Ancient papers, facing the threat of acidification, aging and microbial corrosion, need to be repaired due to their significance of history, art and culture research. In this work, a new and highly efficient approach was proposed to deacidify and strengthen aging paper by in-situ quaternization for the conservation, in which MgO nanoparticles dispersed in hexamethyldisiloxane was coated on the paper surface and the aqueous alkaline solution and the 2, 3-epoxypropyl trimethyl ammonium chloride/isopropyl alcohol/water mixture were sprayed in a closed reactor. Results showed that properties of ageing papers were improved after MSCE-8/2 treatment. The pH value was in the range of 7.5-9.0 and the maximum amount of alkali storage was 220 mmol/Kg. The tensile strength and folding endurance were increased by 28.05% and 80%, respectively. The fluctuation range of brightness and chromatic aberration was 0.14 and 1.27. Moreover, treated paper also had the great anti-bacteria and anti-aging effects.

面对酸化，老化和微生物腐蚀的威胁，由于其历史，艺术和文化研究的重要性，需要对其进行修复。在这项工作中，提出了一种新的高效方法，即通过原位季铵化来对老化纸进行脱酸和强化，以达到保护目的，其中分散在六甲基二硅氧烷中的MgO纳米颗粒被涂覆在纸表面，碱性水溶液和2,3在封闭的反应器中喷雾-环氧丙基三甲基氯化铵/异丙醇/水混合物。结果表明，经MSCE-8 / 2处理后，老化纸的性能得到改善。pH值在7.5-9.0的范围内，最大碱存储量为220mmol / Kg。拉伸强度和耐折性分别提高了28.05％和80％。亮度和色差的波动范围是0.14和1.27。而且，处理过的纸还具有很大的抗菌和抗衰老作用。