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空气中的SO_2气体对丝织品文物有一定的危害作用。课题分别试验了各种丝织品试样在50μmol/mol的SO_2气体下不同时间的影响变化。通过色差分析,红外分析,氨基酸分析及XRD分析对丝织品进行表征,得到了40℃下50天的干热老化丝织品试样在50μmol/mol的SO_2气体下,随着试验时间的延长,其色差变化最大。经SO_2气体处理的丝织品试样的氨基酸成分发生改变,结晶度也变大,老化程度加大。本研究结果可为保存和保护丝织品文物提供依据。
The SO_2 gas in the air has a certain harmful effect on the silk cultural relics. Subjects were tested various silk fabric samples at 50μmol / mol SO_2 gas changes in different time. The silk fabrics were characterized by colorimetric analysis, infrared analysis, amino acid analysis and XRD. The results showed that under the condition of 50μmol / mol SO 2 gas, the color temperature difference maximum. The SO2 gas treated silk samples changed the amino acid composition, the crystallinity also increased, the degree of aging increased. The results of this study can provide the basis for the preservation and protection of silk relics.