Effects of reinforcement filler and temperature on the stability of beta-crystal in glass bead filled polypropylene
Data(s) |
2006
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Resumo |
The effects of crystallization temperature (T,), glass bead content and its size on the, formation of beta-crystal and structural stability of originally formed beta-crystal in glass bead filled polypropylene (PP) were examined. The differential scanning calorimetry (DSC) measurements indicated that the amount of beta-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 beta-crystal initially increased with increase in glass bead content up to 30 wt.%, 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 beta-crystals. The structural stability of originally formed beta-crystals was enhanced with increase in either the crystallization temperature or the glass bead content. Also, the influence of glass bead size (4-66 mu m) on the formation and stability of beta-crystals in PP/glass bead blends was studied. Large glass bead particles suppressed the formation and decreased the stability of beta-crystals. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Yuan Q;Jiang W;An LJ;Misra RDK.Effects of reinforcement filler and temperature on the stability of beta-crystal in glass bead filled polypropylene,MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING ,2006,415(1-2 ):297-303 |
Palavras-Chave | #X-RAY-DIFFRACTION #ISOTACTIC POLYPROPYLENE #CRYSTALLIZATION BEHAVIOR #PP/CLAY NANOCOMPOSITES #HIERARCHICAL STRUCTURE #MECHANICAL-PROPERTIES #NUCLEATING-AGENTS #COMPOSITES #POLYMERS #ALPHA |
Tipo |
期刊论文 |