Polymer/Clay Nanocomposites Produced by Dispersing Layered Silicates in Thermoplastic Melts

Polymer/Clay Nanocomposites Produced by Dispersing Layered Silicates in Thermoplastic Melts

S. S. Pesetskii, S. P. Bogdanovich, V. N. Aderikha
Copyright: © 2021 |Pages: 29
DOI: 10.4018/978-1-7998-8591-7.ch041
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Abstract

Results of the studies of technology, structural features and properties of polymer/clay nanocomposites (n-PCM) prepared by melt compounding of thermoplastic polymers are systematized. Special attention is given to the analysis of the effect of nanoclays modification with surfactants on properties of nanocomposites and preparation features of nanomaterials based on polar, non-polar thermoplastics and polymer blends. Effect of technological factors and special compounding regimes in the technology of n-PCM with advanced technical characteristics is considered. Results of the original studies of the structure and properties of the hybrid composites, filled by high modulus fibers in addition to nanoclays, are presented.
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Brief Description Of Nanoclays And Techniques Of N-Pcm Analysis

Layered silicates routinely used for preparing nanocomposites include montmorillonite (MMT), hectorite and saponite, which belong to the series of 2:1 clay minerals or phyllosilicates. They possess two main properties, i.e. the ability to disperse to individual layers in the polymer bulk (layer thickness ≈1 nm, lateral size from 30 nm to several microns), the ability to adjust the chemical activity through reactions of ionic exchange with organic and inorganic cations. The gap between the layers or the gallery may be varied by ionic exchange.

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