纸质文物油渍的模拟及清洗剂的研究

The Study on the Cleaning Effect of Different Cleaning Agents on the Stimulated Dirt and Oil Stains

通过模拟油渍,使用不同清洗剂对模拟油渍进行清洗,并通过比较纸样p H值、抗张强度、色差、白度、撕裂度和耐折度等指标的变化评价清洗效果。结果表明,质量分数为1.2%的十二烷基硫酸钠对油渍的清洗效果最好,清洗后纸张白度明显上升、p H值上升;纸张的撕裂度、耐折度和抗张强度有所下降;清洗后油渍红外光谱特征峰减弱,油渍明显变浅,基本达到了油渍的清洗要求。

This article presents the cleaning effect of different cleaning agents on the stimulated dirt and oil stains by comparing the pH value, tensile strength, colour difference, whiteness, tearing resistance and folding strength. Results indicated that 1.2% sodium dodecyl sulfate performed the best： whiteness and pH value of the paper increased obviously; while the tensile strength, folding strength and tearing resist- ance decreased less. It concluded that sodium dodecyl sulfate demonstrated an acceptable cleaning effect on the oil stains.