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- Title
Statistical analysis of the phase separation of LDPE/PA-6 blends compatibilized with SEBS- g-MA and/or organoclays.
- Authors
Zuev, Vjacheslav V.; Bronnikov, Sergei
- Abstract
The morphology of the binary and ternary blends prepared by the melt compounding of low density polyethylene (LDPE), PA and SEBS- g-MA (S), as well as of the composites containing the same polymers or their blends with different content of the commercial organoclay (Cloisite 20A) was studied with SEM and afterwards analyzed statistically. The statistical ensembles of the PA phase droplets embedded into the LDPE matrix were successfully described using principles of irreversible thermodynamics and the mean droplet diameters were determined. Analysis of the mean droplet diameter as a function of time allowed recognition of two regimes of the phase separated structure formation. The first process is caused by the differences in the Flory-Huggins segmental interaction parameter of the components which is mainly responsible for the phase-separating domain structure at the mechanical blending upon specific time and temperature, both typical for a specific composition. The second process of the domain structure formation is the coarsening. Both regimes were quantitatively described with the universal law for the cluster growth.
- Subjects
LOW density polyethylene; NONEQUILIBRIUM thermodynamics; MIXING of plastics; FERROMAGNETIC materials; MAGNETIC domain; POLYMERS
- Publication
Journal of Polymer Research, 2010, Vol 17, Issue 5, p731
- ISSN
1022-9760
- Publication type
Article
- DOI
10.1007/s10965-009-9363-y