• Title/Summary/Keyword: friendly materials

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Preparation and Characterization of Hydrophobic Coatings from Carnauba Wax/Lignin Blends

  • BANG, Junsik;KIM, Jungkyu;KIM, YunJin;OH, Jung-Kwon;YEO, wanmyeong;KWAK, Hyo Won
    • Journal of the Korean Wood Science and Technology
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    • v.50 no.3
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    • pp.149-158
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    • 2022
  • To realize the infinite possibilities of materials derived from wood, it is necessary to overcome the weak moisture stability of wood. Thus, the development of an eco-friendly hydrophobic coating agent is essential, and of these, woody biomass-based materials are strongly attractive as coatings. In this study, eco-friendly hydrophobic wood coatings were prepared using carnauba wax purified from palm leaves and sprouts, and kraft lignin. The physicochemical properties of the carnauba wax/lignin blends according to the ratio of carnauba wax and lignin were observed by morphology and functional group change. In addition, the coating performance of carnauba wax/lignin blend coatings was confirmed by measuring the contact angle change. It was found that the addition of lignin could accelerate the atomization of wax particles, and that micro-roughness can be realized when applied to the actual wood surface, to ensure that the coating effect over time lasts longer. In addition, it was confirmed that the addition of lignin increases the hydrogen-bond-based interaction with the wood of the coating, thereby providing better coating stability and increasing the durability of the coating solvent under friction. The carnauba wax/lignin paint developed in this way is eco-friendly because all components are made of wood-based raw materials and have an excellent affinity with wood surfaces. Therefore, it is expected to be applicable to the coating process of wood-plastic composites and timber composites.

Study on Upcycling Product Design Process using Recycled Textiles - Focusing on the Design Results of PBL(Problem Based Learning) Process- (재활용 텍스타일을 활용한 업사이클링 상품디자인 프로세스 연구 -문제중심학습(PBL) 과정의 디자인 결과물을 중심으로-)

  • Song, HaYoung
    • Journal of Fashion Business
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    • v.25 no.5
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    • pp.131-148
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    • 2021
  • Upcycling is a sustainable way to recycle waste resources and solve the global problem of environmental pollution. Upcycling is now attracting attention as fiberization and the disposal of waste clothing have become a serious issue. However, the customer's willingness to purchase upcycled products should be increased by propagating that the product value of a reborn commodity is of high value; these products are meant for new purposes and prepared with recycled materials. In this study, we created 11 designer items by applying an eco-friendly concept in the design process of upcycled textiles and products. From 2020 to 2021, a PBL(Problem Based Learning) curriculum was taught in design planning classes. The final 11 design items were derived after developing an eco-friendly product design for upcycled textiles. These final items were as follows: 5 fashion bags, 3 dog products, 1 clothing, 1 fashion accessory, and 1 sanitary mask design. In order to develop only one aesthetic design idea for upcycling, we considered the following features: user-centered convenience, functionality, and practicality. Then, tie-dye, drawing, patchwork, and embroidery were used to create innovative design items. The product design of recycled materials is based on high functionality, waterproofing, and the use of organic natural materials. The results of this study indicate that the creative product design of upcycling has contributed to a sustainable and eco-friendly environment. Related research studies must be conducted for innovating the continuous design process of the future.

Effect of Cook's Environmental Awareness and Eco-friendly Attitude on Food Safety Pursuit Behavior (조리사의 환경의식과 친환경태도가 식품안전추구행동에 미치는 영향)

  • Lee, Jong-Ho
    • Culinary science and hospitality research
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    • v.24 no.3
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    • pp.60-70
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    • 2018
  • Rapid economic growth brought material affluence and convenience, but it also has caused a negative issue, such as environmental damage. Therefore, this research holds the purpose of grasping structural influencing relationship of environmental awareness of cook, which is taking an important role in food safety among workers in hotel restaurants with eco-friendly attitude and food safety pursuit behavior. To achieve the purpose, collected materials were tested for the fidelity, organic causation and control effect, using Structural Equation Modeling for frequency analysis, confirmatory factor analysis, credibility analysis and hypothesis testing with SPSS (V23.0) and AMOS (V21.0) programs. Environmental awareness of hotel cook has causation with eco-friendly attitude, and the attitude has meaningful causation with food safety pursuit behavior. That is, it proved that cooks are taking care of their job carefully from the pre-cooking stage while most of people ignore the storing stage. The result shows not only hotel's own training session, cook's level of consciousness on the food safety and they are working with high sense of responsibility. The limitation of this research is that it only conducted with cooks of deluxe hotels in Busan, and it could not include various variables about environmental awareness. Therefore, it is expected that the lacking contents to be dealt by a follow-up study.

A Study on Sustainable Design Characteristics of Community Spaces in Apartment Housing (공동주택 커뮤니티 공간의 지속가능한 디자인 특성에 관한 연구)

  • Lee, Song Hyun;Hwang, Yeon Sook
    • KIEAE Journal
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    • v.8 no.6
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    • pp.79-87
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    • 2008
  • The purpose of this study is to identify the planning features of apartments that are people-friendly, nature-friendly and ones that improve the quality of the apartments through sustainable design characteristics found in the apartment community space. This study found the sustainable design characteristics through the case of 8 environment-friendly apartment in the Seoul-Gyeunggi area. Sustainable design was categorized into three areas a) social sustainability b) economic sustainability c) ecological sustainability. The major findings are summarized as follows: First, socially sustainable design which included plans for various types of squares, spaces for pedestrians showed high application of universal design plans. While, plans to maximize open spaces that facilitate the social exchanges among residents showed low application. Second, economically sustainable design showed high application in terms of access to public transportation and bicycle storage facilities. However, planning factors such as alternative energy facilities, recyclable materials, reuse of rainwaterand heavy water showed low application. Third, environmentally sustainable design included high application of promenades, artificially created green space and various types of water space. On the other hand, nature study centers, biotope and environment friendly parking space showed low application.

Green Marketing Strategies and Willingness to Pay for Environment-Friendly Agrieultural Products in the Metropolitan Area (친환경농산물의 지불의사금액 분석과 그린 마케팅 전략 - 수도권 소비자를 중심으로 -)

  • Heo, Seung-Wook;Kim, Ho
    • Korean Journal of Organic Agriculture
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    • v.12 no.3
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    • pp.317-331
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    • 2004
  • Foci of this thesis arc an estimation of willingness to pay and an establishment of green marketing strategics for environment-friendly agricultural products(EFAR). Estimations of willingness to pay for grain, vegetables, fruit and processed food-stuffs arc respectively 20.6%, 20.2%, 19.3% and 17.2% higher than agricultural products produced by conventional farming method. And a green mark6ting mix for EFAP is as follows; Erst, a product strategy focuses on producing safe and high-quality foods by environment-friendly agriculture(EFA) to point to consumer’s health and desire for environmental preservation. Second, in a price strategy, the balance of three factors should be kept, namely the environmental value the true quality as food materials and the price of EFAP. Third, a place strategy is to reduce waste matters, resource and energy uses in marketing chain, and to simplify marketing channels. Also, it is necessary to choose the marketing channel for price discrimination. Fourth, a promotion strategy make use of programs that emphasize the multi-function of EFA.

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A Study on the Development of Uniform Design by Using the Hanji Thread Fabric - Focusing on the Music Hall Uniform - (한지사 직물을 이용한 유니폼 디자인 개발에 관한 연구 - 음악홀 유니폼을 중심으로 -)

  • Beom, Seo-Hee;Lee, Hyun-Og;Shon, Young-Mi
    • Fashion & Textile Research Journal
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    • v.12 no.2
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    • pp.149-155
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    • 2010
  • The advanced and complicated modern society recognizes image creation based on the identity of the global competitive age as the important means. The requirement for a new vision to the globally environmental problem has affected on design so that as environmentally-friendly products and technologies have been developed and original expression modes have been appeared which the medium of paper which is natural material, paper has been highlighted newly. Hanji made of mulberry fiber, a bast fiber of mulberry is a representative environment-friendly natural fiber. In addition, it has various functions similar to those of yellow earth such as emission of far infrared rays, antibiosis, deodorization, fast dry ability of sweat, and simple dyeing ability. It is Hanji threads that are produced from various processes of Hanji materials. Therefore, hanji threads are able to be both woven and knitted still remaining Hanji's excellent characteristics. In addition, it is light, bio-degradable, durable and washable, and it is an environment friendly product with the distinguished texture and sensitivity. Under the concept of 'Circle' designed the uniforms of music hall to inform that the uniforms as a media representing music hall represents the unique Sori Arts Center of Jeollabuk-do traditional style.

Development of House Dress Design Using Kenaf, an Eco-friendly Material (친환경 소재 케나프(Kenaf)를 활용한 실내복 디자인 개발)

  • Chung, Sham-Ho;Jang, Yun-Seon;Moon, Sun-Jeong
    • Journal of the Korean Society of Costume
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    • v.60 no.3
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    • pp.44-55
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    • 2010
  • This study was intended to develop some lounge wear ensembles of emotional design by using an eco-friendly material, Kenaf fabrics in line with the contemporary trend of valuing health and environment. With market survey on commercially available indoor clothing ensembles in the market, the designs of lounge wear ensembles being on sale via on/off-line routes were analyzed. Provided by Korea High Tech Textile Research Institute, Kenaf fabrics were employed to make 4 pieces of lounge wear for women (cardigan, T-shirt, slacks, vest) and 4 ones for toddlers. In addition, some housewives in their thirties or forties who lived in Seoul were asked to respond to a series of questionnaires concerning the prototypes made directly in order to evaluate consumer satisfaction with them. Although the consumer awareness of Kenaf fabrics is very low as far, this attempt to present the designs of lounge wear made of Kenaf to young housewives who have a lot of concern for and purchase experiences of eco-friendly materials is meaningful in the light of the possibility to popularize Kenaf which is not familiar as a textile material yet.

A Study on the Environmental control methods Expression in Korean Traditional Residence - Focusing on the courtyard-type - (한국전통 주거건축에 나타난 환경조절방식에 관한 연구 - 중정형을 중심으로 -)

  • Lee, Sun-Min;Hur, Bum-Pall
    • Korean Institute of Interior Design Journal
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    • v.19 no.3
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    • pp.128-135
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    • 2010
  • In this paper, traditional residential architecture in South Korea appear to approach environmental regulation as part of ecological architecture of regional climate controlled environment, according to the characteristics and spatial arrangement, and material to the environment was described as a controlled manner. The scope of this study was not large scale housing construction from traditional chusagotaek, yunjeunggotaek, yangjindang, dokrakdang target was the case. Focusing on examples extracted from Korea first eco-friendly characteristics of traditional residential architecture is an extension of nature to explore space and yard space, and South Korea by way of environmental control that appears in traditional architecture, waterproof, moisture, solar radiation, sunlight, ventilation and air Attributes such as environmental regulation and environmental regulation of space, place and manner of materials were described. Korea's research through more traditional residential architecture of the environmental control and a wide range of environmentally friendly eco-construction was that appeared natural to use energy efficiently, it had been available. Later appeared on the Korea traditional architecture through research on environmental control of environmentally friendly ways to navigate and take advantage of the elements, through continuous research and eco-friendly construction to realize the traditional South Korea could provide a prototype of the modern, I thought I'd had.

Development of an Eco-friendly Plasticizer using Crude Glycol Derived from the Biodiesel Process (바이오디젤부산물인 폐글리세롤을 이용한 친환경 가소제의 개발)

  • Kang, Soo-Jung;Bae, Sung-Jae;Jin, Dae-Eon;Kim, Jinhwan
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.24 no.3
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    • pp.365-370
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    • 2014
  • Objectives: The major objective is development of an eco-friendly non-phthalate plasticizer using crude glycol derived from the biodiesel process. Methods: Glycerol monolaurate(GML) was synthesized from glycol and triglyrcerides. Glycerol diacetomonolaurate(GDAL) was synthesized from GML and acetic acid. Results: The synthesis of the GDAL plasticizer was measured with nuclear magnetic resonance spectroscopy(NMR). Mechanical properties were measured by universal testing machine(UTM) and the experimental values were compared with phthalate plasticizers such as dioctyl phthalate(DOP). In particular, the values for tensile strength and elongations with GDAL were higher than with DOP. Conclusions: We confirmed the development of an eco-friendly non-phthalate plasticizer by NMR. Based on our results, applicability for food and drug packaging materials was found.

Fabrication and Performance Analysis of Environment Friendly Double Core Bullets for Small Arms (2중 코어 구조의 소화기용 친환경 탄자 제조 및 특성 분석)

  • Hong, Jun-Hee;Jang, Tak-Soon;Song, Chang-Bin;Kang, Dae-Wha
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.3
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    • pp.345-352
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    • 2011
  • This paper focuses on the properties analysis of 9mm bullet dual structure core to substitute current lead core by environment-friendly combination of W-Cu-Ni system high density composite materials. So the four combination samples were made of dual core with the different center of gravity location backward or forward compare to that of lead type bullet, and we experimented about the performance of 9mm bullet dual structure core. In the experimental results, the outer shape of core of four environment friendly samples on the target maintain marginally, while the current lead core bullets are completely crushed after hitting the target. The penetration depth of environment friendly samples excel seven times to lead type bullet and the three out of four samples with forward adjusted center of gravity penetrate deep as twice as ones backward. The impact tolerance of all four samples satisfies military specification, however, more firing tests are required to improve reliability of scattering distribution.