Investigation of biodegradability behavior, thermal properties and morphology of poly caprolactone/ poly lactic acod/ crystal nanocellulose nanocomposites

Document Type : Research Paper

Authors

1 Ph.D. Student of wood composite products, Zabol university, Zabol, Iran

2 Associate professor, Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Zabol, Zabol, Iran

3 University of Tehran

4 Professor, Department of Chemical, Amirkabir University, Tehran, Iran.

5 Assistant Professor., Department of wood and paper sciences and technology, University of Zabol, Zabol, Iran.

Abstract

This study aimed to investigate the biodegradability behavior and thermal properties of polycaprolactone / polylactic acid / nanocrystalline cellulose nanocomposites. Polycaprolactone and polylactic acid were dissolved in chloroform in ratios of 100/0, 95/5, 90/10, and 80/20%, and cellulose nanocrystals were added to the compounds at levels of 0, 0.5, 1, and 3%. Nanocomposites were prepared by solvent casting method. Then, their biodegradability behavior in the soil environment was investigated. The thermal properties of nanocomposites were investigated by thermogravimetric analysis and differential scanning calorimetry tests. Field emission scanning electron microscopy was also used for the microscopic study of nanocomposites. The results showed that with increasing cellulose nanocrystals to 1%, the mass loss of nanocomposites increased, but adding 3% of it led to a decrease in the mass loss of nanocomposites. With the increase of polylactic acid, up to 10%, the mass loss of the composites decreased, but the addition of 20% of it led to a decrease in the mass loss of the composites. The addition of cellulose nanocrystals to polycaprolactone increased its thermal resistance, but the addition of polylactic acid reduced this resistance. The results of scanning electron microscopy confirmed the degradation of nanocomposites in the soil.

Keywords

References

[1] Salehpour, SH., Jonoobi, M., Oksman, K., Ahmadzadeh, M. and Khanali, M., 2018. Study of biodegradability and mechanical properties of polyvinyl alcohol (PVA) reinforced with cellulose nanofiber (CNF). Iranian Journal of Wood and Paper Industries, 8(4): 497-508. (In Persian).
[2] Blázquez, E., Pérez, E., Lorenzo, V. and Cerrada, M. L., 2019. Crystalline Characteristics and Their Influence in the Mechanical Performance in Poly("-Caprolactone) / High-Density Polyethylene Blends. Polymers, 11(11): 1874.
[3] Hivechi, A., Hajir Bahrami, S. and Siegel, R.A., 2019. Drug release and biodegradability of electrospun cellulose nanocrystal reinforced polycaprolactone. Materials Science and Engineering: C, 94:929-937.
[4] Arrieta, M.P., Fortunati, E., Dominici, F., López, J. and Kenny, J.M., 2015. Bionanocomposite films based on plasticized PLA–PHB/cellulose nanocrystal blends. Carbohydrate Polymers, 121:265-275.
[5] Sessini, V., Navarro-Baena, I., Arrieta., M.P., Dominici, F., Lopez, D., Torre., L. Kenny., J.M. Dubois., P. Raquez., J. M. and Peponi., L., 2018. Effect of the addition of polyester-grafted-cellulose nanocrystals on the shape memory properties of biodegradable PLA/PCL nanocomposites. Polymer Degradation and Stability, 152: 126-138.
[6] Ashori, A.R., Shahreki, A. and Ismaeilimoghadam, S., 2019. Effects of cellulose nanocrystal addition on the properties of polyhydroxybutyrate-co-valerate (PHBV) films. Iranian Journal of Wood and Paper Industries, 10(1):153-164. (In Persian).
[7] Garcia, D.G., Martinez, J.L., Balart, R., Strömberg, E. and Moriana, R., 2018. Reinforcing capability of cellulose nanocrystals obtained from pine cones in a biodegradable poly(3-hydroxybutyrate)/poly(ε-caprolactone) (PHB/PCL) thermoplastic blend. European Polymer Journal, 104:10-18.
[8] Ju, D., Han, L., Guo, Z., Bian, J., Li, F., Chen, S., and Dong, L., 2015. Effect of the diameter of poly (lactic acid) fiber on the physical properties of poly(ɛ-caprolactone). International Journal of Biological Macromolecules, 76: 49-57.
[9] ASTM D5988-03, Standard Test Method for determining aerobic biodegradation in soil of plastic materials or residual plastic materials after composting, Annual book of ASTM: American Society for Testing and Materials, Philadelphia, PA, 2003.
[10] Kalita, N. K., Bhasney, S.M., Mudenur, C., Kalamdhad, A. and Katiyar, V., 2020. End-of-life evaluation and biodegradation of Poly (lactic acid) (PLA)/Polycaprolactone (PCL)/Microcrystalline cellulose (MCC) polyblends under composting conditions. Chemosphere, 247(8):125875.
[11] Germiniani, L. G. L., Da Silva, L. C. E. D., Plivelic, T. S. and Goncalves, M. C., 2019. Poly(e-caprolactone)/cellulose nanocrystal nanocomposite mechanical reinforcement and morphology: the role of nanocrystal pre-dispersion. Composites. journal of Materials Science, 54: 414–426.
 [12] Gibril, M. E., Ahmed, K., Lekha, P., Sithole, B., Khosla, A., and Furukawa, H., 2019. Effect of nanocrystalline cellulose and zinc oxide hybrid organic-inorganic nanofiller on the physical properties of polycaprolactone nanocomposite films. Microsystem Technologies, DOI:10.1007/s00542-019-04497-x.
 [13] Hoidy, W. H., Ahmad, M. B., Al-Mulla, J. and Ibrahim, N. A. B., 2010. Preparation and Characterization of Polylactic Acid/Polycaprolactone Clay Nanocomposites. Journal of Applied Sciences, 10(2): 97-106.
Iranian Journal of Wood and Paper Industries
Volume 12, Issue 3
December 2021
Pages 363-374

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