• Polymer(Korea)
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• v.38 no.4
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• pp.518-524
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• 2014

Electrospinning has gained interests as a polymer processing technique for nanofiber fabrications. It is well known that both polymer solutions and polymer melts can be electrospun. Among them, melt electrospinning is environmentally friendly technique due to the absence of solvent. However, the diameter of melt-electrospun fibers is typically thicker than solution-electrospun fibers. By using a home-made melt-electrospinning device, micron-sized fibers with smooth and even surfaces were electrospun successfully. We demonstrate that low-density polyethylene fibers can be reduced in diameter with a viscosity-reducing additive such as low molecular weight polyethylene monoalcohol and polyethylene wax. The diameter was further reduced by blending it with oxidized polyethylene wax due to polarity increment. Additionally, parameters affecting the diameter were analyzed such as an applied voltage and a spinning distance.

• Proceedings of the Korean Fiber Society Conference
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• 1995.04a
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• pp.26-26
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• 1995

• Proceedings of the Korean Fiber Society Conference
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• 1991.06b
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• pp.85-85
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• 1991

• Proceedings of the Korean Fiber Society Conference
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• 1996.04a
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• pp.76-78
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• 1996

• Proceedings of the Korean Fiber Society Conference
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• 1996.04a
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• pp.123-126
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• 1996

• Proceedings of the Korean Fiber Society Conference
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• 1997.10a
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• pp.162-165
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• 1997

• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.107-110
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• 2001

폴리에틸렌 나프탈레이트(PEN)는 PET의 벤젠 고리 대신에 나프탈렌 고리로 치환 되어 있어 주사슬의 강직성으로 유리전이 온도와 용융 온도가 높고 기계적 물성이 뛰어나며 열수축이 적고 헝태 안정성이 우수하다고 알려져 있다[1]. 그러나 PEN의 원료 물질이 비싸기 때문에 블렌드를 이용해 PEN의 장점을 보다 폭넓게 활용하기 위한 연구가 활발히 진행되고 있다[2-3]. 한편 폴리에틸렌 테레프탈레이트(PET)는 섬유용 및 각종 산업용 소재로 가장 널리 이용되고 있는 고분자 중의 하나이다. (중략)

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.10a
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• pp.210-210
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• 2003

• Proceedings of the Korean Fiber Society Conference
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• 1996.04a
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• pp.79-80
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• 1996

• Journal of the Korean Recycled Construction Resources Institute
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• v.10 no.3
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• pp.243-251
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• 2022

The purpose of this study is to investigate experimentally the effect of polyethylene fibers with different tensile strength and aspect ratio on the properties of cementless composite. Three types of mixtures according to the types of polyethylene fibers and water-to-binder ratio were prepared and density, compressive strength and tension tests were performed. Test results showed that the mixture reinforced by polyethylene fiber with a low tensile strength by 10 % and a high aspect ratio by 8.3 % had a high tensile strain capacity by 11.7 %, a high toughness by 12.4 %, and a low crack width by 9.1 %. It was also observed that high tensile strain capacity and better cracking pattern could be achieved by increasing the water-to-binder ratio of composite although its strength is low.