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Multifunctional nanocomposites for paper conservation

机译:用于纸张保护的多功能纳米复合材料

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摘要

Upon aging, paper documents and books become progressively damaged. Paper deacidification is a fundamental conservation intervention. In this study, we report on the use of nanoparticles of titanium dioxide (TiO_2) and magnesium hydroxide (Mg(OH)_2) associated with hydroxyethylcellulose (HEC) to inhibit acidification, photo-induced degradation, and biodeterioration of paper. With the aid of ultrasound, Mg(OH)_2 nanoparticles with a narrow size distribution can be obtained through homogeneous precipitation in water. Furthermore, to demonstrate the efficacy of the nanocomposite and the performance of treated and untreated paper, photo- and thermal-induced degradation is discussed. The results show that using the controlled double-jet precipitation (CDJP) it is possible to synthesize Mg(OH)_2 particles with a narrow size distribution (18-87 nm). The nanocomposite of Mg(OH)_2-TiO_2-HEC increases the durability of paper by imparting fungal growth resistance (D = 34.6 mm), moderate alkalinity (pH = 8.4), mechanical reinforcement (from 817-896 N/m), and UV protection. Additionally, there is a slight color difference (AP = 0.8) between the treated and untreated paper. Both photodegradation and thermal degradation indicate that the paper treated with this nanocomposite (Mg(OH)_2-TiO_2-HEC) has increased stability.
机译:老化后,纸质文档和书籍会逐渐受到损坏。纸张脱酸是一项基本的保护措施。在这项研究中,我们报告了与羟乙基纤维素(HEC)结合使用二氧化钛(TiO_2)和氢氧化镁(Mg(OH)_2)的纳米粒子来抑制纸张的酸化,光致降解和生物降解。借助于超声,可以通过在水中均匀沉淀来获得具有窄尺寸分布的Mg(OH)_2纳米颗粒。此外,为了证明纳米复合材料的功效以及经过处理和未经处理的纸张的性能,讨论了光诱导和热诱导降解。结果表明,使用受控的双喷射沉淀(CDJP),可以合成具有窄粒度分布(18-87 nm)的Mg(OH)_2颗粒。 Mg(OH)_2-TiO_2-HEC的纳米复合材料通过赋予真菌生长阻力(D = 34.6 mm),适度的碱度(pH = 8.4),机械增强(从817-896 N / m)和增加纸的耐久性。防紫外线。此外,在已处理和未处理的纸张之间存在轻微的色差(AP = 0.8)。光降解和热降解都表明用这种纳米复合材料(Mg(OH)_2-TiO_2-HEC)处理的纸张具有更高的稳定性。

著录项

  • 来源
    《Studies in conservation》 |2013年第1期|23-29|共7页
  • 作者单位

    College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009,People's Republic of China;

    College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009,People's Republic of China;

    Nanjing Museum, Nanjing 210016, People's Republic of China;

    Nanjing Museum, Nanjing 210016, People's Republic of China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    paper; nanocomposite; Mg(OH)_2; TiO_2; deacidification;

    机译:纸;纳米复合材料Mg(OH)_2;TiO_2;脱酸;
  • 入库时间 2022-08-17 23:57:41

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