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플라즈마 처리에 따른 탄소/나일론 6 복합재의 계면 특성 및 물성 연구
권일준,박성민,신동우,유성훈,염정현,Kwon, Il-Jun,Park, Sung-Min,Shin, Dong-Woo,Yoo, Sung-Hun,Yeum, Jeong-Hyun 한국섬유공학회 2016 한국섬유공학회지 Vol.53 No.4
In this study, PAN-based carbon fabrics were treated with plasma generated from argon and oxygen for surface modification. The effects of plasma treatment on the interfacial binding force of carbon/nylon 6 composites were investigated. Chemical changes on the surface of the carbon fiber due to plasma treatment were studied with the help of X-ray photoelectron spectroscopy. Atomic-force microscopy was used to examine the surface morphology of the carbon fibers. The effect of the duration of the plasma treatment on the surface energy of the carbon fibers was investigated, and mechanical tests for carbon/nylon 6 composites were conducted. It was found that functional groups of hydroxyl and carboxyl were created on the surface of the carbon fibers owing to the plasma treatment. Furthermore, the interfacial binding force improved with an increase in the duration of the plasma treatment.
국내도매여행사와 소매여행사의 관계적 특성이 관계지향성에 미치는 관계 연구
권일준(Kwon, Il-Jun) 국제관광산업학회 2016 국제관광산업연구 Vol.9 No.1
The study purposes were pursued in a documentary study and an empirical one. In the documentary study, the theoretical base was set up through books, papers and data related to the factors that affect outbound tourists’ choice of a travel agency. ey were also referred to as standards and used to set the core factors and environment factors in choosing a travel agency. In the empirical study, a questionnaire was made up based on the choice attributes that derived from the documentary study and preliminary studies. The analysis results were as follows: The core factors that affect outbound tourists’ choice of a travel agency included goods factor, price factor, employee factor, and travel agency service factor. The relative importance of the core factors that affect a choice of a travel agency on the overall satisfaction was great in the order of goods factor, travel agency service factor, employee factor and price factor. at of the core factors on the will to use a travel agency again was great in the order of goods factor, employee factor, travel agency factor and price factor. And that of the core factors on the intention to recommend goods was great in the order of employee factor, goods factor, travel agency service factor, and price factor.
뷰티관광의 서비스품질과 관광자만족에 미치는 영향에 관한 연구
권일준(Kwon, Il-Jun) 국제관광산업학회 2015 국제관광산업연구 Vol.8 No.1
This study analyzed how the service quality of the Beauty Tour affects tourist satisfaction. It aims to investigate future tourist satisfaction, repurchase intention, and propensity for word-of-mouth marketing, which would bring positive infuence when the study on the development of the products related to the Korean Beauty Tour is carried out. It is necessary to properly introduce the advanced Beauty Tour products of Korea and change its perception by means of aggressive advertisements. Furthermore, in improving the satisfaction of Japanese tourists visiting Korea and enhancing their re-visit intention, it is recommended to utilize the Beauty Tour and turn it into a new tourism product so that it may be recognized as a signifcant product among inbound products. e Beauty Tour produced by Korea requires aggressive advertisements targeting foreign tourists about the advanced service, facility and competitive price it provides. While it is certainly shown that the Beauty Tour is one of the most important tourism products to improve customer satisfaction there is a need to continuously develop new products and enhance their technological level.
발포제에 따른 산무수물계 에폭시 폼의 압축강도 및 포밍특성 분석
권동준 ( Dong-jun Kwon ),김종현 ( Jong-hyun Kim ),박성민 ( Sung-min Park ),권일준 ( Il-jun Kwon ),박종만 ( Joung-man Park ) 한국복합재료학회 2018 Composites research Vol.31 No.4
구조용 폼의 용도는 난연, 단열 기능이외에 구조적인 목적으로 공극부위를 충진시키는 용도로 사용되고 있다. 경량 소재 개발을 위해 CFRP와 구조용 폼이 이용되고 있으며, PUR, PIR, PVC, PET와 같은 대표적인 폼이 존재한다. 본 연구에서는 구조용 폼의 특성 중 강도 강화를 위한 목적으로 에폭시 폼을 개발하고자 하였다. 에폭시조성 중 산무수물계 경화제는 기존의 폴리올과 반응을 하기 때문에 산무수물계 에폭시 수지에 발포제를 이용할 경우 폼이 형성되는지, 형성된다면, 압축특성과 포밍 형태를 관하는 연구를 진행하였다. 에폭시 폼을 형성시키기 위한 발포제의 종류에 따른 영향 및 발포재의 농도에 따라 변화되는 폼밍의 결과 차이를 분석하였으며, 산무수물계 수지의 조성차이에 따른 폼의 압축강도를 평가하였다. 궁극적으로 에폭시 폼을 최적의 발포제 선정으로 구조적 강도가 높은 폼을 형성시킬 수 있음을 확인하였으며, 기존의 구조용 폼 소재에 비해 높은 압축강도 및 비압축강도를 가짐을 확인하였다. Polymer foams were used to fill the void in the structure in addition to flame retardant and heat insulation. Polymer foams such as polyurethane, polyisocyanurate, poly(vinyl chloride), polyethylene terephthalate were used to weight lighting materials. In this study, epoxy foam was used to improve mechanical properties of polymer foam. Acid anhydride type hardener reacts with polyol. Using this phenomenon, if blowing agent was added into epoxy resin using acid anhydride type hardener, formation and compressive properties of epoxy foam was studied. Formation of polymer foam was compared with type of blowing agent and concentration of blowing agent via compressive test. As these results, optimized condition of epoxy foam was found and epoxy foam had better compressive property than other polymer foam.
탄소-아라미드 복합소재 로봇암의 진동감쇠 물성시험과 전산해석
신동우,권일준,박성민,박용민,최진경,Shin, Dong-Woo,Kwon, Il-Jun,Park, Sung-Min,Park, Yong-Min,Choi, Jin-Kyung 한국섬유공학회 2015 한국섬유공학회지 Vol.52 No.6
In accordance with the increase in demand for LCDs and the increasing industry competition with higher productivity, the size of LCD glass has been gradually increasing. When transferring a robot hand by setting up an LCD panel, the vibration increases the inertia and load of up and down motion, rotational motion, and mobile motion of the whole robot. With regards to the up and down motion of the robot hand, when time is short on study of the vibration reduction. In this paper, we evaluate the structural arm of an LCD robot by using finite element analysis and fast Fourier transform (FFT). An impact test of the arm, which is made from the composite materials of carbon fiber reinforced plastics (CFRP) and Kevlar fiber reinforced plastics (KFRP) for lightweight and damping, was conducted.