研究目的
To use IR spectroscopy to probe PVDF irradiated with γ-rays from a 60Co source and by infrared radiation from a CO2 laser in vacuum.
研究成果
γ-Irradiation of PVDF leads to chain breaking and the formation of unsaturated bonds without affecting the conformational composition, while IR laser irradiation causes a structural transition from β to α conformers and carbonization. The study highlights the different effects of γ and IR irradiation on PVDF.
研究不足
The study was limited to specific irradiation doses and conditions, and the mechanisms of conformational changes under different types of irradiation were not fully elucidated.
1：Experimental Design and Method Selection:
The study involved irradiating PVDF plates with γ-rays and IR laser beams to observe conformational changes using IR spectroscopy.
2：Sample Selection and Data Sources:
Commercial Kynar PVDF plates were used.
3：List of Experimental Equipment and Materials:
A CO2 laser 'LGN-703' with a wavelength of
4：6 μm and power of 40 W, and a γ-irradiation facility with a 60Co source were used. Experimental Procedures and Operational Workflow:
PVDF plates were irradiated under vacuum conditions, and the resulting products were analyzed using IR spectroscopy.
5：Data Analysis Methods:
IR spectra were analyzed to identify conformational changes and the formation of new bonds.
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