Grafted nanocellulose and alkaline nanoparticles for the strengthening and deacidification of cellulosic artworks.
Journal of Colloid and Interface Science(2020)
摘要
Cellulose nanocrystals were effectively grafted and stably dispersed in ethanol. It was shown that the use of ethanol as a dispersing medium, and the addition of alkaline nanoparticles act in a synergistic way, increasing the interactions between grafted cellulose nanocrystals, leading to the formation of clusters. These dispersions are thixotropic, a behavior particularly appealing to conservation purposes, since they can be applied in the liquid state, or, when a more confined application is required, they can be applied in a gel-like state. As a result of the application, an improvement in the mechanical properties of paper and an increase of pH were obtained.
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关键词
Nanocellulose,Grafting,Alkaline nanoparticles,Deacidification,Strengthening,Paper,Calcium carbonate,Calcium hydroxide,Cultural heritage conservation
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