Aging Resistance Evaluation of Aged Paper Reinforced with Different Nanocelluloses  

作　　者：Xian Cao Bei He Jianlin Wang Chunhui Zhang Donglin Tang Qingyou Liang Chuanfu Liu Huiming Fan Junli Ren 

机构地区：[1]State Key Lab of Pulp and Paper Engineering,School of Light Industry and Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640,China [2]Lingnan Literature Preservation Research Center,South China University of Technology,Guangzhou,Guangdong Province,510640,China [3]School of Materials Science and Engineering,South China University of Technology,Guangzhou,Guangdong Province,510640,China [4]Analytical and Testing Center,South China University of Technology,Guangzhou,Guangdong Province,510640,China

出　　处：《Paper And Biomaterials》2023年第3期1-10,共10页造纸与生物质材料（英文）

基　　金：supported by the Fundamental Research Funds for the Central Universities of South China University of Technology(SCUT),China(No.2022ZYGXZR106);Science and Technology Plan Special Project of Guangzhou,China(No.GZDD201808).

摘　　要：Paper documents experience severe acidification and embrittlement.Nanocellulose is an excellent reinforcement material for paper documents owing to its compatibility and excellent mechanical strength.However,little research has been conducted on the aging resistance of nanocellulose-reinforced paper.In this study,six types of nanocelluloses were used to reinforce aged paper.The reinforcement and anti-aging performances were evaluated,and the anti-aging mechanism was further clarified.Nanocellulose with a high degree of polymerization can better enhance aged paper,and non-chemical nanocellulose also shows better anti-aging performance,such as nanocellulose prepared by mechanical or biological methods.However,nanocellulose prepared using chemical methods exhibits poor reinforcement and anti-aging performance.This is because it has a small particle size that is not beneficial for physical crosslinking with paper fibers.More importantly,the introduction of acidic or oxidizing groups on nanocellulose accelerates the acid hydrolysis and oxidation rate of paper fibers,especially nanocellulose prepared by 2,2,6,6-tetramethylpiperidine-1-oxyl oxidation,which should not be used to protect paper documents.

关 键 词：protection of paper documents NANOCELLULOSE REINFORCEMENT aging resistance 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TS76[轻工技术与工程—制浆造纸工程] TQ352.7[化学工程]