• Title/Summary/Keyword: 친환경 신소재

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A study on consumer confusion, value, and price sensitivity of eco-friendly fashion product (친환경 패션제품에 대한 소비자 혼란과 가치, 가격민감성 연구)

  • Shin, Sangmoo;Lim, Yura
    • The Research Journal of the Costume Culture
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    • v.29 no.1
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    • pp.48-64
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    • 2021
  • Eco-friendly consumption is a prominent trend in the fashion industry, by which many firms attract the interest of consumers using a green marketing strategy. However, "greenwashing" (caused by distorted, exaggerated, and false information) gives rise to consumer confusion. The purpose of this study is to investigate the effect of consumer confusion and value on price sensitivity and purchase intention. Data was collected from 228 respondents using a questionnaire that was distributed to consumers living in Seoul and Kyunggi, South Korea. The data was analyzed by factor analysis, regression analysis, and Cronbach's alpha using SPSS 23.0. The results were as follows: First, factor analysis showed the consumer value variable was significantly categorized in altruistic and self-expressive values. All variables (altruism, selfexpression, consumer confusion, price sensitivity, and purchase intention) were shown to have significantly good internal validity. Second, altruistic consumer value was shown to positively affect the purchase intention of eco-friendly fashion products, but self-expressive consumer value had no significant effect. Third, consumer confusion on eco-friendly fashion products had a negative effect on purchase intention. Fourth, altruistic and self-expressive consumer values had no effect on price sensitivity. Fifth, consumer confusion on eco-friendly fashion products positively affect price sensitivity. Sixth, price sensitivity on eco-friendly fashion products had a negative effect on purchase intention. Therefore, fashion firms should provide a certified green mark to consumers to eliminate confusion and deliver the right message without greenwashing. Moreover, fashion firms should develop green marketing strategies that are more focused on altruistic consumers.

Analysis of Breach Mitigation Effect on Levee made with New Substance by Overtopping (신소재 활용 제방의 월류 붕괴 경감 효과 분석)

  • Ko, Dong-Woo;Kang, Joon-Gu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.2
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    • pp.1-8
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    • 2018
  • Levee breaches can result from flooding due to torrential rainfalls, which are linked with recent abnormal climates and the aging of river levees. Breaches have caused enormous property damage and human casualties in lowland areas. Overtopping was found to be the cause for approximately 40% of all cases of breach. In this study, the reasons and mechanisms behind levee breaches were analyzed using hydraulic model testing. The overtopping stability and time delay effect of breaches were assessed for levees made with a new environmentally friendly substance. Image analysis revealed that the total breach time of the levees made with the new substance was about 2.25 times greater than that of an earthen levee. The initial breach rate of a general earthen levee was about 1.43 times higher than that of levees covered with the new substance, and the body collapsed rapidly. The breach mechanisms of levees covered with the new substance were completely different, and it is possible to prevent rapid breaches by mitigation of the breach speed on the slope by resisting overtopping.

Antifouling technology and sea trial verification according to surface treatment (표면 처리를 통한 친환경 방오 기술 및 실해역 평가 연구)

  • Han, Deok-Hyun;Koh, Hyeok-Jun;Jung, Hang-Chul
    • Journal of Surface Science and Engineering
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    • v.55 no.6
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    • pp.425-432
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    • 2022
  • Antifouling paints that inhibit the attachment and contamination of marine organisms mainly use TBT compounds, but because of their toxic components, they cause ecosystem disturbance and environmental destruction problems, so It is necessary to research eco-friendly antifouling paints that are easy to maintain and effective antifouling technologies. In this study, physical surface treatment of silane coating and chemical antifouling technology were applied to the metal surface to secure the stability of the surface of the marine structure and inhibit the attachment and growth of marine organisms. Adhesion of marine organisms was evaluated according to the coating conditions through surface evaluation of the charged material for 15 months in the waters of the west coast of Korea. In accordance with ASTM D6990-05, antifouling properties fouling rates (FR) and physical degradation rates(PDR) were evaluated through visual inspection of the evaluation specimens. As a result of evaluating the antifouling performance of the coated surface, it was confirmed that the antifouling performance was maintained at the 50% level even after 15 months in the sample subjected to physical processing and silane coating.

Experimental Study on Bank Protection System using Fabric Foam (친환경 섬유대공 하천호안공법의 현장계측 연구)

  • Kim, Jin-Man;Cho, Sam-Deok;Choi, Bong-Hyuck;Kwak, Ki-Seok;Woo, Hyo-Seop;Ahn, Hong-Kyu
    • Journal of the Korean Geosynthetics Society
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    • v.3 no.2
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    • pp.3-11
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    • 2004
  • Fabric Foam systems provide a variety of flexible bank protection for open channels and hydrulic structures. The structural performance and durability of conventional bank protection materials such as concrete, gravel, riprap and vegetation can be significantly improved by confining the materials within the cells of Fabric Foam system. This paper presents the results of field and laboratory tests carried out to evaluate the performance of new Fabric Foam System as a Bank Protection. The results of the tests confirmed effect of Fabric Foam System in Bank Protection.

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친환경농업 - 감귤가공부산물을 이용한 산업용 신소재 개발

  • Kim, Sang-Suk
    • 농업기술회보
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    • v.50 no.1
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    • pp.28-29
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    • 2013
  • 매년 감귤 가공량은 감귤 생산량의 20%인 약 12만톤을 차지하고 있으며, 이중 가공부산물이 5~7만톤으로 총 가공량의 약 50%가 발생하고 있다. 부산물 중 약 70%는 사료와 한약재로 재이용되고 있으나, 지난해까지 약 30%가 20억원의 처리비용을 들여 바다에 매립 처리되었다. 그러나 올해부터 런던 협약에 의해 해양투기가 금지되었고 2014년 이후에는 육상폐기물의 해양투기가 전면 금지됨에 따라 시급한 대책이 필요한 실정이다. 이에 국립원예특작과학원에서는 감귤가공부산물을 이용해 기능성 식음료, 바이오겔 등 다양한 제품을 개발했다.

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Evaluation of Erosion Resistance Capability with Adhesive Soil Seeding Media (접착성 식생기반재의 침식저항능력 평가)

  • Seong, Si-Yung;Shin, Eun-Cheol
    • Journal of the Korean Geosynthetics Society
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    • v.14 no.2
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    • pp.71-79
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    • 2015
  • This paper describes vegetation based soil-media hydroseeding measures that have been previously applied as slope revegetation methods show problems such as insufficient binding force, drying, and insufficient organic matter. In particular, in the case of slope faces in regions where scattering is severe, a vicious circle exists in which remarkably low vegetation cover rates and increases in withering rates over time lead to further decreases in vegetation cover rates, which lead to further increases in erosion and scattering. Therefore, in the present study, environment friendly soil stabilizers were applied for resistance against erosion or scattering and engineering evaluations such as long-term immersion tests and flow resistance tests were conducted to determine appropriate mixing ratios. According to the results of long-term immersion tests utilizing environment friendly soil stabilizers and existing greening soil based materials, 100% collapse occurred at 30 hours and 40 days in the case of soil stabilizer mixing ratios of 0% and 2%, respectively. While the original form of the samples remained intact until the experiment was completed in the case of mixing ratios exceeding 4% indicating that 2% or higher soil stabilizer mixing ratios could affect the maintenance of forms even under extreme conditions. In addition, artificial rainfall tests were conducted on 40, 45, and 55 degree slope faces to evaluate the structural stability of vegetation based materials. Flow resistance tests were conducted on soil stabilizer mixing ratios of 0, 4, 8% to evaluate erosion resistance capability. Based on the results of the tests, environment friendly soil stabilizers applied for prevention of scattering or resistance against erosion by rainwater are considered to provide large effects to reduce losses and loss rates showed a tendency of decreasing rapidly when soil stabilizers were mixed.

기술초대석 - 포스트텐션 공법 소개

  • Gang, Do-An;Lee, Seong-Hui
    • 건축구조
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    • v.17 no.1
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    • pp.78-83
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    • 2010
  • 포스트텐션(Post-Tension, PT) 공법은 일반적으로 텐던(tendon)으로 알려진 고강도 강선 또는 봉을 이용하여 콘크리트 또는 다른 재료를 보강하는 방법으로 많은 경우 건설현장의 제약과 건축적인 요구에 의해 다른 공법으로 해결이 불가능한 경우에 대해 대안으로 사용되어 온 공법이다. 또한 포스트텐션 시스템은 조립과 설치에 특수한 지식과 경험이 필요하였다. 그러나 최근 건설시장은 신소재와 신공법의 발달과 함께 친환경 및 경제성에 대한 요구가 증가함에 따라 장스팬 및 층고절감이 가능한 포스트텐션 공법을 일반 건축물에 적용하는 사례가 점차 늘어나는 추세에 있다. 따라서 본 지에서는 3회에 걸쳐 포스트텐션 공법과 설계 및 시공사례 등을 소개하고자 한다. 1. 포스트텐션 공법 소개 2. 포스트텐션 공법의 경제성 비교 3. 포스트텐션공법의 설계사례와 설계시 고려사항

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A Study on the Hydraulic Stability of Soil Mixed with Bio-Polymer (바이오 폴리머가 혼합된 토양의 수리안정성에 관한 연구)

  • Lee, Du Han;Kim, Myounghwan
    • Proceedings of the Korea Water Resources Association Conference
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    • 2019.05a
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    • pp.270-270
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    • 2019
  • 미생물의 부산물인 바이오 폴리머와 혼합된 토양의 수리안정성이 증가하는 효과를 시험하기 위하여 안동 하천실증연구센터 실규모 수로에 물관리연구사업의 "친환경 신소재를 이용한 고강도 제방 기술 개발" 연구과제에서 개발 중인 바이오 폴리머와 혼합된 토양을 도포하여 시험구를 만들고 수리안정성에 관한 실험을 수행하였다. 실험에서는 바이오 폴리머와 마사토를 혼합하여 사용하였으며, 바이오 폴리머와 혼합된 토양은 도포 두께, 식생 유무 등에 따라 구분하였다. 실험은 물의 소류력과 토양손실과의 관계를 통하여 수리안정성을 평가하는 ASTM 시험법을 준용하여 진행하였고, 실험 결과를 통하여 새로 개발된 바이오 폴리머가 토양의 수리안정성을 증가 시키는 것을 확인 할 수 있었다. 특히 바이오 폴리머가 도포된 토양에 식생이 활착되었을 경우 강한 소류력이 발생하는 흐름에서도 토양 손실이 매우 적게 발생하였으며, 이를 통하여 개발된 바이오 폴리머의 성능을 일부 확인 할 수 있었다.

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Experiments for Stability of Tetrapod using Recycled Plastics (폐플라스틱 적용한 친환경 테트라포드 안정성에 관한 실험)

  • Han, Sejong;Kye, Hyung San;Bang, Daesuk;Yun, Jung-hoon
    • Proceedings of the Korea Water Resources Association Conference
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    • 2021.06a
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    • pp.218-218
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    • 2021
  • 최근 환경 문제과 관련하여 건설 분야에서 발생하는 환경적인 부담을 줄이고자 다양한 재활용 소재들에 대한 연구에 대한 관심이 증가하고 있다. 특히 폐기물 중 생활계에서 발생하는 폐플라스틱은 '쓰레기 대란'이라는 사회적 문제로 대두된 사례가 있다. 생활계에서 발생하는 폐비닐은 다양한 조성으로 이루어져 재활용 대상에서 제외되기 때문에 매립 또는 소각되는 플라스틱의 양을 줄이고 재활용율을 늘릴 수 있는 연구가 필요하다. 본 연구는 생활계에서 발생하는 폐비닐을 융용시켜 무기첨가제 등을 한 복합 Alloy를 생산한다. 또한 재생이 가능한 복합 Alloy를 압출 또는 사출 과정을 통해 테트라포드의 형태를 만들 수 있는 Preform으로 가공하는 공정연구 하였으며 이러한 Preform을 해안 및 항만에서 사용되는 콘크리트 피복재에 적용하였을 때 플라스틱 소재와 콘크리트 소재의 비중의 차이로 인해 발생하는 안정성을 정량적으로 평가하는 수리모형 실험를 수행하였다.

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A Study on the Manufacturing and Properties of High Density Polyethylene Composites Filled with Waste Gypsum (부산 석고를 충전한 고밀도폴리에틸렌 복합재료 제조 및 물성 연구)

  • Jin, Woo Seok;Moon, Junho;Kong, Tae Woong;Kim, Hyang Tae;Choi, Sang Hwan;Oh, Jeong Seok
    • Journal of Adhesion and Interface
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    • v.22 no.3
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    • pp.106-110
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    • 2021
  • Recently, research using waste among eco-friendly materials has been attracting attention. In this study, we investigated the physical properties of blends in which high density polyethylene (HDPE) was filled with waste gypsum (CaSO4) generated during fertilizer manufacturing. Composites were prepared by adding the gypsum content 0~20 wt% using a twin screw extruder. The mechanical, rheological, and thermal properties of the composites were evaluated. It was found that the tensile strength of the composites was less than 4.1% compared to that of unfilled HDPE, so there is no significant deterioration in physical properties. The thermal stability of the composites was improved as the gypsum content increased and the gypsum content had little effect on the viscosities of the composites.