Ghadami Jadval Ghadam, A., Karimi, H. (2015). Synthesis and Characterization of Polyamide-66/Calcium Carbonate Composites. Journal of Chemical and Petroleum Engineering, 49(1), 63-78. doi: 10.22059/jchpe.2015.9962
Aboutaleb Ghadami Jadval Ghadam; Hajir Karimi. "Synthesis and Characterization of Polyamide-66/Calcium Carbonate Composites". Journal of Chemical and Petroleum Engineering, 49, 1, 2015, 63-78. doi: 10.22059/jchpe.2015.9962
Ghadami Jadval Ghadam, A., Karimi, H. (2015). 'Synthesis and Characterization of Polyamide-66/Calcium Carbonate Composites', Journal of Chemical and Petroleum Engineering, 49(1), pp. 63-78. doi: 10.22059/jchpe.2015.9962
Ghadami Jadval Ghadam, A., Karimi, H. Synthesis and Characterization of Polyamide-66/Calcium Carbonate Composites. Journal of Chemical and Petroleum Engineering, 2015; 49(1): 63-78. doi: 10.22059/jchpe.2015.9962
Synthesis and Characterization of Polyamide-66/Calcium Carbonate Composites
1Department of Petroleum and Chemical Engineering, Yasouj Branch, Islamic Azad University, Yasouj, Iran
2Department of Chemical Engineering, Yasouj University, Yasouj, Iran
Abstract
Polyamide-66(PA66)/CaCO3 micro- and nano-composites were prepared using a polymer solution method at filler loading of 0, 1, 2 and 3 weight percent. Nano-size of CaCO3 was synthesized by micro-emulsion technique. The material was characterized by XRD, SEM, FTIR and UV-VIS techniques. XRD results of composites suggested that CaCO3 particles are found in the amorphous phase of the semi-crystalline thermoplastic and α-crystalline form of thermoplastic is thermodynamically more stable than the γ-crystalline forms at room temperature. The uniform dispersion of 1, 2, and 3 wt. % surface modified micro- and nano-CaCO3within PA66 were evidenced from SEM images. FT-IR analysis confirmed the chemical structure of the PA66. Absorption peaks for all required chemical groups were showed in the FTIR spectra: N-H stretch at 3305.52 cm-1, C-H stretch at 2865.02-2936.45 cm-1, Amide-I at 1638.76 cm-1, and Amide-II at 1539.55 cm-1. UV-VIS data showed that the presence of CaCO3 particles in PA66 results in the decrease of energy-band gaps of the composites. In addition, the results showed that incorporation of CaCO3 particles increased the modulus and tensile strength of neat PA66 however decreased its yield and elongation at break.
[1] Avella, M., Cosco, S., Lorenzo, M.L., Pace, E.D. and Errico, M.E. (2005). "Influence of CaCO3 nano-particles shape on thermal and crystallization behavior of isotactic polypropylene based nano-composites." J. Therm. anal. Calorimet., Vol. 80, No. 1, pp. 131-136.
[2] Jia, X., Herrera-Alonso, M. and Mc-Carthy, T.J. (2006). "surface modification; Part 1: Targeting the amide groups for selective introduction of reactive functionalities." Polym., Vol. 47, No. 14, pp. 4916-4924.
[3] Miao, S. (2003). "Investigation on NIR coating mechanism of PS-b-PAA coated calcium carbonate particulate." App. Surf. Sci., Vol. 220, No. 1-4, pp. 298-303.
[4] Sonawane, S.S., Mishra, S. and Shimpi, N.G. (2010). "Effect of Nano-CaCO3 on Mechanical and Thermal Properties of Polyamide Nano-composites." Polym. Plast. Tech. and Eng., Vol. 49, pp. 38-44.
[5] Ghadami, J.G.A. and Idrees, M. (2013). "Characterization of CaCO3 Nanoparticles Synthesized by Reverse Microemulsion Technique in Different Concentrations of Surfactants." Iran. J. Chem. Chem. Eng., Vol. 32, No. 3, pp. 27-35.
[6] Davis, E.A. and Mott, N. (1970). "Conduction in noncrystalline systems: V. Conductivity, optical absorption, and photoconductivity in amorphous semiconductors. " Phil. Mag., Vol. 22, No. 179, pp. 903-922.
[7] Brendan, R. (2002). "Thin film testing - ASTM D882, in ‘Annual Book of ASTM Standards." ASTM International Publisher, Philadelphia, Vol. 1, pp. 160.
[8] Liu, Y., Cui, L., Guan, F., Gao, Y., Hedin, N.E. and Fong, H. (2007). "Crystalline morphology and polymorphic phase transitions in electrospun nylon-6 nanofibers." Macromol., Vol. 40, No. 17, pp. 6283-6290.
[9] Chen, M., Feng, Y., Wang, L., Zhang, L. and Zhang, J. (2006). "Study of palladium nanoparticles prepared from water-in-oil microemulsion. " Collo. Surf. A: Physicoch. Eng. Aspec., Vol. 281, No. 1-3, pp. 119–124.
[10] Arimoto, H. (1964). "α–γ Transition of nylon-6." J. Polym Sci, Part A, Vol. 2, No. 5, pp. 2283-2295.
[11] Kohan, M.I. (1973). "Nylon Plastics." John Wiley & Sons, New York.
[12] Basilia, B.A., Panganiban, M.E.G., Collado, A.A.V. and De Yro, P.A. (2007). "Study on the functionality of nano-precipitated calcium carbonate as a filler in thermoplastics." J. Sol. Mech. Mater. Eng., Vol. 1, No. 4, pp. 564-570.
[13] Suel, S.D., Lee, S.R. and Kim, Y.H. (2004). "Poly (methyl methacrylate) Encapsulation of Calcium Carbonate Particles." J. Poly. Sci.; Part A:Polym. Chem., Vol. 42, No. 16, pp. 4063-4073.
[14] Charles, J., Ramkumaar, G.R., Azhagiri, S. and Gunasekaran, S. (2009). "FTIR and Thermal Studies on Nylon-66 and 30% Glass Fibre Reinforced Nylon-66." E-J.Chem., Vol. 6, No. 1, pp. 23-33.
[15] Zaki, M.F. (2008). "Gamma-Induced Modification on Optical Band Gap of CR-39 SSNTD." Braz. J. Phys., Vol. 38, No. 4, pp. 558-562.
[16] Cayer-Barrioz, J., Ferry, D., Frihi, K., Cavalier, R. and Seguela, G.V. (2006). "Microstructure and Mechanical Behavior of Polyamide 66-Precipitated Calcium Carbonate Composites: Influence of the Particle Surface Treatment." J. Appl. Polym. Sci., Vol. 100, pp. 989–999.
[17] Hanim, H., Zarina, R., Ahmad, M.Y.F., Mohd, Z.A. and Hassan, A. (2008). "The Effect of Calcium Carbonate Nanofiller on the Mechanical Properties and Crystallisation Behaviour of Polypropylene." Malay. Polym. J., Vol. 3, No.12, pp. 38-49.
[18] Zhu, B.K., Xie, S.H., Xu, Z.K. and Xu, Y.Y. (2006). "Preparation and properties of the polyimide/multi-walled carbon nanotubes (MWNTs)." Compos. Sci. Technol., Vol. 66, pp. 548-554.
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