Novel Method to Toughen Polypropylene by Uniaxial Compression Processing

Abstract:

Based on the orientation of molecule chain in fibers, it will urge a rapid increase in mechanical properties. Nevertheless, block materials mainly gain rise of mechanical properties by blend or composite today, it is hardly proposed on self-toughening materials by optimizing the microstructure because of a lack of relations between the performance and the microstructure in block materials. In this paper, a toughening PP was gained through small deformation of spherulite, processed by uniaxial compression. A series of measurements were applied, including impact test and polarizing optical microscope (POM). The results show that the impact properties of polypropylene (PP) have a rapid rise. POM suggests that the spherulite has deformed into ellipsoid even belt along the orientation of sample of PP, which plays an important role in toughening.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 3249-3252
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.3249
• Online since: May 2011
• Authors: Ming Li Jiao, Kai Yang, Yan Chen
• Keywords: Polypropylene (PP), Small Deformation of Spherulite, Toughen, Uniaxial Compression

References

[1] B.L. Smith: Nature Vol. 399(1999), p.761

[2] M.H. Huang: Langmuir Vol. 14(1998), p.7331

[3] A. Peterlin: J. Mater. Sci. Vol. 6(1971), p.490

[4] C. G'Sell, A. Dahoun: Mater Sci Eng. A Vol. 175(1994), P. 183

[5] Z. Bartczak, A.S. Argon, R. E. Cohen: Polymer Vol. 35(1994), p.3427

[6] P.S. Hope: Polym. Eng. Sci. Vol. 20(1980), p.540

[7] E. Lezak, Z. Bartczak: J. Appl. Polym. Sci. Vol. 105(2007), p.14

[8] K.Hong, A. Rastogi, G. Strobl: Macromolecules Vol. 37(2004), p.10174