Open Access Open Access  Restricted Access Subscription or Fee Access

Effects of Surface Modification on the Properties of Polyamide 6-66/Montmorillonite Nanocomposites

ZHU-WU YI, YUE-JUN LIU, XIAO-CHAO LIU, JIAN YANG

Abstract


Polyamide 6-66 (PA6-66) has received much attention in packaging industry due to the superior properties such as low energy consumption (low melting point) and favorable mechanical properties. In this work, two kinds of organo-modified montmorillonite (OMMT) DK5 and I.34TCN, and unmodified MMT DK0 were added into the PA6-66 matrix through melt blending to prepare PA6-66/montmorillonite (PA6-66/MMT) nanocomposites. The effect of MMT modification on the structure and properties of PA6-66/MMT nanocomposites was investigated using rheometer, transmission electron microscopy (TEM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), tensile and impact tests. From the TEM images, it is observed that the MMT dispersed homogeneously with in the polymer matrices, showing an exfoliated nanostructure. It was found that the storage modulus of PA6-66 is obviously improved by the incorporation of OMMT. The result of DSC illustrates that the crystallization temperature of matrix materials are average about 3°C higher than that of pure PA6-66. Results showed that the PA6-66 nanocomposite incorporated with DK5 to pure PA6-66 increases the tensile strength over 26%, while nanocomposite incorporated with I.34TCN has better toughness and higher storage modulus than other materials.

Keywords


PA6-66; montmorillonite (MMT); Nanocomposites; Melting blend.Text


DOI
10.12783/iapri2018/24460

Full Text:

PDF

Refbacks

  • There are currently no refbacks.