Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Heat-Treated Polyvinyl Alcohol/Cellulose Nanocrystal Film with Improved Mechanical Properties and Water Resistance

내수성 및 기계적 물성이 향상된 열처리된 폴리비닐알코올/셀룰로오스 나노결정 필름

  • Nguyen, Son Van (School of Mechanical Engineering, Chonnam National University) ;
  • Lee, Bong-Kee (School of Mechanical Engineering, Chonnam National University)
  • ;
  • 이봉기 (전남대학교 기계공학부)
  • Received : 2021.09.21
  • Accepted : 2021.09.28
  • Published : 2021.11.30
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Abstract

In this study, the water resistance and mechanical properties of heat-treated polyvinyl alcohol (PVA)/cellulose nanocrystal (CNC) films were investigated. PVA is the most commonly used synthetic biodegradable polymers owing to its excellent properties. However, the water/moisture sensitivity and relatively poor mechanical properties of PVA limits its applications. Although heat treatment is a conventionally used method to improve the mechanical strength and water resistance of PVA, the effectiveness of this method is insufficient. Therefore, CNC was used to further improve the mechanical properties and water resistance of the heat-treated PVA film. PVA/CNC nanocomposites containing CNC contents of 0, 1, 3, 5, and 10 wt% were fabricated using solvent casting and subsequent heat treatment. The mechanical properties and water resistance of PVA/CNC films were significantly improved. The tensile strength and wet strength of the PVA/CNC film with a CNC content of 5 wt% (PVA/CNC 5%) were 184.5% and 136.0% higher than those of the untreated PVA, respectively. In addition, the water absorption and solubility of PVA/CNC 5% were 56.6% and 68.2% lower than those of the untreated PVA.

Keywords

Acknowledgement

This work is supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (21CTAP-C163851-01).

References

  1. Aslam, M., Kalyar, M. A. and Raza, Z. A., "Polyvinyl Alcohol: A Review of Research Status and Use of Polyvinyl Alcohol Based Nanocomposite", Polymer Engineering and Science, Vol. 58, No. 12, pp. 2119-2132, 2018. https://doi.org/10.1002/pen.24855
  2. Suganthi, S., Vignesh, S., Kalyana Sundar, J. and Raj, V., "Fabrication of PVA Polymer Films with Improved Antibacterial Activity by Fine-tuning via Organic Acids for Food Packaging Applications", Applied Water Science, Vol. 10, No. 4, pp. 1-11, 2020. https://doi.org/10.1007/s13201-019-1058-x
  3. Gadhave, R. V., Mahanwar, P. A. and Gadekar, P. T., "Study of Cross-linking between Boric Acid and Different Types of Polyvinyl Alcohol Adhesive", Open Journal of Polymer Chemistry, Vol. 9, No. 1, pp. 16-26, 2019. https://doi.org/10.4236/ojpchem.2019.91002
  4. Vineeth, S. K., Gadhave, R. V. and Gadekar, P. T., "Glyoxal Cross-linked Poluvinyl Alcohol-Microcrystalline Cellulose Blend as a Wood Adhesive with Enhanced Mechanical, Thermal and Performance Properties", Materials International, Vol. 2, No. 3, pp. 277-285, 2020.
  5. Jain, N., Singh, V. K. and Chauhan, S., "A Review on Mechanical and Water absorption Properties of Polyvinyl Alcohol Based Composites/Films", Journal of the Mechanical Behavior of Materials, Vol. 26, No. 5, pp. 213-222, 2017. https://doi.org/10.1515/jmbm-2017-0027
  6. Abdullah, Z. W. and Dong, Y., "Biodegradable and Water-Resistant Poly(vinyl) alcohol (PVA)/Starch (ST)/Glycerol (GL)/Halloysite Nanotube (HNT) Nanocomposite Films for Sustainable Fodd Packaging", Frontiers in Materials, Vol. 6, No. 4, pp. 1-17, 2019. https://doi.org/10.3389/fmats.2019.00001
  7. Kumeta, K., Nagashima, I., Matsui, S. and Mizoguchi, K., "Crosslinking of Poly(vinyl alcohol) via Bis (β-hydroxyethyl) Sulfone", Polymer Journal, Vol. 36, No. 6, pp. 472-477, 2004. https://doi.org/10.1295/polymj.36.472
  8. Noor Mohamed, N. H., Takagi, H. and Makagaito, A. N., "Mechanical Properties of Heat-treated Cellulose Nanofiber-reinforced Polyvinyl Alcohol Nanocomposite", Journal of Composite Materials, Vol. 51, No. 14, pp. 1971-1977, 2017. https://doi.org/10.1177/0021998316665238
  9. Santi, R., Cigada, A., Del Curto, B. and Fare, S., "Modulable Properties of PVA/Cellulose Fiber Composites", Journal of Applied Biomaterials and Functional Materials, Vol. 17, No. 1, pp. 1-7, 2019.
  10. Chanda, S. and Bajwa, D. S., "A Review of Current Physical Techniques for Dispersion of Cellulose Nanomaterials in Polymer Matrices", Reviews on Advanced material Science, Vol. 60, No. 1, pp. 325-341, 2021. https://doi.org/10.1515/rams-2021-0023