Hostname: page-component-848d4c4894-2pzkn Total loading time: 0 Render date: 2024-05-10T13:33:47.617Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of network structure from different processing conditions on the mechanical property of semi-crystalline polymers

Published online by Cambridge University Press:  11 June 2014

Xin Dong ,
David McDowell  and
Karl Jacob
Xin Dong
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
David McDowell
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
Karl Jacob
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
Get access

Abstract

Semi-crystalline structures were prepared from different processing condition. Biaxial oriented melt were crystallized at 375 K and atmospheric pressure for 10 nanoseconds (ns), to generate a lamellar semi-crystalline structure. Similar structures were also prepared from deformation of a cubic amorphous initial structure isothermally at 375 K. For comparison, two different thermostats, the constant stress (NPT) and constant volume (NVT) conditions were applied to the system during 10 ns of crystallization. The semi-crystalline samples shared common morphological features such as in the crystallinity, crystal orientation, lamellae thickness and density distribution, etc. However, during the subsequent uniaxial tensile deformation test of the samples to strain of 0.5, different stress-strain behaviors were demonstrated. By combining the observations of morphologies during deformation tests and analysis of the stress-strain curves, conclusions were made that the effectiveness of the network had a strong influence on the mechanical property and strain hardening behavior. The oriented network from the constant stress crystallization, owing to the taut chains, gave rise to optimal mechanical response with substantial strain-hardening.

Keywords

polymercrystallinesimulation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1619: Symposium A – Modeling and Theory-Driven Design of Soft Materials , 2014 , mrsf13-1619-a09-10
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Xu, G.Q., Mattice, W.L., Comput Theor Polym S, 11 (2001) 405–413.CrossRefGoogle Scholar
Rapold, R.F., Mattice, W.L., Journal of the Chemical Society-Faraday Transactions, 91 (1995) 2435–2441.CrossRefGoogle Scholar
Boyd, R.H., Gee, R.H., Han, J. et al. ., Journal of Chemical Physics, 101 (1994) 788–797.CrossRefGoogle Scholar
Waheed, N., Lavine, M.S., Rutledge, G.C., Journal of Chemical Physics, 116 (2002) 2301–2309.CrossRefGoogle Scholar
Yi, P., Rutledge, G.C., Journal of Chemical Physics, 131 (2009).Google Scholar
Ko, M.J., Waheed, N., Lavine, M.S., Rutledge, G.C., Journal of Chemical Physics, 121 (2004) 2823–2832.CrossRefGoogle Scholar
Capaldi, F.M., Boyce, M.C., Rutledge, G.C., Physical Review Letters, 89 (2002).CrossRefGoogle Scholar
Capaldi, F.M., Boyce, M.C., Rutledge, G.C., Polymer, 45 (2004) 1391–1399.CrossRefGoogle Scholar
Hossain, D., Tschopp, M.A., Ward, D.K., et al. ., Polymer, 51 (2010) 6071–6083.CrossRefGoogle Scholar
Foteinopoulou, K., Karayiannis, N. C. Laso, M. et al. ., J. Phys. Chem. B, 113(2009) 442–455 CrossRefGoogle Scholar
Peleg, O., Kroger, M. and Rabin, Y., Physical review E, 79 (2009) 040401(R)CrossRefGoogle Scholar
Sliozberg, Y. R., Randy, Mrozek, A., Schieber, J. D., Polymer, 54 (2013) 2555–2564 CrossRefGoogle Scholar
Plimpton, S., Journal of Computational Physics, 117 (1995) 1–19.CrossRefGoogle Scholar
Paul, W., Yoon, D.Y., Smith, G.D., Journal of Chemical Physics, 103 (1995) 1702–1709.CrossRefGoogle Scholar
Lee, S., Rutledge, G.C., Macromolecules, 44 (2011) 3096–3108.CrossRefGoogle Scholar
Shepherd, J.E., PhD dissertation Mechanical Engineering, Georgia Institute of Technology, USA, 2006.Google Scholar
Peacock, A.J., Handbook of polyethylene: structures, properties and applications, 2000.CrossRefGoogle Scholar