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一、研究背景。影像媒体(包括影片、缩微片、遥感航测片、录像带等)在长期保存中因水解而衰变。根据影像保存实践和大量的理论研究证实,醋酸纤维酯片基的胶片在常温常湿(温度21~24℃、相对湿度50%)条件下大约30年,像香港那样的湿热气候条件只有五六年,就...
First, the research background. Image media (including videos, microfiche, telemetry aerial videos, videotapes, etc.) decay due to hydrolysis during long-term storage. According to the practice of image preservation and a large number of theoretical studies, it is confirmed that cellulose acetate film is about 30 years under normal temperature and normal humidity (temperature 21 ~ 24 ℃, relative humidity 50%), humid and hot climatic conditions like Hong Kong are only five or six Year, on ...