Hydrophobization of paper using organosilane and titanium dioxide nanoparticles applying layer by layer method

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Ashrafi Rad b.; AZADFALLAH M.; Kolaei Moakhar f.; IZADYAR S.; RAHMANINIA M.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2018 | Volume:32 | Issue:4 (61) Page(s): 530-540

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Information Journal Paper

Title

Hydrophobization of paper using organosilane and titanium dioxide nanoparticles applying layer by layer method

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Keywords

Layer by layer (LBL)Q1

titanium dioxideQ1

organosilaneQ1

roughnessQ2

contact angleQ1

hydrophobicityQ1

Abstract

Utilization of paper as packaging material and developing technologies such as sensors on paper-based substrate are drastically dependent to control of cellulosic fiber hydrophilicity and enhancement of its hydrophobic properties. Thus, this work carried out with the aim of developing hydrophobic surface on cellulosic fiber applying layer by layer (LBL) method while keeping and enhancing the properties of paper network. The deposition was implemented by titanium dioxide nanoparticles and polyacrylic acid as cationic and anionic layer respectively on the fibers of unbleached hardwood kraft pulp and using Zycosil and fluoroalkyl silane on the last layer. The hand-sheets were then made using this modified fiber. The contact angle and roughness were measured to evaluate the effect of layers on hydrophobicity. The results indicated that roughness increased with the number of layers. The instant contact angle was also increased with the number of layers and reached approximately to 110 degrees at 7th layer. The dynamic contact angles dropped with increasing the number of layers. The fluorosilane deposition as 8th layer in mixture with Zycosil showed more effective on surface energy reduction. The instant contact angle of Zycosil treated paper was measured as125 degrees which dropped significantly to 48 degrees after 30 seconds. However, fluorosilane modified paper exhibited contact angle of 140 degrees at the same time. In addition, the presence of titanium dioxide nanoparticles on the surface of fiber was demonstrated by scanning electron microscopy (SEM) of paper surface.

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APA: Copy

Ashrafi Rad, b., AZADFALLAH, M., Kolaei Moakhar, f., IZADYAR, S., & RAHMANINIA, M.. (2018). Hydrophobization of paper using organosilane and titanium dioxide nanoparticles applying layer by layer method. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 32(4 (61) ), 530-540. SID. https://sid.ir/paper/109462/en

Vancouver: Copy

Ashrafi Rad b., AZADFALLAH M., Kolaei Moakhar f., IZADYAR S., RAHMANINIA M.. Hydrophobization of paper using organosilane and titanium dioxide nanoparticles applying layer by layer method. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2018;32(4 (61) ):530-540. Available from: https://sid.ir/paper/109462/en

IEEE: Copy

b. Ashrafi Rad, M. AZADFALLAH, f. Kolaei Moakhar, S. IZADYAR, and M. RAHMANINIA, “Hydrophobization of paper using organosilane and titanium dioxide nanoparticles applying layer by layer method,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 32, no. 4 (61) , pp. 530–540, 2018, [Online]. Available: https://sid.ir/paper/109462/en

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