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| 碳酸钠对纸质文献超声雾化脱酸效果的研究 |
| Effect of Sodium Carbonate on Ultrasonic Atomization Deacidification of Paper Documents |
| 收稿日期：2022-04-21 |
| DOI：10.11980/j.issn.0254-508X.2022.10.009 |
| 关键词: 超声雾化 碳酸钠 纸质文献 脱酸 |
| Key Words:ultrasonic atomization Na2CO3 paper documents deacidification |
| 基金项目:广州市科技计划项目（项目编号 GZDD201808）。 |
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| 摘要:本研究使用易溶性水相脱酸剂Na2CO3溶液，通过超声雾化对纸质文献进行脱酸处理，对其可超声雾化质量分数范围、超声雾化速率、雾化量、雾化稳定性、雾化粒径、脱酸均匀性等效果进行了探究。结果表明，Na2CO3溶液可超声雾化质量分数范围为0~12%；质量分数高的Na2CO3溶液超声雾化较为困难，超声雾化速率小；Na2CO3溶液质量分数越低，超声雾化速率越不稳定；随Na2CO3溶液质量分数的升高，超声雾化平均粒径递增且变化幅度不大。在实验条件范围内，相对于其他质量分数，质量分数6%的Na2CO3溶液雾化量最大，超声雾化稳定性高，脱酸均匀性最好，脱酸一段时间后，纸质文献仍能保持较好的脱酸效果。 |
| Abstract:In this study， the soluble aqueous deacidification agent Na2CO3 solution was used to deacidify the paper documents by ultrasonic atomization， and the effects of ultrasonic atomization mass fraction range， ultrasonic atomization rate， atomization amount， atomization stability， atomization particle size， deacidification uniformity and so on were explored. The results showed that the ultrasonic atomization mass fraction of Na2CO3 solution ranges was from 0 to 12%. The ultrasonic atomization of Na2CO3 solution with high mass fraction was difficult with a small ultrasonic atomization rate. The lower the mass fraction of Na2CO3 solution， the more unstable the ultrasonic atomization rate. With the increased of the mass fraction of Na2CO3 solution， the average particle size of ultrasonic atomization increased with little change. In the range of experimental conditions， compared with other mass fraction， 6% of Na2CO3 solution had the largest atomization amount， high ultrasonic atomization stability and the best deacidification uniformity.The paper documents could still maintain a good deacidification effect after deacidification for a period of time. |
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