| 余晨,陶亚辉,蔡林洁,汪航舰,包宇炀,陈天影,刘翔,唐艳军.加压雾化硼砂用于纸张脱酸修复的研究[J].中国造纸,2025,(8):187-195 |
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| 加压雾化硼砂用于纸张脱酸修复的研究 |
| Pressurized Atomized Borax for Paper Deacidification and Restoration |
| 收稿日期:2025-03-03 修订日期:2025-04-01 |
| DOI:10.11980/j.issn.0254-508X.2025.08.025 |
| 关键词: 加压雾化 硼砂 微米级雾滴 温和脱酸 |
| Key Words:pressurized atomization borax micron-scale droplets mild deacidification |
| 基金项目:宁波市重点研发计划暨“揭榜挂帅”项目(2023Z142)。 |
| 作者 | 单位 | 邮编 | | 余晨* | 浙江理工大学生物基纤维材料全国重点实验室,浙江杭州,310018 | 310018 | | 陶亚辉 | 浙江理工大学生物基纤维材料全国重点实验室,浙江杭州,310018 | 310018 | | 蔡林洁 | 浙江理工大学生物基纤维材料全国重点实验室,浙江杭州,310018 | 310018 | | 汪航舰 | 宁波八益集团有限公司,浙江宁波,315048 | 315048 | | 包宇炀 | 宁波八益集团有限公司,浙江宁波,315048 | 315048 | | 陈天影 | 浙江理工大学生物基纤维材料全国重点实验室,浙江杭州,310018 | 310018 | | 刘翔 | 浙江理工大学生物基纤维材料全国重点实验室,浙江杭州,310018 | 310018 | | 唐艳军* | 浙江理工大学生物基纤维材料全国重点实验室,浙江杭州,310018 | 310018 |
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| 摘要:本研究采用加压雾化硼砂对文献进行脱酸处理,以实现纸质文献的持久保护。首先,通过加压雾化的方法将硼砂转化为微米级雾滴,然后作为脱酸剂应用于纸张脱酸处理。其次,重点研究了脱酸时间、硼砂浓度和通入气压对纸张脱酸效果的影响规律。结果表明,在脱酸时间48 min、硼砂浓度10 g/L、通入气压0.75 kg/cm2的条件下,处理后的纸张pH值从3.84提高到7.61,纸张的裂断长和撕裂指数分别由原来的1.26 km和2.10 mN·m2/g提高到1.46 km和2.65 mN·m2/g。同时,扫描电子显微镜(SEM)观察显示,脱酸处理后纸张纤维表面变得更加光滑,由于雾滴能够长时间悬浮在空气中,该方法在纸张的大批量脱酸上也有一定的应用前景。 |
| Abstract:This study employed pressurized atomized borax for the deacidification treatment of documents to achieve long-lasting preservation of paper-based documents. Initially, borax was transformed into micron-sized droplets through the pressurized atomization method, which were then applied as a deacidifying agent for paper deacidification. The study primarily focused on investigating the influence patterns of deacidification time, borax concentration, and applied air pressure on the deacidification effectiveness of paper. The results showed that under the conditions of a deacidification time of 48 minutes, a borax mass concentration of 10 g/L, and an applied air pressure of 0.75 kg/cm², the pH value of the treated paper increased from 3.84 to 7.61. Moreover, the breaking length and tear index of the paper rose from the original values of 1.26 km and 2.10 mN·m²/g to 1.46 km and 2.65 mN·m²/g, respectively. Additionally, scanning electron microscopy (SEM) observations revealed that the surface of the paper fibers became smoother after deacidification treatment. Since the droplets can remain suspended in the air for an extended period, this method also holds certain application prospects for large-scale deacidification of paper. |
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