초록 ▼

대표적인 포장재로 소비량이 많은 폴리스티렌, 염화비닐수지, 나이론, 폴리카보네이트를 대상으로 5∼300 kGy 의 방사선을 조사하여, 그로부터 생성되는 스티렌(styrene), 염화비닐(vinyl chloride), ${\varepsilon}$-카프로락탐(${\varepsilon}$-caprolactam), 비스페놀 A(bisphenol A) 모노머의 잔류량을 조사하고, 방사선 조사량과 모노머 잔류량과의 상관관계를 고찰한다.
1) 폴리스티렌, 염화비닐수지, 나이론, 폴리카보네이트 등의 합

대표적인 포장재로 소비량이 많은 폴리스티렌, 염화비닐수지, 나이론, 폴리카보네이트를 대상으로 5∼300 kGy 의 방사선을 조사하여, 그로부터 생성되는 스티렌(styrene), 염화비닐(vinyl chloride), ${\varepsilon}$-카프로락탐(${\varepsilon}$-caprolactam), 비스페놀 A(bisphenol A) 모노머의 잔류량을 조사하고, 방사선 조사량과 모노머 잔류량과의 상관관계를 고찰한다.
1) 폴리스티렌, 염화비닐수지, 나이론, 폴리카보네이트 등의 합성수지에서 스티렌 (styrene), 염화비닐(vinyl chloride), ${\varepsilon}$-카프로락탐(${\varepsilon}$-caprolactam), 비스페놀 A(bisphenol A) 모노머 잔류량을 파악하기 위한 최적의 분석방법 검색
2) GC(gas chromatography), GC/MS(gas chromatography/mass spectroscopy), HPLC(high performance liquid chromatography) 등 분석설비 설치 및 최적 분석 조건 설정
3) 폴리스티렌, 염화비닐수지, 나이론, 폴리카보네이트 등의 합성수지에 5∼300 kGp의 방사선을 조사하여 재질내의 해당 모노머 잔류량 분석
4) 부가중합 또는 축합중합, 감사선 조사량과 모노머 잔류량과의 상관관계 등 고찰

Abstract ▼

Food can be treated with ionizing radiation to reduce microbial contamination, to inhibit sprouting / ripening or to control insect infestation. Currently, interest about the food irradiation is increasing due to improvement in the food preservation and the food processing technique. And the food pr

Food can be treated with ionizing radiation to reduce microbial contamination, to inhibit sprouting / ripening or to control insect infestation. Currently, interest about the food irradiation is increasing due to improvement in the food preservation and the food processing technique. And the food products are usually irradiated in their final packages in order to prevent recontamination. Several research results about the effect of food irradiation have been reported, but any research about the irradiation of the food packaging materials has not been conducted in Korea. Therefore we need to study about the detection of hazardous compounds from food packaging materials and the change of physical properties or thermal properties after irradiation. Target packaging materials, - polystyrene, polycarbonate, nylon, poly(vinylchl-oride) - which are widely used as the food packaging material are prepared. After these target materials were irradiated at the dose rate of 5∼200 kGy, we analyzed the quantity cf monomer residues - styrene monomer, bisphenol-A, ${\varepsilon}$ -caprolactam, vinyl chloride - which are induced from target materials. In the pretreatment step, we used the solvent extraction method or headspace analysis. The GC/MS (Gas Chromatography / Mass Spectrometry) instrument, SIM mode. was used as the system of quantitative analysis. In the analysis of the change of physical properties or thermal properties after irradiation, we used PET film as the target packaging material. The change of the molecular weight and the reaction between high molecule chains were analyzed by the IV (Intrinsic viscosity). And we can get the information about the crystallization or decomposition in the inner PET film through the DSC (differential scanning calorimetry) and the TGA (thermal gravimetric analysis), Moreover, we checked the basic film properties, the mechanical properties - the tensile strength and the elongation - and the quality factors - color and transparency.

목차 Contents

• 표지...1
• 제출문...2
• 요약문...3
• SUMMARY...5
• 목차...7
• 제 1 장 서론...8
• 제 2 장 국내${\cdot}$외 기술개발 현황...10
• 제 3 장 연구개발수행 내용 및 결과...17
• 제 4 장 연구개발목표 달성도 및 대외기여도...35
• 제 5 장 연구개발결과의 활용성과 및 계획...37
• 제 6 장 기타 중요변경사항...38
• 제 7 장 참고문헌...39
• 연구과제(세부과제) 요약서...43