Transcrystallinity in Surface Modified Aramid Fiber Reinforced Nylon 66 Composites

Alexander Feldman; M. Fernanda Gonzalez; Gad Marom

doi:10.1002/mame.200300151

Transcrystallinity in Surface Modified Aramid Fiber Reinforced Nylon 66 Composites

Alexander Feldman, M. Fernanda Gonzalez, Gad Marom

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Aramid (kevlar-49) fibers were surface treated by two different methods to induce roughness and then used to produce unidirectional nylon 66 based composites. The transcrystallinity generated around the treated fibers was characterized by SEM and polarized light microscopy and compared with the regular transcrystalline layers produced by pristine aramid under the same processing conditions. The treated fibers generated a double transcrystalline layer, the inner layer being thinner and more compact than the regular nylon 66 transcrystallinity. In addition, mechanical testing of the composites showed the longitudinal Young's modulus of the treated fiber composites to be significantly higher than the control in a wide range of fiber volume fractions.

Original language	English
Pages (from-to)	861-866
Number of pages	6
Journal	Macromolecular Materials and Engineering
Volume	288
Issue number	11
DOIs	https://doi.org/10.1002/mame.200300151
State	Published - 24 Nov 2003

Keywords

Aramid fibers
Fiber surface treatment
Nylon 66 composites
Transcrystallinity

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10.1002/mame.200300151

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abstract = "Aramid (kevlar-49) fibers were surface treated by two different methods to induce roughness and then used to produce unidirectional nylon 66 based composites. The transcrystallinity generated around the treated fibers was characterized by SEM and polarized light microscopy and compared with the regular transcrystalline layers produced by pristine aramid under the same processing conditions. The treated fibers generated a double transcrystalline layer, the inner layer being thinner and more compact than the regular nylon 66 transcrystallinity. In addition, mechanical testing of the composites showed the longitudinal Young's modulus of the treated fiber composites to be significantly higher than the control in a wide range of fiber volume fractions.",

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N2 - Aramid (kevlar-49) fibers were surface treated by two different methods to induce roughness and then used to produce unidirectional nylon 66 based composites. The transcrystallinity generated around the treated fibers was characterized by SEM and polarized light microscopy and compared with the regular transcrystalline layers produced by pristine aramid under the same processing conditions. The treated fibers generated a double transcrystalline layer, the inner layer being thinner and more compact than the regular nylon 66 transcrystallinity. In addition, mechanical testing of the composites showed the longitudinal Young's modulus of the treated fiber composites to be significantly higher than the control in a wide range of fiber volume fractions.

AB - Aramid (kevlar-49) fibers were surface treated by two different methods to induce roughness and then used to produce unidirectional nylon 66 based composites. The transcrystallinity generated around the treated fibers was characterized by SEM and polarized light microscopy and compared with the regular transcrystalline layers produced by pristine aramid under the same processing conditions. The treated fibers generated a double transcrystalline layer, the inner layer being thinner and more compact than the regular nylon 66 transcrystallinity. In addition, mechanical testing of the composites showed the longitudinal Young's modulus of the treated fiber composites to be significantly higher than the control in a wide range of fiber volume fractions.

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Transcrystallinity in Surface Modified Aramid Fiber Reinforced Nylon 66 Composites

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