Abstract
A tri-functional epoxy resin was used to cross-link polyamide-6 (PA6) during chemical extrusion foam molding and its loading-dependent effect on the melting, crystallization properties, crosslinking degree, and melt strength of PA6 as well as the cell morphology of extruded foam specimens was determined. As the tri-functional epoxy resin loading increased the crystallization and melting temperatures of PA6 decreased whereas the area of the melting peak and crystallinity of PA6 first increased and then decreased. Incorporation of epoxy resin also reduced the PA6 processing temperature. Increased tri-functional epoxy resin loading enhanced melt viscosity, the crosslinking degree and melt strength of PA6. Scanning electron microscopy revealed that the foamability of PA6 was obviously improved by the addition of the epoxy resin.
Similar content being viewed by others
REFERENCES
K. Holmberg, P. Andersson, and A. Erdemir, Tribol. Int. 47, 221 (2012).
D. L. Tomasko, A. Burley, L. Feng, S.-K. Yeh, K. Miyazono, S. Nirmal-Kumar, I. Kusaka, and K. Koelling, J. Supercrit. Fluids 47, 493 (2009).
V. Kumar, Prog. Rubber Plast. Technol. 9, 54 (1993).
J. E. Martini-Vvedensky, F. A. Waldman, and N. P. Suh, SPE ANTEC Tech. Pap. 28, 674 (1982).
D. F. Baldwin and N. P. Suh, SPE ANTEC Tech. Pap. 38, 1503 (1992).
K. A. Seeler andV. Kumar, J. Reinf. Plast. Compos. 12, 359 (1993).
S. W. Cha, N. P. Suh, D. F.Baldwin, and C. B. Park, US Patent No. 5 158 986 (1992).
V. Kumar and N. P. Suh, Polym. Eng. Sci. 30, 1323 (1990).
C. B. Park, D. F. Baldwin, and N. P. Suh, in Proceedings of the Winter Annual Meeting, Symposium on the Mechanics of Plastics and Plastic Composites, New Orleans, LA, 1993 (New Orleans, LA, 1993).
D. F. Baldwin, N. P. Suh, and M. Shimbo, Cell. Polym. 38, 109 (1992).
D. F. Baldwin, C. B. Park, and N. P. Suh, Polym. Eng. Sci. 36, 1437 (1996).
M. Shimbo, K. Nishida, T. Heraku, K. Iijima, T. Sekino, and T. Terayama, in Proceeding of First International Conference on Thermoplastic Foam, Parsippany, New Jersey, USA, 1999 (New Jersey, 1999), p. 132.
M. Shimbo, H. Kawashima, and S. Yoshitani, in Proceeding of Second International Conference on Thermoplastic Foam, Parsippany, New Jersey, USA, 2000 (New Jersey, 2000), p. 162.
J. Xu and D. Pierick, J. Injection Molding Technol. 5, 152 (2001).
A. Chandra, S. Gong, M. Yuan, L. S. Turng, P. Gra-mann, and H. Cordes, Polym. Eng. Sci. 45, 52 (2005).
M. Yuan and L. S. Turng, Polymer 46, 7273 (2005).
M. Yuan, L. S. Turng, S. Gong, D. Caulfield, C. Hunt, and R. Spindler, Polym. Eng. Sci. 44, 673 (2004).
J. Peng, P. J. Walsh, R. C. Sabo, L. S. Turng, and C. M. Clemons, Polymer 84, 158 (2016).
K. C. Chiou and F. C. Chang, J. Polym. Sci., Part B: Polym. Phys. 38, 23 (2000).
J. An, J. Ge, and Y. Liu, J. Appl. Polym. Sci. 60, 1803 (1996).
S. C. Tjong and Y. Z. Meng, Mater. Res. Bull. 39, 1791 (2004).
C. R. Chiang and F. C. Chang, J. Polym. Sci., Part B: Polym. Phys. 36, 1805 (1998).
K. Ho, L. Kale, and S. Montgomery, J. Appl. Polym. Sci. 85, 1408 (2002).
Y. Ema, M. Ikeya, and M. Okamoto, Polymer 47, 5350 (2006).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhijuan Xu, Lin, X., Luo, C. et al. The Application of a Tri-Functional Epoxy Resin as a Crosslinking Agent in Extruded Polyamide-6 Foam. Polym. Sci. Ser. B 61, 574–581 (2019). https://doi.org/10.1134/S1560090419050208
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1560090419050208