[논문]FRP선박의 일괄 재처리 방법의 개선

이승희; 윤구영

doi:10.7846/jkosmee.2013.16.1.53

초록
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1990년대 이후, 중소형 폐 선박으로부터 생성되는 FRP를 재활용하기 위한 방법으로 층상으로 배열된 로빙층과 매트층을 분리하는 것은 친 환경적이면서도 경제적 재활용의 장점을 가지고 있다. 그러나 효율적으로 로빙층과 매트층을 분리하는 기술과 로빙층은 매트층에 비해 얇은 두께로 존재한다는 이유로 인해 로빙층을 매트층과 분리할 때 기계가 자동적으로 층간의 차이를 인식하는 방법은 아직 개발이 이루지지 않고 있다. 본 연구에서는 유리의 구성비가 다른 두 층의 화학적 성질의 차를 이용하여 광학적으로 층간 인식이 가능한 방법을 모색하였다. 또한 다양한 로빙층의 구성에도 자동적으로 절단위치를 분석하는 절단시스템과 최종생산물의 유용성을 확보할 수있는 다양한 크기의 유리섬유를 생산할 수있는 세단기를 개발하였다. 본 연구 결과로 광학적 인식기술과 유연한 절단기술 그리고 다양한 세단기술이 융합된 폐 FRP의 분리 공정의 단순화와 자동화를 달성하게 되었다.

Abstract ▼ AI-Helper

Since 1990s, the major recycling methods for mechanical recycling of FRP(Fiber Reinforced Plastics)boats has involved shredding and grinding of the scrap FRP in a new recycled product. But still it leads to secondary problem such as air pollution, unacceptable shredding noise level and few limited a...

Since 1990s, the major recycling methods for mechanical recycling of FRP(Fiber Reinforced Plastics)boats has involved shredding and grinding of the scrap FRP in a new recycled product. But still it leads to secondary problem such as air pollution, unacceptable shredding noise level and few limited applications. This study is to propose a newly advanced method which is more efficient and environment friendly waste FRP regenerating system. As extracting FRP layer and making the recycled fiber for recycled-fiber reinforced concrete(RFRC) from waste FRP, the recycling process has some merits in a sense of the recycling energy and the environmental effects. In this study, for those tasks, spectro-chemical differentiation method and coloring water-soluble dye treatment makes the roving layer more distinguishable photophysically. Also that has remarkably reduced safety hazards and energy. Using the mechanical properties of polymers and composite, FRP with the orthotropic and laminated plastic structure has been easily separated in the new extracting system. Also the new method has introduced five kind of separating manuals for the some different compositions of FRP boats. The roving fiber of laminated glass-fiber layer is as good as the polyvinyl fiber which is cost-high commercial fiber to increasing strength of concrete products. The early study has shown the effectiveness of laminated glass-fiber layer which also is chemical-resistant due to the resin coating. These results imply that more efficient and environment friendly recycled glass fiber can be better applied to the fiber reinforced concrete(FRC) substitute and this study also has shown wide concrete applications with RFRC from the waste FRP boat.

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가설 설정

1. New proposed (patent) mechanical recycling system is not just efficient but also ecofriendly FRP waste regenerating system. That has remarkably reduced safety hazards (air pollution and shredding noise) and crushing energy.

제안 방법

A broad spectrum can be seen more than five cases [10] where mat and roving cloth are accurately arranged to cases where position of roving cloth is random or diverse compositions lie scattered about. For this reason, this study designed the distracting manual for general FRP which has several types of laminated glassfiber layer (Fig. 4). The manual included automatically distracting laminated glassfiber for regular composition cases from a single layer to three layer and non-automatical method for the random composition with transporting edged tool while the layer differentiating vision system is fully supported.
4). The manual included automatically distracting laminated glassfiber for regular composition cases from a single layer to three layer and non-automatical method for the random composition with transporting edged tool while the layer differentiating vision system is fully supported.

성능/효과

2. New extracting system trying to satisfy diverse combination of mat and roving cloth affected by features of ship building industry is extremely inefficient. To improve this defect, patented new extracting system of laminated glassfiber was developed.
4. Newly developed system is only one step process for the same task with better efficiency and eco-friendly. The new system also has the key cutting tool which is developed for the only standard size of FRP fiber.

참고문헌 (12)

Bartholomew, K., 2004, "Fiberglass Reinforced Plastics Recycling", Dec. Report, MnTAP.
Defosse, M., 2003, "Composites: European industry hunts for recycling solutions under new EOLV laws", Modern Plastics, Vol.80, No.6, 73.
Lee, S., Kim, Y. and Lee, J., 2012, "A Study on the Chemical Pre-Treatments Suitable for the Layer Differentiation of FRP Waste", J of the Korean Society for Marine Environmental Engineering, Vol.14, No.1.
Lee, S., Kim, Y. and Yoon, K., 2010, "A Study on the Chemical Treatments of Recycling FRP Ship", J of the Korean Society for Marine Environmental Engineering, Vol.13, No.1.
Majumdar, A.J., 1975, "Properties of fiber cement composites", in Proceedings of the RILEM Symposium on the Fiber Reinforced Cement and Concrete, edited by Neville, A., pp 279314, The Construction Press, England.
Park, J. and Back, J., 2009, "Mechanical Properties of High Strength Concrete Reinforced with Recycled Fibres from Fiber- Reinforced Plastics", Journal of the Architectural Institute of Korea, Vol.25, No.8, pp 127-134.
Shibata, K. and Zairyo, K., 2006, "Desired environmental response from FRP/FRTPFRP recycle technology using atmospheric pressure dissolution method", Engineering materials, Vol.54, No.4, 58-61.
Shoji, Y., 2003, "Recycling FRP waste From pure research to practical use", J of the Japan Society for Composite materials, Vol.29, No.6, 210-216.

상세보기
Tsutomu, S., Shoji, N., Katsuto, O. and Takeshi, S., 2001, "Supercritical fluid in polymer science and technology. I. Decomposition of fiber reinforced plastics using fluid at high Temperature and pressure", Japanese J. of Poly. Sci. and Tech., Vol.58, No.10, pp. 557-563.

상세보기
Yoon, K., 2007, "New Practical and Ecofriendly Recycling method of FRP", J of the Korean Society for Marine Environmental Engineering, Vol.10, No.3, pp. 181-186.
Yoon, K., Kim, Y. and Lee, J., 2008, "Developing an Extracting Method of Laminated Glassfiber from FRP Boats", Proceedings of IEEE KOBE-TECO-DCEAN'08.
Yoon, K., Kim, Y. and Lee, S., 2007, Recycle of Glass Fiber Obtained from the Roving Cloth of FRP 1: Study for the Physical Properties of Fiberreinforced Mortar", J of the Korean Society for Marine Environmental Engineering, Vol.10, No.2, pp. 102-106.

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연합인증

FRP선박의 일괄 재처리 방법의 개선
Developing Advanced Total Recycling Method of FRP Boats 원문보기

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FRP선박의 일괄 재처리 방법의 개선 Developing Advanced Total Recycling Method of FRP Boats 원문보기

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FRP선박의 일괄 재처리 방법의 개선
Developing Advanced Total Recycling Method of FRP Boats 원문보기

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