Study on the Effect of Ultraviolet Light on the Deterioration of Silk Fabrics Unearthed in Different Burial Environments
Modern analytical techniques such as scanning electron microscopy,Fourier infrared,thermogravimetric analysis and amino acid analysis were used to explore the degradation differences of silk fabrics under ultraviolet illumination simulating different burial environments.The results showed that:ultraviolet light irradiation results in brittle fracture,increased yellowness,decreased breaking strength,increased random crimping/β-folding ratio,decreased maximum thermal decomposition rate,and decreased tyrosine and macroside amino acid content.The degradation effects of ultraviolet light on silk fabrics in different burial environments are different,and the damage to alkaline burial environment and aerobic burial environment is more serious.Therefore,the preservation conditions of silk fabrics in museum collections should be refined according to the differences in burial environment.Special attention should be paid to the ultraviolet light protection of silk fabrics unearthed in aerobic environment and alkaline environment.In addition,the decrease of the temperature of the maximum thermogravimetric decomposition rate of silk fabrics has a linear relationship with the Ultraviolet light irradiation time,which can be used to quantify the deterioration degree of silk fabrics.
万方数据
维普
