The effect of surface coating by acrylic acid-chitosan Nano hydrogel on water uptake, strength and optical properties of paper

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JALALI TORSHIZI H.; Aabedi bafraajerd A.; Shidpour R.

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Journal Paper

Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2019 | Volume:34 | Issue:1 (66) Page(s): 1-11

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Title

The effect of surface coating by acrylic acid-chitosan Nano hydrogel on water uptake, strength and optical properties of paper

Author(s)

JALALI TORSHIZI H. | Aabedi bafraajerd A. | Shidpour R. | Issue Writer Certificate

Keywords

Surface coatingQ1

paper propertiesQ1

chitosan-acrylic acid Nano hydrogelQ1

Abstract

Simultaneously providing different but paradox properties of paper products has been the utmost challenging issues of papermakers, e. g., reaching proper strength combined with high water absorbency in hygienic papers has been an issue. For example, higher fiber bonding results in lower accessibility to the hydrophilic functional group. Therefore, hydrogel has attained increasing importance in bulky cellulosic diapers. In this study, Surface coating on paper was investigated and compared with distillated water saturated papers. The chitosan-acrylic acid (AA) hydrogel was converted to nanoparticles using ultrasonic homogenizer and Dynamic Light scattering (DLS) confirmed the dimension of Nano scaled particles. SEM images and paper caliper revealed the formation of Nano-hydrogel coating layer on paper. The water uptake of all papers coated with 1, 1. 5 and 2% Nano-hydrogel increased significantly up to 50% compared to the untreated sample. Burst and dry tensile strengths were improved in a similar way as with water uptake, but tear strength was unchanged. Increased fiber bonding due to the presence of carboxylic acid in AA combined with hydroxyl and amine groups in chitosan, and the reinforcing effect of Nano hydrogel film formation on the cellulosic substrate resulted in strength improvement. Wet tensile strength of paper revealed remarkable increase at 2% coating application, but providing negligible enhancing effects at the lower dosages. Paper opacity, brightness and whiteness remained almost unchanged, but due to chitosan yellowish nature, the paper yellowness increased. The coated paper stiffness enhanced compared to untreated paper, but revealed lower stiffness than water saturated papers. The caliper, tensile and burst indices of water treated papers were reduced and stiffness increased.

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APA: Copy

JALALI TORSHIZI, H., Aabedi bafraajerd, A., & Shidpour, R.. (2019). The effect of surface coating by acrylic acid-chitosan Nano hydrogel on water uptake, strength and optical properties of paper. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 34(1 (66) ), 1-11. SID. https://sid.ir/paper/408849/en

Vancouver: Copy

JALALI TORSHIZI H., Aabedi bafraajerd A., Shidpour R.. The effect of surface coating by acrylic acid-chitosan Nano hydrogel on water uptake, strength and optical properties of paper. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2019;34(1 (66) ):1-11. Available from: https://sid.ir/paper/408849/en

IEEE: Copy

H. JALALI TORSHIZI, A. Aabedi bafraajerd, and R. Shidpour, “The effect of surface coating by acrylic acid-chitosan Nano hydrogel on water uptake, strength and optical properties of paper,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 34, no. 1 (66) , pp. 1–11, 2019, [Online]. Available: https://sid.ir/paper/408849/en

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