• Title/Summary/Keyword: Polyacrylonitrile fiber

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Preparation of fiber and Characterization of Hydroxyapatite/Polyacrylonitrile hybrid fiber (Hydroxyapatite/Polyacrylonitrile 복합섬유의 제조 및 특성)

  • 강성일;정용식;박병기
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10b
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    • pp.279-280
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    • 2003

  • 아크릴계 섬유를 포함하여 기존 섬유의 새로운 용도 창출 및 부가가치를 높이기 위하여 특수한 기능성을 나타내는 섬유들에 대한 관심이 꾸준히 증가하고 있다[1]. 이러한 이유로 유기물질과 무기물질의 복합체 제조는 일찍이 1980년대 초부터 연구되고 있고, 새로운 성능 및 기능 화대를 목표로 계속 이루어지고 있다[2]. 폴리아크릴로니트릴(Polyacrylonitrile, PAN)은 용액방사를 하는 대표적인 합성섬유로 담요, 카페트, 커튼 등 다양한 제품으로 응용되고 있으며, 그 성질이 천연섬유인 양모와 유사하기 때문에 양모 대체용으로 많이 사용되고 있다[1]. (중략)

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Grafting of Casein onto Polyacrylonitrile Fiber for Surface Modification

  • Jia Zhao;Du Shanyi
    • Fibers and Polymers
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    • v.7 no.3
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    • pp.235-240
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    • 2006

  • Polyacrylonitrile (PAN) fiber was grafted with casein after alkaline hydrolysis and chlorination reactions of the original fiber. The structures and morphologies of the casein grafted fiber were characterized by Fourier transform infrared spectroscopy (FTIR), X-Ray diffraction (XRD), and scanning electron microscope (SEM). Moisture absorption, specific electric resistance, water retention value, and mechanical properties were also investigated. The results showed that casein was grafted onto the surface of the PAN fiber and the grafted PAN fiber presented better hygroscopicity compared with the untreated fiber. With proper tensile strength, the modified fiber could still meet the requirement for wearing. A mechanism was proposed to explain the deposit of casein on the synthetic acrylic fiber.

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A Study on Stabilization and Mechanical Properties of Polyacrylonitrile-based Fiber with Itaconic acid (이타콘산을 함유한 폴리아크릴로니트릴계 전구체섬유의 열안정화 및 그 물성에 관한 연구)

  • 신익기;이신희;박수민
    • Textile Coloration and Finishing
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    • v.15 no.2
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    • pp.76-85
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    • 2003

  • In this study, a continuous stabilization process is used to make high-performance carbon fiber from polyacrylonitrile(PAM)-based fibers. The effect of oxygen content of PAN-based fiber on the stabilization process and the properties of the resultant carbon fibers is investigated. In order to research the progress of stabilization reaction FT-IR, elemental analysis, density, DSC, etc are used. Stabilization is carried out in air atmosphere from the 200 to $300^\circ{C}$ temperature range. An increase of PAN-based fibers diameter reduces the oxygen content during the continuous stabilization process. A higher oxygen content increase the density, tensile strength and modulus in the resultant carbon fibers. The most appropriate oxygen content in the stabilized fiber should be about 12%. Fibers having more than 2% oxygen content yield carbon fibers with inferior properties. Those carbon fibers also have sufficient commercial availability.

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