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开化手工纸的耐久性研究 被引量:2
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作者 姚晶晶 章若红 +5 位作者 肖建芳 罗婵 黄宏健 闫玥儿 毕宁 唐颐 《造纸科学与技术》 2021年第5期1-7,共7页
通过对6种开化手工纸在湿热老化过程中的聚合度、分子量分布、撕裂度、色差等变化的分析,探究不同原料及工艺对手工纸的老化降解过程及耐久性的影响。结果表明手工纸在湿热老化进程中,产生了较多较低相对分子质量的组分,不仅使纤维素平... 通过对6种开化手工纸在湿热老化过程中的聚合度、分子量分布、撕裂度、色差等变化的分析,探究不同原料及工艺对手工纸的老化降解过程及耐久性的影响。结果表明手工纸在湿热老化进程中,产生了较多较低相对分子质量的组分,不仅使纤维素平均聚合度快速降低,分子量分布也会显著变窄。蒸煮与漂白工艺对手工纸老化降解过程及耐久性具有显著影响。二次弱碱蒸煮漂白工艺制备的手工纸具有较高分子量、较小分子链断裂速率、较高撕裂度保留率和较小色差值,其预期寿命是现代一次蒸煮漂白工艺的2倍以上。将降解速率较快的单一原料与其它耐久性较好的原料混合制备的手工纸会显著减缓单一原料的降解速率,提高纸张的耐久性。 展开更多
关键词 耐久性 制浆工艺 分子量及分子量分布 手工纸
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FTIR Spectroscopy in Cultural Heritage Studies: Non-destructive Analysis of Chinese Handmade Papers 被引量:5
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作者 yan yueer WEN Chenqing +8 位作者 JIN Ming DUAN Lian ZHANG Ruohong LUO Chan XIAO Jianfang YE Zhaoqi GAO Boxu LIU Peng TANG Yi 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2019年第4期586-591,共6页
Chinese handmade papers have been the carriers of paper-based documents, paintings and calligraphies, which are of great importance for historical and cultural heritage studies. This research developed the attenuated ... Chinese handmade papers have been the carriers of paper-based documents, paintings and calligraphies, which are of great importance for historical and cultural heritage studies. This research developed the attenuated total reflectance-Fourier transform infrared(ATR-FTIR) spectroscopic technique for the analysis of Chinese handmade papers. The test was applied to Chinese handmade papers taken from bark, hemp and bamboo groups, followed by papers from ancient books and arts collected in library and museum. Our study indicated tliat FTIR was an efficient analytical method to identify fiber types of library/museum papers of unknown origin. Moreover, information about degree of crystallinity and state of deterioration of cellulosic fibers was learned from FTIR spectra. This research provides a non-destnictive method to study the molecular structure of cellulosic fibers, and guides tlie selection of appropriate Chinese handmade papers for the restoration of cultural heritage objects. 展开更多
关键词 ATTENUATED total reflectance-Fourier TRANSFORM iiifrared(ATR-FTIR) spectrum Cliinese handmade paper Fiber identification CRYSTALLINITY State of DETERIORATION
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