초록

○ 이 연구의 개발결과는 친환경부표 개발사업에 우선적으로 도입하여 효과적이고 성능 좋은 양질의 친환경부표를 양식어민들에게 공급할 계획임
○ 장기적으로는 다각적인 시장개척을 위해 해양공학적인 해양표지, 해양부표, 공사장비의 부력재로 활용할 계획이며, 이를 위해 건설안전 인증 및 항만 및 어항설계기준을 만족하는 성능으로 개량할 계획임
○ 또한 개선된 형상과 기능이 현장에 적합하도록 지속적인 연구와 개발을 통해 상품성을 극대화 할 계획임

(출처 : 보고서 요약서 5p)

Abstract ▼

Ⅳ. Results of research and development
1. Development of prototype
○ We developed prototype products including fixing frame to fix PET bottles and forming, seal caps to maintain buoyancy for PET bottles, environmental-friendly protective substance to prevent microorganism from being stuck, rot

Ⅳ. Results of research and development
1. Development of prototype
○ We developed prototype products including fixing frame to fix PET bottles and forming, seal caps to maintain buoyancy for PET bottles, environmental-friendly protective substance to prevent microorganism from being stuck, rotating ball to reduce twisting of rope after the buoy is installed, and multi-purposed seaweed buoys along with continuous improvement of mold & die and experimental production.
○ As mentioned earlier, we developed 14 and 24 fixing frames with dimension of 4 x 4 and 4 x 6 respectively. At first, we considered its dimension of 3 x 3 and 4 x 3. However, we designed 16 and 24 fixing frames as base buoy. We also designed a large-sized buoyancy material (Extended style and multi-layered) for multi-purposes which is combined with fixing frames and this can be also reinforced for effective buoyancy by combining small-sized PET bottles.
○ We also designed various circular fixing frame including 21 EA, 24 EA and 31 EA for multi purposes and verified applicable aspect for them through prototype production and also developed seaweed-typed fixing frame on custom tailored basis in site by continuous cooperating with Seaweed research center of Jeollanam-do and applied it to sites through various combination of 1x2, 2x2, 2x1, 1x4 and connection methods.
○ We improved durability of the product against impact and ultraviolet lays on site by overlapping one layer of PET bottles on double and tripe rows and especially verified safety through heating experiment to prove its heat-resistance.
○ We developed seal caps by classifying them into general type and high pressure type. General type is designed to have one body of cap while high pressure type is designed by double sealing. Especially, we finished experiment for filler against seal caps to guarantee safe filler. Moreover, we also secured usability and safety so that air can be injected fulfilling various injection pressure on container.
○ We applied a patent by developing anti-pollution substance on PET bottle buoy to improve their functional aspects. We also verified that such anti-pollution substance has significant anti-pollution effect through experiment with other buoys on site.
○ As there is improvement request from site indicating that rope on existing buoy is frequently twisted, we prevented connection rope from being twisted on PET bottle buoy by designing assembled rotating ball
○ By taking into account opinions that although durability of PET bottle buoy fulfilled inspection criteria of environmental-friendly buoys, its recycling image is strong, we improved functions of the product along with its protective aspect by designing a protective cover on it to reduce microorganism,

2. Development of production equipment
○ Since indispensable element to produce PET bottle buoys is automation of product, this research developed forming pressure machine to inject recycling PET bottles and air injection machine to fill air in fixing frame, and finally developed one body-typed production equipment consisting of both forming, air injection and sealing through various test production and design discussion and also significantly improved production volume per a hour.

3. Performance evaluation
○ We carried out hydraulic model experiment to review hydraulic feature to verify various functions and safety of prototypes in Pukyong National University and also performed test for environmental-friendly certificate in Korea Conformity Laboratories(KCL) and protected intellectual property right by applying such development for patents.
○ In addition, we performed hydraulic model experiment to verify shock-resistance for PET bottle buoys based on geometric features of existing products and this product. As the results, box-typed PET bottle buoys is proved to show best shock-resistance feature. Test for environmental-friendly certificate showed results fulfilling various environmental-friendly buoy’s safety and this made it possible to acquire certificate for environmental-friendly buoy.

4. Analysis for economic feasibility
○ We analyzed economic feasibility through market research and technical value evaluation. Market research showed possibility of environmental-friendly buoy market and collected and reviewed various opinions and discussion with experts on site from manufacturers, designers and researchers in terms of strength, weakness and improvement of PET bottle buoys.
○ We also did technical value evaluation against production technology (production equipment) of this PET bottle buoy. As the results, business value for this product is assessed to have value of 162,000,000 WON as of Nov 30, 2015 indicating it has economic feasibility while its technical contribution and value is assessed to be 32.3% and 52,000,000 WON respectively.

5. Promotion for project
○ We actively promoted this product by running exhibition booth in international consortium (International fishery meeting, May, 2016) and also showed site adoptability for researchers and advertised it for people on site by installing PET bottle buoys for test on fish farms on Geoje Island, Tongyoung and Jindo and Wando.

(출처 : SUMMARY 12p)

목차 Contents

• 표지 ... 1
• 제출문 ... 3
• 보고서 요약서 ... 5
• 요약문 ... 7
• Summary ... 11
• CONTENTS ... 17
• 목차 ... 19
• 표목차 ... 21
• 그림목차 ... 23
• 제1장 연구개발과제의 개요 ... 27
• 제1절 연구배경 및 필요성 ... 27
• 1. 연구배경 ... 27
• 2. 필요성 ... 27
• 제2절 연구의 목적 ... 28
• 제3절 연구의 범위 및 주요내용 ... 28
• 1. 연구의 범위 ... 28
• 2. 연구의 주요내용 ... 28
• 제4절 연구의 흐름 ... 28
• 제2장 국내외 기술개발 현황 ... 30
• 제1절 국내외 부유성 해양쓰레기 현황 ... 30
• 1. 전 세계 부유성 해양쓰레기 현황 ... 30
• 2. 우리나라 해양쓰레기 오염실태 ... 34
• 3. 양식용 스티로폼부표의 관리정책 ... 37
• 4. 친환경 부표지원사업의 개요와 문제점 ... 44
• 제2절 국내외 수산부표 기술동향 ... 47
• 1. 국내기술동향 ... 47
• 2. 국외기술동향 ... 58
• 제3장 연구개발수행 내용 및 결과 ... 63
• 제1절 연구개발결과 종합 ... 63
• 1. 과제추진경과 ... 63
• 2. 분야별 주요성과 ... 64
• 3. 과제수행지원 ... 66
• 제2절 분야별 세부연구개발결과 ... 67
• 1. 시제품 개발 ... 67
• 2. 생산장비 ... 88
• 3. 성능평가 ... 93
• 4. 현장실험 ... 116
• 5. 경제성 분석 ... 122
• 6. 홍보 ... 142
• 제4장 목표달성도 및 관련분야에의 기여도 ... 143
• 제1절 연구개발목표 달성도 ... 143
• 제2절 관련분야 기술발전 기여도 ... 144
• 제5장 연구개발결과의 활용계획 ... 145
• 제1절 추가연구의 필요성 ... 145
• 제2절 타 연구에의 응용 ... 146
• 제3절 기업화 추진방안 ... 147
• 1. 기술제품 및 시장개요 ... 147
• 2. 페트병부표 기업화 추진과제 ... 149
• 제6장 연구개발과정에서 수집한 해외과학기술정보 ... 154
• 제7장 참고문헌 ... 155
• 끝페이지 ... 161