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An Unusual Crystallization Behavior in Polyamide 6/Montmorillonite Nanocomposites
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2001
Year
EngineeringNanostructured PolymerPolymer NanocompositesChemistryCooled Pa6/mmtPolymersPolymer MaterialPolymer ProcessingPolyamide 6Unusual Crystallization BehaviorPolymer ChemistryMaterials SciencePolymer AnalysisClay MineralNanomaterialsPolymer ScienceX-ray DiffractionPolymer CharacterizationPolymer PropertyNanocomposite
The crystallization behavior and structure of polyamide 6 (PA6) nanocomposites containing 3 wt.-% montmorillonite (MMT) were investigated for different cooling conditions using differential scanning calorimetry and X-ray diffraction. In sharp contrast to PA6 and other semicrystalline polymers, increased cooling rates resulted in higher crystallinity of PA6/MMT. The highest crystallinity (60.8%) occurred in the liquid nitrogen-quenched PA6/MMT film. The results show that the γ-crystalline form is dominant in the rapidly cooled PA6/MMT.