Morphology, thermal and mechanical behavior of polyamide 6/layered-silicate nanocomposites

The microstructure, morphology, thermal and mechanical properties of polyamide 6/layered-silicate nanocomposites (PLSN) have been studied using X-ray diffraction (XRD), tapping-mode atomic force microscopy (AFM), differential scanning calorimetry (DSC) and tensile tests. The XRD and AFM results indi...

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Bibliographic Details
Published in:	Composites science and technology Vol. 63; no. 3; pp. 331 - 337
Main Authors:	Liu, T.X, Liu, Z.H, Ma, K.X, Shen, L, Zeng, K.Y, He, C.B
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Oxford Elsevier Ltd 01-02-2003 Elsevier
Subjects:	A. Nanostructures A. Polymers Applied sciences B. Mechanical properties B. Thermal properties Composites Exact sciences and technology Forms of application and semi-finished materials Polymer industry, paints, wood Technology of polymers A. Polymers A. Nanostructures B. Mechanical properties B. Thermal properties Strengthening Organic clay Thermoplastics Lamellar compound Thermal transition Mechanical properties Dispersion reinforced material Tensile property Experimental study Composite material Amide 6 polymer Morphology Concentration effect Nanocomposite
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Summary:	The microstructure, morphology, thermal and mechanical properties of polyamide 6/layered-silicate nanocomposites (PLSN) have been studied using X-ray diffraction (XRD), tapping-mode atomic force microscopy (AFM), differential scanning calorimetry (DSC) and tensile tests. The XRD and AFM results indicate that the organically-modified layered silicates are intercalated in the polyamide 6 (PA6) matrix. Also, the crystallization and thermal behavior of PA6 are influenced by the addition of layered silicates into polymer matrix. A silicate-induced crystal transformation from the α-form to the γ-form of PA6 is confirmed by XRD and DSC, i.e., the formation of γ crystal is enhanced by the presence of silicates. In comparison to PA6, the thermal property of PLSN has been investigated using DSC. The possible origins of a new silicate-induced endothermic peak are discussed. Tensile tests show that the tensile modulus and yield strength increase while the strain-at-yield decreases with increasing clay loading.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0266-3538 1879-1050
DOI:	10.1016/S0266-3538(02)00226-9