[논문]천연섬유보강 복합재료의 최근 연구 개발

미르자 화이잘; 압사 알리; 김병선; 송정일

doi:10.7234/kscm.2009.22.4.041

천연섬유보강 복합재료의 최근 연구 개발
Recent Developments in Natural Fiber Reinforced Composites 원문보기

복합재료 : 한국복합재료학회지 = Journal of the Korean Society for Composite Materials, v.22 no.4, 2009년, pp.41 - 49

미르자 화이잘 (Dept. of Mechanical Engineering, Changwon National University) , 압사 알리 (Dept. of Mechanical Engineering, Changwon National University) , 김병선 (Composite Materials Lab, Korea Institute of Materials Science (KIMS)) , 송정일 (Dept. of Mechanical Engineering, Changwon National University)

초록
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천연섬유복합재료는 저비용, 경량, 재생성, 친환경적인 재료로 최근 제조되고 있다. 또한 이들 재료는 생체분해성과 비연마 특성을 갖고 있다. 천연섬유의 친환경적이고 생체분해성으로 인해 천연섬유복합재료는 기존의 섬유를 대체할 잠재적인 대체재로 관심을 받고 있다. 천연섬유의 화학적, 기계적, 물리적 특성은 다양한 섬유의 셀룰로스양에 따라 명확한 특정이 구분되며, 이러한 복합재료의 기계적인 물성치는 기지재와 섬유간의 접착에 의해 주로 영향을 받고 있다. 천연섬유표면의 여러 화학적인 물리적인 개질방법은 섬유와 기지의 접착력 향상에 영향을 주어 결국 복합재료의 기계적인 물성치를 향상시킬 수 있다. 본 논문은 최근 개발되고 있는 천연섬유복합재료의 섬유종류, 고분자기지, 제조기술, 섬유의 처리, 섬유 기지간 계면등에 관한 최근의 연구결과들을 정리하여 소개한 것이다.

Abstract ▼ AI-Helper

Natural fiber reinforced composites are emerging as low-cost, lightweight, recyclable, and eco-friendly materials. These are biodegradable and non-abrasive. Due to eco-friendly and biodegradable characteristics of natural fibers, they are being considered as potential candidates to replace the conventional fibers. The chemical, mechanical, and physical properties of natural fibers have distinct features depending upon the cellulose content of the fibers which varies from fiber to fiber. The mechanical properties of composites are influenced mainly by the adhesion between matrix and fibers. Several chemical and physical modification methods of fiber surface were incorporated to improve the tiber-matrix adhesion resulting in the enhancement of mechanical properties of the composites. This paper outlines the works reported on natural tiber reinforced composites with special reference to the type of fibers, polymer matrix, processing techniques, treatment of fibers, and fiber-matrix interface.

주제어

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문제 정의

In this paper, an attempt has been made to review the recently reported works on various aspects of natural fiber reinforcedcomposites. The modifications of fiber and matrix are discussed and recent developments of such composites are addressed.

제안 방법

Its mechanical and morphological properties were examined as a function of the amount of compatibilizing agent used. In the sample preparation, four levels of filler loading (10, 20, 30, and 40 wt%) and three levels of compatibilizing agent content (1, 3, and 5 wt%) were used. In the tensile test, six test temperatures (-30, 0, 20, 50, 80, and 110℃) and five crosshead speeds (2, 10, 100, 500, and 1500 mm/min) were used.
In the sample preparation, four levels of filler loading (10, 20, 30, and 40 wt%) and three levels of compatibilizing agent content (1, 3, and 5 wt%) were used. In the tensile test, six test temperatures (-30, 0, 20, 50, 80, and 110℃) and five crosshead speeds (2, 10, 100, 500, and 1500 mm/min) were used. The tensile strengths of the composites decreased as the filler loading increased, but the tensile properties were significantly improved with the addition of the compatibilizing agent.
The improvements in the mechanical properties are broadly related to various factors, such as the wettability of resin melts into fiber bundles, interfacial adhesion, orientation, and uniform distribution of matrix-fibers and the lack of fiber attrition and attenuation during tubular braiding process.

성능/효과

The tensile properties at different temperatures were evaluated. It was found that the tensile strengths and Young's moduli of PLA/kenaf and PBS/kenaf composites were larger than those of both resins alone at different temperatures. This result shows the reinforcement effect of PLA and PBS by kenaf fibers [12].

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