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Fabrication of carbon fiber SMC composites with vinyl ester resin and effect of carbon fiber content on mechanical properties
Haksung Lee, Mongyoung Huh, Jaeyoung Yoon, Dasom Lee, Seonyul Kim, Shinjae Kang 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 11 101-104 (4 pages)
Fiber reinforced composites are being used in the automotive industry and other manufacturing fields. Their properties, including high specific stiffness, strength and weight reduction make fiber composite materials an attractive replacement for metal components. The development of composites like carbon fiber reinforced plastic and related production technologies have contributed to the increasing application of fiber composite materials. Many new components have recently been adapted,... -
Cellulose-based carbon fibers prepared using electron-beam stabilization
Min Il Kim, Mi-Seon Park, Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.18 9 56-61 (6 pages)
Cellulose fibers were stabilized by treatment with an electron-beam (E-beam). The properties of the stabilized fibers were analyzed by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. The E-beam-stabilized cellulose fibers were carbonized in N₂ gas at 800°C for 1 h, and their carbonization yields were measured. The structure of the cellulose fibers was determined to have changed to hemicellulose and... -
Microwave-assisted pretreatment technologies for the conversion of lignocellulosic biomass to sugars and ethanol: a review
Pradeep Puligundla, Sang-Eun Oh, Chulkyoon Mok 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 1 1-10 (10 pages)
Lignocellulosic biomass conversion to biofuels such as ethanol and other value-added bio-products including activated carbons has attracted much attention. The development of an efficient, cost-effective, and eco-friendly pretreatment process is a major challenge in lignocellulosic biomass to biofuel conversion. Although several modern pretreatment technologies have been introduced, few promising technologies have been reported. Microwave irradiation or microwave-assisted methods (physical and... -
Influence of oxidative atmosphere of the electron beam irradiation on cyclization of PAN-based fibers
Hye Kyoung Shin, Mira Park, Hak-Yong Kim, Soo-Jin Park 한국탄소학회 Carbon Letters 3 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 10 219-221 (3 pages)
In order to study the impact of atmosphere during electron beam irradiation (EBI) of polyacrylonitrile (PAN) precursor fibers, the latter were stabilized by EBI in both air and oxygen atmospheres. Gel-fraction determination indicated that EBI-stabilization under an oxygen atmosphere leads to an enhanced cyclization in the PAN fibers. In the Fourier-transform infrared spectroscopy analysis, the PAN fibers stabilized by EBI under an oxygen atmosphere exhibited a greater decrease in the peak... -
An overview of new oxidation methods for polyacrylonitrile?based carbon fibers
Hye Kyoung Shin, Mira Park, Hak-Yong Kim and Soo-Jin Park 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.1 2 11-18 (8 pages)
The process of oxidizing polyacrylonitrile (PAN)-based carbon fibers converts them into an infusible and non-flammable state prior to carbonization. This represents one of the most important stages in determining the mechanical properties of the final carbon fibers, but the most commonly used methods, such as thermal treatment (200°C to 300°C), tend to waste a great deal of process time, money, and energy. There is therefore a need to develop more advanced oxidation methods for PAN precursor... -
양마의 인피섬유를 이용한 한지제조
조남석, Cho. Nam-Seok 한국펄프종이공학회 펄프 종이기술 9 Pages
한국펄프종이공학회 펄프 종이기술 2008, Vol.40 No.4 1-9 (9 pages)
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제주지역에서 예취높이에 따른 양마의 생육특성, 사료수량 및 조성분 변화
조남기, 강영길, 송창길, 조영일, 오은경, 고미라, 박정식 한국초지조사료학회 한국초지학회지 8 Pages
한국초지조사료학회 한국초지학회지 2002, Vol.22 No.1 15-22 (8 pages)
제주지역에서 예취높이에 따른 (2, 4, 6, 8 및 l0cm)에 따른 양마의 생육특성, 수량성 및 사료가치를 구명하기 위하여 2001년 4월 13일부터 10월 8일까지 시험한 결과는 다음과 같다. 초장은 2cm 예취에서 157.7cm였던 것이 예취높이가 높아짐에 따라 점차적으로 커져서 10cm 예취에서는 180.2cm로 커졌다. 엽수, 분지수, 경직경 및 주당 무게는 초장반응과 비슷한 경향이었다. 생초, 건물, 단백질 및 TDN 수량은 2cm 예취에서 각각 85.5MT/ha, 11.97MT/ha, 1.63MT/ha, 4.95MT/ha로 감수되었으나 예취높이가 높아짐에 따라 점차적으로... -
제주지역에서 질소시비량 차이에 따른 양마의 생육특성, 수량 및 조성분 변화
조남기, 송창길, 조영일, 고지병 한국초지조사료학회 한국초지학회지 8 Pages
한국초지조사료학회 한국초지학회지 2001, Vol.21 No.2 59-66 (8 pages)
