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Effects of reinforcement filler and temperature on the stability of β-crystal in glass bead filled polypropylene
- Source :
-
Materials Science & Engineering: A . Jan2006, Vol. 415 Issue 1/2, p297-303. 7p. - Publication Year :
- 2006
-
Abstract
- Abstract: The effects of crystallization temperature (T c), glass bead content and its size on the formation of β-crystal and structural stability of originally formed β-crystal in glass bead filled polypropylene (PP) were examined. The differential scanning calorimetry (DSC) measurements indicated that the amount of β-phase in PP crystals was a function of the crystallization temperature and glass bead content. For a constant crystallization temperature, it was observed that the amount of β-crystal initially increased with increase in glass bead content up to 30wt.%, and then decreased slightly with further increase in the filler content. From the DSC data, a disorder parameter (S) was derived to define the structural stability of originally formed β-crystals. The structural stability of originally formed β-crystals was enhanced with increase in either the crystallization temperature or the glass bead content. Also, the influence of glass bead size (4–66μm) on the formation and stability of β-crystals in PP/glass bead blends was studied. Large glass bead particles suppressed the formation and decreased the stability of β-crystals. [Copyright &y& Elsevier]
- Subjects :
- *CRYSTALLOGRAPHY
*CRYSTALS
*CRYSTALLIZATION
*POWDERS
Subjects
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 415
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 19128085
- Full Text :
- https://doi.org/10.1016/j.msea.2005.09.093