; Zhang, Chen; Yu, Yunhua; Liu, Haiyang; Zhang, Shen; Jia, Xiaolong; Yang, Xiaoping; Xue, Zhongmin; Ryu, Seung‐Kon

doi:10.1016/j.compscitech.2007.07.010

Cited by 152 publications

(76 citation statements)

References 31 publications

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“…The mode I interlaminar fracture toughness of these laminates is typically higher than 600 J/m 2 . This fracture toughness is much higher than that of the prepreg materials studied so far in literature [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 61%

“…Although the idea of using electrospun nanofibres as a secondary reinforcement in composite structures has already been proposed by Dzenis and Reneker in 1999 [19], it is only since the last few years that the interlaminar toughening effects of thermoplastic nanofibres are being reported. to a more efficient toughening than the use of PSF films of equal weight [24].…”

Section: Introductionmentioning

confidence: 99%

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Interlaminar toughening of resin transfer moulded glass fibre epoxy laminates by polycaprolactone electrospun nanofibres

Heijden

Daelemans

Schoenmaker

et al. 2014

Composites Science and Technology

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Delamination and brittle matrix fracture has since long been a problem of fibre reinforced composites. This paper investigates if polycaprolactone (PCL) nanofibre nonwovens can increase the interlaminar fracture toughness of resin transfer moulded glass fibre/epoxy laminates, without causing problems during impregnation and without negatively affecting other (mechanical) properties.The mode I fracture toughness was shown to be dependent on both the nanofibre content as well as on how the nanofibres were introduced into the laminates. Almost 100% improvement in fracture toughness could be achieved by electrospinning the PCL nanofibres on both sides of the glass fibre mats prior to impregnation. This led to a mode I fracture toughness of over 1200 J/m 2 . 2Tensile and dynamic mechanical properties of the toughened laminates were not affected by the PCL nanofibres. It could be concluded that even state of the art infusion resins with a high intrinsic fracture toughness can benefit significantly from nanofibre toughening.

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Section: Introductionmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Interlaminar toughening of resin transfer moulded glass fibre epoxy laminates by polycaprolactone electrospun nanofibres

Heijden

Daelemans

Schoenmaker

et al. 2014

Composites Science and Technology

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“…In fact it is not even known if the sample fails for delamination of for matrix/fiber breakage. Similar experiments, such as 3PB or 4PB [21,24,27,28,32,33,57,59,71,72], ILSS [24,32,53,77], and SBSh [21,33,78] have been performed to investigate behaviour of nanomodified composites under bending loads. Areas of interest are the flexural properties of the laminates and the shear stresses occurring between two laminae.…”

Section: Pure Bendingmentioning

confidence: 99%

Electrospun nanofibers as reinforcement for composite laminates materials – A review

Palazzetti

Zucchelli

2017

Composite Structures

137

113

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In the last few decades nanofibers have been developed and introduced in a vast number of industrial and research applications. One of their most effective use is as interleaved reinforcement for composite laminate materials against delamination. Nanofibrous mats have the ideal morphology to be embedded between two plies of a laminate, and a vast and deep research has been carried out investigating their effect on the global behaviour of a composite laminate. This review is the first of its kind to date which presents a detailed state-ofthe-art on the effect of nanofibrous interleaves into composite laminates with focus on the mechanical performances and behaviours of nanomodified materials. A detailed description of the working mechanisms of the nanointerleave under different load cases is presented, and a comparative analysis between papers in literature will provide readers with a powerful tool to understand and use nanofibers for reinforcing purposes.

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“…Because of their high surface-area-to-volume ratio, the nanofibrous materials could also be efficient reinforcing materials in polymer matrix composites. In these systems, the nanofibers can even act as the primary reinforcement (the nanofibers are the only reinforcing materials) as well as co-reinforcement (in addition to microfibers) [5]. From a mechanical properties point of view, the main problem associated with common fiber-reinforced polymer composite laminates is their weak interlaminar properties.…”

mentioning

confidence: 99%

The effect of needleless electrospun nanofibrous interleaves on mechanical properties of carbon fabrics/epoxy laminates

Molnár¹,

Ko²,

Mészáros³

2014

Express Polym. Lett.

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The relatively easy production of polymer nanofibers by electrospinning has been the subject of many application-oriented investigations over the past few years. Most of these studies address the possibility of using such nanofibers in filtering, biomedical, sensor and clothing applications [1][2][3][4]. Because of their high surface-area-to-volume ratio, the nanofibrous materials could also be efficient reinforcing materials in polymer matrix composites. In these systems, the nanofibers can even act as the primary reinforcement (the nanofibers are the only reinforcing materials) as well as co-reinforcement (in addition to microfibers) [5]. From a mechanical properties point of view, the main problem associated with common fiber-reinforced polymer composite laminates is their weak interlaminar properties. Due to a geometry that is not absolutely planar, much free space occurs between layers of the reinforcing structures, which are filled up by the matrix material during impregnation. Thus, between the layers, the properties are determined mainly by the matrix and voids. The loads induced by shear-or out-of-plane stresses must be borne by this relatively weak matrix, 62The effect of needleless electrospun nanofibrous interleaves on mechanical properties of carbon fabrics/epoxy laminates Abstract. The effect of polyacrylonitrile nanofibrous interlaminar layers on the impact properties of unidirectional and woven carbon fabric (CF)-reinforced epoxy (EP) matrix composites was investigated. The nanofibers were produced directly on the surface of carbon fabrics by a needleless electrospinning method, and composites were then prepared by vacuum-assisted impregnation. Interlaminar shear stress tests, three-point bending, Charpy-impact and instrumented falling weight tests were carried out. The fracture surfaces were analyzed by scanning electron microscopy. Due to the nano-sized reinforcements, the interlaminar shear strength of the woven and unidirectional fiber-reinforced composites was enhanced by 7 and 11%, respectively. In the case of the falling weight impact tests carried out on woven reinforced composites, the nanofibers increased the absorbed energy to maximum force by 64% compared to that measured for the neat composite. The Charpy impact tests indicated that the nanofiber interleaves also led to a significant increase in the initiation and total break energies. Based on the results, it can be concluded that the presence of nanofibers can effectively increase the impact properties of composites without compromising their in-plane properties because the thickness of the composites was not altered by the presence of interleaves. The improvement of the impact properties can be explained by the good load distribution behavior of the nanofibers.

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Inhomogeneous toughening of carbon fiber/epoxy composite using electrospun polysulfone nanofibrous membranes by in situ phase separation

Cited by 152 publications

References 31 publications

Interlaminar toughening of resin transfer moulded glass fibre epoxy laminates by polycaprolactone electrospun nanofibres

Interlaminar toughening of resin transfer moulded glass fibre epoxy laminates by polycaprolactone electrospun nanofibres

Electrospun nanofibers as reinforcement for composite laminates materials – A review

The effect of needleless electrospun nanofibrous interleaves on mechanical properties of carbon fabrics/epoxy laminates

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