• Title, Summary, Keyword: spectra/vinylester composite

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A Study on the Tensile Behavior of Spectra Composite with Surface Treatment of Spectra Fibers (스펙트라 섬유의 표면처리에 따른 스펙트라 복합재의 인장특성에 관한 연구)

  • 신동혁;이경엽
    • Proceedings of the Korean Society For Composite Materials Conference
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    • pp.192-194
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    • 2002
  • We investigated the surface treatment of spectra fibers to improve tensile properties of spectra/vinylester composites. The spectra fibers were surface-treated using $\textrm{Ar}^{+}$ ion beam under oxygen environment. The treatment effect of spectra fibers on the tensile properties of spectra/vinylester composites was determined comparing the residual strength of surface-treated spectra/vinylester composites with that of untreated spectra/vinylester composites. It was found that the residual strength was improved 15% by the surface treatment of spectra fibers.

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A Study on the Tensile Characteristics of Spectra/Vinylester Composites with Ion Beam Treatment of Spectra Fibers. (이온빔으로 표면처리한 스펙트라/비닐에스테르 복합재의 인장특성)

  • 신동혁;이경엽
    • Journal of the Korean institute of surface engineering
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    • v.35 no.4
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    • pp.206-210
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    • 2002
  • The use of Spectra fibers as fiber cloth is increasing because of their excellent impact resistance. However, a major limitation on the use of Spectra fibers is a chemical inertness. In this Study, Spectra fibers were surface-treated using Ar$^{+}$ ion beam under oxygen environment to improve the tensile property of Spectra/vinylester composites. The effect of surface treatment of Spectra fibers on the tensile property of Spectra/vinylester composites was determined from tensile tests using Spectra/vinylester composite specimens with and without a hole. It was found that the tensile stiffness and strength of surface-treated case were 22% and 17% higher than those of untreated case for specimens with no hole. The maximum load of surface-treated case was about 15% higher than that of untreated case for specimens with a hole.

On the Mechanics of Impact Resistant Stitched Spectra/Vinylester Woven Laminate Composites (스티칭에 의한 Spectra/비닐에스테르 적층복합재료의 내충격성 변화에 관한 연구)

  • Lee, Seung-Ho;Gang, Tae-Jin;Uk, Jong-Il
    • Textile Science and Engineering
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    • v.31 no.1
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    • pp.32-36
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    • 1994
  • The mechanical and impact properties of the stitched Spectra composite was studied. The Spectra fiber reinforced vinylester composites were stitched with plain stitch to improve mechanical and impact resistant properties. The Spectra liber was used as a stitching thread and the composites were stitched twice in alternating sequence with plain stitch. The stitched composite showed different behavior with stitch densities in tensile and flexural properties. The effect of stitching has been changed with the mechanical properties measured under different restrained condition. The stitching has improved the preserving properties of the woven laminate composite structure by restricting the damage propagation.

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