Dynamic Scaling and Fractal Behavior of Phase Dispersion in Multicomponent Polymer Blends

Dynamic scaling and fractal behavior of phase dispersion in a binary polymer mixture of polypropylene with poly(cis-butadiene) rubber during processing in a batch mixer was studied by means of a back small-angle laser scattering (BSALS) online system. In the late stage of phase dispersion, a special...

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Bibliographic Details
Published in:Journal of macromolecular science. Physics 2009-09, Vol.48 (5), p.1059-1068
Main Authors: Yang, Yu-Ping, Su, Yi-Nao, Sun, Jin-Sheng, Wang, Kui-Cai, Jiang, Si-Qing, Yuan, Ying, Sheng, Jing
Format: Article
Language:English
Subjects:
Applied sciences
back small-angle laser scattering (BSALS)
Dispersions
Dynamical systems
Dynamics
Exact sciences and technology
Fractal analysis
fractal dimension
Fractals
Machinery and processing
Mixers
Moulding compound preparation. Mixing
phase dispersion
Plastics
Polymer blends
Polymer industry, paints, wood
Polypropylenes
quasi-self-similarity
Technology of polymers
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Summary:Dynamic scaling and fractal behavior of phase dispersion in a binary polymer mixture of polypropylene with poly(cis-butadiene) rubber during processing in a batch mixer was studied by means of a back small-angle laser scattering (BSALS) online system. In the late stage of phase dispersion, a special fractal behavior was found; different overlapped line groups existed simultaneously and the temporal distribution was stochastic. We defined the special behavior as quasi-self-similarity and calculated the fractal dimension, D p , by using the power spectrum method. The results show that the evolution of different fractal dimensions with time is consistent with average chord length of the dispersed phase.
ISSN:0022-2348
1525-609X
DOI:10.1080/00222340903039289