Abstract
In museums, libraries and archives, some of the paper relics, upon ageing, are very brittle and even cannot be handled without destroying the material. This is because of the depolymerization of cellulose and, consequently, the loss of mechanical strength. To prolong the life expectancy of paper relics, the poly(methyl methacrylate-co-butyl acrylate-co-styrene) (MMA-BA-ST) was used to strengthen the fragile paper fibers in this work. The relation between the mass concentration of MMA-BA-ST emulsion and the specific properties of papers (e.g., folding endurance, tensile strength, tearing strength, whiteness and glossiness) and the ageing resistance were investigated. In addition, the effect of MMA-BA-ST on different types of paper was also studied. Furthermore, the reinforcing mechanism of MMA-BA-ST on paper was also investigated by dissipative particle dynamics simulations. The results showed that MMA-BA-ST could significantly improve the mechanical properties and ageing resistance of papers.
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