논문 상세보기
pp.546-555
This study investigates the effects of electron beam irradiation (0-125 kGy) on the physical properties of polypropylene (PP) resin. Changes in thermal stability and crystallinity were analyzed using DSC and TGA, while FT-IR confirmed the introduction of polar groups and structural modifications. Colorimetric analysis (CIE-Lab) demonstrated that the color difference (ΔE) and yellowing index (YI) increased progressively with irradiation dose, corresponding to the formation of oxidized chromophoric species. Gel Permeation Chromatography (GPC) and Gas Chromatography–Mass Spectrometry (GC-MS) revealed a clear reduction in molecular weight and the formation of low-molecular volatile compounds, providing direct evidence of chain scission processes. Contact angle measurements showed that electron beam treatment altered surface energy and wettability, reflecting a transition from non-polar to moderately polar surface characteristics. Overall, electron beam irradiation induces simultaneous molecular and physical changes in PP, influencing its heat resistance, mechanical integrity, color stability, and surface properties. These findings contribute to a deeper understanding of radiation-induced polymer modification and highlight the potential of controlled electron beam processing as an effective method for tailoring the structure and functionality of polyolefin-based materials for advanced industrial applications.
1. 서 론
2. 실험 방법
2.1. 시료 준비
2.2. 전자선 조사
2.3. 열적 특성 분석
2.4. 분광학적 분석(Spectroscopic Analysis)
2.5. 색차 및 광학 분석(Optical and Color Analysis)
2.6. 결정성 및 분자량 분포 분석(Crystallinity Distribution& Molecular Weight Distribution)
2.7. 휘발성 부산물 및 분해 생성물 분석(Volatile DecompositionAnalysis)
2.8. 표면 및 열전도 특성(Surface and Thermal TransportProperties)
3. 결과 및 고찰
3.1. 열적 특성 분석
3.2. 분광학적 분석
3.3. 색차 측정
3.4. 화학 저항성 및 분자량 분포 분석
3.5. 휘발성 부산물 및 분해 생성물 분석
3.6. 표면 및 전기적 특성
4. 결 론
References
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