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Application of CS-CHO-g-PMMA emulsion in paper reinforcement and protection
Nordic Pulp & Paper Research Journal ( IF 1.2 ) Pub Date : 2020-11-18 , DOI: 10.1515/npprj-2020-0044 Xuemei Wang 1 , Yingping Qi 2 , Fan Wu 1 , Yongfeng Shen 2 , Duanhui Gao 1 , Hua Li 1
Nordic Pulp & Paper Research Journal ( IF 1.2 ) Pub Date : 2020-11-18 , DOI: 10.1515/npprj-2020-0044 Xuemei Wang 1 , Yingping Qi 2 , Fan Wu 1 , Yongfeng Shen 2 , Duanhui Gao 1 , Hua Li 1
Affiliation
Abstract Paper has a high value of culture, history and scientific research as the cultural carrier of historical inheritance. However, with the passage of time and the change of environment, many paper files are aging and damaged. Therefore, it is of great significance to carry out the protection of paper archives. Chitosan, a natural material, has a good compatibility with paper fibers. In this paper, chitosan (CS) was modified by epoxy cyclohexane (CHO) and methyl methacrylate (MMA) to prepare CS-CHO-g-PMMA emulsion. CS-CHO-g-PMMA was applied to paper protection, and the effects of CS-CHO-g-PMMA on heat aging resistance, reversibility and acid-base resistance were investigated. In order to improve the mechanical strength of paper, CS-CHO-g-PMMA and phosphate ester starch (HPDSP) were blended to determine the optimum ratio. The results showed that the degradation rate of paper sample was slowed down obviously and the coating had certain reversibility. Acid-base resistance experiment showed that CS-CHO-g-PMMA could effectively resisit corrosion of external acid-base to protect the paper. The best combination ratio between CS-CHO-g-PMMA and HPDSP was: m (CS-CHO-g-PMMA): m (HPDSP) = 5:2. Under this compound ratio, the performance indexes of the paper met the requirements, conforming to the “repair as old, keep the original” and other requirements.
中文翻译:
CS-CHO-g-PMMA乳液在纸张加固保护中的应用
摘要 论文作为历史传承的文化载体,具有很高的文化、历史和科学研究价值。然而,随着时间的推移和环境的变化,许多纸质文件已经老化和损坏。因此,开展纸质档案的保护工作具有重要意义。壳聚糖是一种天然材料,与纸纤维具有良好的相容性。本文采用环氧环己烷(CHO)和甲基丙烯酸甲酯(MMA)对壳聚糖(CS)进行改性制备CS-CHO-g-PMMA乳液。CS-CHO-g-PMMA应用于纸张保护,研究了CS-CHO-g-PMMA对耐热老化性、可逆性和耐酸碱性能的影响。为提高纸张的机械强度,将CS-CHO-g-PMMA与磷酸酯淀粉(HPDSP)共混,确定最佳配比。结果表明,纸样的降解速度明显减慢,涂层具有一定的可逆性。耐酸碱实验表明,CS-CHO-g-PMMA能有效抵抗外界酸碱腐蚀,保护纸张。CS-CHO-g-PMMA 与 HPDSP 的最佳组合比例为:m (CS-CHO-g-PMMA): m (HPDSP) = 5:2。在此配比下,纸的各项性能指标均达到要求,符合“修旧,保持原样”等要求。m (HPDSP) = 5:2。在此配比下,纸的各项性能指标均达到要求,符合“修旧,保持原样”等要求。m (HPDSP) = 5:2。在此配比下,纸的各项性能指标均达到要求,符合“修旧,保持原样”等要求。
更新日期:2020-11-18
中文翻译:
CS-CHO-g-PMMA乳液在纸张加固保护中的应用
摘要 论文作为历史传承的文化载体,具有很高的文化、历史和科学研究价值。然而,随着时间的推移和环境的变化,许多纸质文件已经老化和损坏。因此,开展纸质档案的保护工作具有重要意义。壳聚糖是一种天然材料,与纸纤维具有良好的相容性。本文采用环氧环己烷(CHO)和甲基丙烯酸甲酯(MMA)对壳聚糖(CS)进行改性制备CS-CHO-g-PMMA乳液。CS-CHO-g-PMMA应用于纸张保护,研究了CS-CHO-g-PMMA对耐热老化性、可逆性和耐酸碱性能的影响。为提高纸张的机械强度,将CS-CHO-g-PMMA与磷酸酯淀粉(HPDSP)共混,确定最佳配比。结果表明,纸样的降解速度明显减慢,涂层具有一定的可逆性。耐酸碱实验表明,CS-CHO-g-PMMA能有效抵抗外界酸碱腐蚀,保护纸张。CS-CHO-g-PMMA 与 HPDSP 的最佳组合比例为:m (CS-CHO-g-PMMA): m (HPDSP) = 5:2。在此配比下,纸的各项性能指标均达到要求,符合“修旧,保持原样”等要求。m (HPDSP) = 5:2。在此配比下,纸的各项性能指标均达到要求,符合“修旧,保持原样”等要求。m (HPDSP) = 5:2。在此配比下,纸的各项性能指标均达到要求,符合“修旧,保持原样”等要求。