Evaluation of the Effect of Immersion Time on the Physical Properties of Historical Papers Treated with Cellulose Nanofibers

Article Type:
Research/Original Article (دارای رتبه معتبر)

This study prepared a suspension of cellulose nanofibers with a concentration of 1% by weight with water, and samples were immersed in the treatment material for 30, 60, 90, 120, 150, and 180 seconds. The effect of parameters such as colorimetric, pH, tensile strength and contact angle before and after ageing was performed. The results showed that after treatment, the color of the samples became lighter than the control sample without treatment. </strong>But ageing has reduced the brightness of the paper. The color of the treated samples was lighter for 150 and 180 seconds than the other samples. The pH of the samples increased after treatment. The highest pH was related to the sample treated for 150 seconds before and after ageing. The highest tensile strength was obtained before and after ageing by increasing the samples' immersion period for 150 and 180 seconds. The results of measuring the contact angle showed that the treatment of cellulose nanofibers had no effect on increasing the paper resistance to wetting and did not prevent the paper surface from getting wet.

Journal of Color Science and Technology, Volume:17 Issue: 3, 2023
233 to 244
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