Effects of nanotalc inclusion on mechanical, microstructural, melt shear rheological, and crystallization behavior of polyamide 6‐based binary and ternary nanocomposites

Abstract

The objective of the study is to investigate the effect of inclusion of nanotalc on the strength properties of polyamide 6 (PA6)‐based binary and ternary nanocomposites. Binary nanocomposites were prepared by melt compounding of PA6 with varying content of nanotalc (1, 2, and 4 wt%). Ternary nanocomposites were prepared by melt compounding of compatibilized blend of PA 6 and ethylene‐co‐butyl acrylate (EBA elastomer) with varying content of nanotalc (1, 2, and 4 wt%). Both the binary and ternary nanocomposites registered a very high improvement in the strength/stiffness‐related properties at lower filler loading of 1 wt%. Phase morphology of the composites studied by SEM, TEM, and XRD revealed the formation of extended brane‐like structures and delaminated talc layers in the binary nanocomposites. The modulus predicted by Halpin‐Tsai and Mooney equation suggests that the composites retained a very good aspect ratio after melt mixing. Orientation effects of nanotalc enhanced the melt flow behavior in the composites. POLYM. ENG. SCI., 50:1978–1993, 2010. © 2010 Society of Plastics Engineers

Synthetic silico-metallic mineral particles (SSMMP) as nanofillers: comparing the effect of different hydrothermal treatments on the PU/SSMMP nanocomposites properties

“…4, 5), an increase of a second peak related to the increase of the SSMMP content can be seen. This behavior is probably due to the formation of a network structure by the surface hydroxyl groups of the nanofiller through hydrogen bonding with the polymeric chain as described in literature [10]. Indeed, the amount of hydroxyl groups present at the SSMMP layer edges increases with the increase of the specific surface area [7].…”

“…Natural talc is difficult to disperse in water and considered to be hydrophobic and more compatible with polymer matrix; it has been widely used as an effective filler in polymer, such as polyethylene [9], polyamide [8,10], polylactide [11], polyurethane [12], PU/PP blends [13,14], poly(lactic acid) [15,16] composites, to improve their properties. Especially, there are many researches on the effect of talc on the mechanical properties, thermostability, crystallizability and rheology of polypropylene/talc composites [8,[17][18][19][20][21][22][23][24][25][26].…”

Effect of operational parameters and stress energies on stirred media milling of talc

“…The usage of small talc particles has been studied in different applications, including reinforcement of thermoplastic starch films [7], food packaging bags [9], binary and ternary nanocomposites [10,11], and semi-crystalline plastics [12]. The smaller size of talc particles has been found to provide better properties for all these applications.…”

Mechanical, morphological, and thermal properties of nanotalc reinforced PA6/SEBS‐g‐MA composites

“…The effect of nanotalc on binary PA6/talc and ternary PA6/ethylene butyl acrylate (EBA)-g-MA/EBA/talc nanocomposites was investigated by Balamurugan and Maiti. 49 It is observed that binary and ternary nanocomposites registered high improvement in the stiffness/strength related properties at lower nanotalc content of 1 wt %. The improvement in strength related properties is due to the retention of high aspect ratio of nanotalc and ability of nanotalc particles to orient along the melt flow direction in the nanocomposites.…”

“…The effect of nanotalc on binary PA6/talc and ternary PA6/ethylene butyl acrylate (EBA)‐ g ‐MA/EBA/talc nanocomposites was investigated by Balamurugan and Maiti . It is observed that binary and ternary nanocomposites registered high improvement in the stiffness/strength related properties at lower nanotalc content of 1 wt %.…”