The Effect of spray coating and freezing of brown liner paper on its physical and mechanical properties

Document Type : Research Paper

Authors

1 Department of Wood and Paper Engineering, Savadkooh Branch, Islamic Azad University, Savadkooh, Iran

2 Assistant prof., Department of Wood Industry, Technical and Vocational University (TVU), Tehran, Iran

10.22034/ijwp.2023.1986813.1580

Abstract

This research was conducted with the aim of studying the effect of spraying with nano-polyurethane and freezing the treated samples on the physical and mechanical properties of brown liner paper. For this purpose, 128 g.m-2 paper was prepared and its characteristics were evaluated. To coat the surface of the paper, nano-polyurethane is first sprayed using a sprayer in an amount of about 15 grams per square meter for each surface. Then, the coated paper is placed in the environment and the oven (temperature of about 70 οC) to dry, so that the coating material stabilizes on its surface. Then the samples were placed inside the freezer for two and four months, before the tests of the control and coated samples, they were placed in standard environmental conditions (temperature of 20 οC and relative humidity of 65 %). The results showed that spraying increased thickness, decreased water absorption, and increased burst streangth, increased tear streangth. Also, there was no specific change in tensile strength and ring crush test. In sprayed and frozen samples, with the increase in thickness, water absorption and tensile strength decrease, burst streangth and tear streangth compared to non-frozen control samples, an increase was observed. Ring crush test against the was also not significant. The sprayed samples showed very few pores. The thickness and tear streangth in the machine direction of the one-time sprayed brown liner paper increased by 8.96% and 2.3%, respectively, compared to the control sample. water absorption, tensile strength and tear streangth, burst streangth and ring crush test against the ring in the machine direction of one-time sprayed brown liner paper compared to the control sample showed decreased as 19.53, 3.83, 2.4 and 3.14, respectively.

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References

[1] Marzbani, P., Azadfallah, M., Yousefzadeh, M., Najafi, F. and Pourbabaee, A. A., 2020. A novel paper packaging coated with polyethylene wax based dispersion barrier coating for food packaging applications. Iranian Journal of Wood and Paper Industries, 11(1): 85-95. (In Persian).
[2] Zaheri, S. and Asadpour, Q., 2018, investigating the feasibility of using various types of biopolymer coatings on paper packaging materials. Journal of Packaging Science and Technology, 10(38):18-27. (In Persian).
[3] Asadi khansari, R. and Dehghani Firouzabadi, M., 2013. Introduce of new paper and cardboard in food packaging. Journal of Packaging Science and Technology, 16(4): 46-57. (In Persian).
[4] Cha, D. S. and Chinnan, M. S., 2004. Biopolymer-based antimicrobial packaging: a review. Critical reviews in food science and nutrition, 44(4): 223-237.
[5] Saraeyan, A., Heydari, S. and Shakeri, A., 2015. Effect of coating paper made from bagasse soda pulp using biodegradable polymer. Iranian Journal of Wood and Paper Science Research, 31(2): 204-210. (In Persian).
[6] Malinconico, M., Cerruti, P., Santagata, G. and Immirzi, B., 2014. Natural Polymers and Additives in Commodity and Specialty Applications: A Challenge for the Chemistry of Future. Macromolecular Symposia, 337(1): 124-133.
[7] Irimia-Vladu, M., 2014. “Green” electronics: biodegradable and biocompatible materials and devices for sustainable future. Chemical Society Reviews, 43(2): 588 -610.
[8] Tatari, A. A. and Shekarian, A., 2014. The Importance of Cellulose Derivatives in the Production of Biodegradable Films for Food Packaging. Journal of Applied Science and Technology, 5(19): 22-31. (In Persian).
[9] Liu, K., Miao, S., Su, Z., Sun, L., Ma, G. and Zhang, S. 2016. Castor oil‐based waterborne polyurethanes with tunable properties and excellent biocompatibility. European Journal of Lipid Science and Technology, 118(10): 1512-1520.
[10] Ashori, A. and Raverty, W. D., 2007. Printability of sized kenaf (Hibiscus cannabinus) papers. Polymer-Plastics Technology and Engineering, 46(7): 683-687.
[11] Ashori, A., Raverty, W. D. and Harun, J., 2005. Effect of chitosan addition on the surface properties of kenaf (Hibiscus cannabinus) paper. Fibers and Polymers, 6(2): 174-179.
[12] Ebrahimpour Kasmani, J. and Samariha, A., 2022. Effects of different levels of nanocellulose and chemical pulp on the optical and mechanical properties of money paper made with bottom combers pulp. BioResources, 17(2): 2667-2679.
[13] Schlordt, T., Dermeik, B., Beil, V., Freihart, M., Hofenauer, A., Travitzky, N. and Greil, P., 2014. Influence of calendering on the properties of paper-derived alumina ceramics. Ceramics International, 40(3): 4917- 4926.
[14] Aloui, H., Khwaldia, K. and Slama, M., 2011. Effect of glycerol and coating weight on functional properties of biopolymer coated paper, carbohydrate polymers. 86(2): 1063 -1072.
[15] Han, J. H. and Krochta, J. M. 2001. Physical properties and oil absorption of whey‐protein‐coated paper. Journal of food science, 66(2): 294-299.
[16] Ebrahimpour Kasmani, J., Samariha, A. and Mahdavi, S., 2022. The effect of different additives on the properties of handsheet prepared from office waste paper. Iranian Journal of Wood and Paper Industries, 13(2): 119-131. (In Persian).
Iranian Journal of Wood and Paper Industries
Volume 14, Issue 1
June 2023
Pages 31-40

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