Adhesion of Graphite Fibers to Epoxy Matrices: II. The Effect of Fiber Finish

Drzal, Lawrence T.; Rich, Michael J.; Koenig, M.; Lloyd, Pamela F.

doi:10.1080/00218468308074911

Cited by 403 publications

(115 citation statements)

References 13 publications

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“…The degree of interaction between filler and polymer and thus the composite properties have been related to the filler-matrix interface. As defined in traditional composites, by Drzal et al [16], and Schadler [17], the interfacial region is the region beginning at the point in the fiber at which the properties differ from those of the bulk filler and ending at the point in the matrix at which the properties become equal to those of the bulk matrix. The chemistry, polymer chain mobility, degree of cure, and crystallinity are likely to be altered in that region.…”

Section: Introductionmentioning

confidence: 99%

Controversial effects of fumed silica on the curing and thermomechanical properties of epoxy composites

Tarrío-Saavedra

López-Beceiro²,

Naya³

et al. 2010

Express Polym. Lett.

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Abstract. The effect of fumed silica on the curing of a trimethylolpropane epoxy resin was investigated by thermal analysis methods like Differential Scanning Calorimetry (DSC), and Dynamic Mechanical Analysis (DMA). The fumed silica used here is a by-product of the silicon and ferrosilicon industry, consisting of micro and nanosized particles. Both the curing reaction and the properties of the obtained composites were affected by the filler content. Different trends were observed for filler contents above and below the 30 wt%. Up to 30 wt%, the behaviour can be explained as a predominantly agglomeration effect. For 30 wt% and higher filler contents, single particles seem to play a more important role.

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Section: Introductionmentioning

confidence: 99%

Controversial effects of fumed silica on the curing and thermomechanical properties of epoxy composites

Tarrío-Saavedra

López-Beceiro²,

Naya³

et al. 2010

Express Polym. Lett.

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“…The SFFT method has several advantages such as: simple specimen handling, replication of the stress-transfer characteristics in real composites, convenient monitoring of failure processes directly, and the fact that critical length is sensitive to the level of fiber-matrix adhesion. Interface scientists regard this test as a reliable method for the determination of interfacial properties of the fiber-reinforced polymer composites [15][16][17][18][19][20][21][22][23].…”

Section: Introduction Fmentioning

confidence: 99%

Comparative Studies of Mechanical and Interfacial Properties between Jute and Bamboo Fiber-Reinforced Polypropylene-Based Composites

Nahar

Khan

Dey

et al. 2011

Journal of Thermoplastic Composite Materials

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Jute and bamboo fiber-reinforced polypropylene (PP) based composites (50 wt% fiber) were fabricated by compression molding. Tensile strength (TS), bending strength (BS), tensile modulus (TM), and bending modulus (BM) of the jutereinforced PP composite were found to be 48, 56, 900, and 1500 MPa, respectively. Then, bamboo fiber-reinforced PP-based composites (50 wt% fiber) were fabricated and the mechanical properties evaluated. The TS, BS, TM, and BM of bambooreinforced PP composites were found to be 60, 76, 4210, and 6210 MPa, respectively. It was revealed that bamboo fiber-based composites had higher TS, BS, TM, and BM compared to jute-based composites. Degradation tests of the composites (jute fiber/PP and bamboo fiber/PP) were performed in soil at ambient conditions for up to 24 weeks. It was revealed that bamboo fiber/PP composite retained its original mechanical properties higher than that of jute fiber/PP composite. The interfacial shear strength of the jute and bamboo fiber-based composites was investigated using the single-fiber fragmentation test and it was found to be 2.14 and 4.91 MPa, respectively. Fracture sides of the composites were studied by scanning electron microscope, and the results revealed poor fiber matrix adhesion for jute fiber-based composites compared to that of the bamboo fiber-based composites. Journal of THERMOPLASTIC COMPOSITE MATERIALS,

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“…This is a direct confirmation of many previous studies: the interposition of a third phase between the fibre and the polymer matrix often has a very limited influence on the stress transfer efficiency. For example, Drzal et al (1983) found a change from 408 to 361 mm in the fragment length when uncoated and coated Hercules AU4 carbon fibres are compared; or 223 and 187 mm for uncoated and coated Hercules AS4 fibres, respectively. Only small differences were also reported by Wimolkiatisak & Bell for carbon (1989) or Tripathi et al (1996) for glass when special coatings are put on the fibres.…”

Section: Discussionmentioning

confidence: 99%

Fibre/resin interaction in fragmentation tests: coaxial vs. simple specimens comparison

Favre

Auvray

Mavel

1997

Journal of Microscopy

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Fragmentation tests of single carbon fibres embedded in small resin specimens are widely used to compare fibre surface treatments or sizes. A limitation of the test is that the matrix must have a high enough ultimate strain for the multiple fracture process to be fully achieved before specimen fractures. The so‐called coaxial geometry was introduced in order to extend the method to low strain‐to‐failure resin systems. In agreement with the Cox theory of the elastic stress transfer, interposition of a ‘high’‐modulus material between the fibre and the resin (the ‘low’‐modulus material) results in a shorter fragment length, i.e. a better stress transfer.

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Adhesion of Graphite Fibers to Epoxy Matrices: II. The Effect of Fiber Finish

Cited by 403 publications

References 13 publications

Controversial effects of fumed silica on the curing and thermomechanical properties of epoxy composites

Controversial effects of fumed silica on the curing and thermomechanical properties of epoxy composites

Comparative Studies of Mechanical and Interfacial Properties between Jute and Bamboo Fiber-Reinforced Polypropylene-Based Composites

Fibre/resin interaction in fragmentation tests: coaxial vs. simple specimens comparison

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